Samsung Electronics Co SW248 Internal CD-R/RW Drive User Manual SW 248B E BG68 XXXXXA

Samsung Electronics Co Ltd Internal CD-R/RW Drive SW 248B E BG68 XXXXXA

Contents

Users Manual 1

• Specifications• Cautions at Service• External Part Name• Necessary equipments and Specifications in needingService(P/U replacement)• Exploded Views & Part List• Packing Options• Block Diagram• Troubleshooting• Circuit Diagram• Main Components Block Diagram & Pin Descriptions• Electrical Parts ListThe design and part of this product is subject to change without prior notice for performance improvement.CONTENTSSERVICE ManualSW-248BCD-R/RW DRIVE
11. General Specifications- Drive type : Computer built-in- Power consumption : DC +5V, 1.5ADC +12V, 1.5A- Dimensions : 146mm (W)X42mm (H)X184mm (L)- Net Weight : 750g2. Electrical Features- Interface : ATAPI BUS(IDE)- Data transfer rate : Write(CD-R) : 600KBytes/Sec(4X)1,200KBytes/Sec(8X)1,800KBytes/Sec(12X)2,400KBytes/Sec(16X)3,000KBytes/Sec(20X)3,600KBytes/Sec(24X)4,200KBytes/Sec(28X)4,800KBytes/Sec(32X)Write(CD-RW) : 600KBytes/Sec(4X)Write(High Speed CD-RW) : 600KBytes/Sec(4X)1,500KBytes/Sec(10X)Resd(MAX) : 2,000~6,000KBytes/Sec(CAV 40X)- Access time : 110ms (Random. TYPICAL) - Buffer Capacity : 8Mbyte- Error ratio : Mode 1: Below 10-12Mode 2: Below 10-9- Frequency response : 20Hz~20kHz (Lineout)100Hz~20kHz (H/P out)- Signal to noise ratio : 70dB(1kHz, Lineout)- Distortion factor : 0.15% Less than(1KHz)- Channel separation : 65dB(1kHz, Lineout)55dB(1kHz, H/P out)- Used laser : Semiconductor laser- Audio Output : Line out 0.75 ±20%(Vrms), 47KΩH/P out 0.65 ±20%(Vrms), 33Ω1. General Items1) Be careful not to have your eyes or a part of body touch with-laser diode at repair because this product uses laser diode.2) Do not disassemble Pick-up at repair. If the laser diode isbad, replace the entire Pick-up.3) Keep away from TV or other electrical units at repair to prevent influence from surrounding units.4) If you replace the parts during repair, be sure to unplug the power cable before replacement.5) If you insert a disc into the drive, be sure to load it corectly.6) Because this unit can't be used by itself, surely mount it on PC (586 DMA support) and check the operations in use of private device driver floppy diskette. Refer to Instruction manual.7) This unit has many parts with features related to safety andespecially, for essential parts, the importance is indicated on circuit diagram and part list. Be certain to use the parts with same specifications at replaing these parts.2. Earthing cautions at handling Pick-up- Because the laser diode in optical Pick-up is subject to get out of order due to the potential difference occurring by electricity load charged in clothes or bodies, observe thefollowing earthing items at handling.1) Body earthing(hand) : Be sure to wear a wrist strip with one side earthed.(Impedance : Below 104).It removes the electricity formed in body. 2) Work table earthing : Put the earthed conductive plate(Impedance : Below 104) such as copper plate on work table.3) Cautions for clothes : Do not have any clothes touch withPick-up because the electricity formed in clothes isdestroyed easily.SpecificationsCautions at Service
2Electricity sensing deviceSafety instructionsSome semiconductor units may be damaged easily byelectricity.These elements are called as electricity sensingdevice(ESD) in general. For example, integrated circuit,field effect transister, semiconductor chip.The following methods have to be used to reduce theaccident of element damage generated by electricity.1) Emit all electric charges in your body through contactwith earthing materail at once before handling asemiconductor factor or device including it.In other way, make use of commercial wristlet againstelectricity It shall be detached before power impression to theunit on testing because of shock.2) After detaching an electrical device including ESD, itshall be placed on conductive surface such asaluminium to prevent the charge acummulation andunit exposure.3) Utilize only the soldering iron with earthed end forESD soldering or release4) Make use of only anti-static soldering release unit.A soldering release unit not to be classified asantistatic may generate the enough charge to damageESD unit.5) Never use a Freon-propelling chemical product.It may generate the enough charge to damage ESD.6) Untill installing ESD unit for replacement, never it fromprotection package.(Most of ESD unit for replacement have leadcomposed of package shorted electrically byconductive foam, aluminium or similar conductivematerial.)7) Contact with shassis including ESD or protectionmaterial in circuit parts just before detaching theprotection material from lead of ESD unit for replacement 8) Minimize the body action at handling an unpackedESD unit for replacement.(Otherwise, an unconscious action, so to speak,friction between clothes or foot lifting from carpet floormay generate the enough charge to damage ESDunit.)Note : Be sure to avoid the power impression to theshassis or circuit and observe the safety instruction.1) Read all safety and operational manuals beforeoperating this product2) Keep the safety and operational manuals for futurereference.3) Observe all precations and operational instructions inor on the surface of this product.4) Follow all operation and maintenance cautions.5) Be sure to plug off the power cable before cleaning.Use a dry cloth to clean a dusty cover of cabinetinstead of liquid or aersol cleaner.6) Never use a attachment not to be recommended bythis company. It may result in danger and damage.7) Never use this product around water such asbathtub, washbasin, laundry machine, swimming poolor lakeside.8) Never place this product on bed, sofa or aroundradiator and heater.9) Power : Utilize the only power displayed on lebelIf the power type can't be checked, call to dealer orKorea Electricity, Co, Ltd. Refer tooperate this productby battery or other power.10) Lightning : Plug off the power cable for productprotection during thunder and lightning flashes or thisproduct is unused for a long time.11) Overload : Be careful that the wall outlet andexpanded cord is overloaded due to danger of fireand electrical shock.12) Never insert a substance or liquid into this product.It may cause fire or shorck by contact with voltagepoint or short.13) Part replacement : The service engineer has to usethe parts of same specification at replacement.Otherwire, fire, shock or other dangers may beoccurred.14) Safety check : Be sure to perform the safety checkat service or repair completionImportance : This product includes special impotrantparts on safety.These parts are indicated by on schematicdiagram.At replacement of these parts, use theparts of same specification due to shock,fire or other dangers.Never transform the original design withoutpermission of this company.
31. Front2. RearDigital output terminal(Optional)Sound output terminalMaster/Slave select pinInterfaceterminal Power terminalExternal Part NameEarphhone jackStop/OpenbuttonEmergencyHOLEUp/Down VolumeLEDDisc tray
4Disassembly Diagram
5Device Part ListPART NAME CODE No SPECFICATIONASSY DECK BG97-02248A -BG60-00009A 1.SCREW TITE M1.7*5(10)LOADING BG97-02250A 1.ASSY LOADING -BG61-00203A 1.MAIN FRAME HIPS(HG1760S)BG66-00061A 2.GEAR TRAY POM(F20-03)BG66-00032A 3.GEAR PULLEY POM(F20-03)BG66-00044A 4.BELT PULLEY CR-70(BLK 1.3t)BG97-00789A 5.ASSY LOADING M/T -BG31-00027A - LOADING MOTOR RF-300CH-11440 ¿ÜBG66-00033A - PULLEY MOTOR POM(F20-03)BG66-00034A 6.LEVER EJECT POM(F20-03)BG66-00062A 7.SLIDE CAM KOCETAL(K700)TRAY DISC BG66-00060A 1.TRAY DISC ABS ( SR-0320D )FEEDING BG97-02251A 1.ASSY FEEDING -BG61-00078A 1.SUB CHASSIS ABS(GF20%)BG73-00012A 2.RUBBER-INSULATOR BUTHYL 25HsBG73-00027A 3.RUBBER-INSULATOR BUTHYL 25HsBG61-00238A 4.MAIN BASE M SECC+POMBG61-00237A - MAIN BASE P SECC 2.0TBG31-00025A 5.ASSY STEP M/T “SPS-15RF-054K, P4.5mm”BG61-00180A 6.GUIDE PU POM(NW-02)BG61-00122A 7.SHAFT PU R “SUS420J2,¥õ3.0,L85.5mm”BG31-00036A 8.MOTOR SPINDLE “RSM-2615A,DMBSPC75A”- FFC-SPM 15 PINBG97-02247A 9. ASSY TURN TABLE -BG59-00017A TURN TABLE ABS ADC12BG63-00084A COVER T/T ABS SN PLATE T0.6BG59-00018A TURN TABLE BALL “STEEL ¥Õ2.5,11EA”BG73-00026A RUBBER-T/T ABS CR(NEO-B-6150)BG59-00019A MAGNET T1.5BG61-00018A BRKT-T/T SECC T1.0BG30-00025A 10.PICK-UP SW-232BBG41-00184A 11.EFFC PU “32 PIN (P0.5),88mm”BG97-01729A 12.ASSY SLIDER STEP -BG66-00052A - SLIDE STEP POM(NW-02)BG61-00225A - SPRING STEP SUS 304-WPBBG61-20031A 13.HOLDER CAM POM(M90-44)AH60-10145A 14.SCREW TITE M1.7*5(5.5)AC60-10074A 15.SCREW TITE M2.6*66001-001348 16.SCREW M1.7*3.56003-001260 17.SCREW TITE M1.7*4.0*3.5BG69-00127A 18.PAD-DECK PORON LE-20 2TBG73-00022A 19.RUBBER-DVA SILICON 25µµBG61-00178A 20.PLA-VIB/ABSORBER SECC 2TETC 3409-001138 -.SWITCH DETECTORBG63-00052A -.SHEET PU PVC FILM 0.85TBG41-00182A -.FFC MAIN 13 PIN- -.OIL EP-100- -.GREASE KG-110- -.GREASE G-754
6Disassembly and assemblyDoor-tray Exterior and PCB disassemblyFigure - Door-tray1) Supply power to open the tray¶Êin direction of arrow “A”2) Lift up the door¶Â in direction of arrow “B”3) Close the tray¶Êand power off.Reference : If the tray¶Êdoesn't open, push the clip3 into specified hole shown in detailed figure to openit compulsorily.
7Disassembly and assemblyPanel-frontExterior and PCB disassembly1) Remove 6 hooks¶Â 2) Take out the panel-front¶Êforward.Figure - Panel-front
8Disassembly and assemblyTop-cabinetExterior and PCB disassemblyFigure - Top-cabinet1) Remove 4screws¶Â in the bottom2) Lift up the top-cabinet ¶Ê
9Disassembly and assemblyAss'y-frame LowExterior and PCB disassemblyFigure - Ass'y-frame Low1) Lift up the ass’y frame¶Ê low
10Disassembly and assemblyMAIN-PCBExterior and PCB disassemblyFigure - Disassembly connector1) Disassemble the PICK-UP FPC¶Â in PCB.2) Disassemble the FFC¶Êbetween Main PCB and Front PCB.3) Disassemble the FFC¶Ábetween Main PCB and Front PCB.4) Push 2hooks¶Ëfor PCB fixing in deck.5) Disassemble the MAIN-PCB¶È6) Remove soldering at motor connection wire¶ÍPCB.7) Press 2hooks¶Îfor PCB fixing in deck and Disassemble the FRONT-PCB
11Disassembly and assemblyTrayDeck disassemblyFigure - Tray1) Push 2hooks¶Â.2) Take out the Tray¶Êin direction of arrow.
12Disassembly and assemblyAss’y-Deck Deck disassemblyFigure - Ass’y-Deck 1) Move the slide cam¶Â in left direction.2) Remove screws¶Ê.3) Disassemble the Ass’y-feeding ¶Áin arrow “B” direction with pushing the 2hooks in direction of arrow “A”
13Packing Diagram and Part ListNO CODE-NO DESCRIPTION SPECIFICATION Q’TY1 BG69-00146A MASTER CATON-BOX DM 3 1/8EA2 BG69-00147A PACKING-CASE SW-224B/DOM SW-1 MANILA 240g 1EA3 BG69-00034A CUSHION-SET EPS 2EA4 BG69-30305A BAG-PE T0.05 2EA5 BG46-00024A S-W UTILITY 1EA6 BG68-00352A MANUAL USERS 1EA7 BG95-50004A ASSY-SCREW 1EA8 BG60-12001H SCREW-MACHINE M3 * 6 1EA9 BG39-30002A BAG-PE 1EA10 BG39-00010A CABLE-IF SR 380MM 1EA11 BG39-42001B CABLE-WIRE HARNESS 4P, 3P, N, UL2547/UL 1061 4EA12 BG69-30307A BAG-PE T0.05 1EA13 0203-001222 TAPE-MASKING PP-BEING 0.34M14 BG68-00355A LABEL-RATING SW-224B/DOM, ART PAPER 1EA15 BG68-50005A LABEL-QMS ART PAPER 1EA16 BG68-00296C LABEL-BAR CODE DOM MODEL, ART PAPER 1/8EA17 BG68-00327A LABEL-BROKEN ART PAPER 1EAASS’Y
14Block Diagram
15Trouble ShootingCheck the power source and initial state.Is electrity of 5V and 12V normally inputafter the connecting the power cable ?YDo RL3E804, RL5E935 oscillate ?YDose the voltage of the 1pin of IC502 change from 3.3V ?YIs electricity of 2.5V normally output from the 3pin of IC503?YWhen you transfer the PICK-UPto the outer cycle, and turn the power on, dose it move to the inner one?YTRAY IN / OUT ?YRefer to ‘NO SLED operation’Refer to ‘Check TRAY IN / OUT’Refer to ‘check LASER DIODE ON’LASER DIODE ON ?Check the connection of the power short and cable.If the power of RL3E804, RL5E935 is normal when you check, replace X201, X301.NNIf the power of ICIC502 (3pin) is normalwhen you check, replace IC502.If the power of IC503 (2pin) 5V is normalwhen you check, replace IC503.NNNNN
16FOCUS UP / DOWN ?YFOCUS LOCK ?YDISC rotation ?YSPINDLE LOCK ?YAUDIO OUTPUT ?YWRITING Normall ?Refer to ‘ FOCUS LOCK ’NNNNNRefer to ‘ NO DISC ROTATION ’NRefer to ‘ NO AUDIO OUTPUT ’NRefer to ‘ NO WRITING ’N
17When you transfer the pick-up to the outercycle and turn the power on, dose thepick-up move to the inner one ?SLED operation of normal.If the constant of IC301 and GND, pattern’swhen you check, replace. YYNNIf the constant of IC401 and GND, pattern’s when you check, replace. NThe below waveform is outputted in IC301 1, 99pin ?YYReplace stepping Motor.YThe below waveform is outputted in IC401 35, 37pin ?YNo SLED OPERATION
18Is the connector properlyinserted into CN30 ? Try the operation after inserting theconnector to CN3 properly.Check the SW701 patterns and thewelding condition.Replace it if thecondition is normal.YNNCheck the SW701 Open and Closepatterns and the welding condition.Replace it if the condition is normal.NCheck the condition and patterns ofR409, R410.If they are normal,replace IC401.NWhen pressing the EJECT SW, does the IC401 Pin26 vary from 1.65Vto the value between 1.15V and 2.15Vand then show 0V finally?NIs the Tray Motor able to output thePin49 and 50 of IC401?Replace TRAY MOTER.YWhen pressing the EJECT SW,does the peak value of theIC301 3Pin become 3.3V?YWhen it is in the Tray Open mode,does the IC301 6Pin show 1.65V?YWhen pressing the EJECT SW, does theIC401 Pin26 vary from 0V to the valuebetween1.15V and 2.15V and then show1.65V finally?NYYYNo Tray open / close operationOPEN CLOSE
19Is the connector inserted normally into the CN10?YIsn’t there any problem with the FPC Wire ?YWhen the SLED is moved to the inner circle, is electricity of about 1.65V output from the 80pin of IC101 ?YIs electricity of about 1.65V input through 71pin of CN101 ?YReplace PICK -UP.No LASER DIODE ONTry again after a normal insertion of the connector into CN10.NTry again after replace of FPC Wire.NIf the pattern of IC101 and sodering is normal when you checked, replace IC301. If the time transfer 71pin of IC101 and soldering are ok is when you checkedreplace IC101 NNThe value of voltage can be modified slightly, depending on the result of power calibration or the media.
20CH 2 : Focus Up / Down FECH 3 : S curveCH 4 : Focus Servo OnIf the power of IC101 and GND, solderingis normal when you check, replace IC101.If the power of IC201 and GND, solderingis normal when you check, replace IC401.If the power of IC201 and GND, constant is normal when you check, replace IC201.The below waveform(CH B) is outputted in ICIC401 45, 46pin ?FOCUS UP / DOWN ?Dose the S-curve below come out of the76(TP:FE)pin of IC101after insertion of a disc ?Is the waveform above input through the 128pin of IC201 ?YYIf the power of IC201 and GND, solderingis normal when you check, replace IC201.NNThe below waveform(CH B) is outputted in IC201 132pin ?NNNNY1. Is the FPC Wire inserted normally into the CN10?2. Isn’t the FPC wire disconnected ?Y1. Try again after a normal insertion of the connector into FPC Wire.2. Try again after replace of FPC Wire.Replace Pick-up.YYNo FOCUS LOCK
21If the power of IC201 and pattern’s, soldering is normal when you check, replace IC201.Is the waveform below output through 140pin of IC201 ?YNYIs the waveform above input through 24pin of IC401 ?YDoes output but spindle Motor rotate ? Replace MOTOR.YYNIf the power of IC401 and pattern’s,soldering is normal when you check, replace IC401.NNNNo SPINDLE MOTOR ROTATION
Replay of AUDIO after insertion of AUDIO DISC ?YIs the audio output from the 164, 167pin of IC201 ? If the power of IC401, GND, soldering is normal when you check, replace IC200.YIs the audio output from the 11, 13pin of CN30 ?YIs the audio input from the JK701 ?YCheck the connection of the JK701 is and normal when you checked, replace JK701.No AUDIO OUTPUT22NReplace FRONT PCBNCheck the connection of the CN30 is and normal when you checked, replace VR701.N
No WRITING23Can WLT216B.EXE beexecuted properly?When you try to write the recordsagain,does it work properly?Was the Power Calibrationexecuted properly?When writing the records,does thevoltage at the PIN 20 (XWGATE)of CN10 decrease from 5V to 0V?NCheck the condition of thepower at CN10, GND and the welded part.If they are normal, replace IC101.NNYYYReplace P/UP or the entire MECHA.N
24Circuit DiagramMain
25Circuit DiagramFront

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