SF530
User Manual: SF530
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SAMSUNG FACSIMILE SF-530/531P SERVICE Manual FACSIMILE CONTENTS 1. Precautions 2. Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded Views and Parts List 6. Block Diagram 7. Connection Diagram ELECTRONICS This service manual is also provided on the web, the ITSELF system Samsung Electronics Co., Ltd. http://itself.sec.samsung.co.kr © Samsung Electronics Co.,Ltd. September 2001 Printed in Korea. VERSION NO. : 1.00 CODE : JC-0059A This manual is stated and provided for service description. All rights reserved. Any parts of the information in this manual are prohibited from free duplication, use or translation without prior written approval except in cases allowed by the Copyright Act. Specifications are subject to change without prior notice. Samsung Electronics Digital Printing CS Group Copyright (c) 2001. 9. Precautions 1. Precautions Please read the following carefully to prevent any accidents and not to damage the unit during service. 1-1 Safety Precautions 1. Safety Precautions There are some electric or machinery parts with safety related property. If the parts replaced are different from the original, the safety may not function. Even if the part could allow higher voltage than that of the part used, do not replace it and use a regular product clarified in specifications. 2. Be careful not to leave a switch, a cover or a safety device out when reinstalling or assembling the product after repair. 3. Replacing Precautions Do not change or add parts as you like. You cannot benefit from such a remodeled product at your will during the term of guarantee. 4. You must replace overheated or damaged parts or cords with regular products. Please solve the problem causing any damage or overheating and troubles beforehand. LASER STATEMENT (LASERTURVALLISUUS) WARNING : NEVER OPERATE AND SERVICE THE PRINTER WITH THE PROTECTIVE COVER REMOVED FROM LASER/SCANNER ASSEMBLY. THE REFLECTIVE BEAM, ALTHOUGH INVISIBLE, CAN DAMAGE YOUR EYES. Class 1 laser product Luokan 1 laserlaite Klass 1 laser apparat Allonpituus 770-795nm Teho 0.3mW±0.03mW CAUTION INVISIBLE LASER RADIATION WHEN THIS COVER OPEN. DO NOT OPEN THIS COVER. VORSICHT UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEOFFNET. NIGHT DEM STRAHL AUSSETZEN. ATTENTION Especially mind the safety on the part with this mark. You must use regular parts described in specifications for the parts inflammable and where the current can be flown. Otherwise any hazard such as an electric shock or a fire could occur. REYONNEMENT LASER INVISIBLE EN CAS D’OUVERTURE. EXPOSITION DANGERUSE AU FAISCEAU. ATTENZIONE RADIAZIONE LASER INVISIBLE IN CASO DI APERTURA. EVITARE L’ESPOSIZONE LA FASCIO. PRECAUCION REDIACION LASER INVISIBLE CUANDO SE ABRE. EVITAR EXPONERSE AL RAYO. CAUTION : Avoid exposure to invisible laser radiation when the development unit is not installed. 1-2 Precautions on Disassembly and Reassembly Very careful precautions should be taken when replacing parts. Before replacing, please check cables because you cannot put the cables that you removed for replacing parts into the proper place if you would not make sure of where they were connected and in which condition. 7. When disassembling, assembling, also observe small components are located in place. 8. If you uncover and turn the machine over to replace some parts, toner or paper particles may contaminate the LSU window. Protect the LSU window with clean paper. Please do the following before disassembling for a repair or replacement of parts. 1. Pull out paper cassette, printer cartridge installed. Especially careful not to be scratched by the surface of developer or not to expose them to light. 2. Turn the power switch off. 3. Take out the power plug, printer cable from the printer. 4. Use only the same type of part as original when replacing parts. 5. Do not force to open or fasten plastic material components. 6. Be careful that small parts such as screws should not get in the printer. Samsung Electronics Releasing Plastic Latches Many of parts are held in place with plastic latches. The latches break easily : release them carefully. To remove such parts, press the hook end of the latch away from the part to which it is latched. 1-1 Precautions 1-3 ESD Precautions Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called “Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor “chip” components. The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commercially available wrist strap device, which should be removed for your personal safety reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface, such as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of the assembly. 4. Use only an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ESDs. 5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to damage ESDs. 6. Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil, or a comparable conductive material. 7. Immediately before removing the protective shorting material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed. 8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed, until completely plugged or soldered into the circuit. 9. Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electricity sufficient to damage an ESD. 3. Use only a grounded tip soldering iron to solder or desolder ESDs. 1-2 Samsung Electronics Precautions 1-4 Tools for Troubleshooting The following tools are recommended for safe and smooth troubleshooting described in this service manual. 1 DCU(Diagnostic Control Unit) Standard: Test equipment to diagnose the Laser printer supplied by Samsung Electronics. 4 Driver Standard: "-" type, "+" type (M3 long, M3 short, M2 long, M2 short). 5 Pinset Standard: For general home use, small type. 2 DVM(Digital Volt Meter) Standard: Indicates more than 3 digits. 6 Cotton Swab Standard: For general home use, for medical service. Equipments a IPA(Isopropyl 7 Cleaning Alcohol)dry cloth or a soft stuff neutral detergent. 3 Electronic Scale 8 Software(Driver) installation CD ROM Standard: Equipment to check the weight of consumables(toner cartridge) supplied by Samsung Electronics. (The gram unit can be measured.) Note Samsung Electronics Mind your hands not to be touched when you disassemble and reassemble PBA ASS'Y, such as the main board, SMPS, HVPS. 1-3 2.Specifications FAX SF-530 ITEMS General Size(W*D*H) 370 X 356 X 195 mm Weight Power Rating LCD Interface 6.9 Kg (With accessories) AC 110V ~ 120V ± 15%, 50/60Hz ± 3Hz AC 220V ~ 240V ± 15%, 50/60Hz ± 3Hz Temperature : 10 ~ 32˚C Humidity : 20 ~ 85% RH 16*1 Char 16*1 Char NA ECP(IEEE1284), USB Halftone 64 Level 64 Level Life 50000 Pages 50000 Pages Power Button Input Voltage No 110V~120V, 220V~240V No 110V~120V, 220V~240V Operating Environment Power Print Power Idle 10 W/H 10 W/H Consumption Max 140 W/H 140 W/H Power Save Mode OFF, 15, 30, 60 Min OFF, 15, 30, 60 Min Print Method Speed Laser 8ppm (FAX Print Out) Laser 8ppm (PC Print & Fax Print) NA 600 x 600 DPI Print language Toner Save No 30 ~ 50 % PrinThru 30 ~ 50 % Scan Method CIS CIS Quick Scan Speed 6 sec 3 sec Resolution 200 x 200 DPI 300 x 300 DPI Resolution Scan Copy MFP SF-531P Normal Scan Width Max Effective 216 mm 210 mm 216 mm 210 mm Scan Length Max 1000 mm 1000 mm (Std Mode : 365 mm) (Std Mode : 365 mm) Speed 8 ppm 8 ppm Resolution 600 x 600 DPI 600 x 600 DPI Zoom Range 50 ~ 130 % 50 ~ 200% Collate/Reverse Yes Yes Multi Copy 1 ~ 99 1 ~ 99 Samsung Electronics REMARKS 2-1 Specifications FAX SF-530 ITEMS Telephone Handset MFP SF-531P Yes Yes 1-Touch Dial 20 EA 20 EA Speed Dial 80 EA 80 EA Group Dial 20 EA 20 EA Caller ID Yes REMARKS (Germany, France, Canada, Australia, New Zealand, US) TAD No TAD I/F Yes Tone/Pulse Tone : US, UK, Korea Tone/Pulse : ETC No Power Operation FAX No Earth/Recall Yes External Phone Transfer Yes Compatibility ITU G3 Communication System PSTN/PABX Modem Speed 33.6Kbps Fax Modem TX Speed 3sec Using CCitt #1 Chart with Standard Resolution Compression MH/MR/MMRc Rcv. Mode TEL, FAX, AUTO, ANS/FAX ECM Yes DRPD Yes USA, New Zealand, Australia, SEMI only Resolution Memory Functions Battery B/U 2-2 Std 203*98dpi Fine 203*196dpi S.Fine 203*392dpi Capacity 2MB Optional Memory None Voice Request Yes TTI Yes RTI Yes Polling Yes Flash Yes Auto Reduction Yes Broadcasting 20 EA (99 locations) Forced Memory Yes Delay TX 20 Locations Memory RX Yes RDC Yes 20 EA(98 locations) 19 locations Yes (Max 20 Min) Samsung Electronics Specifications ITEMS Paper ASF Handling FAX SF-530 Type Input Capacity Optional Cassette Output Capacity Output Control Bypass Media Type BIN 150 Sheets / 20Ib No 100Sheets / 20Ib Face up No Plain Paper Media Size A4, Letter, Legal Media Weight Input Capacity Media Weight Software Compatibility DOS Win 3.x Win 95 Win 98 Win NT 4.0 Win 2000 Driver Printer TWAIN PC-FAX Media CD-ROM Diskette Y2K Compliant Including Software 16~24Ib 20 Sheets / 20Ib 12.5 ~32Ib No No No No No No No No No No No Yes No Special Direct E-mail Send Features Fax Forward Toner Save Reprint 2-up FAX Receive Scan to PC-FAX Toner Life Initial Cartridge Running Toner Sensor Support Method Lock Key (With Printer & OEM) Maintena ADF Rubber nce Cycle Paper Feeding Roller Transfer Roller Fuser Unit No Yes Yes No Yes No 1,000 Pages 2,500 Pages Yes Software Yes 10K Pages Scan 50K Pages Printer 60K Pages Print 50K Pages Print ADF Samsung Electronics MFP SF-531P Yes Plain, Coated, Transparency, Envelop, Card, Post Card, Label • Paper : A4, Letter, Legal, Folio, Executive, B5, A5 • Envelop : 6 3/4, 7 3/4, #9, #10, DL, C5, B5, Baronial 16~43Ib REMARKS Envelop : Manual feeding only Yes Yes Yes Provide After Launch Win 2000 Samsung PrinThru Samsung ScanThru (TWAIN) Samsung FaxThru Yes No Yes Print/Scan/Copy/Driver, PC-Fax/ E-mail/ OCR Software Yes Yes (Only Last PC Print) Yes Using 4% Coverage Pattern Using 4% Coverage Pattern Dot Counting 2-3 3. Disassembly and Reassembly 3-1 General Precautions on Disassembly When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected. Releasing Plastic Latches Many of the parts are held in place with plastic latches. The latches break easily; release them carefully. To remove such parts, press the hook end of the latch away from the part to which it is latched. Whenever servicing the machine, you must perform as follows: 1. Check to verify that documents are not stored in memory. 2. Be sure to remove the toner cartridge before you disassemble parts. 3. Unplug the power cord. 4. Use a flat and clean surface. 5. Replace only with authorized components. 6. Do not force plastic-material components. 7. Make sure all components are in their proper position. Samsung Electronics 3-1 Disassembly and Reassembly 3-2 Cradle 1. Push the lever and remove the cradle as shown below. 00000 00000 00000000000 0000 00000 000000 0000000000000 00000 000000 0000000000000 1. Open the OPE cover. A Note : Check the Roller for any dirt. If dirty, wipe it off with soft cloth dampened with water. If the Roller is heavily worn, replace it with a new one. Bushing B White Roller Control Panel 3-2 00000000000 00000 3-3 White Roller 2. Push the bushing on the end of the Roller slightly inward, then rotate it until it reaches the slot. Then lift, the Roller out. 00000 00000 00 1 00000000000 00000 2 00000000000 0000 00 3 Samsung Electronics Disassembly and Reassembly 3-4 OPE Cover 1. Pull the cover release button on both sides of the machine, and open the front cover. 4. Remove two screws securing bracket scan board, then take out the bracket scan board. 5. Unplug two connectors and one wire from the scan board. 2. Remove two stoppers holding the front cover unit and unplug one connector and one wire. 2 1 6. Lift the OPE cover. 2 1 3. Pull the bottom left end of the cover downward to unlatch the front cover unit and remove the cover from the main frame. Samsung Electronics 3-3 Disassembly and Reassembly 7. Remove the stopper holding the OPE cover. 2 1 8. Unlatch the bottom ends, then remove the OPE cover. 3-4 Samsung Electronics Disassembly and Reassembly 3-5 ADF Rubber 1. Open the OPE unit. 2. Insert a flat blade screw driver and pinset into the slot as shown below, and release the latches. Take out the Holder Rubber, Sheet ADF and the Rubber ADF. Guide Boss Holder Rubber Holder Rubber Rubber ADF Rubber ADF Guide Boss 0000000000000 0000000000 00000 000000 000 Notes : • When you reassemble the them, be sure that the Rubber ADF and Holder Rubber fit into the guide boss and the Holder Rubber latches fit into the corresponding hole. Then push firmly until it clicks. 00000 000000 Holder Rubber 000000 0000000 00000000 Rubber ADF 00000 000000 0000000000000 0000000000 00000 000000 000 000000 0000000 00000000 Safely Precautions : Do not force to open or fasten plastic material components. 3. Clean the surface of the rubber pad with IPA (Isopropyl Alcohol). After wiping it, be sure to dry it. Check the rubber wear. If the wear reaches 1/2 its original thickness, replace it with a new one. Pinset or Screw Driver Samsung Electronics 3-5 Disassembly and Reassembly 3-6 OPE Board 1. Before you remove the OPE board, you should remove: 3. Release two latches securing the both side of the LCD and the two of four latches securing the board. Then remove the OPE board. – OPE cover (see page 3-3) 2. Remove four screws securing the OPE board. 3-7 Lever Sensor Doc. 1. Unlatch the lever sensor Doc from the scan upper frame and take it out. 3-8 Lever Sensor Scan 1. Push the both sides of Lever sensor Scan inward, then unlatch and take out the sensor Scan from the scan upper frame. 3-6 Samsung Electronics Disassembly and Reassembly 3-9 Scan Board 1. Before you remove Scan board, you should remove: – Bracket scam board (see page 3-3) 2. Unplug all the connectors from the scan board and remove the board. 3-10 Scan Motor 1. Before you disassemble Scan Motor, you should remove: – OPE cover (see page 3-3) – Bracket scan board (see page 3-3) 4. Take out the gear from the Motor Ass’y. 5. Remove two screws and remove the motor. 2. Unplug one connector from the scan board. 3. Remove three screws, then remove the motor Ass’y from the main frame. Samsung Electronics 3-7 Disassembly and Reassembly 3-11 ADF Roller 1. Before you remove the ADF Roller, you should remove: 3. Remove ADF Roller from the scan front frame. – OPE cover (see page 3-3) ADF Roller 2. Remove two screws securing the guide paper and remove the guide paper. Guide Paper 3-12 CIS 1. Remove one screw and push CIS as shown below and lift it. 2. Separate the Dummy CIS from CIS. CIS tape 3-8 Samsung Electronics Disassembly and Reassembly 3-13 Rear Cover 1. Remove two screws. 2. Push the metal clip on the parallel port down and remove the rear cover from the main frame. 3-14 Top Cover 1. Before you remove the ADF Roller, you should remove: – OPE cover (see page 3-3) – Rear cover (see above) 3. Remove two screws and slide the left and right paper guides fully inward. Then spread the bottom of the top cover and lift the cover to remove. Paper guides 2. Remove two screws securing the top cover from the back side of the machine. Samsung Electronics 3-9 Disassembly and Reassembly 3-15 Tray 1. Before you remove the tray, you should remove: – OPE cover (see page 3-3) – Rear cover (see page 3-9) – Top cover (see page 3-9) 2. Take out the tray from the main frame. 3-16 LSU 1. Before you remove the LSU, you should remove: – All covers (see page 3-3, 3-9) 3. Unplug two connectors from the LSU and remove the LSU. 2. Remove three screws securing the LSU. 3-10 Samsung Electronics Disassembly and Reassembly 3-17 Transfer Roller 1. Pull the cover release button on both sides of the machine, and open the front cover. 2. Lift the transfer Roller using a proper tool (-Driver) and take out the Roller. 3-18 Engine Board 1. Before you remove the Engine board, you should remove: 2. Unplug five connectors and remove one screw from the engine board, then remove the board. – All covers (see page 3-3, 3-9) – LSU (see page 3-10) Samsung Electronics 3-11 Disassembly and Reassembly 3-19 Pick-up Roller Ass’y 1. Before you remove the pick-up Roller Ass’y, you should remove: 4. Remove two screws and remove the Roller from the plate. – All covers (see page 3-3, 3-9) – LSU (see page 3-10) 2. Unplug all the connectors from the engine board. Note : When you reassemble the pick-up Roller, make sure that the right end of the pick-up Roller fits into the pick-up gear shaft. 3. Remove four screws securing the plate upper and remove the plate upper as below. Pick-up gear shaft 3-12 Samsung Electronics Disassembly and Reassembly 3-20 Knock-up Ass’y 1. Before you remove the knock-up Ass’y, you should remove: 3. Remove the knock-up Ass’y from the main frame. – All covers (see page 3-3, 3-9) – LSU (see page 3-10) – Plate upper (see page 3-12) 2. Pull the knock-up Ass’y fully backward. 3-21 Cap-Pad 1. Before you remove the cap-pad, you should remove: 2. Take out the cap-pad from the main frame. – All covers (see page 3-3, 3-5) – LSU (see page 3-10) – Plate upper (see page 3-12) – Knock-up Ass’y (see above) Samsung Electronics 3-13 Disassembly and Reassembly 3-22 Holder-Pad 1. Before you remove the holder-pad, you should remove: – All covers (see page 3-3, 3-9) – LSU (see page 3-10) – Plate upper (see page 3-12) – Knock-up Ass’y (see 3-13) – Cap-Pad (see 3-13) 2. Remove the holder-pad from the main frame. 3-23 Motor Ass’y 1. Before you remove the motor Ass’y, you should remove: – All covers (see page 3-3, 3-9) Note : When you reassemble the motor Ass’y, make sure that the boss shown in the figure below fit into the corresponding screw holes on the motor Ass’y to allow the screws to be fastened properly. 2. Remove four screws securing the motor Ass’y and unplug one connector from the engine board, then remove the motor Ass’y. Boss 3-14 Samsung Electronics Disassembly and Reassembly 3-24 Fan 1. Before you remove the fan, you should remove: – All covers (see page 3-0) – Motor Ass’y (see page 3-15) 2. Unplug one connector from the engine board and remove the fan. 3-25 Gear pick-up Ass’y 1. Before you remove the gear pick-up Ass’y, you should remove: 2. Release two snap-fits and remove the gear pick-up Ass’y from the main frame. – All covers (see page 3-3, 3-9) Note: When reassembling, make sure that the direction of the gear is correct. Samsung Electronics 3-15 Disassembly and Reassembly 3-26 Solenoid 1. Before you remove the solenoid, you should remove: – All covers (see page 3-3, 3-9) 2. Unplug one connector from the engine board and remove one screw, then remove the solenoid. 3-27 HVPS Board 1. Before you remove the HVPS board, you should remove: – All covers (see page 3-3, 3-9) 2. Remove three screws and one connector from the HVPS board, then remove the board. Note : when reassembling, make sure that the terminal is five. 3-16 Samsung Electronics Disassembly and Reassembly 3-28 Hook Board 1. Before you remove the hook board, you should remove: – All covers (see page 3-3, 3-9) 2. Unplug one connector from the main board and remove two screws, then remove the hook board from the main frame. 3-29 Fuser Ass’y 1. Before you remove the fuser Ass’y, you should remove: 3. Remove two screws and unlatch the fuser Ass’y using a proper tool. – All covers (see page 3-3, 3-9) 2. Remove two wires after remove two screws from the main frame and one connector from the inter connector. Samsung Electronics 3-17 Disassembly and Reassembly 3-30 Thermostat 1. Remove one screw and remove the cover thermostat from the fuser Ass’y. 2. Remove two screws and take out thermostat from the fuser Ass’y. 3-31 Halogen Lamp 1. Before you remove the thermostat, you should remove: 3. Remove the halogen lamp from the heat Roller. – All covers (see page 3-3, 3-9) – Fuser Ass’y (see page 3-17) 2. On the fuser Ass’y, remove the two screws, then remove the heat Roller. 3-18 Samsung Electronics Disassembly and Reassembly 3-32 Pressure Roller 1. Before you remove the pressure Roller, you should remove: – All covers (see page 3-3, 3-9) – Fuser Ass’y (see page 3-17) 2. Lift and remove the pressure Roller from the main frame. 3-33 Actuator-Exit 1. Before you remove the actuator-exit, you should remove: – All covers (see page 3-3, 3-9) – Fuser Ass’y (see page 3-17) 2. Lift and remove the actuator-exit from the main frame. Samsung Electronics 3-19 Disassembly and Reassembly 3-34 Shield Engine Ass’y 1. Before you remove the shield engine Ass’y, you should remove: – Rear cover (see page 3-9) 2. Remove eight screws securing the shield engine Ass’y and remove the shield engine Ass’y from the main frame. 3-34 SMPS Board 1. Before you remove the SMPS board, you should remove: – Rear cover (see page 3-9) – Shield Engine Ass’y (see page 3-19) 2. Remove four screws and three connectors, then remove the SMPS board from the main frame. 3-20 Samsung Electronics Disassembly and Reassembly 3-36 Speaker 1. Before you remove the speaker, you should remove: – Rear cover (see page 3-9) – Shield Engine Ass’y (see page 3-19) – SMPS board (see above) 2. Remove one connector that connects the speaker to the main board and two screws securing the speaker, then remove the speaker. 3-37 LIU Board 1. Before you remove the LIU board, you should remove: – Rear cover (see page 3-9) – Shield Engine Ass’y (see page 3-19) 2. Remove three screws and three connectors from the LIU board, then remove the board from the main frame. Samsung Electronics 3-21 Disassembly and Reassembly 3-38 Main Board 1. Before you remove the main board, you should remove: – Rear cover (see page 3-9) – Shield Engine Ass’y (see page 3-19) 2. Remove four screws and all the connectors (9) from the main board, then remove the board. 3-39 Sensor Board 1. Before you remove the sensor board, you should remove: – Rear cover (see page 3-9) – Shield Engine Ass’y (see page 3-19) 2. Release four snap-fits securing the sensor board and unplug one connector from the main board, then remove the sensor board. 3-22 Samsung Electronics Disassembly and Reassembly 3-40 Actuator Empty/Feeder 1. Before you remove the actuator empty/feeder, you should remove: – Rear cover (see page 3-9) – Shield Engine Ass’y (see page 3-19) 3. Remove the Feed sensor and the Empty sensor. Feed Sensor 2. Remove one connector from the main board and two screws securing the holder feed Ass’y, then remove the holder feeder Ass’y. Empty Sensor Samsung Electronics 3-23 Disassembly and Reassembly 3-41 Roller Feeder 1. Before you remove the actuator empty/feeder, you should remove: 3. Rotate the pick-up bushing as shown below and remove holder feeder Ass’y and Roller feeder. – All covers (see page 3-0) – Motor Ass’y (see page 3-15) 2. Release two snap-fits and remove the gear-feed, clutch-feed, and the spring-clutch. Spring-clutch Gear-feed 4. Separate the Roller Feeder from the Holder Feeder Ass’y. Clutch-feed Roller Feed Holder Feed 3-24 Samsung Electronics 4. Troubleshooting 4-1 Preventative Maintenance The cycle period outlined below is a general guideline for maintenance. The example list is for an average usage of 50 transmitted and received documents per day. Environmental conditions and actual use will vary these factors. The cycle period given below is for reference only. COMPONENT SCANNER CLEANING CYCLE ADF Rubber 6 Months 10,000 Pages ADF Roller 1 Year 20,000 Pages White Roller As Needed 10,000 Pages CIS As Needed Cartridge PRINTER REPLACEMENT CYCLE SOLUTION 2,500 Pages Pickup Roller 60,000 Pages Feed Roller 50,000 Pages Transfer Roller 60,000 Pages Fuser 50,000 Pages 4-2 Tech Mode In Tech mode, the technician can perform various tests to isolate the causes of a malfunction, and set the technical option features to customize the machine depending on the user’s operation environment. To access TECH mode : Press SETUP, #, 1, 9, 3, 4 in sequence, and the LCD displays ‘TECH’ in the standby mode screen. While in TECH mode, the machine still performs all normal operations. To return to the normal user mode : Turn the power off, then back on. The technical options you have set in TECH mode are not changed unless you clear the machine’s memory in TECH mode. To communicate via direct connection with another fax machine, press OHD/V.REQ followed by Start/Enter. • Caution : When you finish operating in Tech Mode, you must turn the power Off/On. Samsung Electronics 4-1 Troubleshooting 4-2-1 System Data List in TECH MODE Function FAX NUMBER/NAME Item Content Default FAX NUMBER FAX NAME TIME/DATE SETUP TIME/DATE DATE FORMAT EUROPE/USA EUROPE SYSTEM SETUP LANGUAGE ENG/GER/FRE/ITA/SPA/POR/DUT ENGLISH SENDING MEMORY ON/OFF ON SEND FROM CONFIRM ON/OFF/ERROR ERROR FAX PAPER SIZE AUTO REDUCTION DISCARD SIZE RINGS TO ANSWER STAMP RCV.NAME RCV.START CODE ECM MODE CALLER ID JUNK FAX BARRIER DRPD MODE LETTER/A4/LEGAL ON/OFF 0~30mm 1~7 ON/OFF 0~9 ON/OFF ON/OFF ON/OFF ON/OFF A4 ON 20MM 2 OFF *9* ON OFF OFF OFF TECH MODE DIALING MODE SEND FAX LEVEL RCV. FAX LEVEL FLASH TIME(RECALL TIME) PAUSE TIME REDIAL INTERVAL REDIAL COUNT DP MAKE/BREAK SILENCE TIME RATE IGNORE TONER EMPTY MODEM SPEED TONE/PULSE 0~15 40~50 80/280/600 1~9 1~15 0~5 40/60~33/67 UNLIMITED/12SEC 5%/10% ON/OFF 2.4/4.8/7.2/9.6/12.0/14.4/28.8/33.6 TONE -12 DBM -43DBM 80 MS 4 SEC 3 MIN 2 33/67 UNLIMITED 10% OFF 26.4 KBPS GROUP DIAL SETUP GROUP NO[1-20] VOLUM SETUP ALARM VOLUM KEY VOLUM ON/OFF ON/OFF ON ON MEMORY CLEAR FAX NUMBER/NAME DIAL/SCHEDULE JOURNAL DEFAULT SETUP MAINTENANCE CLEANING DRUM ADJUST SHADING REMOTE TEST NOTIFY TONER LOW ROM TEST CIS TEST DRAM TEST SWITCH TEST DTMF TEST TONER COUNT PRINTING INFO PROGRAM DOWNLODE SCAN COUNT CLEAR ERROR OFF/ON OFF/ON ROM OK! (VERSION) DRAM OK OFF/ON COUNT CLEARING .. : Only Tech Mode 4-2 Samsung Electronics Troubleshooting 4-2-2 Tech Mode Options In TECH mode, press SETUP, then press or until ‘TECH MODE’ appears in the display. Press Start/Enter. The following technical options are available. Note : If necessary, print System Data List in TECH mode. The list shows all current system data settings including the TECH MODE options. To print the system data list, press Report/Help, then press or until ‘SYSTEM DATA’ appears in the display, and press Start/Enter. PAUSE TIME • Pause time mean delay time (unit: second) inserted between dial number signal and the next number of signal in the automatic dial (One touch, Speed dial, Redial) and the manual dial. • Caution: The Send Fax Level is set at the best condition in the shipment from factory. Never change settings arbitrarily. REDIAL INTERVAL Modem Speed • You can set the maximum modem speed. • Communication is done with modem speed automatically set at lower speed when communicating with the modem with lower speed since communication is done on the standard of the side where modem speed is low for transmission/reception. It is better set 26.4KBPS as default setting. DIALING MODE • Select the dialing mode according to the user's line status. • TONE: Electrical type of dial • PULSE: Mechanical type of dial • If the remote machine is busy when the machine sends a fax using automatic dialing, the machine automatically redials the number. Select the time interval between automatic redial attempts. Enter the desired redial interval using the number keypad: 1 - 15 minutes. REDIAL COUNT • You can set times that redial automatically attempts when automatic transmission is done or when the remote machine is busy or when the machine send a fax. If there is no response after redialing by the times already set, redial is no longer attempted. No redial is attempted if the settings is 0. Enter the desired times from 1 through 5. DP Make/Break SEND FAX LEVEL • Select the dial pulse make and break time: 40-60 or 33-67 • You can set the level of the transmission signal. Typically, the Tx level should be under -12 dBm. The level within the range of 1 to -15 dBm is acceptable. • Caution: Send Fax Level is set at the best condition in the shipment from factory. Never change settings arbitrarily. • Caution: The Send Fax Level is set at the best condition in the shipment from factory. Never change settings arbitrarily. RCV FAX LEVEL • You can set the level of the receiving signal. • The reception level may be too low due to the cable losses. • If it is set to -43 dBm, the reception sensitivity will be between 0 and -43 dBm. If it is set to -48 dBm, the reception sensitivity will be between 0 and -48 dBm. • Caution: The Send Fax Level is set at the best condition in the shipment from factory. Never change settings arbitrarily. SILENCE TIME • In ANS/FAX mode, after a call is picked up by the answering machine, the machine monitors the line. • If a period of silence is detected on the line at any time, the call will be treated as a fax message and the machine begins receiving. • Silence detection time is selectable between limited (about 12 seconds) and unlimited time. • When '2 sec' is selected, the machine switches to receiving mode as soon as it detects a period of silence. When 'unlimited'is selected, the machine waits until the answering operation is concluded even though a period of silence is detected. After the answering operation is concluded, the machine switches to receiving mode. ERROR RATE FLASH TIME • Set the flash time to 80, 280, or 600 milliseconds. • When the error rate is about to be over the setting value, the Baud rate automatically lowers up to 2400 bps to make the error rate remain below the setting value. • You can select the rate between 5% and 10%. IGNORE TONER EMP • You can set this function ON if desiring to drive the engine continuously even though the life of toner is run out and it becomes Toner Empty status. Samsung Electronics 4-3 Troubleshooting 4-2-3 Maintenance Options In TECH mode, press SETUP, then press or until ‘MAINTENANCE’ appears in the display. Press Start/Enter. The following technical options are available CLEAN DRUM • Use this feature to get rid of the toner remained in the development unit, so you can get a clean printout.Perform this feature if stains or specks appear on the printing materials and print quality falls. • Perform this feature several times until a clean printing material appears. NOTIFY TONER LOW • With this feature enabled, when the toner becomes low, the toner low information will be sent to ta specified contact point, for example, the service company. After you access this menu, select ON, and when the LCD prompts, enter the name and the number of the contact point, the customer's fax number, the model name, and the serial number. ROM TEST • Use this feature to test the machine'S ROM. The result and the software version appear in the LCD display. ADJUST SHADING • Use this feature to correct the white reference of the scanner if you experience bad copy images. When using this feature, a white paper should be used to get clean copy images. • Use this adjustment feature to achieve best image (scan) quality depending on the characteristics of the CIS (Contact Image Sensor) parts. 1. Select [ADJUST SHADING] from the Service Mode. 2. Insert a clean white original [Letter Size] into the paper loading part. 3. Original is scanned if pressing the Setting button. 4. If the original scan is completed, message is displayed on the LCD window and CIS SHADING PROFILE is output. • If the output image is different from the normal screen, the CIS is poor. Caution: 1. Always perform the CIS TEST after downloading Firmware. Otherwise, the system may not operate properly. 2. Always perform ADJUST SHADING after replacing the CIS. 3. Always use a clean white paper in ADJUST SHADING (Maximum paper width: Letter Size). 4. ADJUST SHADING may be performed even in the User Mode but ADJUST SHADING profile is output only in the TECH MODE. REMOTE TEST • The Remote Test feature can be enabled in order to allow a remote location to call up and run a diagnostic test on your machine. You may be instructed by a service representative to enable this feature. 4-4 CIS TEST • This test checks the operation of the Contact Image Sensor (CIS). Each time the number changes by one increment, the average ADC value of CIS prints out. DRAM TEST • Use this feature to test the machine's DRAM. The result appears in the LCD display. SWITCH TEST Use this feature to test all keys on the operation control panel. The result is displayed on the LCD window each time you press a key. MODEM TEST • Use this feature to hear various transmission signals to the telephone line from the modem and to check the modem. • If no transmission signal sound is heard, it means that the modem part of the main board is poor. DTMF TEST • DTMF (Dual Tone Multi Frequency) signal. When you press any key on the number keypad including • and #, you will hear the corresponding key tone. TONER COUNT •This feature shows the current state of the toner cartridge. •TONER CNT: The total number of the dots used to print up to current time. •CRU STATE: The page number which the toner cartridge can print. • Caution : After replacing Main board to new one, you should update the information to the new board. Samsung Electronics Troubleshooting PRINTING INFO Adjust Shading Sample Pattern • This feature allows the machine to automatically print various information, like toner count, transfer voltage, fusing temperature and so on, at the bottom of each printed page. • PAGE TONER CNT: prints the number of dots used to print the page. • TOTAL TONER CNT: prints the total number of the dots used to print up to current time. • THV ON DUTY: prints ADC value of transfer voltage. • THERMISTER: prints ADC value of fusing temperature. • P: prints the page number. PROGRAM DOWNLOAD • Use this feature to download a new upgraded ROM file from a PC that is connected to the machine with a parallel cable (IEEE 1284). SCAN COUNT CLEAR • If performing this feature, the value of scanning original until now is initialized (0). (Total scan count value on the system data list becomes 0.) Samsung Electronics 4-5 Troubleshooting 4-2-4 Printout Report In TECH mode, press Report/Help, then select the desired list or report by using or key, then press Start/Enter. The following options are available SCHEDULE INFORM • This list shows a specific information on the documents currently stored for delayed transmission. It provides the operation number, starting time, type of operation, etc. HELP • It shows a brief description on the machine's basic functions and commands.Use it as a quick reference guide SYSTEM DATA • This list provides a list of the user system data settings and tech mode settings. SENT JOURNAL • This journal shows a specific information concerning transmission activities, the time and dates of up to 40 of the most recent transmissions. PROTOCOL LIST RECEIVED JOURNAL • This list shows the sequence of the CCITT group 3 T.30 protocol during the most recent sending or receiving operation. Use this list to check for send and receive errors. If a communication error occurs while the machine is in TECH mode, the protocol list will print automatically. • This journal shows a specific information concerning reception activities, the time and dates of up to 40 of the most recent receptions. PATTERN PRINT • It lists all telephone numbers that have been stored in the machine. • Using this pattern printout, you can check if the printer mechanism is functioning properly. Examine the pattern and look for a break in the diagonal line. If the diagonal lines are not broken, the printer mechanism is functioning properly. SENDING CONFIRM SHADING PRIN • It shows the result of the last send operation. • With this print, you can check the scanning elements of the CIS (Contact Image Sensor). PHONEBOOK 4-2-5 Engine Test Mode The Engine test mode is used to check the operation of the components related to the printer engine. The following test are available. To access the Engine Test Mode: 1. Press Setup, #, 1, 9, 3, 1 in sequence. 2. When ‘ENGINE TEST?’ appears, press Start/Enter. 3. Scroll the options by pressing or repeatedly find the one you want. 4. Press Start/Enter to start the test. 5. Press Stop to exit the Engine test mode. • Caution : When you finish operating in Engine Test Mode, you must turn the power Off/On. Engine Test Mode Options : 1. 2 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. MAIN MOTOR TEST PTL TEST FAN TEST FUSER TEST ( FUSER ON : 145˚C , FUSER OFF : 145˚C ) LSU MOTOR TEST LD(LASER DIODE) TEST HSYNC TEST (NG/OK) LSU OPERATION TEST (NG/OK) SENSOR TEST ( FEED , EXIT , PAPER EMPTY , COVER OPEN) SOLENOID TEST MHV TEST ( -1550 V ) DEV TEST ( - 430 V ) THV(+) TEST ( +1300 V ) THV(-) TEST THV TRIGGER TEST ALL FUNCTION TEST : This function is for a manufacturing press . You can test all function(1~15) • When you push the “Start” button, the Main Motor runs. • If you push the “Start” button again , the current test stops, and the next test starts. 4-6 Samsung Electronics Troubleshooting 4-2-6 Maintenance List A number of reports can be printed from the fax machine within the test mode. The protocol list all contain detailed information which may be required when contacting technical support. To printout the protocol list : 1. Get into the Tech mode by pressing Setup, #, 1, 9, 3, 4. 2. In Tech mode, press Report/Help. 3. Press or repeatedly until you find the Protocol List. When you find ‘PROTOCOL LIST’, press ENTER. SAMPLE OF A PROTOCOL DUMP LIST Facsimile Information Field data described in hexdecmal code Sending/Receiving Name of signal (Facsimile Control Field) PROTOCOL DUMP LIST S/R S S S S S S R R S R R S R S S FCF FIF data described in ASCII code OCT-20-1999 06:35 FIF DATA ASCII NSF 61005820003380140200001302090018010000 CSI 2020202020202020202020202O20202020202020 DIS 00000000 01110111 00010111 00100010 NSF 61005020003380140200001302090018010000 CSI 202020202020202020202022O202020220202020 DIS 00000000 01110111 00010111 00100010 TSI 2020202020202020202020202O20202020202020 DCS 00000000 01100001 00010101 00000000 FTT TSI 2020202020202020202020202O20202020202020 DCS 00000000 01100001 00010101 00000000 CFR MPS MCF DCN < SAMPLE OF A PROTOCOL DUMP LIST > Samsung Electronics 4-7 Troubleshooting 4-3 Diagnostics This section describes methods and procedures to isolate the cause of a malfunction in the machine. This machine displays diagnostic information on the LCD. In addition, it can perform a series of tests that allow the machine to observe individual machine functions. 4-3-1 Error Messages Error Message Description Solution DOCUMENT JAM The loaded document has jammed in the feeder. Clear the document jam. DOOR OPEN The top cover is not securely latched. Press down on the cover until it clicks in place. FUSER ERROR There occurs a problem in the fuser unit. Unplug the power code and plug it back in. If the problem still persists, please call for service. JAM/NO CARTRIDGE Recording paper has jammed inside the unit, or the toner cartridge is not installed. Clear the jam, or install the cartridge LINE ERROR Your unit cannot connect with the remote machine, or has lost contact because of a problem on the phone line. Try again. If failure persists, wait an hour or so for the line to clear, then try again. Or, turn the ECM mode on. LOAD DOCUMENT You have attempted to set up a sending operation with no document loaded. Load a document and try again. LSU ERROR There occurs a problem in the LSU (Laser Scanning Unit). Unplug the power code and plug it back in. If the problem still persists, please call for service. The memory is full. Either delete unnecessary documents, or retransmit after more memory becomes available, or split the transmission into more than one operation. NO ANSWER The remote machine has not answered after all the redial attempts. Try again. Make sure the remote machine is operational. NO. NOT ASSIGNED The one-touch or speed dial location you tried to use has no number assigned to it. Dial the number manually with the keypad, or assign a number. MEMORY FULL 4-8 Samsung Electronics Troubleshooting Error Message Description Solution NO PAPER The recording paper has run out. Load the recording paper. OVER HEAT The printer part in your unit has overheated. Please wait until it cools down. If you cannot solve the problem, please call for service. PAPER JAM 0 Recording paper has jammed in the paper feeding area. Clear the jam. PAPER JAM 2 Jammed paper still remains inside the unit. Clear the jam, or install the cartridge POLLING ERROR The remote fax machine you want to poll is not ready to respond to your poll. Or When setting up to poll another fax machine, you have used an incorrect poll code. The remote operator should know in advance that you are polling and have their fax unit loaded with the original document. Enter the correct poll code. POWER FAILURE A power failure has occurred. If documents have been stored in the memory, a ‘Power Failure Report’ will be printed automatically when the power is restored. RECEIVE ERROR A fax has not been received successfully. A problem with the facsmile communications has occurred. Ask the sender to try again. RETRY REDIAL ? The machine is waiting for a specified time interval to redial a previously busy station. You can press Start to immediately redial, or Stop to cancel the redial operation. SEND ERROR Your fax has not gone through successfully. A problem with the facsmile communications has occurred. Try again. TONER EMPTY The toner cartridge has run out. The machine stops. Replace with a new toner cartridge. TONER LOW The toner is almost empty. Take out the toner cartridge and gently shake it. Using this way, you can temporarily re-establish the print quality. WARMING UP The printer is warming up and is off-line. Wait until the printer is on-line. Samsung Electronics 4-9 Troubleshooting 4-4 Print Quality No Roller Abnormal image period Kind of abnormal image 1 OPC Drum 75.4mm •White spot on black image •Black spot 2 Charge Roller 37.7mm Black spot 3 Supply Roller 26.8mm Horizontal density band 4 Develope Roller 31.6mm Horizontal density band 5 Transfer Roller 47.1mm Black side contamination/transfer fault 6 Heat Roller 50.1mm Black spot, White spot 7 Pressure Roller 50.2mm Black side contamination 4-5 Note for replacing Main board When you replace the main board to new one, the information on the toner state is cleared. Therefore, you should update the information to the new board by entering the exact value of total toner count and specifying the toner cartridge installed currently is shipped with the machine or new. If not, ‘TONER LOW/EMPTY’ message may not appear when the toner is run out. 1. In Tech mode, print ‘SYSTEM DATA LIST’. The list includes the total toner count and CRU state information. • TOTAL TONER COUNT: The total number of the dots used to print up to current time. • CRU STATE: The page number which the toner cartridge can print. (The yield of a new toner cartridge is approximately 2,500 pages and that of the cartridge supplied with the machine is approximately 1.000 pages.) 4-10 2. Replace Main board. 3. In Tech mode, 3-1) Press Setup, and find ‘MAINTENANCE’ by pressing repeatedly or , then press Start/Enter. 3-2) When ‘TONER COUNT’ is displayed in LCD, press Start/Enter, and enter the value of the total toner count in the system data list. 3-3) When you are prompted to enter CRU STATE, press Start/Enter. 3-4) When you see ‘[1.1000 2.2300]’ in LCD, select the value of the CRU state in the system data list. 4. In Tech mode, print ‘SYSTEM DATA LIST’ and make sure that the toner information is updated. Samsung Electronics Troubleshooting 4-6 Troubleshooting Flow Chart Vertical black line and band OK after replacing developer? YES Any obstacles on the developer blocking the laser beam. NO Replace the developer YES NO OK after removing the obstacles? NO YES END OK after replacing the LSU? NO Remove part on the paper path causing the trouble YES Any obstacles ON mirror lens of LSU and laser path? NO Replace the LSU YES Remove the obstacles. Samsung Electronics 4-11 Troubleshooting No Image No image? A on next page NO YES Self test pattern prints? YES Check connection to computer or replace controller NO Self testing is possible via Tech Mode? NO Re-test after replacing the conector or Main board YES Take out the cartridge and prepare the tester for electronic connection Is the OPC terminal of machine is well-connected to Frame? NO Repair or replace the GND terminal YES Does the video data line to LSU transit to High/Low when printing? NO Check the path between video controller, engine board and HVPS. Repair or replace the defective component or board YES The mirror in LSU might be misplaced so the light path to the OPC deviates ->Repair or replace LSU or remove any deffective matters in the machine 4-12 Samsung Electronics Troubleshooting A Is the connection of OPC GND and Frame Ground correct? (less than 10 ‰) Check the connection of frame Ground and OPC GND YES Trnasfer voltage OK? (on the transfer roller shaft) NO YES Are the connection terminal and connection correct? NO Repair or replace terminal YES Replace HVPS or repair defective component Developing (-350V) and supplying (-550V) voltage are OK? NO Is the connection terminal OK? NO Repair or replace terminal YES YES Replace HVPS or repair defective component Does the counter indicate over the toner’s guarranty life NO Transfer roller might be out of its location -> Locate the roller into its place This could occurrs when he power of LSU is low or the density is low due to the obstacles on the window -> Replace LSU or clean the window YES Replace the toner cartridge Samsung Electronics 4-13 Troubleshooting Light image Is it not over the guaranty life of dot counter? NO Replace the developer YES Is the toner save mode or the light mode is selected? YES Ok after setting to the normal mode? NO Is the high voltage normal? (charging, developing, transfer) YES END NO NO Replace the HVPS YES YES NO Any obstacles on the gab between high voltage terminal and developer? YES YES HVPS works OK? Remove the obstacles NO Transfer roller works OK? NO Clean transfer roller and gear holder YES OK after replacing LSU? YES Replace the LSU NO Replace the developer 4-14 Samsung Electronics Troubleshooting All Black All black in printing area? NO YES Does the video data line to LSU transit to High/Low when printing? NO Check the path among video controller, engine board, HVPS, LSU for the shortage or open -> Repair or replace the boards YES Replace LSU Is transfer voltage supplied (-1.55 KV)? NO Repair or replace HVPS YES Is the Hsync/ signal received in LSU? NO Replace LSU YES Transfer part’s contact is bad -> Repair or replace toner cartridge Samsung Electronics 4-15 Troubleshooting Vertical White Line (Band) White line missing definitely? NO Check if the printout is still has the same problem even right after passed through the transfer roller YES YES NO The ribs in fuser or toner on the roller may invoke the image problem -> Replace the fuser cover or the defective part Dirt of dust stuck onto the window of internal lens of LSU -> Clean it or replace LSU The image is originally black or the black part is far close to the top -> Use the pattern which has the image below bigger than 10mm from the top Preventive obstacles through the path between OPC of developer and LSU prevent the path -> Remove the obstacles Does the problem persist? NO END YES Toner material might be stuck to blade in the developer inside and it prevents toner supply -> Replace the toner cartridge Check both if the toner cartridge’s counter is over its guaranty and amount of the toner material -> Replace the toner cartridge 4-16 Samsung Electronics Troubleshooting Dark Image NO Dark selected via RCP? YES Change to Normal and test NO Same at Normal? END YES Works cor with -350V of Bias voltage? NO Repair or replace the defective component YES Works correctly after replaced LSU? NO Toner over supply due to the adjustment fault of metering blade in developer -> Replace developer YES The power of LSU is set high or internal problem -> Replace LSU or adjust voluem Samsung Electronics 4-17 Troubleshooting Background Recommended paper used? NO Print 20 to 30 pages using the recommended paper YES Replace transfer roller’s holder NO Is pressure of transfer roller too high? Does the operation of TR work properly? YES NO Same problem occurs? END YES Transfer, charge and developing voltage are OK? - Adjust voltage or replace HVPS NO - Repair or replace after checking the terminals’ contacts YES Operating/ storage atmosphere is too high temperature /humidity? YES Solve the problem under the recommended condition (10-32 degree Centigrade) NO Dirt or dust around the charge roller? NO Replace the toner cartridge YES Clean the charge roller or replace step-up device /terminal after check Check Terminals or contacts and ’Guide-Deve Spring’ are misplaced -> Repair or replace transfer roller etc. NO Work OK? YES Internal blade or suppying part of the developer is defective -> Replace the toner cartridge 4-18 Samsung Electronics Troubleshooting Ghost Clean transfer roller’s holder and TR drive gearor replace TR holder ass’y NO Is it regular interval of 75.4mm? NO Is it regular interval of 31.6mm? NO NO YES YES Is it regular interval of 47mm? (as transfer roller interval) Is it regular interval of 50.4 mm? NO Developing /suppying voltage normal? (-350V/ -550V) Transfer voltage is set to standard? Check HVPS contacts and HVPS’s self-output -> If failed, repair/ replace HVPS Irregularity of NIP between rollers in developer -> Replace developer Does the operation of TR work properly? YES Clean TR drive and OPC gear NO YES YES YES YES Clean heat roller or replace it - Repair or replace HVPS - Check and Repair or replace the terminal contacts Does the same problem persist? YES NO END A specific part of the transfer roller has ruined or its resistance value is changed -> Replace transfer roller Bias voltage is OK? (-350V) NO Adjust the Bias voltage or replace HVPS Transfer roller cannot force regularly due to the gears eccentricity of transfer roller -> Replace the defective component YES Operating/storage temperature is too low or not recommended paper used? NO There may be a problem in toner layer control in toner cartridge -> Replace the developer YES Use the machine with recommended paper and at condition Samsung Electronics 4-19 Troubleshooting Black Spot Is it regular interval of 37.7mm? NO YES Is it regular YES interval of 75.4 mm? NO Perform the OPC cleaning using the control panel buttons. When taking out the cartridge, toner leaks? YES Toner leaks and toner material dropped onto the paper -> Replace the developer Does the same problesm persist? Remove obstacles stuck on OPC drum’s surface YES NO Bad image removes by scratching? NO YES The problem randomly occured due to the toner fallen -> Clean the machine Check toner is stuck onto the P/R or H/R in fuser -> Clean it or replace The problem occured since the obstacles stuck to charge roller -> Replace toner cartridge NO END 4-20 Samsung Electronics Troubleshooting Horizontal Band Black band? NO Black band is far about 10mm from white band? NO YES The OPC is damaged under the direct sunlight for around 5 minutes -> If the same problem persists in 10 hours, replace the developer Problem of internal contacts in OPC -> Replace developer The black band has regular interval? NO This occurs when no Hsync/ at LSU -> Replace LSU YES 75.4 mm interval? NO YES The OPC is damaged due to the irregular transfer voltage of HVPS -> Repair/replace HVPS -> If the same problem persists, replace the developer Samsung Electronics Does it appear at every 56.1mm at specific place? YES NO Problems of terminal contact, transfer voltage supplying, and transfer roller’s due to the charge roller is ruined (37.7mm) -> Repair/replace HVPS, developer Heat roller is ruined -> Replace the roller 4-21 Troubleshooting Toner Contaminations on Back of Paper Transfer roller is clear ? NO Clean the transfer roller YES Paper path is clear ? NO Clean the paper path YES Clean the pressure roller 4-22 Samsung Electronics Troubleshooting Partial Blank Image (not Periodic) Is it not over the guaranty life of dot counter? NO Replace the toner cartridge YES Is toner cartridge installed correctly? NO Install the toner cartridge correctly YES Transfer roller works properly? NO Clean the TR holder, the TR gear, OPC roller gear and the transfer roller YES - Clean the contact point of transfer roller - Check the output of high voltage terminal and adjust or replace if required Samsung Electronics 4-23 Troubleshooting Partial Blank Image (Periodic) Is it not over the guaranty life of dot counter? NO Replace the toner cartridge YES Is toner cartridge installed correctly? NO Install the toner cartridge correctly YES Is it regular interval of 47.1mm? YES Transfer roller works properly? NO Clean the TR holder, the TR gear OPC roller gear and the transfer roller YES END YES NO OK after replacing the transfer roller? NO - Clean the contact point of transfer roller. - Check the output of high voltage terminal and adjust or replace if required. Is it regular interval of 75.4mm, 31.6mm or 37.7mm? YES Replace the toner cartidge NO Replace the fuser (50.2mm, 45.2mm or exit roller 4-24 Samsung Electronics Troubleshooting Irregular Density OK after taking out and rocking the toner cartridge? YES NO When gray pattern printing, irregular density persists? NO YES transfer/ charge/developing voltage drops while printing? YES It is over the guaranty life of toner cartridge (Check the counter and replace it) NO Defective agitator in the toner supplying part of developer ->Replace the developer Check if the ’guide deve spring’ works OK and repair/repalce Check high voltage output and repair/ replace terminals, HVPS Bad images aroung the no image area? NO Irregualrity of toner suppy from developer -> Repalce developer YES Light distortion due to the mirror ruined or LSU’s diffused reflection -> Replace LSU Samsung Electronics 4-25 Troubleshooting White Spot Is it regular interval of 75.4mm? YES Obstacles stuck on OPC’s surface -> Clean the OPC and machine or replace developer NO Transfer voltage is normal? NO Too high voltage supplied due to the setting error of transfer voltage -> Adjust/replace HVPS YES D/R in developing unit has the defect -> Replace the developer When putting in/out the developer, scratch is made -> Replace the developer 4-26 Samsung Electronics Troubleshooting Trembling at the End When OHP Printing Is the OPC mode selected using the software application? NO Set to OHP mode YES Recommended OHP film used? NO Use the recommended film YES Inserted over than 10 films into the MPF? YES When multi-page OHP printng, less than 10 films are guranteed. Samsung Electronics NO When OHP printing, does the fan temporarily stops and revolves? NO Use the recommended film YES Other parts are touching the fan and prevents it from revolution -> Check and repair 4-27 Troubleshooting Poor Fusing Grade After printing NO completed, any error related fuser? YES Both ends of thermostat open? The machine placed under the severe low tempera ture for a long time? YES NO NO While printing, the voltage of pin 208 of U5 (CPU) on Main board is 2.0V ~2.3V? NO Thermistor’s contact is OK? NO YES YES Re-assemble thermistor Place the machine at normal temperature and re-test YES Replace thermostat and re-test Open the top cover. When black printing, is the fuser NIP width is 1.2~ 3.0mm? NO Check if the hardness of P/R, and spring force is OK? (spring’s force: 2.5 Kg) YES Replace the contol component on engine board Check any contact problem in thermistor and repair 4-28 The paper used is too thick or contains too much cotton in it -> Re-test with the recommended paper Samsung Electronics Troubleshooting No Power (LCD NO display LED Off) Plug in the power cord? NO Check the voltage first and plug the power cord YES The power NO voltage supplying is the same as rating? Supply the power as the rating YES The fan revolves when powered on? Connections NO on board are OK? NO YES YES LEDs blink once when powered on? NO Fuse of SMPS if open? The On-Line key is being pressed NO or shortage on the panel board? Repair/replace the board Samsung Electronics NO Replace the fuse YES YES YES Re-connect firmly and re-test The connection error between controller board and panel board or malfunction of boards. -> Replace the boards Shortage between 5V and GND, or between 24V and GND? YES Remove the shortage or replace the board NO Toner cartridge is in the set? NO Put in the cartridge YES Detect failure due to the board which detects top cover open or switch error -> Replace the board or switch 4-29 Troubleshooting Fuser Error Measure the resistance at the both ends of AC Line with covers open NO Less than 10W? Thermostat is open due to the heat etc. -> Replace the thermostat YES Remove the covers AC is being supplied? NO Re-assemble the top cover and close it Check the PCI and fusing control part and CN502 on the SMPS -> Replace the component or replace the SMPS YES The voltage of pin #208 of U5 (CPU) on the Main board is about 2.3V when printing? NO Thermistor, connecting point or engine board defect -> Repair/replace the component/board YES END 4-30 Samsung Electronics Troubleshooting Paper Jam (Mis-feeding) Sounds the solenoid on when starts print? NO The solenoid defected -> Replace it YES Does the paper move? The Engine board defected -> Replace boards NO The pick-up unit is assembled wrong -> Re-assemble or replace the unit YES Does the paper move more than NO 100mm? Too many papers in the feeder? YES Feeder sensor and paper width detect sensor are assembled reverse? YES NO The Sensor board defected -> Repair/replace Reduce the amount and re-test YES Switch them Paper guides fit the paper width? NO Take out the paper and re-insert YES Paper end curled? YES Use the recommended and quality paper Samsung Electronics NO Does the extender pulled out? NO Pull out the extender YESUse the MPF for the thick paper such as envelope and cardstock 4-31 Troubleshooting Paper Jam (Jam1) Paper NO stopped before the OPC? Paper NO stopped before the fuser? YES YES The actuator of NO paper exit sensor works OK? Check the actuator exists and its operation and around the engine board -> Replace YES Check the LSU and if it has the defect replace it Is the paper rolled around the presseure roller? Feeds NO multiple pages? NO YES YES Remove the fuser, remove the paper and replace the pressure roller, if necessary Severe skew when feeding? NO YES Adjust the paper guides to fit the paper width The force of springs pressing the developer is weak -> Check guide-DEVE Check the roller and ribs of fuser are in place, and remove burrs, if any -> Remove the factors of jam Remove any factors The paper came out through between fuser and developer? NO Check the input path to the fuser (such as mis-assembly) YES Too thin or sensitive paper to static electricity? NO Check guide transfer is grounded Check the shutter prevents feeding YES Use the recommended paper 4-32 Samsung Electronics Troubleshooting LSU Error Check CBF Harness28P (MAIN B’D to ENGINE B’D) NO Try again to connector or Replace connector YES Check MAIN B’D CN9-3, P_MOTOR Signal ( ) NO Replace MAIN B’D YES Check MAIN B’D CN9-4, LREDADY Signal ( ) NO Replace LSU YES Check MAIN B’D CN9-9, LDON Signal ( ) NO Replace MAIN B’D YES Check MAIN B’D CN9-6, HSYNC Signal ( ) NO Replace LSU YES END Samsung Electronics 4-33 5. Exploded Views and Parts List 5-1 Main Assembly 5-2 Shield Engine Unit Assembly 5-3 Engine Assembly 5-4 Frame Lower Assembly 5-5 Fuser Assembly 5-6 Plate-Upper Unit Assembly 5-7 OPE Unit 5-8 Scan Upper Assembly 5-9 Front Assembly 5-10 RX Drive Unit Assembly Samsung Electronics 5-1 Exploded Views and Parts List 5-1 Main Assembly 0 18-2 18 16-2 16-1 16 8 15 18-1 6 14 5 14-1 14-2 2 19-2 19 3 19-1 4 10 &12 9 13 7 11 17 17-2 1 17-1 5-2 Samsung Electronics Exploded Views and Parts List Main Assembly Parts List O : Service available X : Service not available No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14-1 14-2 15 16 16-1 16-2 17 17-1 17-2 18 18-1 18-2 19 19-1 19-2 Description SF-530 / 531P SMPS-V1 SMPS-V2(4CH) UNIT-LSU IPR-PLATE_CHANNEL MEC-PLATE UPPER MEC-TRAY MEC-TRAY(P) MEC-CRADLE PBA MAIN-LIU PBA ELA HOU-HANDSET ELA-UNIT DEV APO6 E ELA HOU-ENGINE ASS’Y ELA HOU-SHIELD ENGINE ELA HOU-SHIELD ENGINE ELA HOU-FRAME LOWER ELA HOU-FRAME LOWER ELA HOU-RX DRIVE MEA HOU-OPE FRONT MEA HOU-OPE FRONT PBA MAIN-SCAN PMO-BASHING WHITE PMO-COVER TOP MEC-COVER REAR PMO-COVER_REAR PMO-TRAY_LARGE MEC-STCKER PMO-STACKER_MAIN PMO-STACKER_SUB MEA UNIT-CHUTE ASS’Y PMO-CHUTE PMO-DUMMY CHUTE MEC-STACKER PMO-STACKER TX(APOLLO) PMO-STACKER TX(B) Samsung Electronics SEC.Code Q’ty SA Remark JC44-00032A JC44-00023A JC59-00006A JC70-00058A JC75-00057A JC75-00062A JC75-00075A JC75-00083A JC92-01379A JC96-01629B * * * * JC96-02094B JC96-02094A JC96-01755A JC97-01463L TBD JC81-00441A JF72-41306A JC72-00128A JC75-00059A * * JC75-00060A * * JC97-01187E * * JC75-00084A JC72-00223A * 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 O O O O O O O O O O X X X X O O O O O O O O O X X O X X O X X O O X 110V 220V SF-530 SF-531P SF-530 SF-531P 110V 220V SF-530 SF-531P 5-3 Exploded Views and Parts List 5-2 Shield Engine Unit Assembly 0 S-9 3 2 S-9 4 10 S-9 S-9 1 11 LIU B’d 5 S2 6 S8 8 S2 12 7 9 9 5-4 Samsung Electronics Exploded Views and Parts List Shield Engine Unit Assembly Parts List O : Service available X : Service not available No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 S2 S8 S9 Description SEC.Code Q’ty SA ELA HOU-SHIELD ENGINE ELA HOU-SHIELD ENGINE CABLE-FLAT CBF HARNESS-LSU CBF HARNESS-MAIN-HVPS CBF HARNESS-LIU/HOOK 2 CBF HARNESS-MODULA 2 CBF HARNESS IPR-SHIELD ENGINE IPR-SHILED SMPS MEC-GUIDE STAKE ASS’Y PBA MAIN-MAIN PBA MAIN-MAIN ELA M/MEDIO AUD-SPEAKER WASHER-E.T CBF HARNESS-THERMISTOR SCREW-MACHINE SCREW-TAPTITE SCREW-TAPTITE * * 3809-001161 JC39-00043A JC39-00193A JC39-00174A JC39-00175A JC39-40022A JC70-00200A JC70-00263A JC75-00087A JC92-01308B JC92-01308D JC96-01607A * JC39-00045A 6001-000568 6003-000221 6003-000264 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 11 X X O O O O O O O O O O O O X O O O O Samsung Electronics Remark SF-530 SF-531P INLET SF-530 SF-531P 5-5 Exploded Views and Parts List 5-3 Engine Assembly 0 S-1 9 15 14 1 1-2 13-1 1-1 13-2 S-1 21 13 5 S-1 8 21-1 S-1 12 S-10 21-3 20 18 21-2 S-6 19 S-1 17-2 17 17-3 17-4 17-1 7 3 S-1 22-3 22-1 22-2 Frame Lawer Ass’y 16 6 22 11 10 Bushing-Shaft 5-6 Samsung Electronics Exploded Views and Parts List Engine Assembly Parts List O : Service available X : Service not available No. 0 1 1-1 1-2 2 3 5 6 7 8 9 10 11 12 13 13-1 13-2 14 15 16 17 17-1 17-2 17-3 17-4 18 19 20 21 21-1 21-2 21-3 22 22-1 22-2 22-3 S7 S10 S11 Description ELA HOU-ENGINE ASS’Y MEC-CAM PICK UP PMO-CAM_PICKUP PMO-SHAFT_PICKUP CBF HARNESS-EARTH (TX MOTOR) SOLENOID-(APOLLO) SMPS-HVPS SPRING-CLUTCH SPRING-KNOCK UP PBA MAIN-HOOK 2 PBA MAIN-ENGINE PMO-GEAR_FEED PMO-CLUTCH_FEED PMO-CAP_PAD MEA RACK-TR ASS’Y PPR-SPACER DR MEC-TRANSFER ROLLER PMO-GEAR_TRANSFER PCT-INSULATOR ENG BD PMO-DUMMY SIDE MEC-HOLDER PAD SPRING-PAD PMO-HOLDER PAD PMO-HOLDER PAD LARGE RPR-PAD FRICTION MEC-TERMINAL MEC-SIDE PAD(L) MEC-SIDE PAD(R) MEC-KNOCKUP ASS’Y IPR-BAR_KNOCKUP PMO-PLATE-KNOCKUP PMO-CAM-KNOCKUP MEC-GEAR PICK UP SPRING-PICK UP GEAR PMO-GEAR_PICKUP,1 PMO-GEAR_PICKUP,2 SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics SEC.Code Q’ty SA * JC75-00072A * * JB39-00017A JC33-00002A JC44-00017A JC61-00012A JC61-00023A JC92-01378A JC92-01320A JC72-00115A JC72-00116A JC72-00124A * * JC75-00035A JC72-00179A * * JC75-00156A JC61-00054A JC72-00535A JC72-00536A * JC75-00049A JC75-00050B JC75-00051B JC75-00053A * * * JC75-00056A * * * 6003-000196 6003-000266 6003-000119 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 5 1 1 1 1 1 1 1 1 1 1 7 2 17 X O X X O O O O O O O O O O X X O O X X O O O O X O O O O X X X O X X X O O O Remark 5-7 Exploded Views and Parts List 5-4 Frame Lower Assembly 29 29-4 29-1 0 Transfer Roller 29-3 29-2 S-1 1 30-3 30-1 12 30 30-2 S-1 7 23 24 21 4 4 35 9 S-1 S-6 34-1 34-2 34 S-1 S-6 S-1 16 14 8 S-1 20 1 31 5 3 18 S-2 19 37 36 S-2 11 5 6 3 15 13 33 18 10 43 41 26 S-1 25 17 2 38 26 39 40 27-1 42 27-2 27 25 28-3 28-4 28-3 28-5 28-1 28 28-2 S-2 S-2 32 5-8 Samsung Electronics Exploded Views and Parts List Frame Lower Assembly Parts List O : Service available X : Service not available No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 27-1 27-2 28 28-1 28-2 28-3 28-4 28-5 29 29-1 29-2 29-3 29-4 30 30-1 30-2 30-3 31 32 33 34 34-1 34-2 35 36 37 38 39 40 41 42 43 S6 S7 S11 Description ELA HOU-FRAME LOWER ELA HOU-FRAME LOWER CBF HARNESS-OPE GND CBF HARNESS-FUSER SPRING-P/R (APOLLO) SPRING-GUIDE DEVE BEARING-PRESSURE R IPR-SAW_PLATE IPR-EARTH_TRANS IPR-GROUND_GUIDE IPR-GROUND_HVPS IPR-GROUND_FUSER IPR-GUIDE-TR IPR-PLATE-TERMINAL IPR-GROUND DRIVE PMO-BUSHING_TERMINAL PMO-ACTUATOR_EXIT PMO-GUIDE_INPUT PCT-FILM SAW PMO-HOLDER PR PMO-HOLDER EXIT PMO-FRAME LOWER PMO-COVER PTL PMO-CAP PLTE G/DEV R PMO-CAP PLTE G/DEV L PMO-STOPPER EXIT RMO-RUBBER_FOOT MEC-ROLLER FEED RPR-ROLLER FEED MEC-SHAFT FEED MEC-HOLDER FEED SPRING-ACT, FEED PMO-HOLDER_FEED PMO-BUSHING_FEED PMO-ACTUATOR_EMPTY PMO-ACTUATOR_FEED MEC-HOLDER TR L SPRING-TR(300) IPR-PLATE_TR PMO-HOLDER TR PMO-BUSHING_TR(L) MEC-HOLDER TR R SPRING-TR(300) PMO-HOLDER TR PMO-BUSHING_TR(R) MEC-ROLLER_PR 1210 PBA MAIN-SENSOR ELA HOU-MOTOR GND ELA HOU-OPEN SENSOR CBF HARNESS-COVER IPR-BRKT-SENSOR ELA HOU-PTL ASS’Y ELA HOU-FUSER 110V ELA HOU-FUSER 220V(531P) PMO-BUSHING SHAFT GEAR-FU_IN 47 PMO-HUB GEAR GEAR-FU_OUT 47 PMO-GEAR_83/35 IPR-BRACKET FUSER DRV FAN-DC SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics SEC.Code JC96-02094B JC96-02094A * JC39-00061A * * * * * * * * * * * * JC72-00130A * * JC72-00531A JC72-00532A JC72-00533A JC72-00534A JC72-41135A JC72-41173A * * JC75-00054A * * JC75-00055A * * * * JC72-00119A JC75-00106C * * JC72-00100C JC72-00102A JC75-00107C * JC72-00100C JC72-00101A JC75-00130A JC92-01197A JC96-01579A JC96-01584A JC39-00041A * JC96-02312A JC81-00439A JC81-00440A JG72-40849A JC66-00306A JC72-00676A * JC72-00154A * 3103-001085 6003-000152 6003-000196 6003-000119 Q’ty 1 1 1 1 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 2 2 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 17 SA O O X O X X X X X X X X X X X X O X X O O O O O O X X O X X O X X X X O O X X O O O X O O O O O O O X O O O O O O X O X O O O O Remark 110V 220V 110V 220V 5-9 Exploded Views and Parts List 5-5 Fuser Assembly 0 S 7 S 13 2 9 12 20 16 11 15 14-2 4 18 17 10 14-1 S 14 5 3 8 S S 1 21 22 5-10 19 6 Samsung Electronics Exploded Views and Parts List Fuser Assembly Parts List O : Service available X : Service not available No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14-1 14-2 15 16 17 18 19 20 21 22 S S Description SEC.Code Q’ty SA Remark ELA HOU-FUSER 110V ELA HOU-FUSER 220V(531P) THERMISTOR-NTC THERMOSTAT LAMP-HALOGEN LAMP-HALOGEN PMO-FUSER_UPPER PMO-BUSHING H/R L PMO-BUSHING H/R R PMO-COVER_THERMOSTAT NPR-ROLLER HEAT IPR-ELECTRODE_PLATE IPR-GROUND_FU IPR-PIN ROLLER EXIT IPR-ELECTRODE WIRE1 IPR-ELECTRODE WIRE,S MEA ETC-SHAFT EXIT PMO-SHAFT_EXIT(Z15) RMO-RUBBER_EXIT PMO-ROLLER_IDLE EXIT SPRING-EXIT PMO-GEAR_EXIT_DRV16 PMO-GEAR_EXIT_IDLE GEAR-FUSER 1210 LABEL(R)-CAU_HOT_FU SPRING-CLAW PMO-GUIDE CLAW SCREW-TAPTITE SCREW-TAPTITE JC81-00439A JC81-00440A 1404-001188 4712-000001 4713-001120 4713-001121 * JC72-00530A JC72-00529A * JC71-00012B * * * * * * JC72-00150A * JC72-00567A JC61-00017A * * JC66-00037B * * * 6003-000119 6003-000196 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 4 4 4 1 1 1 1 5 5 5 1 O O O O O O X O O X O X X X X X X O X O O X X O X X X O O 110V 220V Samsung Electronics 110V 220V 5-11 Exploded Views and Parts List 5-6 Plate-Upper Unit Assembly 0 7 S 3 S S 1 6 6-1 S 6-2 4 6-3 4-2 4-3 4-1 6 4-2 2 6-1 2 S-1 6-2 8 5-12 6-3 Samsung Electronics Exploded Views and Parts List Plate-Upper Unit Assembly Parts List O : Service available X : Service not available No. 0 1 2 3 4 4-1 4-2 4-3 6 6-1 6-2 6-3 7 8 S5 S10 S10 Description MEC-PLATE UPPER IPR-UPPER-PLATE IPR-PLATE SPRING DEV ELA UNIT-FUSE DEVE MEA ETC-ROLLER PICK UP PMO-HOUSING_PICKUP RMO-ROLLER_PICKUP PMO-IDLE_PICKUP MEA ETC-IDLE FEED PMO-HOLDER_PICKUP SPRING-FEED PMO-HOLDER_IDLE,FEED CABLE CLAMP ICT-ROLLER IDEL FEED SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics SEC.Code Q’ty SA JC75-00057A * JC70-10223A * * JC72-00109A * * * * * * 6502-000130 * * 6003-000266 6003-000266 1 1 2 1 1 1 1 2 2 1 1 1 1 1 2 1 2 O X O X X O X X X X X X O X X O O Remark 5-13 Exploded Views and Parts List 5-7 OPE Unit 0 2 5 12 9 11 10 14 6 7 13 8 3 4 16 15 1 17 OPE Unit Parts List O : Service available X : Service not available No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 5-14 Description ELA HOU-OPE ASS’Y ELA HOU-OPE ASS’Y SCREW-TAPTITE MPR-COVER ADRESS PMO-KEY COPY PMO-KET STOP LABEL(P)-ONE TOUCH PMO-KEY OT PMO-KEY FUNCTION PMO-KEY START PMO-OPE COVER PMO-OPE COVER PMO-KEY TEL PMO-KEY SAVE PCT-LCD WINDOW PMO-KEY FOWARD PMO-KEY MODE(B) RMO-TEL RMO-ONE TOUCH PBA MAIN-OPE SEC.Code Q’ty SA JC81-00442A JC81-00468A 6003-000119 JG74-10543A JB72-00102A JB72-00108A * JC72-00275A * * JC72-00665L TBD JC72-00667A JC72-00668A JC72-00672A JC72-00886A JC72-41320A JC73-00072A JC73-00073A JC81-00456A 1 1 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 O O O O O O X O X X O O O O O O O O O O Remark SF-530 SF-531P SF-530 SF-531P Samsung Electronics Exploded Views and Parts List 5-8 Scan Upper Assembly 0 10 12 8 S 9 4 1 6 5 2 13 7 S 15 S 3 14 11 Scan Upper Assembly Parts List O : Service available X : Service not available No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Description ELA HOU-SCAN UPPER MEC-PINCH RPR-SPONGE ADF MPR-TAPE ADF CBF HARNESS-SCAN GND SPRING-SENSOR SPRING-COIL ADF PMO-SCAN UPPER PMO-LEVER SENSOR DOC PMO-LEVER SENSOR ICT-SHAFT PINCH PMO-HOLDER RUBBER PMO-ROLL PINCH PMO-SUPPORT ADF RPR-RUBBER ADF MEC-BRUSH ANTISTATIC Samsung Electronics SEC.Code Q’ty SA JC81-00457A JG75-10015A * * JC39-00101A * JC61-00040A JC72-00671A JC72-00823A JC72-41322A JF70-40521B JG72-40044A JG72-40663A JG72-41083A JC73-00032A JG75-10004A 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 O O X X O X O O O O O O O O O O Remark 5-15 Exploded Views and Parts List 5-9 Front Assembly S 1-2 1-5 1-1 1-3 1-4 1 S 0 25 24 5 21 4 29 32 30 32 30 2 32 10 28 26 11 28 S3 18 27 31 22 9 15 S S 23 S 27 28 31 3 19 S3 16 8 17 18 20 Bushing White 6 7 14 5-16 33 Samsung Electronics Exploded Views and Parts List Front Assembly Parts List O : Service available X : Service not available No. 0 1 1-1 1-2 1-3 1-4 1-5 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 S1 S3 S4 S7 S11 S11 Description SEC.Code Q’ty SA ELA HOU-FRONT ASS’Y MEA ETC-GUIDE PAPER PMO-GUIDE PAPER PMO-GUIDE DOC L PMO-GUIDE DOC R GEAR-PINION IPR-WASHER SPRING CU CONTACT IMAGE SENSOR CONTACT IMAGE SENSOR MOTOR STEP-SCAN MEC-ROLLER WHITE CBF HARNESS-SCAN/CIS(200) CBF HARNESS-SCAN/CIS(300) CBF HARNESS-MAIN/SCAN CBF HARNESS-SCAN GND SPRING-LOCKER R SPRING-LOCKER L GEAR- 39/20 GEAR- IDLE 30 IPR-BRKT MOTOR NPR-GROUND CIS PMO-OPEN LOCKER L PMO-OPEN LOCKER R PMO-BRKT SCAN B’D PMO-OPEN BUTTON PMO-COVER MOTOR PMO-COVER FRONT PMO-DUMMY CIS L SF-530 PMO-DUMMY CIS L PMO-DUMMY CIS R SF-530 PMO-DUMMY CIS R PMO-STOPPER EXIT MEC-ROLLER DRIVE MEA ETC-ROLLER ADF SPECIAL SCREW LOCKER-TX GEAR-IDLE25 PMO-SHAFT EXIT PMO-GEAR TRANS(B4) PMO-BUSHING TX(B4) RING-C SPRING CIS SCREW-MACHINE SCREW-TAPPING SCREW-TAPPING SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE JC81-00458A * * * * JG66-40003A JF70-10616A 0609-001127 0609-001125 JC31-00011A JC75-00126A JC39-00049A JC39-00136A JC39-00192A JC39-00101A JC61-00027A JC61-00028A JC66-00304A JC66-00305A * * * * JC72-00222A JC72-00273A JC72-00670A JC72-00673A JC72-00880A JC72-00495A JC72-00881A JC72-00496A * JC75-00123A * JG60-10001A JG64-30001A JG66-40036A JG72-40042A JG72-40741A JG72-40744A 6044-000159 JG61-70533A 6001-000131 6002-000175 6002-001078 6003-000196 6003-000119 6003-000119 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 2 3 1 2 9 3 2 2 2 1 2 2 6 O X X X X O O O O O O O O O O O O O O X X X X O O O O O O O O X O X O O O O O O O O O O O O O O Samsung Electronics Remark SF-530 SF-531P SF-530 SF-531P SF-530 SF-531P SF-530 SF-531P 5-17 Exploded Views and Parts List 5-10 RX Drive Unit Assembly 0 7 S7 4 6 1 5 S7 2 S-7 3 S-7 S-7 RX Drive Assembly Parts List O : Service available X : Service not available No. 0 1 2 3 4 5 6 7 S-7 5-18 Description ELA HOU-RX DRIVE MOTOR-STEP PMO-GEAR_71/28 PMO-GEAR_73/22 PMO-GEAR_132/19 IPR-BRKT_MOTOR IPR-BRKT_GEAR CBF-HARNESS_MOTOR SCREW-MACHINE SEC.Code Q’ty SA JC96-01755A JC31-00005A * * * * JC70-00129A JC39-00110A 6001-000131 1 1 1 1 1 1 1 1 5 O O X X X X O O O Remark YELLOW Samsung Electronics Samsung Electronics Not e. CI S LC D USB CENTRONI CS CI S I NTERFACE PART TX MOTOR DRI VER U A RT UNI CON ( USB I C) -. SF-531P : Printer Funct ion with Fax -. SF-530 : Fax Funct io n Only TX MOTOR SCAN B oar d - Key Sc an - LCD Dr i v e MI COM OPE DO C SE N SO R HOST ( P C) * Note MEMORY I / F UART* 2 PVC DMAC CACHE( 6K) I/O I/F I TU P1284 GEU ARM7T KS32C65100 MAI N 33600 bps MODEM ( 8MB) DRAM ( 2MB) F LASH MEMORY Audi o Par t Bac k - up Par t RT C Tx : Rx 600/ / 600 TRANSFORMER Tx : Rx 600/ / 600 TRANSFORMER H VPS B ’D LI U SM P S E N G IN E - 5V +24V +5V PAR T DETECTI ON PHONE EXTER NAL PA RT SEPER ATI NG MODEM & EXT_PHONE T HV D EV SU PPL Y O PC G N D MHV O P C _F U S E FA N O L E N OI D E M OT OR E X IT SEN SO R EXTERNAL PHONE HANDSET LI NE POWER CORD 6. Block Diagram 6-1 Repair Manual SAMSUNG FACSIMILE SF-530/531P CONTENTS 1. Block Diagram 2. Connection Diagram 3. Circuit Description 4. Schematic Diagrams Electronics SAMSUNG This manual is made and described centering around circuit diagram and circuit description needed in the repair center in the form of appendix. Samsung Electronics Digital Printing CS Group Copyright (c) 2001. 10 Samsung Electronics Not e. CI S LCD USB CENTRONI CS CI S I NTERFACE PART TX MOTOR DRI VER U A RT UNI CON ( U S B I C) -. SF-531P : Printer Funct ion with Fax -. SF-530 : Fax Funct io n Only TX MOTOR SCAN Boar d - Key Sc an - LCD Dr ive MI COM OPE DOC SE N SO R HOST ( P C) * Note MEMORY I / F UART*2 PVC DMAC CACHE( 6K) I/OI/F I TU P1284 GEU ARM7T KS32C65100 MAI N 33600 bps MODEM ( 8 MB ) DRAM ( 2 MB ) F L ASH MEMORY Audi o Par t Back- up Par t RTC Tx: Rx 600/ / 600 TRANSFORMER Tx: Rx 600/ / 600 TRANSFORMER HVPS B'D LI U SM P S E N GIN E - 5V +24V +5V PART DETECTI ON PHONE EXTERNAL PART SEPERATI NG MODEM & EXT_PHONE THV D EV SU PPL Y OPC GN D MHV O PC _F U SE FA N O L E N OI D E MOT OR E X IT SEN SOR EXTERNAL PHONE HANDSET LI NE POWER CORD 1 BLOCK DIAGRAM 1. Block Diagram Repair Manual 1-1 2 CONNECTION DIAGRAM 2. Connection Diagram SCAN MOTOR 1 2 3 4 5 6 LCD 5 4 3 2 1 CN1 GND5 +5V OPE_ TXD OPE_ RST OPE RXD 1 2 3 4 5 6 7 200 DPI CIS_SIG GND +5V CIS_SI CIS_CLK CIS_LED +24V CN2 3 4 5 300 DPI 1 CIS_SIG 2 GND 3 +5V 4 GND 5 GND 6 START PULSE 7 GND 8 CIS MAIN CLOCK 9 LED B 10 LED G 11 LED R 12 V LED CN4 SCAN B’ D 1 2 CN1 6 7 8 9 10 11 12 13 14 15 16 1 7 18 17 +24V 18 +24V 15 +5V 16 SCNMOT A 12 SCNMOT B 13 SCNMOT * A 14 SCNMOT * B 11 GND 10 OPE RXD 8 OPE TXD 9 GND5 7 OPE RST 5 +5V 6 GND5 3 CI S LCD 1 CI S CLK 2 CI S SI OPE +24 +24 SCNMOT_A SCNMOT_*A SCNMOT_B SCNMOT_*B CN3 4 CI S SIG 1 GND5 2 +5 V 3 V0 4 L CD_ RS 5 L CD_ RW 6 L CD_ F 7 L ED_ 0 8 L ED_ 1 9 L ED_ 2 1 0 L ED_3 1 1 L ED_4 1 2 L ED_5 1 3 L ED_6 1 4 L ED_7 CIS 2 1 4 3 6 5 8 7 1 0 9 12 11 14 13 16 15 18 17 CN1 6 IEEE1284 I/F (36PIN) HOST CN1 2 1 SPKOUT 2 AGND CN2 1 2 3 4 5 + 24 VS GND2 4 PMOTOR / LREADY EXTCLK 6 7 8 9 10 11 / USYNC + 5V CND 5 / LD_ ON VD0 / APC_SH 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 SLUTCH FAN PTL DEV_FUSE / NEW_DEVE / EGMOT_ A0 / EGMOT_ A1 EGMOT_ PHA / EGMOT_ B0 / EGMOT_ B1 GND 5 + 5V EGMOT_ PHA + 24 VS + 24 VS GND2 4 GND2 4 ( PC) USB PORT (4PIN) CN19 M AIN B’d 1 2 3 4 SENSOR B’ D COVER SWIT CH THER- MI STOR CN1 H VPS +5V / PEMPTY / FE ED GND5 1 + 2 4V 2 + 2 4VS CN1 8 1 THERM_A 2 THERM_B CN7 1 2 3 4 5 6 7 8 9 + 2 4VS1 GND2 4 THVPWM / THV_ EA THVREAD MHVPW M B I ASPWM +5V GND5 CN9 CN15- 1 CN8 - 1 CN1 4 CN1 3- 1 Heat Lamp (Fuser) MODEM TXA1 MODEM TXA2 AGND NC MODEM RX / EXT PHONE CM L1 REMOTE CML2 / DP / HOOK1 +5V G ND5 / RI NG MI C1 RCV3 MI C2 RCV1 HOOK2 HOOK2 _NC HOOK2 _NO 1 0 HOOK1 1 1 HOOK1_ NO 1 2 HOOK1_ NC CN1 LIU B’d LSU LD DIODE CN7 ENGINE B’ d SMPS CN5 03 HOT Neutral AC LINE CN3 CN2 POLYGO N MOT OR 1 + 2 4VS 2 FUSER_ON 3 +5V 4 / EXI T 5 +5V 6 GND5 7 +5V 8 GND5 9 - 5V 1 0 GND 5 1 1 2 4V 1 2 GND 2 4 1 3 2 4V 1 4 GND2 4 1 5 2 4V 1 6 GN D2 4 14 13 12 11 10 9 8 7 6 5 4 3 2 1 HOOK B’d 1 2 3 4 5 6 7 SPK 1 2 3 4 5 L I NE_ 2 L I NE_ 3 L I NR_ 4 L I NR_ 5 L I NR_ 6 6 EXT_ 3 7 EXT_ 4 8 EXT_ 5 MJ1 MJ1 Repair Manual Samsung Electronics 2-1 3 CIRCUIT DESCRIPTION 3. Circuit Description 3-1 Main PBA 3-1-1 Summary The main circuit that consists of CPU, MFP controller including various I/O device drivers, system memory, scanner, printer, motor driver, PC I/F, and FAX transceiver controls the whole system. The entire structure of the main circuit is as follows: ADDR DATA CNTR I/O Ports Controller PLL & Clock Save Scan Image & Scan Motor Controller Bus Router Ink Head Controller Interrupt Controller CPU (ARM7TDMI) LBUS I/D Cache (2-KB) A/D Converter DMA Controller Derasterizer Parallel Port Interface Carrier Motor Control Video Data Controller Position & Fire Control UART/ Serial I/O Paper Motor Control LSU Control Real Time Clock PWM & Gen. Timer Watch Dog Timer System Manager System Bus Controller Bus Interface Bus Arbitration ROM/SRAM/DRAM Controller Repair Manual Samsung Electronics 3-1 CIRCUIT DESCRIPTION 3-1-2 Circuit Operation • CLOCK 1) System Clock Device Oscillator Frequency 9.500132 MHz KS32C65100 RISC PROCESSOR: drives PLL internally and uses 37.17 MHz. 2) Video Clock Device Frequency Oscillator 28.7448 MHz 3) USB Clock Device Frequency Oscillator 48 MHz±% 3-2 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION • KS32C65100 MICROPROCESSOR 1) KS32C65100 MICROPROCESSOR PIN & INTERFACE Signal Pin No. I/O Type Description OSCI 184 I7 KS32C65100 master clock input. OSCO 185 O7 KS32C65100 master clock output. PLL_FILTER 183 I5 PLL filter nRESET 182 I4 Not reset. nRESET is the global reset input for the KS32C65100. For a system reset, nRESET must be held to low level for at least 65 machine cycles. nSLCTIN/GIP[16] 152 I1 Not select information. This input signal is used by parallel port interface to request 'on-line' status information. nSTROBE 151 I1 Not strobe. The nSTROBE input indicates when valid data is on parallel port data bus, PPD[7:0] nAUTOFD/GIP[17] 154 I1 Not auto feed. The nAUTOFD input indicates whether data on the parallel port data bus, PPD[7:0], is an auto feed command. Otherwise, the bus signals are interpreted as data only. nINIT/GIP[15] 153 I1 Not initialization. The nINIT input signal initializes the parallel port's input control. nACK 159 I1 Not parallel port acknowledge. The nACK output signal is issued whenever a transfer on the parallel port data bus is completed. BUSY 158 O1 Parallel port busy. The BUSY output signal indicates that the KS32C65100 parallel port is currently busy. SELECT 156 O1 Parallel port select. The SELECT output signal indicates whether the device connected to the KS32C65100 parallel port is 'on-line' or 'off-line'. O1 Parallel port paper error. PERROR output indicates that a problem exists with the paper in the ink-jet printer. It could indicate that the printer has a paper jam or that the printer is out of paper. Not fault. The nFAULT output indicates that an error condition exists with the printer. This signal can be used to indicate that the printer is out of ink or to inform the user that the printer is not turned on. PERROR 157 nFAULT 155 O1 PPD[7:0] 142~149 I/O2 SAVRT 2 I6 Top reference voltage for IP ADC SAIN 3 I6 Analog input for IP ADC SAVRB 4 I6 Bottom reference voltage for IP ADC arallel port data bus. This 8-bit, tri-state bus is used to exchange data between the KS32C65100 and an external host(peripheral). Repair Manual Samsung Electronics 3-3 CIRCUIT DESCRIPTION Signal Pin No. I/O Type CIS_CLK 6 O1 CIS shift clock CIS_SI 7 O1 CIS latch signal PHA_IA0 164 O1 Line feed motor phase signal A PHA_IA1 165 O1 Line feed motor phase signal AZ PHB_IB0 167 O1 Line feed motor phase signal B PHB_IB1 168 O1 Line feed motor phase signal BZ LF_PH0/GOPA[21] 163 O1 Line feed motor control signal 0 LF_PH1/GOPA[22] 166 O1 Line feed motor control signal 1 CR_PHA/GOPA[23] 110 O1 Direction control line for phase A CR_PHB/GOPA[24] 113 O1 Direction control line for phase B CRIA0/GOPA[25] 109 O1 Current control line 0 for phase A CRIA1/GOPA[26] 111 O1 Current control line 1 for phase A CRIB0/GOPA[27] 112 O1 Current control line 0 for phase B CRIB1/GOPA[28] 114 O1 Current control line 1 for phase B CHX/GIP[8] 116 I3 Encode sensor CHY/GIP[9] 117 I3 Encode sensor ADDR[21:0] 77~80, 82~88, 90~100 O5 Address bus. The 22bit address bus, ADDR[21:0], covers the full 4M half-words address range of each ROM/SRAM, DRAM, and external I/O bank DATA[15:0] 59~66, 68~75 I/O3 nRAS[1:0] 52,53 O1 Not row address strobe for DRAM. The KS32C65100 supports up to two DRAM banks. One nRAS output is provided for each bank. nCAS[1:0] 54,55 O1 Not column address strobe for DRAM. The two nCAS outputs indicate the byte selections whenever a DRAM bank is accessed. nOE 56 O1 Not output enable. Whenever a memory access occurs, the nOE output controls the output enable port of the specific memory device. nWE 57 O6 Not write enable. Whenever a memory access occurs, the nWE output controls the write enable port of the specific memory device. 16~24, 26~29 O1 Gate control line for print head. 31~38, 40~47 I/O1 Drain control line for print head. nPHGA[13:1]/ GOPB[12:0] PHOE[16:1]/ GIOP[26:11] 3-4 Description External bi-directional 16-bit data bus. Repair Manual Samsung Electronics CIRCUIT DESCRIPTION Signal Pin No. I/O Type RXD0/GIP[0] 194 I1 Receive data input for the UART0. RXD0 is the UART0 channel's input signal for receiving serial data. RXD1/GIP[1] 192 I1 Receive data input for the UART1. RXD1 is the UART1 channel's input signal for receiving serial data. RXD2/GIP[2] 190 I1 Receive data input for the UART2. RXD2 is the UART2 channel's input signal for receiving serial data. 8 I3 External interrupt request input nEINT0. nEINT1/GIP[4] 9 I3 External interrupt request input nEINT1. nEINT2/GIP[5] 10 I3 External interrupt request input nEINT2. nXDREQ/GIP[6] 199 I3 External DMA request. TXD0/GOPA[0] 193 O1 Transmit data output for the UART0. TXD0 is the UART0 channel's output for transmitting serial data. TXD1/GOPA[1] 191 O1 Transmit data output for the UART1. TXD1 is the UART1 channel's output for transmitting serial data. TXD2/GOPA[2] 189 O1 Transmit data output for the UART2. TXD2 is the UART2 channel's output for transmitting serial data. nXDACK/GOPA[5] 200 O1 External DMA acknowledge. This active low output signal is generated whenever a DMA transfer is completed. TONEOUT/GOPA[3] 188 O1 Tone generator output. nWDTO/GOPA[4] 187 P3 Reset out by watch dog timer. nIOWR/GOPA[10] 161 O1 External output write strobe nIORD/GOPA[9] 162 O1 External output read strobe CLKOUT/GOPA[6] 180 O1 Clock for external chip 14 O1 External memory chip select 2. TCK 132 I2 JTAG TCK interface in MDS mode. TMS 135 I2 JTAG TMS interface in MDS mode. TDI 133 I2 JTAG TDI interface in MDS mode. nTRST 136 I2 JTAG nTRST interface in MDS mode. TDO 134 O1 JTAG TDO interface in MDS mode. 137~140, 173~179 I/O4 TEST0 169 I2 Test 0 pin. At normal operation this pin must be connected to GND. TEST1 170 I2 Test 1 pin. At normal operation this pin must be connected to GND. TEST2 171 I2 Test 2 pin. At normal operation this pin must be connected to GND. nEINT0/GIP[3] nECS2/GOPA[8] GIOP[10:0] Description General I/O port. Repair Manual Samsung Electronics 3-5 CIRCUIT DESCRIPTION Signal I/O Type Description 12,13 O1 Not external chip select. Three I/O banks are provided for external memory-mapped I/O operations. Each I/O bank contains up to 4M half-word. The nECS signals indicate that an external I/O bank is selected. nRCS[2] 51 O2 nRCS[1]/GOPA[7] 50 O1 nRCS[0] 49 O1 102 O1 Scan motor control/Bi-phase 105 O1 Scan motor control/Bi-phase 103, 104, 106, 107 O1 Scan motor bi-current/uni-phase 118~120 O1 PWM out signal VDO2/GOPA[29] 121 O4 Video out from PIFC VDO1/GOPA[14] LSU_CLK/ 122 O5 Video out from LSU control 123 O1 Clock for LSU motor nECS[1:0] SC_CONPHA/ GOPA[19] SC_CONPHB/ GOPA[20] SC_CUR[3:0] PWMO[2:0]/ GOPA[13:11] GOPA[15] nHSYNC1/GIP[10] Not ROM/SRAM chip select. The KS32C65100 can access up to three external ROM/SRAM banks. nRCS[0] corresponds to ROM/SRAM bank 0, nRCS[1] to bank 1, and nRCS[2] to bank 2. By controlling the nRCS signals, CPU addresses can be mapped into the physical memory banks. 125 I1 HSYNC1 nLREADY/GIP[11] 126 I1 LSU ready nHSYNC2/GIP[12] 127 I1 HSYNC2 VDI/GIP[13] 128 I2 Video data input from RET VCLK/GIP[14] 129 I2 External video clock nEXTWAIT/GIP[7] 130 I3 External wait RTCXIN 202 I7 RTC oscillator clock input. RTCXOUT 203 O7 RTC oscillator clock output. 196~198 O1 CIS LED signals 205 I5 Top reference voltage for general ADC GAIN[2:0] 206~208 I5 Analog inputs for general ADC RTC_VDD 201 SLED[2:0]/ GOPA[18:16] GAVRT Signal VDD_PLL SAVDD Pin No. 186 RTC VDD. I/O Type Description PLL power (3.3V). 1 Analog power for scan ADC and general ADC (3.3V). SAVSS 5 Scan ADC ground. GAVSS 204 15, 30, 81, 115, 131, 160 48, 67, 89, 141, 195 3VDD 5VDD VSS 3-6 Pin No. 11, 25, 39, 58, 76, 101, 108, 124, 150, 172, 181 General ADC ground 3.3V internal power. Externally connected to the 3.3V regulator. 5V I/O power. Externally connected to the VCC board plane. System ground. Externally connected to the ground board plane. Repair Manual Samsung Electronics CIRCUIT DESCRIPTION 3-1-3 PROGRAM ROM (FLASH MEMORY) 1) DEVICE TYPE No. CAPACITY AM29F800B 2 Mbit (512K * 16bit * 2) 2) PROGRAMMING BEFORE ASS’Y AFTER ASS’Y EPROM PROGRAMMER or PROGRAMMING at the factory DOWNLOAD from PC 3-1-4 DRAM CONTROL 1) DEVICE TYPE NO. CAPACITY K4E641611D-TC50(EDO Type) 64 Mbit (4M * 16bit) 2) OPERATING PRINCIPLE DRAM can either read or write. The data can be stored in the DRAM only when the power is on. It stores data white the CPU processes data. The address to read and write the data is specified by RAS SIGNAL and CAS SIGNAL. DRAMWE*SIGNAL is activated when writing data and DRAMOE*SIGNAL, when reading. 3-1-5 USB (Universal Serial Bus) SAMSUNG’S UNICON is used as the interface IC and 48MHz clock is used. When the data is received through the USB port, USBIRQ SIGNAL is activated to send interrupt to CPU, then it directly sends the data to DRAM by USB_CS SIGNAL through D(0;7). 3-1-6 Modem and TX-and RX Related Circuits MODEM The Conexant™ FM336 modem is a V.34 half-duplex modem that supports Group 3 facsimile send and receive speeds up to 33600 bps using the V.34 half-duplex mode. Using a V.34 technique to optimize modem configuration for line conditions, the modem connects at the optimal selected data rate that the channel can support from 33600 bps to 2400 bps. The modem can operate over the public switched telephone network (PSTN) through a line terminator provided by a Data Access rrangement (DAA). The modem satisfies the requirements specified inITU-T recommendations V.34, V.17, V.29, V.27 ter, V.23, V.21, and meets the binary signal ingrequirements of V.8 and T.30. Internal HDLC support eliminates the need for an external serial input/output (SIO) device in the DTE for products incorporating error detection and T.30 protocol. The modem can perform HDLC framing per T.30 at all data speeds. CRC generation/checking along with zero insertion/deletion enhances DLC/HDLC frame operations. An FSK flag pattern detector facilitates FSK detection during high speed reception.The modem features a programmable DTMF transmitter/receiver and three programmable tone detectors which operate in the tone mode. The modem offers lower power consumption and small size to allow the design of compact system enclosures for use in industrial, office, and home environments.The modem is available in a 100-pin PQFP package. Repair Manual Samsung Electronics 3-7 CIRCUIT DESCRIPTION FM336 FEATURES • 2-wire half - duplex fax modem modes with send and receive data rates up to 33600 bps. - V.34, V.17, V.29, V.27 ter, and V.21 channel 2 - Short train option in V.17 and V.27 ter • 2-wire full - duplex data modem modes - V.21, V.23 (75 bps TX/1200 bps RX or 1200 bps TX/ 75 bps RX) • PSTN session starting - V.8 signaling • HDLC support at all speeds - Flag generation, 0 bit stuffing, ITU CRC - 16 or CRC - 32 calculation and generation - Flag detection, 0 bit deletion, ITU CRC - 16 or CRC - 32 check sum error detection - FSK flag pattern detection during high speed receiving • Tone modes and features - Programmable single or dual tone generation - DTMF receive - Tone detection with three programmable tone detectors • Serial synchronous data • Parallel synchronous data • Automatic Rate Adaptation (ARA) in V.34 Half-Duplex • TTL and CMOS compatible DTE interface - ITU-T V.24 (EIA/TIA-232-E) (data/control) - Microprocessor bus (data/configuration/control) • Receive dynamic range: 0 dBm to –43 dBm for V.17, V.33, V.29, V.27terand V.21, –9 dBm to –43 dBm for V.34 half-duplex • Programmable RLSD turn-on and turn-off thresholds • Programmable transmit level: 0 to -15 dBm • Adjustable speaker output to monitor received signal • DMA support interrupt lines • Two 16-byte FIFO data buffers for burst data transfer with extension up to 255 bytes • NRZI encoding/decoding • Diagnostic capability • +3.3V operation with +5V tolerant inputs • +5V analog signal interface • Typical power consumption:- Sleep mode: 20 mW - Normal mode: 250 mWa • 100-pin PQFP package 3-8 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION Signaling Rates, and Data Rates Configuration V.34 33600 TCM V.34 31200 TCM V.34 28800 TCM V.34 26400 TCM V.34 24000 TCM V.34 21600 TCM V.34 19200 TCM V.34 16800 TCM V.34 14400 TCM V.34 12000 TCM V.34 9600 TCM V.34 7200 TCM V.34 4800 TCM V.34 2400 TCM Modulation1 Carrier Frequency (Hz) –0.01% Data Rate (bps) –0.01% Symbol Rate (Symbols/Sec.) Bits/Symbol Data Bits/Symbol TCM Constellation Points TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 2400 3429 only 3200 min 3000 min 2800 min 2800 min 2400 min 2400 to 3429 2400 to 3429 2400 to 3429 2400 to 3429 2400 to 3429 2400 to 3429 2400 to 3429 2400 only Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 V.23 1200/75 FSK 1700/420 1200/75 1200 1 0 — V.21 FSK 1080/1750 Up to300 300 1 0 — V.17 14400 TCM V.17 12000 TCM V.17 9600 TCM V.17 7200 TCM TCM TCM TCM TCM 1800 1800 1800 1800 14400 12000 9600 7200 2400 2400 2400 2400 6 5 4 3 1 1 1 1 128 64 32 16 V.29 9600 V.29 7200 V.29 4800 QAM QAM QAM 1700 1700 1700 9600 7200 4800 2400 2400 2400 4 3 2 0 0 0 16 8 4 V.27 ter 4800 V.27 ter 2400 DPSK DPSK 1800 1800 4800 2400 1600 1200 3 2 0 0 8 4 FSK 1750 300 300 1 0 — V.21 Channel 2 Notes: 1. Modulation legend: TCM:Trellis-Coded Modulation QAM: FSK:Frequency Shift Keying DPSK: 2. Adaptive; established during handshake: Carrier Frequency (Hz) Symbol Rate (Baud) V.34 Low Carrier 2400 1600 2800 1680 3000 1800 3200 1829 3429 1959 Quadrature Amplitude Modulation Differential Phase Shift Keying V.34 High Carrier 1800 1867 2000 1920 1959 Repair Manual Samsung Electronics 3-9 CIRCUIT DESCRIPTION Modem Functions Interface Signals /RTS XTLI /CTS XTL0 TXD OR TDCLK CLKIN Oscillator XTCLK V.24 Interface Crystal /RLSD RXD RIN /RDCLK TXA1 /DTR TXA2 /DSR** OH /RI* telephone line TIP Line Interface RING RINGD /TALK /RD Host Processor FM336 Modem /WR EYEXY /CS EYESYNC D[7:0] EYECLK Optional Eye Pattern Generator RS[4:0] IRQ /RESET TXRQ* SPKR RXRQ** Speaker Amplifier +5V +3.3V AGND Power Supply DGND * Selectable; TXRQ output replaces /RI output. ** Selectable; RXRQ output replaces /DSR output. 1176DG F2-1 3-10 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION FM336 Pin Signals Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Signal Label RESERVED RS2 RS3 RS4 /CS /WR /RD /RDCLK /RLSD TDCLK TXD /CTS VDD1 RESERVED RESERVED VSS NC /RESET SR4OUT NC SR4IN CLK_OUT EYESYNC EYECLK MAVSS MAVDD SPKR TXA2 TXA1 VREF VC RIN MAVSS /POR RESERVED RESERVED /TALK VDD RESERVED RESERVED NC M_CNTRL_SIN M_CLKIN M_TXSIN M_SCK M_RXOUT M_STROBE RESERVED OH VDD I/O Type 1 IA IA IA IA IA IA OA OA OA IA OA PWR GND OA OA IA OA OA OA GND PWR O(DF) O(DD) O(DD) MI MI I(DA) AGND IA O(DD) PWR IA IA IA IA IA IA O(DD) PWR Interface 3 HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface DTE Serial Interface DTE Serial Interface DTE Serial Interface DTE Serial Interface DTE Serial Interface NC Modem Interconnect Modem Interconnect NC Modem Interconnect Modem Interconnect Diagnostic Signal Diagnostic Signal Telephone Line Interface Telephone Line Interface Telephone Line Interface Modem Interconnect Modem Interconnect Te lephone Line Interface Modem Interconnect Telephone Line Interface NC Modem Interconnect Modem Interconnect Modem Interconnect Modem Interconnect Modem Interconnect Modem Interconnect Telephone Line Interface - Pin 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Signal Label RESERVED VSUB VSS NC NC Sleep VDD1 RESERVED RESERVED NC SR1IO VCORE VDD1 XTCLK VSS RESERVED RXD /DTR VDD1 IA_SLEEP VGG YCLK XCLK EYEXY /DSR /RI RINGD /RTS IRQ VSS GPO0 RESERVED RESERVED VDD1 XTALI/CLKIN XTALO D0 D1 D2 D3 D4 VDD1 D5 D6 D7 RS0 RS1 PLL_VDD VSS PLL_GND I/O Type 1 GND GND MI PWR MI PWR PWR IA GND OA IA PWR MI PWR OA OA OA OA OA IA IA OA GND MI PWR I O IA/OB IA/OB IA/OB IA/OB IA/OB PWR IA/OB IA/OB IA/OB IA/OB IA/OB PWR GND GND Interface 3 NC NC Modem Interconnect NC Modem Interconnect DTE Serial Interface DTE Serial Interface DTE Serial Interface Modem Interconnect Overhead Signal Overhead Signal Diagnostic Signal DTE Serial Interface Telephone Line Interface Te lephone Line Interface DTE Serial Interface HOST Interface Modem Interconnect Overhead Signal Overhead Signal HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface HOST Interface - Notes: 1. I/O types: MI = Modem interconnect. IA, IB = Digital input. OA, OB = Digital output. I(DA) = Analog input. O(DD), O(DF) = Analog output. 2. NC = No external connection required. RESERVED = No external connection allowed. 3. Interface Legend: HOST = Modem Control Unit (Host) DTE = Data Terminal Equipment Repair Manual Samsung Electronics 3-11 CIRCUIT DESCRIPTION FM336 Signals Definitions Label I/O Type TXA1, TXA2 O(DD) RIN O(DA) RINGD IA /TALK O(DD) OH O(DD) /RI OA Signal Name/Description TELEPHONE LINE INTERFACE/AUXILIARY Transmit Analog 1 and 2. The TXA1 and TXA2 outputs are differential outputs 180 degrees out of phase with each other. Each output can drive a 300 load. Receive Analog. RIN is a single-ended receive data input from the telephone line interface or an optional external hybrid circuit. Ring Detect. The RINGD input is monitored for pulses in the range of 15 Hz to 68 Hz. The frequency detection range may be changed by the host in DSP RAM. The circuit driving RINGD should be a 4N35 optoisolator or equivalent. The circuit driving RINGD should not respond to momentary bursts of ringing less than 125 ms in duration, or less than 40 VRMS (15 Hz to 68 Hz) across TIP and RING. Detected ring signals are reflected on the /RI output signal as well as the RI bit. Relay B Control. The /TALK open collector output can directly drive a +5V reed relay coil with a minimum resistance of 360 ohms (13.9 mA max. @ 5.0V) and a must-operate voltage no greater than 4.0 VDC. A clamp diode, such as a 1N4148, should be installed across the relay coil. An external transistor can be used to drive heavier loads (electro-mechanical relays). /TALK is controlled by host setting/resetting of the RB bit. In a typical application, /TALK is connected to the normally closed Tal k/Data relay (/TALK). In this case, /TALK active opens the relay to disconnect the handset from the telephone line. Relay A Control. The OH open collector output can directly drive a +5V reed relay coil with a minimum resistance of 360 ohms (13.9 mA max. @ 5.0V) and a must-operate voltage no greater than 4.0 VDC. A clamp diode, such as a 1N4148, should be installed across the relay coil. An external transistor can be used to drive heavier loads (electro-mechanical relays). OH is controlled by host setting/resetting of the RA bit. In a typical application, OH is connected to the normally open Off-Hook relay (OHRC). In this case, OH active closes the relay to connect the modem to the telephone line. Alternatively, in a typical application, OH is connected to the normally open Caller ID relay (CALLID). When the modem detects a Calling Number Delivery (CND) message, the OH output is asserted to close the CALLID relay in order to AC couple the CND information to the modem RIN input (without closing the offhook relay and allowing loop current flow which would indicate an off-hook condition). Ring Indicator. /RI output follows the ringing signal present on the line with a low level (0 V) during the ON time, and a high level (+3.3 V) during the OFF time coincident with the ringing signal. The RI status bit reflects the state of the /RI output. DIAGNOSTIC SIGNALS EYEXY OA EYECLK OA EYESYNC OA SPKR O(DF) Three signals provide the timing and data necessary to create an oscilloscope quadrature eye pattern. The eye pattern is a display of received baseband constellation. By observing this constellation, common line disturbances can usually be identified. Serial Eye Pattern X/Y Output. EYEXY is a serial output containing two 11-bit diagnostic words (EYEX and EYEY) for display on the oscilloscope X axis (EYEX) and Y axis (EYEY). EYEX is the first word clocked out; EYEY follows. Each word has 8-bits of significance. EYEXY is clocked by the rising edge of EYECLK. This serial digital data must be converted to parallel digital form by a serial-to-parallel converter, and then to analog form by two digital-to-analog (D/A) converters. Serial Eye Pattern Clock. EYECLK is a 336 kHz output clock for use by the serial-to-parallel converters. The low-to-high transitions of RDCLK coincide with the low-to-high transitions of EYECLK. EYECLK, therefore, can be used as a receiver multiplexer clock. Serial Eye Pattern Strobe. EYESYNC is a strobe for loading the D/A converters. SPEAKER INTERFACE 3-12 Speaker Analog Output. The SPKR output reflects the received analog input signal. The SPKR on/off and three levels of attenuation are controlled by bits in DSP RAM. When the speaker is turned off, the SPKR output is clamped to the voltage at the VC pin. The SPKR output can drive an impedance as low as 300 ohms. In a typical application, the SPKR output is an input to an external LM386 audio power amplifier. Repair Manual Samsung Electronics CIRCUIT DESCRIPTION FM336 Signals Definitions (Cont’d) Label I/O Type VC MI VREF MI /POR /RESET CLK_OUT SR4OUT SR4IN SR1IO M_CNTRL_SIN M_CLKIN M_TXSIN M_SCK M_RXOUT M_STROBE SLEEP IA_SLEEP GPO0 IA OA MI OA IA OA IA IA IA IA IA IA MI MI MI /RDCLK OA /RLSD OA TDCLK OA TXD IA Signal Name/Description REFERENCE SIGNALS AND MODEM INTERCONNECT Low Voltage Reference. Connect to analog ground through 10 F (polarized, + terminal to VC) and 0.1 F (ceramic) in parallel. High Voltage Reference. Connect to VC through 10 F (polarized, + terminal to VREF) and 0.1 F (ceramic) in parallel. Power-On-Reset. Connects to /RESET. Reset. Connects to /POR. IA Clock. Connect to M_CLKIN. SR4OUT. Connect to M_TXSIN. SR4IN. Connect to M_RXOUT. SR1IO. Connect to M_CNTRL_SIN. M_CNTRL_SIN. Connect to SR1IO. M_CLKIN. Connect to CLK_OUT. M_TXSIN. Connect to SR4OUT. M_SCK. Connect to EYECLK. M_RXOUT. Connect to SR4IN. M_STROBE. Connect to EYESYNC. SLEEP. Connect to IA_SLEEP. IA_SLEEP. Connect to SLEEP GPO0. Connect to /RDCLK. DTE SERIAL INTERFACE Receive Data Clock. The modem outputs a synchronous Receive Data Clock (/RDCLK) for USRT timing. The /RDCLK frequency is the data rate (–0.01%) with a duty cycle of 50 –1%. The /RDCLK low-to-high transitions coincide with the center of the received data bits. Received Line Signal Detector. For V.17, V.33, V.29, and V.27 ter; RLSD goes active at the end of the training sequence. If energy is above the turn-on threshold and training is not detected, the /RLSD off-to-on response time is 816 baud times for V.17/V.33, V.29, and V.27 ter long train; 492 baud times for V.17/V.33; and 486 baud times for V.27 ter short train. The /RLSD on-to-off time is 40 – 5 ms for V.17/V.33, 35 – 5 ms for V.29 or 11.6 – 5 ms for V.27 ter. The /RLSD on-to-off time ensures that all valid data bits have appeared on RXD. The /RLSD programmable threshold levels default to —43dBm for off-to-on and to —48dBm for onto-off. A minimum hysteresis of 2 dBm exists between the actual off-to-on and on-to-off transition levels. The threshold level and hysteresis are measured with an unmodulated 2100 Hz tone applied to the Receiver Analog (RXA) input. Note: Performance may be degraded when the received signal level is less than —43dBm. Data Clock. The modem outputs a synchronous Data Clock (DCLK) for USRT timing. The DCLK frequency is the data rate (–0.01%) with a duty cycle of 50 –1%. The DCLK low-to-high transitions coincide with the center of the data bits. Transmit Data (TXD) must be stable during the one microsecond period immediately preceding the rising edge of DCLK and following the rising edge of DCLK. Transmit Data. The modem obtains serial data to be transmitted from the local DTE on the Transmit Data (TXD) input in serial data mode (TPDM bit = 0), or from the interface memory Transmit Data Register (TBUFFER) in parallel data mode (TPDM bit = 1). Repair Manual Samsung Electronics 3-13 CIRCUIT DESCRIPTION FM336 Signals Definitions (Cont’d) Label I/O Type /CTS OA XTCLK IA RXD OA /DTR IA /DSR OA /RTS IA /CS IA /WR IA Signal Name/Description Clear To Send. /CTS active indicates to the local DTE that the modem will transmit any data present on TXD. /CTS response times from an active condition of /RTS are shown in Tabl e 1-3. External Transmit Clock. In synchronous communication, an external transmit data clock can be connected to the modem XTCLK input. The clock supplied at XTCLK must exhibit the same characteristics as TDCLK. The XTCLK input is then reflected at the TDCLK output. Received Data. The modem presents received serial data to the local DTE on the Received Data (RXD) output and to the interface memory Receive Data Register (DBUFFER) in parallel data mode. Data Terminal Ready. In V.8 and V.34 configuration, activating /DTR initiates the handshake sequence. The DATA bit must be set to complete the handshake. In V.21 or V.23 configuration, activating /DTR causes the modem to enter the data state provided that the DATA bit is a 1. If in answer mode, the modem immediately sends answer tone. During the data mode, deactivating /DTR causes the transmitter and receiver to turn off and return to the idle state. The /DTR input and the /DTR control bit are logically ORed. Data Set Ready. DSR ON indicates that the modem is in the data transfer state. DSR OFF indicates that the DTE is to disregard all signals appearing on the interchange circuits except Ring Indicator (/RI). /DSR is OFF when the modem is in a test mode (local analog or remote digital loopback). The /DSR status bit reflects the state of the /DSR output. Request to Send. The active low /RTS input allows the modem to transmit data present at TXD in the serial data mode (TPDM bit = 0), or in DBUFFER in the parallel data mode (TPDM bit = 1), when /CTS becomes active. The /RTS hardware control input is logically ORed with the /RTSP bit by the modem to form the resultant control signal. HOST INTERFACE Chip Select. The active low /CS input selects and enables the modem DSP for parallel data transfer between the DSP and the host over the microprocessor bus. Write. Writing is controlled by the host pulsing /WR input low during the microprocessor bus access cycle. The write timing is: Parameter CS Setup Time RSi Setup Time Control Hold Time Write Data Setup Time Write Data Hold Time Symbol TCS TRS THC TWDS TDHW Min. 0 10 10 20 10 Max. — — — — — Units ns ns ns ns ns Note: /RD IA A read or write operation following a write operation must be delayed by at least 4 XCLK cycles. Read Enable. Reading is controlled by the host pulsing /RD input low during the microprocessor bus access cycle. The read timing is: Parameter CS Setup Time RSi Setup Time Data Access Time Data Hold Time Control Hold Time Symbol TCS TRS TDA TDHR THC Min. 0 10 — 10 10 Max. — — 45 — — Units ns ns ns ns ns Notes: 1. /CS and /RD must not both be continuously active. A read or write operation following a read operation must be delayed by at least 2 XCLK cycle. 3-14 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION FM336 Signals Definitions (Cont’d) Label I/O Type IRQ OA D0-D7 IA/OB RS0-RS4 IA/OB VDD1 VSS VGG MAVSS MAVDD VDD VSUB XCLK PWR DGND PWR AGND PWR PWR GND OA YCLK OA Signal Name/Description Interrupt Request. Interrupt request outputs may be connected to the host processor interrupt request input in order to interrupt host program execution for immediate modem service. The IRQ output can be enabled in DSP interface memory to indicate immediate change of conditions in the modem. The use of IRQ is optional depending upon modem application. The IRQ output structure is an open-drain field-effect-transistor (FET). The IRQ output can be wireORed with other IRQ lines in the application system. Any of these sources can drive the host interrupt input low, and the host interrupt servicing process normally continues until all interrupt requests have been serviced (all IRQ lines have returned high). Because of the open-drain structure of IRQ#, an external pull-up resistor to +3.3V is required at some point on the IRQ line. The resistor value should be small enough to pull the IRQ line high when all IRQ drivers are off (it must overcome the leakage currents). The resistor value should be large enough to limit the driver sink current to a level acceptable to each driver. If only the modem IRQ# output is used, a resistor value of 5.6K ohms, 20%, 0.25 W, is sufficient. Data Lines. Eight bi-directional data lines (D0—D7)provide parallel transfer of data between the host and the modem. The most significant bit is D7. Data direction is controlled by the Read Enable (READ#-¿2) and Write Enable (WRITE#-R/W#) signals. During a read cycle, data from the DSP interface memory register is gated onto the data bus via three-state drivers in the DSP. These drivers force the data lines high for a one bit, or low for a zero bit. When not read, the three-state drivers assume their high-impedance (off) state. During a write cycle, data from the data bus is copied into the selected DSP interface memory register, with high and low bus levels representing one and zero bit states, respectively. Register Select Lines. Five active high Register Select inputs (RS0—RS4) address interface memory registers within the DSP when /CS is low. These lines are typically connected to address lines A0-A4. When selected by /CS low, the DSP decodes RS0 through RS4 to address one of 32 8-bit internal interface memory registers (00-1F). The most significant address bit is RS4 while the least significant address bit is RS0. The selected register can be read from, or written into, via the 8-bit parallel data bus (D0—D7). OVERHEAD SIGNALS Label XTALI/CLKIN 3.3V Supply Voltage for DSP Digital Circuits. Digital ground. 5V Supply Voltage for DSP Digital Circuits. Analog ground. 5V Supply Voltage for IA Analog Circuits. 5V Supply Voltage for IA Digital Circuits. Connect to analog ground. XCLK Output. Output clock at 63.5045 MHz, which runs during normal operational mode and turned off during Sleep Mode. YCLK. Output clock at 28.224 MHz, which runs during normal operational mode and turned off during Sleep Mode.. I/O Type I/O Signal Name/Description Crystal In/Clock In. Connect to an external 28.224 MHz crystal circuit or an external 28.224 MHz oscillator circuit. Label XTALO/NC I/O PWR DGND PWR - Oscillator XTALI/CLKIN XTALI CLKIN Crystal Out/NC. Connect to the external crystal circuit return or leave open. Label PLL_VDD PLL_GND VCORE RESERVED Crystal Crystal Oscillator XTALO/NC XTALO NC PLL Supply Voltage. PLL Supply Voltage return. 3.3V Supply Voltage. Connect to VDD1. Reserved pins are used for future development and should not be connected to any circuitry. Repair Manual Samsung Electronics 3-15 CIRCUIT DESCRIPTION 3-1-7 Scanner Part CIS DRIVER, INPUT PROCESSOR CIS contacl signal is consist of BLED, RLED, GLED, CIS_CLK CIS_SI. CIS driver power supply is +5v, LED driver power supply is +5v also. As CIS input signal, minc-Vref values O, MAXC+Vref Values is about 1.2V. SPECIFICATION Readable width Number of sensor elements Resolution Scanning speed Light source 216mm 2552 dots(21~2572 dots available) 75 ms/line 7.5 ms/line Color LEDs Red (640 mm) Green(525mm) Blue(470mm) 1 analogue 18.0 X 12.2 X 231.0 mm (attachment) Data output Outward dimension(WXHXL) PIN FUNCTION DESCRIPTION No. 1 2 3 4 5 6 7 8 9 10 11 12 3-16 Signature SIG GND VDD GND GND SI GND CLK LEDB LEDG LEDR VLED Name signal output Ground Supply voltage Ground Ground Start pulse Ground Clock LED Ground (blue) LED Ground (green) LED Ground (red) Supply voltage Description Video output signal 0V DC ; reference point +5V DC supply (ref. to GND) 0V DC ; reference point 0V DC ; reference point Start pulse 0V DC ; reference point CIS main clock LED POWER SUPPLY BLUE LED POWER SUPPLY GREEN LED POWER SUPPLY RED LED POWER SUPPLY Repair Manual Samsung Electronics CIRCUIT DESCRIPTION ELECTRICAL CHARACTERISTICS (TA=25˚C) Item Power Supply Input Voltage Input Current LED Current Clock Frequency. Clock Pulse “L” Duty Setup Time Hold Time SIG Delay Time Sampling Reriod SYMBOL VDD VLED VIH VIL IIH IIH ILEDr ILEDg ILEDb CLK MIN. 4.75 4.75 3.2 tsu th tpd 1 tpd 2 ts 0 TYP. 5.0 5.0 MAX. 5.25 5.25 UNIT V V V V µA. mA. mA. mA. mA. MHz % ns ns ns ns ns 0.8 20 0.2 30 60 60 2 15 tw/2 tw/2 250 30 90 NOTE SI & CLK SI & CLK REF. REF. REF. tw/to CIS Driver Clock Timing to CLK tsu tw S1 th tpd2 tpd1 SIG ts 1st 2nd Repair Manual Samsung Electronics 3-17 CIRCUIT DESCRIPTION CIS Block Diagram VLED LEDR LEDG LEDB ROD LENS ARRAY VDD GND 1 20 21 SENSOR SHIFT REGISER & ANALOG SWITCH S1 CLK OP AMP SIG 2.5ms ST 1.2ms 1.2ms LED_R OFF ON OFF 1.2ms ON LED_G OFF OFF 1.2ms LED_B ON OFF OFF SIG O/P B O/P R O/P G O/P B O/P R O/P G O/P 7.5ms/line 3-18 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION 3-1-8 HOST INTERFACE: Parallel Port Interface PARALLEL PORT INTERFACE PART KS32C61100 has the Parallel Port Interface Part that enables Parallel Interface with PC. This part is connected to PC through Centronics connector. It generates major control signals that are used to actuate parallel communication. It is comprised of/ERROR, PE, BUSY, /ACK, SLCT, /INIT, /SLCTIN, /AUTOFD and /STB. This part and the PC data transmission method support the method specified in IEEE P1283 Parallel Port Standard (http://www.fapo.com/ieee1284.html). In other words, it supports both compatibility mode (basic print data transmitting method), the nibble mode (4bit data; supports data uploading to PC) and ECP (enhanced capabilities port: 8bits data - high speed two-way data transmission with PC). Compatibility mode is generally referred to as the Centronics mode and this is the protocol used by most PC to transmit data to the printer. ECP mode is an improved protocol for the communication between PC and peripherals such as printer and scanner, and it provides high speed two-way data communication. ECP mode provides two cycles in the two-way data transmission; data cycle and command cycle. The command cycle has two formats; Run-Length Count and Channel Addressing. RLE (Run-Length Count) has high compression rate (64x) and it allows real-time data compression that it is useful for the printer and scanner that need to transmit large raster image that has a series of same data. Channel Addressing was designed to address multiple devices with single structure. For example, like this system, when the fax/printer/scanner have one structure, the parallel port can be used for other purposes while the printer image is being processed.This system uses RLE for high speed data transmission. PC control signals and data send/receive tasks such as PC data printing, high speed uploading of scanned data to PC, upload/download of the fax data to send or receive and monitoring the system control signal and overall system from PC are all processed through this part. Repair Manual Samsung Electronics 3-19 CIRCUIT DESCRIPTION COMPATIBILITY HARDWARE HANDSHAKING TIMING PPD( 7: 0) DATA BUSY nSTROBE nACK ECP HARDWARE HANDSHAKING TIMING (FORWARD) 1 2 3 4 5 6 nSTROBE BUSY PPD( 7: 0) BYTE0 nAUTOFD DATA BYTE BYTE1 COMMAND BYTE 1. The host places data on the data lines and indicates a data cycle by setting nAUTOFD 2. Host asserts nSTROBE low to indicate valid data 3. Peripheral acknowledges host by setting BUSY high 4. Host sets nSTROBE high. This is the edge that should be used to clock the data into the Peripheral 5. Peripheral sets BUSY low to indicate that it is ready for the next byte 6. The cycle repeats, but this time it is a command cycle because nAUTOFD is low 3-20 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION ECP HARDWARE HANDSHAKING TIMING (REVERSE) 1 2 3 4 5 6 7 8 nACK nAUTOFD PPD( 7: 0) BUSY BYTE0 DATA BYTE BYTE1 COMMAND BYTE nINI T PE 1. The host request a reverse channel transfer by setting nINIT low 2. The peripheral signals that it is OK to proceed by setting PE low 3. The peripheral places data on the data lines and indicates a data cycle by setting BUSY high 4. Peripheral asserts nACK low to indicate valid data 5. Host acknowledges by setting nAUTOFD high 6. Peripheral sets nACK high. This is the edge that should be used to clock the data into the host 7. Host sets nAUTOFD low to indicate that it is ready for the next byte 8. The cycle repeats, but this time it is a command cycle because BUSY is low Repair Manual Samsung Electronics 3-21 CIRCUIT DESCRIPTION USB INTERFACE CS RD VVR A0/ALE D[7:0]/AD[7:0] INTR MODE[1:0] RESET Vcc GND Microcontroller Interface Endpoint/Contol FIFOs 48 MHz Status Control RX TX Oscillator Clock XIN XOUT CLKOUT Generator SIE Media Access Controller[MAC] Clock Recovery Physical Layer interface[PHY] USB Event Detect V3.3 Trans ceiver D+ D- VReg AGND Upstream Port • Full-Speed USB Node Device • USB transceiver • 3.3V signal voltage regulator • 48 MHz oscillator circuit • Programmable clock generator • Serial Interface Engine consisting of Physical Layer In-terrace (PHY) and Media Access Controller (MAC), USB Specification 1.0 compliant • Control/Status Register File • USB Function Controller with seven FIFO-based End-points : - One bidirectional Control Endpoint 0 (8bytes) - Three Transmit Endpoints (2*32 and 1*64 bytes) - Three Receive Endpoints (2*32 and 1*64 bytes) • 8-bit parallel interface with two selectable modes : - non-multiplexed - multiplexed (Inter compatible) • DMA support for parallel interface • MICROWIRE/PLUS Interface • 28-pin SO package 3-22 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION NON-MULTIPLEXED MODE INTERFACE BLOCK DIAGRAM CS DATA_IN 0x00 A0 DATA_IN VVR RD DATA_OUT DATA_OUT D[7:0] ADDRESS ADDR 0x3F REGISTERFILE NON-MULTIPLEXED MODE BASIC TIMING DIAGRAM cs A0 RD VVR D[7:0] input out vvrte Address Read Data out Burst Read Data Repair Manual Samsung Electronics 3-23 CIRCUIT DESCRIPTION 3-2 OPE PBA 3-2-1 SUMMARY OPE Board is separated functionally from the main board and operated by the micom(HT48C5A) in the board. OPE and the main use UART (universal asynchronous receiver/transmitter) channel to exchange information. OPE reset can be controlled by the main. OPE micom controls key-scanning and LCD and LED display, detects documents and senses SCAN position. If there occurs an event in OPE (such as key touch and sensor level change), it sends specific codes to the main to respond to the situation and the main analyzes these codes and operates the system. For example, it the main is to display messages in OPE, the main transmits data through UART line to OPE according to the designated format and OPE displays this on LCD, LED. OPE’s sensing is also transmitted to the main through UART line and then the main drives neces- sary operation. OPE PBA consists of U1(MICOM, HT48C5A),LCD, key matrix, LED indicators, SCAN position sensor and the document detect sensor. Refer to OPE Schematic Diagram and Wiring Diagram sections of this manual. • Display from the controller is received at U2 pin 47 (RX DATA). • LCD drive signals are sent from P1-x pin group, P14~P1-14 pins. • Machine status LED drive signals are sent from U2 LED0~LED4. • Document detect sensor output is received at U2 pin 1. • Scan position sensor output is received at U2 pin7 Scan Position Sensor RESONATOR 7.37 MHz 11 Document Detect Sensor MICOM HT48C5A LCD 16x 1Line 7 X Y 8 Key Matrix UART Connector Reset LEDs 3-24 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION 3-3 LIU PBA The LIU (Line Interface Unit) using the discrete method is comprised of the following. (1) Tel_line Interface Circuit that connects the PSTN(exchange) and the system (Facsimile) (2) Telephone circuit composed of dial/speech circuit. 3-3-1 Tel_Line interface Circuit Tel_Line Interface is the path that connects the signals between PSTN(exchange) and the system (Facsimile) and it is comprised of Tel-Line Interface Circuit and Impedance Matching Trans Circuit. (1) TEL_LINE Interface Circuit (2) TRANS Circuit for IMPEDANCE MATCHING 3-3-2 Telephone Circuit (Ringer/Dial/Speech Circuit, etc) The telephone circuit is comprised of ring detect circuit, dialer circuit, speech circuit, external hook detect circuit and recall circuit. (1) Ring Detect Circuit (2) Dialling Circuit (including MF Dialling Signal Transmitting Circuit) (3) Speech Circuit (4) External Hook Detect Circuit (5) Recall Circuit Repair Manual Samsung Electronics 3-25 CIRCUIT DESCRIPTION 3-3-3 Detailed Spec. TEL_LINE INTERFACE CIRCUIT 1) TEL_LINE INTERFACE CIRCUIT • It is an interface that physically connects facsimile to the PSTN (public switching telephone network) through TIP and RING as in fig. 1. • ARS 1-3 protects the system from voltage overload such as the surge coming through PSTN. ARS 2 and ARS 3 are used as overload protection in common mode (between TIP/RING and FRAME GROUND). ARS 1 is used as overload protection in normal mode (between TIN and RING) and it uses ARRESTOR for 600V. However, arrestor’s rated voltage differs from European and USA(400v). • CML (CONNECT MODEM to LINE) RELAY K1 is a switch designed to selectively connect the PSTN to system voice communication path and fax communication path. In STAND_BY MODE and voice communication mode, it is connected to TEL PART and FAX PART while communicating and dialing. • CML Relay (K1): CML relay interfaces with T2(600:600) TRANS in communication mode. • DC Impedance: DC impedance is determined in the DC Feeding Unit. It represents DC characteristic of the computer connected through -48V DC power of the switch and lines. The DC characteristic of required by the communication standards of a number of countries is the DC resistance of 50Ω~300Ω to the current range of 20mA~120mA. (value varies depend on countries). • AC Impedance or Return Loss: AC impedance is determined by the peripheral circuits of T2 Transformer. It is the standard required for optimum signal transmission between computer and switch. When the AC impedance of the computer for AC signal transmission and the AC impedance of the switch matches, the signal can be transmitted without loss. Therefore, communication standards specifies the AC impedance of the computer and it implies the return loss. The communication standards of each country, considering the characteristic of their lines, requires 600Ω or the return loss of 14dB and higher against the AC impedance of Complex and the AC signals of 300Hz~400Hz. The AC impedance of transformer changes depending on the load resistance, the core material, coil inductance and resistance, but generally its characteristic against load resistance is considered. K1 ARS2 TIP to FAX to TEL ARS1 RING ARS3 FG 3-26 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION RINGER DIAL CIRCUIT 1) Ringer Circuit • The ring detect circuit detects the ring signal by sending the bell signal sent from PSTN to the primary photo coupler (PC814). At this point, C(1uF/250V) is used to match the ring impedance and R is coupled directly in order to prevent any damage to the photo coupler due to ring voltage. 2) Dialing Circuit • Dialing circuit is initiated only when the power is on and it is transmitted to line through the modem of main part (T2 trans) 3) External Hook Detect Circuit • In the discrete LIU method, the external hook detect circuit is designed to use both the photo coupler and current detector in order to be used in all countries including the countries with low series resistance (Germany, Switzerland, Belgium, Austria, etc.). To use photo coupler (PC814), you must carefully select the resister connected parallel (75Ω) to the photo coupler in order to satisfy the voltage drop standards of England and a few other countries. The diode connected to the current detector pin (5/6) was used to detect the external hook all through when the line parity turns over. 4) Recall Circuit • In the discrete LIU method, we used the recalling method using low cost photo coupler instead of using photo MOS relay in order to initiate the recalling for handset hook off dialling after the power is turned on. In this case, the time break recall was enabled by switching the power transistor of the telephone circuit using the secondary CPU control. Repair Manual Samsung Electronics 3-27 CIRCUIT DESCRIPTION 3-4 Engine PPA 3-4-1 Engine Configuration 3-4-1-1. Video Controller Board Video Controller Board receives image data from the host computer and converts it into bitmap (binary) image or receives bitmap image directly from the host computer and sends it to the engine controller board. 3-4-1-2. SMPS Board It basically receives AC input and generates ripple-free DC level +5V and -5V +24V. Next, it supplies these voltages to each unit appropriately. It also supplies AC power to heat lamp of fixing unit. 3-4-1-3. HVPS Board HVPS board generates high voltages of THV/MHV/Supply/Dev and supplies them to the developing unit to create images. It is designed to realize optimum conditions for the images. This board includes LSU interface unit and cover open sensing unit that it intercepts +24V voltage to the main motor, LSU, fan, clutch and fixing unit when you open the front cover. 3-4-1-4. Developer Using the digital picture process, developing unit generates visible images. It is comprised of charge roller, OPC drum, developer roller, supply roller and toner. 3-4-1-5. LSU (Laser Scanning Unit) This is controlled by engine controller. Using laser beam control, exposure of OPC drum and the rotational principle of polygon mirror, it forms electro-static latent image in the OPC drum with the video data received from engine. It is the core part of LBP. OPC drum synchronizes with the feeding speed of the paper and rotates. When the laser beam inside LSU reaches at the end of polygon mirror, it generates /HSYNC signal and send it to engine. Then the engine detects /HSYNC signal and adjusts the lengthwise row of the image on the paper. After detecting /HSYNC and after set time period, it sends the video data to LSU to adjust the left margin on the paper. The one side of the polygon mirror is the one line scanned. 3-4-1-6. Transfer Transcribing unit is comprised of PTL(pre-transfer lamp) and transcribing roller. PTL detects the beam of the OPC drum, lowers the electric potential of the developing unit and lower the adhesiveness of toner to enhance transcription coefficient. And the transcribing roller transfers the toner (constituting element of video image) on OPC drum to the paper. 3-4-1-7. Fixer It is comprised of heat lamp, heat roller, pressure roller, thermistor and thermostat. It fixes the toner powder transferred to the paper on the paper using pressure and high heat in order to finish the final printing job. 3-28 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION 3-4-2. Developing Process 3-4-2-1 Feeder Engine operates this unit. Solenoid rotates the feed roller and feeds one paper. Then the paper is fed into the set and hits the actuator of the feed sensor. At this point, the engine detects the signal and prepares to spray according to the image data. If any problem happens to this feed sensor operation, the system displays “paper jam error” on the OP panel. Also, feed sensor unit is closely related to the paper margin. 3-4-2-2. Electrifier This unit electrifies consistent negative voltage to OPC. When the high negative voltage (-1550V) is allowed to charge roller, the OPC drum surface will be consistently electrified with approximately +1300V. This is the first process in generating the digital picture. 3-4-2-3. Exposer After receiving bitmap image data from engine board, LSU turns the laser diode either on or off depending on whether the digital data is present or absent in order to expose the OPC drum with the switched laser beam data. The difference between the voltages generated at this point is presented above. In other words, the part exposed to the laser will have 50V and its relative electric potential will increase and form electrostatic latent image. The part unexposed to the laser as it did not have the video data will consistently retain -800V. Eventually, the image will form in the part electrified and rose to -50V(forms black dot) and the part retaining -800V will be white in order to make the basic condition to form the video data. LSU 2.Charging 3.Exposure 4.Development C/R 7.Fixing 8.Exit EXIT SENSOR OPC D/R S/R 1.Feeding H/R P/R T/R 6.Transfer PTL FEED SENSOR 5.Pre-Transfer < Engine Operating Description > Repair Manual Samsung Electronics 3-29 CIRCUIT DESCRIPTION 3-4-2-4. Developer Unit On the surface where OPC drum and developer roller (rotate in opposite direction) meet, the toner that has negative electric characteristic moves to the exposed part (-50V) due to the electric potential difference, but it will not move to the unexposed part (-800V). 3-4-2-5. Transfer Unit OPC 1.3 KV T/R GND Toner on the OPC drum is transferred to paper by transfer unit. In other words, the toner on the OPC drum surface is inducted by the transfer roller electrified to approximately +1.3KV(600~2800V variable) to the paper. At this point, the voltage (600~2800V variable) is determined by temperature and humidity. The above process is called “transfer”. 3-30 Repair Manual Samsung Electronics CIRCUIT DESCRIPTION Thermistor Heat Lamp Heat Roller Paper Toner Pressure Spring Roller 3-4-2-6. Anchorage unit The toner transferred on to the paper is at the electronically low state and it can be easily scattered. Considering this fact, we used heat (180°C) and pressure (4kg) to fix the toner on the paper permanently. Then the image formed will remain on the paper permanently. Heat roller transfers the heat from the heat lamp inside to the paper. The surface of the heat roller specially coated with Teflon repels toner melted by the heat from the surface. The pressure roller on the bottom of the heat roller is made of silicon resin and its surface is also coated with Teflon. The thermistor of the fixer unit detects the surface temperature of the heat roller and feeds this information back in order to retain 180°C while printing and 135°C, while on standby. The thermostat is used as the secondary safety device and it prevents overheat by shutting the main power when the heat lamp is overheated. 3-4-2-7. Exit After the digital picture process is finished, the printed paper will come out of the set through the exit sensor. The signal detected will be transferred to the engine and provide the position information. If the actuator and the sensor do not work normally, the system will display “Paper Jam 2 Error”. Repair Manual Samsung Electronics 3-31 CIRCUIT DESCRIPTION BIAS OUTPUT UNIT BLOCK DIAGRAM SWITCHING CONTROL UNIT REGULATION CIRCUIT TRANS OUTPUT CIRCUIT MHV-PWM SWITCHING CONTROL UNIT DEV-EA SWITCHING CONTROL UNIT SUPPLY-EA TRANSFER OUTPUT UNIT BLOCK DIAGRAM THVPWM PWM CONTROL UNIT SWITCHING CONTROL UNIT REGULATION CIRCUIT TRANS THV FE E DBACK THVEA SWITCHING CONTROL UNIT TRANS REGULATION CIRCUIT THVREAD THV ENVIRONMENT RECOGNITION CIRCUIT 3-32 FEED BACK Repair Manual Samsung Electronics CIRCUIT DESCRIPTION 3-4-2-8. MHV (Electrification Output Enable) Electrification Output Enable is the electrification output control signal 'PWM-LOW ACTIVE'. When MHV-PWM LOW signal is received, Q401 turns on and the steady voltage will be accepted to the non-inverting terminal of OP-AMP 324. As the voltage higher than the inverting reference voltage of OP-AMP, which is set to R405 and R406, OP-AMP output turns high. This output sends IB to the TRANS auxiliary wire through current-restricting resistance Q402 via R408 and C403 and Q402 turns on. When the current is accepted to Q402, Ic increases to the current proportional to time through the T401 primary coil, and when it reaches the Hfe limit of Q402, it will not retain the "on" state, but will turn to "off". As Q402 turns 'off', TRANS N1 will have counter-electromotive force, discharge energy to the secondary unit, sends current to the load and outputs MHV voltage through the high voltage output enable, which is comprised of Regulation– circuit. T401 24VS MHV OUTPUT C404 3K/471 18V D402 4KV MHV-PWM U2 7407 Q402 D526 R405 220K Q401 A708 24VS R411 2.2K R403 130K R402 82K R412 2K R408 47K + R404 27K C408 104 _ R409 390 C406 3K/471 R416 15M R417 15M KA324 C403 333 R406 2.2K Repair Manual Samsung Electronics 3-33 CIRCUIT DESCRIPTION 3-4-2-9. BIAS (supply/dev output unit) BIAS voltage output is generated only when electrification voltage is set to output. In the circuit presented above, it organizes enough zener-diodes required to output dev/supply voltage from electrification output. Supply voltage is output when the supply-ea signal is 'L'. When supply-ea is 'L', Q104 turns off and as Q105 does not turn on, the electric potential of the output unit retains the electric potential of zener and thus -500V is output as the supply voltage. In case supply-ea signal is 'H', both Q104 and Q105 will turn on and the electric potential of the output unit will not retain the electric potential of zener and become GND level and thus the output voltage will become . The output condition of developer voltage is the same as that of the supply voltage. T401 24VS C404 3K/471 MHV OUTPUT 18V D402 4KV MHV-PWM U2 7407 Q402 D526 R405 220K Q401 A708 24VS C406 3K/471 R416 15M R411 2.2K R403 130K R404 27K R402 82K C408 104 R412 2K _ R417 15M R409 390 KA324 C403 333 R406 2.2K R113 10K 24VS Q107 A1413 R114 33K R117 10K DEV-EA R408 47K + R118 33K R116 2.2K DEV OUTPUT C107 1K/101 ZD401 150V ZD402 150V R115 3.3K ZD403 51V Q106 C3198 R106 10K 24VS Q105 A1413 R107 33K R109 10K SUPPLY-EA R110 2.2K SUPPLY OUTPUT R111 33K C106 1K/101 ZD404 150V ZD405 150V R108 33K ZD406 100V R112 2K 3-34 Q104 C3198 ZD407 100V Repair Manual Samsung Electronics CIRCUIT DESCRIPTION 3-4-2-10. THV(THV(+)/THV(-) Output Unit) Transfer(+) output unit is the transfer output control signal 'PWM-LOW ACTIVE'. When THV-PWM LOW signal is received, Q203 turns on and the steady voltage will be accepted to the non-inverting terminal of OP-AMP 324. As the voltage is higher than the inverting reference voltage of OP-AMP, OP-AMP output turns high. The 24V power adjusts the electric potential to ZD201 and ZD202, sends IB to TRANS auxiliary wire through currentrestricting resistance R215 via R212 and C204, and eventually Q204 will turn on. When the current is accepted to Q402, Ic increases to the current proportional to time through the T201 primary coil, and when it reaches the Hfe limit of Q204, it will not retain the "on" state, but will turn to "off". As Q402 turns 'off', TRANS N1 will have counter-electromotive force, discharge energy to the secondary coil, sends current to the load and outputs THV voltage through the high voltage output enable, which is comprised of Regulation– circuit. The output voltage is determined by the DUTY width. Q203 switches with PWM DUTY cycle to fluctuate the output by fluctuating the OP-AMP non-inverting end VREF electric potential, and the maximum is output at 0% and the minimum, at 100%.Transfer(-) output unit is THV-EA 'L' enable. When THV-EA is 'L', Q302 turns on and the VCE electric potential of Q302 will be formed and sends IB to TRANS auxiliary wire through R311, C305 and VR302 via current-restricting resistance R314, and eventually Q303 will turn on. When the current is accepted to Q303, Q303's Ic increases to the current proportional to time through the T301 primary coil, and when it reaches the Hfe limit of Q303, it will not retain the "on" state, but will turn to "off". As Q303 turns 'off', TRANS N1 will have counter-electromotive force, discharge energy to the secondary coil, send current to load and output THV(-) voltage through the high voltage output enable, which is comprised of Regulation– circuit. 5V 18V 24VS R201 10K #7 TEV-PWM 1 U2 2 3 T201 KAB-007 U2 1 R206 100 R205 1.8K D201 1N4148 5 + VR201 50K 7 U1 R209 100KF R207 2K 24VS C205 2KV68pF R208 30K Q203 A708Y 6 C201 103 C202 121 R210 845KF D202 1N4148 R211 1MF 5 R213 2.2K _ Q204 D526 11 KA324 D205 4KV C207 3KV470pF R218 MGR1/2W100KF R216 SBR306 R212 680K #19 D204 4KV 6 2 + C101 35V47UF #17 C206 3KV470pF 7 C203 472 D203 1N4148 ZD201 ZD202 5.65V 705V C204 333Z R214 2.2K 4 R215 390 R217 SBR207 5V 18V C7 104 ZD1 5.6V #5 TEV-EA 5 18V D301 1N4148 R3 1/2W560 R312 1W56 R309 202K 6 7 U2 7407 R307 33K 24VS KAB-006 T301 Q301 A708Y 1 C306 2KV68pF 18V D-GND 5 C4 103 #24 TEV-READ 8 R310 2.2K R308 33K + 10 U1 _ KA324 R301 470K 9 R302 33K R303 100KF C302 102 R304 389KF D302 1N4148 C303 103 R306 26.1KF C307 3KW470pF Q303 D526 D304 4KV 6 R313 1W56 D303 4KV C308 3KV470pF R315 SBR306 7 2 Q302 A708Y VR302 2K R311 100KF C305 333Z 4 R314 1.7K R305 10KF VR301 5K C304 500V103Z C301 222 Repair Manual Samsung Electronics 3-35 CIRCUIT DESCRIPTION 3-4-2-11. Environment Recognition THV voltage recognizes changes in transfer roller environment and allows the voltage suitable for the environment in order to realize optimum image output. The analog input is converted to digital output by the comparator that recognizes the environmental changes of the transfer roller. It is to allow the right transfer voltage to perform appropriate environmental response considering the environment and the type of paper depending on this digital output by the programs that can be input to the engine controller ROM. For ML-5000 or ML-5200 series, this environment recognition setting is organized as follows: First, set the THV(+) standard voltage. Allow 200MΩ load to transfer output, enable output and set the standard voltage 800V using VR201. Then set 78 (CPU's recognition index value) as the standard using VR302. This standard value with CPU makes sure that the current feedback is 4µA when output voltage is 800V and load is 200MΩ.If the load shows different resistance value when 800V is output, the current feedback will also be different and thus the index value will also be different. according to the index value read by CPU, the transfer voltage output will differ according to the preset transfer table. The changes in transfer output required by each load is controlled by PWM-DUTY. 3-36 Repair Manual Samsung Electronics 4 SCHEMATIC DIAGRAMS 4.Schematic Diagrams 4-1 Main Circuit Diagram (1/6) APOLLO2(MAIN) Repair Manual Samsung Electronics 4-1 SCHEMATIC DIAGRAMS 4-2 Main Circuit Diagram (2/6) APOLLO2(MAIN) 4-2 Repair Manual Samsung Electronics SCHEMATIC DIAGRAMS 4-3 Main Circuit Diagram (3/6) APOLLO2(MAIN) Repair Manual Samsung Electronics 4-3 SCHEMATIC DIAGRAMS 4-4 Main Circuit Diagram (4/6) APOLLO2(MAIN) 4-4 Repair Manual Samsung Electronics SCHEMATIC DIAGRAMS 4-5 Main Circuit Diagram (5/6) APOLLO2(MAIN) Repair Manual Samsung Electronics 4-5 SCHEMATIC DIAGRAMS 4-6 Main Circuit Diagram (6/6) APOLLO2(MAIN) 4-6 Repair Manual Samsung Electronics SCHEMATIC DIAGRAMS 4-7 LIU Circuit Diagram (1/2) APOLLO2(LIU) Repair Manual Samsung Electronics 4-7 SCHEMATIC DIAGRAMS 4-8 LIU Circuit Diagram (2/2) APOLLO2(LIU) 4-8 Repair Manual Samsung Electronics SCHEMATIC DIAGRAMS 4-9 OPE Circuit Diagram U3 CD74HC14MX 10 11 V16 +5V CN1 GILS-5P-S2T2-EF +5V +5V +5V +5V +5V U3 CD74HC14MX 1 2 12 13 C13 10uF C14 100nF 3 V17 R11 200 16V R10 200 R44 200 R45 200 R40 200 R42 200 R41 200 R43 200 R47 200 R46 200 4 GND5 5 +5V +5V C21 2 1 +5V GND5 LED1 SLS-NNGR202TS 2 1 3 100nF +5V R2 22K GND5 LED2 SLS-NNGR202TS Q1 KSA1182-Y R37 22K P1 P1 1 8 +5V R1 2 U3 CD74HC14MX 14 200 1 U3 CD74HC14MXR38 U3 CD74HC14MX Q4 KSA1182-Y 2 3 C15 47pF C1 100pF R34 680 P1 P1 P1 P1 P1 P1 P1 P1 U3 CD74HC14MX X1 38 11 V1 C17 10uF C16 47pF GND5 P1 47 48 12 V2 16V 13 V3 CSA7.37MTZ-TF01 GND5 P1 35 6 37 C12 100nF P1 4 5 7 R35 10K P1 3 9 200 GND5 4 8 GND5 5 9 6 10 7 30 8 31 9 32 10 33 11 18 12 17 13 16 14 15 +5V C18 220pF C19 220pF C20 220pF R39 22K 1 7 D_SCAN D(0) D(1) D(2) D(3) D(4) D(5) D(6) 19 GND5 RXD TMR0 XTAL1 TMR1 XTAL2 LED0 NC1 LED1 NC2 LED2 LED3 NC4 LED4 LCD_RS LED5 LCD_RW LED6 LCD_E 2 D_DET VDD _INT NC3 14 V4 GND5 _RESET TXD LED7 LCD_D0 NC5 LCD_D1 NC6 LCD_D2 NC7 LCD_D3 NC8 LCD_D4 KEY0 LCD_D5 KEY1 LCD_D6 KEY2 LCD_D7 KEY3 SENSOR KEY4 D_DET KEY5 D_SCAN KEY6 VSS KEY7 2 1 LED5 SLS-NNGR202TS Q3 KSA1182-Y Q5 KSA1182-Y GND5 POWER GND5 TONER E-MAIL 36 20 21 3K R15 34 6 3K R49 3K R48 3K R50 3K R51 GND5 D(0) D(1) D(2) D(3) D(4) D(5) D(6) 5 4 3 46 45 44 43 39 40 41 42 V9 D2 MMSD914T1 D1 MMSD914T1 D4 MMSD914T1 D3 MMSD914T1 D5 MMSD914T1 D7 MMSD914T1 D6 MMSD914T1 V10 V11 V12 3 V13 SW1 6 9 # SW4 SW7 SW10 OHD/ V-REQUEST COPY/ REPRINT SW13 SEARCH /DELETE SW19 SW16 +5V V14 V15 22 R7 22K APOLLO2 (OPE) 23 24 2SW2 SW5 1SW3 SW6 8 5 SW8 0 STOP * START/ SW11 SW14 E-MAIL > SW17 SW20 25 R6 22K 26 27 28 4 7 SW9 SW12 SW15 REPORT/ HELP ADVANCED FAX SW21 SW18 29 R5 22K GND5 GND5 LED4 SLS-NNGR202TS 3 GND5 PAPER 2 1 3 Q2 KSA1182-Y GND5 TOLL U2 LED3 SLS-NNGR202TS 3 GND5 KA2-14P8-2.54DSA 2 1 3 HT48R50 GND5 TOLL < SW47 SETUPSW52 SW48 RCV-MODE/ CONTRAST SW53 RECALL SW49 RESOLUTION SW54 05 SW22 10 SW27 15 SW32 20 SW37 SW42 04 SW23 09 SW28 14 SW33 19 SW38 PAPERSW43 REDIAL 03 SW24 08 SW29 13 SW34 18 SW39 POWER SW44 02 SW25 07 SW30 12 SW35 17 01 SW26 06 SW31 11 SW36 16 R4 22K R36 22K +5V R8 22K +5V TONER SW45 SW40 R9 22K R18 300 R19 300 R22 300 R21 300 SW41 R3 22K U4 KPI-L05 1 3 A K 2 D_DET 1 3 2 4 D_SCAN C U5 ITR-9702/F2 E C5 100nF 4 C6 100nF Engineer: Ho-Jin Park Drawn by: SAMSUNG ELECTRONICS Ho-Jin Park R&D CHK: GND5 GND5 GND5 GND5 Size: TITLE: E DOC CTRL CHK: MFG ENGR CHK: Changed by: Son-Hyun Date Changed: Time Changed: QA CHK: APOLLO2 (OPE) REV: 2.0 Drawing Number: Page: 1 Repair Manual Samsung Electronics 4-9 SCHEMATIC DIAGRAMS 4-10 Scan Circuit Diagram (200DPI) APOLLO2(200DPI) 4-10 Repair Manual Samsung Electronics SCHEMATIC DIAGRAMS 4-11 Scan Circuit Diagram (300DPI) APOLLO2(300DPI) Repair Manual Samsung Electronics 4-11 SCHEMATIC DIAGRAMS 4-12 HVPS Circuit Diagram (1/2) 5V 18V T401 KAB-006 Q401 A708-Y R403 110KF 1 R404 33K 12 + 13 MHV-PWM 3 24VS R405 220KF R411 2.2K R422 5.6K R407 240K C402 103 R401 100 Q402 D526-Y 14 4 CN1-#6 R402 56KF U2-B 7407 R412 2K C408 104 C401 331 VR401 50K R501 5.6K BIAS-PWM CN1-#7 1 OPC C403 333 D403 1N4148 R410 1W 3 U2-A 7407 R508 86.6KF 9 R507 27K R502 2.2K R505 100KF R506 86.6KF R504 2K R510 47K C503 104 Q501 A708-Y 2 ZD401 1W 130V 10 - C501 104 VR501 50K R509 12KF T501 T1167 Q502 D526-Y 8 D502 4KV 1 7 5 2 6 R514 MGR1/2W 15MF R417 MGR1/2W 15MF R516 MGR1/2W 50K SUPPLY C506 3KV 471 C505 2KV 680 ZD501 1W 200V 4 + R515 MGR1/2W 6MF R512 430 R511 47K U1-C KA324 C502 222 R416 MGR1/2W 15MF R414 MGR1/2W 6MF 24VS R503 100 C406 3KV 471 D402 4KV 4 18V 5V C405 2KV 680 R409 430 R406 2.2KF C504 333 D501 1N4148 MHV R413 MGR1/2W 6MF 6 R408 47K U1-D KA324 D404 1N4148 R426 MGR1/2W 100KF 7 5 2 - D401 4KV C404 3KV 471 R520 MGR1/2W 9MF R513 1W 3 DEV R519 MGR1/2W 50K R517 MGR1/2W 6MF R518 MGR1/2W 9MF CN1 GIL-S-9P-S2T2-EF 1 2 3 4 5 6 7 8 9 24VS 24V 5V A-GND THV-PWM THV-EA THV-READ MHV-PWM BIAS-PWM D-GND R3 100 Q1 B1151-Y 24VS U3 KA7818 R4 R1 5.6K R2 1K Q2 C1008-Y OUT IN 1W 1K 18V + GND C1 104 C2 104 C3 35V 47uF DONGYANG INSTRUMENTS DESIGNED CHECKED APPROVED TITLE DRW. NO REF. NO APOLLO2 (HVPS) REV. 2.0 J.S.YOUN SIZE A4 4-12 1 OF 2 Repair Manual Samsung Electronics SCHEMATIC DIAGRAMS 4-13 HVPS Circuit Diagram (2/2) T201 HVT-2A 24VS 5V 18V 1 C208 6KV 471 C206 6KV 471 7 D204 6KV R201 10K THV-PWM R206 100 12 13 CN1-#3 11 U2-F 7407 10 R205 1K U2-E 7407 + Q203 A708-Y U1-B KA324 5 C201 103 R209 110KF R207 2K 24VS D201 1N4148 R208 30KF C101 35V 47uF VR201 50K C202 500V 331 6 R210 1/2W 510KF 5 2 Q204 D526-Y + R213 2.2K 7 C205 6KV 101 C207 6KV 471 D207 6KV C209 6KV 471 4 - THV R214 1.2K D202 1N4148 6 D206 6KV D205 6KV R212 470K C203 D203 472 1N4148 ZD201 5.6V R215 430 R216 BR1/2W 30MJ R218 MGR1/2W 100KF C204 473 ZD202 7.5V R217 BR1/2W 200MG 5V R211 1MF CN1-#8 18V 14 R309 2.2K THV-EA 9 T301 KAB-006 Q301 A708-Y C307 3KV 471 1 7 5 2 6 D304 4KV 8 7 CN1-#4 U2-C 7407 R315 BR1/2W 30MJ R307 33K C306 2KV 680 Q303 D526-Y 18V D-GND 24VS D303 4KV C308 3KV 471 4 D301 1N4148 C4 104 4 R308 33K R310 2.2K THV-READ + 1 U1-A KA324 - 2 R302 33K R303 100KF R306 26.1KF R304 200KF 11 R316 1KF CN1-#5 Q302 A708-Y 3 R314 3KF R311 100KF VR302 5K C305 333 C303 333 R317 2KF R305 6.2KF R301 470K C302 102 D302 1N4148 VR301 10K C301 222 C304 500V 103 DONGYANG INSTRUMENTS TITLE DESIGNED CHECKED APPROVED DRW. NO APOLLO2 (HVPS) REV. REF. NO 3.0 SIZE A4 2 OF 2 J.S.YOUN Repair Manual Samsung Electronics 4-13 Contents CONTENTS 1. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 1-1 1-2 1-3 1-4 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Precautions on Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . .1-1 ESD Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 Tools for Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 2. Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 3. Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 3-20 3-21 3-22 3-23 3-24 3-25 3-26 3-27 3-28 3-29 3-30 3-31 3-32 3-33 3-34 3-34 3-36 3-37 3-38 3-39 3-40 3-41 Samsung Electronics General Precautions on Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 Cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 White Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 OPE Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3 ADF Rubber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5 OPE Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6 Lever Sensor Doc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6 Lever Sensor Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6 Scan Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7 Scan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7 ADF Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8 CIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8 Rear Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9 Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10 LSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10 Transfer Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11 Engine Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11 Pick-up Roller Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12 Knock-up Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13 Cap-pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13 Holder-pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14 Motor Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15 Gear Pick-up Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15 Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16 HVPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16 Hook Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17 Fuser Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17 Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18 Halogen Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18 Pressure Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19 Actuator-Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19 Shield Engine Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20 SMPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21 LIU Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21 Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22 Sensor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22 Actuator Empty/Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23 Roller Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24 Contents 4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4-1 4-2 4-3 4-4 4-5 4-6 Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 Tech Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4-2-1 System Data List in TECH MODE . . . . . . . . . . . . . . . . . . . . . . . . . .4-2 4-2-2 Tech Mode Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 4-2-3 Maintenance Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4 4-2-4 Printout Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6 4-2-5 Engine Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6 4-2-6 Maintenance List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8 4-3-1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8 Print Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10 Note for replacing Main board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10 Troubleshooting Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11 5. Exploded Views and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-8 5-9 5-10 Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2 Shield Engine Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4 Engine Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6 Frame Lower Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8 Fuser Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10 Plate-Upper Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12 OPE Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14 Scan Upper Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15 Front Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16 RX Drive Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18 6. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 7. Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1 Samsung Electronics
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.3 Linearized : No Create Date : 2001:09:17 10:43:10 Producer : Acrobat Distiller 4.0 for Macintosh Modify Date : 2001:11:20 10:12:35-05:00 Page Count : 141EXIF Metadata provided by EXIF.tools