ATARI 2600/2600A VCS Domestic Field Service Manual; FD100133, Rev.02 Atari_2600_VCS_Domestic_Field_Service_Manual 2600 Manual
User Manual: Atari_2600_VCS_Domestic_Field_Service_Manual
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2600/2600 A VCS DOMESTIC (MD Field Service Manual FD100133 Rev. 02 E.C.R. JR ATAR~ ATARI, INC. consumer P r o d u c t Services 845 W. Maude Avenue Sunnyvale, CA 94041 0021 ENGINEERING CHANGE REQUEST Lat e s t DATE o~------ REQUESTER 1-21 - 8 3 P A R T TITLE 2 6 0 0 / 2 6 0 0 A VCS DSMZSTIC FSM REASON I Error Xeplace pages 4-25, NO. S . Doyle FOR PART NO. F i l l 00133 R EV. 02 CHANGE REQUEST: in Flowcharts and P a r t s Lists 6-21, 8-3 and 8-7 with t h e attached corrected pages. R e ~ l a c ec o v e r page with new (Rev. 0 2 ) cover page. Retain this ECN as a record of these changes. ENGINEERING (SEE CHANGE D ~ s REQUESTER- ~ H / ~ PLEASE ~ l a COMPLETE ~ SIGNATURES A N 0 LC.N. BECOMES A N E.C.N. NO. ARE DOTTED LINE * * * * * * ****-• = - ) ENGINEERING CHANGE NOTICE WHEN E.C. R. ABOVE PRESENT THIS I EmC,Nm NO. 0021 I ATARI VIDEO COMPUTER SYSTEMTM FIELD SERVICE MANUAL MODEL 2600/2600A DOMESTIC (M/N) A t a r i believes t h a t t h e information described in this manual is a c c u r a t e a n d reliable, and much c a r e h a s been taken in its preparation. However, no responsibility, financial or otherwise, shall b e a c c e p t e d for any consequences arising o u t of t h e use of this material. Information contained herein is subject to change. Revisions may be issued t o advise of such changes and/or additions. Correspondence regarding t h i s d o c u m e n t should b e forwarded to Manager of Technical Support, Consumer Product Service, Atari, Incorporated, 845 W. Maude Sunnyvale, California 94086. 2600/2600A Domestic VCS Table of Contents P Section Title - Page INTRODUCTION THEORY OF OPERATION Introduction Overview Game Console Outer Casting Switchboard :Motherboard 2600A Model Differences - All Revisions 2600A Model Differences - Revisions 14 and 15 2600A Model Differences - Revisions 16 and up Summary 2 SCHEMATICS AND SILKSCREENS 3 TESTING AND TROUBLESHOOTING Equipment Requirements Test Procedures and Methods 2600 Model Modifications 2600A Model Modifications Testing with the Diagnostic Test Cartridge (Version 2.6) Initialization RAM Test Color Bar Test Gray Bar Test magnostic Matrix Test Audio Tones Test Paddle Control Lines Test 2600 DIAGNOSTIC FLOWCHART SYMPTOM CHECKLIST 2600 Symptom Checklist 2600A Symptom Checklist 2600A DIAGNOSTIC FLOWCHART GAME CONTROLLERS Overview Joystick (X-Y)Controller Joystick (X-Y)Controller Check Paddle Controller Paddle Controller Check Driving Controller Driving Controller Check Keyboard Controller Keyboard Controller Check ATARI CX2600 (M/N) PARTS LIST ATARI CX2600A (M/N) PARTS LIST iii 2600/2600A Domestic VCS Table of h n t e n t s Section Title - Page 9 SERVICE BULLETINS 9-1 List of Illustrations Figure Title - Page 2600 Functional Diagram 2600 Game Console 2600 Switchboard and Motherboard Assembly TV Switchbox 2600A G a m e Console 2600A Board Layout 2600/2600A IC Pinouts 2600 Motherboard Silkscreen 2600 Channel 3 Switchboard Silkscreen 2600 Channel 3 Switchboard Schematic 2600 Channel 2-3 Switchboard Silkscreen 2600 Channel 2-3 Switchboard Schematic 2600A Motherboard Silkscreen (Revs. 1-1 3 ) 2600A Motherboard Silkscreen (Revs. 14 and 15) 2600A Motherboard Silkscreen (Revs. 16 and up) Inserted in Front Pocket of Notebook: 2600 Motherboard Schematic 2600A Motherboard Schematic (Revs. 1-1 3) 2600A Motherboard Schematic (Revs. 14 and 15) 2600A Motherboard Schematic (Revs. 16 and up) 2600 Trigger Circuitry with Static Modification 2600 S t a t i c Modification Zener Diode Location of Colored Dot Over T r a c e 2600 Switchboard Static Modification 2600A (Revs. 1-1 3 ) Static Modifications Switch Initialization Positions Defective R A M P a t t e r n s Color Bars Screen Grav Bars Screen ~ i a g n o s t i cMatrix Screen (Shorting Plugs OUT) Diagnostic Matrix Screen (Shorting Plugs IN) Audio Tone Test Screens iv 2600/2600A Domestic VCS List of Illustrations (Continued) Figure Page Title Switch Initialization Positions Color Bars Screen Defective RAM Patterns Gray Bars Screen Defective Gray Bars Screen Diagnostic Matrix Screen (Shorting Plugs OUT) Diagnostic Matrix Screen (Shorting Plugs IN) Diagnostic Matrix Screen with Defective Pattern Audio Tone Test Screens RC Waveforms STC Address Line Waveforms STC Data Line Waveforms Joystick (X-Y)Controller Joystick (X-Y)Schematic Paddle Con troller Paddle Confroller Schema t i c Driving Controller Driving Controller Schematic Keyboard Controller Keyboard 'Xriring Diagram Keyboard Schematic 4 List of Tables Table - ~iile Page 4-1 Connected Pins on VCS Motherboard 4-47 2600/2600A Domestic VCS INTRODUCTION The Video Computer systemT' sections: (VCS) Field Service Manual is organized in nine - overview of a THEORY OF OPERATION basic assemblies look like. a SILKSCREENS AND SCHEMATICS - e l e c t r i c a l drawings and layouts of t h e printed c i r c u i t boards. a TESTING AND TROUBLESHOOTING testing and repairing t h e VCS unit. 0 0 SYMPTOM CHECKLIST - for the experienced technician, a list of t h e high failure parts and t h e flowchart entry point for t h a t particular problem. DIAGNOSTIC FLOWCHART - thorough flowchart enabling t h e technician t o test and troubleshoot a d e f e c t i v e 2600A unit. 2600A a GAME CONTROLLERS a overview of t h e procedures for 2600 DIAGNOSTIC FLOWCHART - thorough flowchart enabling t h e technician t o test and troubleshoot a d e f e c t i v e 2600 unit. a .a - how t h e VCS works and w h a t t h e - overview of hand controller construction with electrical schematics and recommended test and repair procedures. PARTS LIST 2600A . - detailed breakdown of all p a r t s used in both t h e 2600 and SERVICE BULLETINS - section t o b e used t o hold service bulletins released by the Manager of Technical Support. These bulletins will include c h a n g e s in recommended repair procedures and required modifications for units in t h e field. T h e manual is designed for use by both experienced and inexperienced s e r v i c e personnel. The Diagnostic Flowcharts (Sections 4 and 6) provide detailed diagnostic and repair procedures for technicians who a r e not y e t completely familiar with t h e VCS. The Symptom Checklist (Section 5 ) provides a f a s t repair reference for t h e m o r e experienced technician. 2600/2600A Domestic V C S SECTION 1 THEORY OF OPERATION There a r e currently four types of ATARI Video Computer Systems. The original model (2600) is composed of two PC Boards connected by a 12-pin ribbon cable with t h e motherboard surrounded by a heavy aluminum casting. The other models (2600A: Revisions 1-13, Revisions 14-15, and Revisions 16 and up) a r e composed of a single board with a light aluminum shield. The single board models differ slightly in the video output circuitry. Component differences are: Revisions 1-1 3 have no diodes on TIA lines LA41 and Sync. a Revisions 14-15 have diodes and pull-up resistors on TIA lines LMl and Sync. e Revisions 16 and up include the above mentioned diodes and resistors as well a s a timer chip. The revision level is etched directly on the PC board. OVERVIEW The ATARI Video Computer System (VCS) Models 2600/2600A a r e state-of-the-art microcomputers. They receive instructions for t h e operation of different games from individual Read-Only-Memory game cartridges and interpret data from t h e players' hand-held controllers. They also allow game players t o select both a specific version of each game and t h e player difficulty (on a per player basis). Figure 1-1 is a block diagram of t h e functional flow of t h e VCS Model 2600. Section 7 describes t h e player controllers. - . brar Ellmcutor (AX, A d w m r t 1 2 0 VAC Figure 1 -1. 2600 Functional Diagram 2600/2600A Domestic V C S GAME CONSOLE The VCS game console is composed of an outercasting t h a t houses the switchboard and the R F radiation shielded motherboard. Outer C a s t inq The casting consists of t h r e e pieces of plastic (see Figure 1-2). The pieces include t h e base, which holds t h e switchboard and motherboard assembly; the top; and t h e bezel. Figure 1-2. 2600 Game Console 2600/2600A Domestic VCS Switchboard The switchboard assembly holds t h e player option switches, t h e power supply, and t h e RF modulator (See Figure 1-3). 0 PLAYER OPTION SWITCHES Switches SlOL thru SL04 a r e double-pole, single-throw. Switches SL05 and 5106 a r e double-pole, double-throw. All switches a r e connected between t h e switchboard and t h e motherboard by 1 2-conductor flexible ribbon cable. POWER SUPPLY The power supply is composed of a +5 voltage regulator, filter capacitors, and t h e power on/off switch. Unregulated D C is supplied t o t h e board f r o m t h e battery eliminator. A supply of +5 volts is routed through a f i l t e r circuit t o t h e R F modulator. The motherboard also receives i t s power (+5 volts Vcc) from t h e switchboard via t h e s a m e 12-conductor ribbon c a b l e referenced above. 0 RF MODULATOR The R F modulator. converts t h e signal received from t h e Television Interface Adaptor chip on the motherboard t o a frequency t h a t a television can receive and interpret. D a t a between t h e R F module and t h e Television Interface Adaptor chip is passed via t h e 12-conductor ribbon cable which connects t h e motherboard to t h e switchboard. A coaxial cable passes t h i s siqnal from t h e RF module to the switch box mounted on t h e bac!c of t h e television. Ilarq(Amml v mchm mrd hm.r.1~ Figure 1-3. 2600 Switchboard and Motherboard Assembly 1-3 2600/2600A Domestic VCS Motherboard T h e motherboard is composed of a PC board containing a microprocessor (MPU) chip, a combination Random Access Memory - Input/Output (RAM-110) chip, and a Television The board also contains numerous Interface Adaptor (TIA) chip (see Figure 1-3). capacirors, resistors, transistors, and other assorted electronic components. These p a r t s a r e all listed in Section 8, PARTS LIST. a MICROPROCESSOR CHIP The heart of t h e VCS is t h e 6507 microprocessor chip (MPU). This device makes decisions for the VCS based upon information i t receives from t h e game cartridge and t h e RAM-I/O (discussed in t h e next paragraph). RANDOM ACCESS MEMORY-INPUT/OUTPUT CHIP Temporary storage of d a t a from the MPU is provided by t h e 6532 Random Access ~ e m o r y - I n p u t / O u t p u t (RAM-1/01 chip. This chip also scans the option switches and t h e joystick 1 / 0 lines for information and maintains time accounting for t h e MPU. 0 TELEVISION INTERFACE ADAPTOR CHIP This ATARI proprietary chip generates audio and video signals which a r e required by t h e RF modulator. The Television Interface Adaptor (TIA) chip also contains t h e analog-to-digital converter circuitry t h a t allows the MPU t o understand signals originating in t h e h a n d h e l d paddle controllers. TIA outputs a r e processed by additional circuitry into a composite video, sound, and color signal which is routed to t h e RF module on t h e switchboard via t h e 12-conductor ribbon cable. The RF module converts the composite signal t o a R F signal acceptable t o t h e television. A coaxial cable transmits this R F signal from t h e console t o a selection box t h a t can be mounted on t h e T.V. This switchbox (Figure 1-41 allows you to display either a signal received by t h e antenna (for normal T.V. viewing) or a signal from t h e VCS (for playing a game). Figure 1-4. TV Switchbox 1-4 2600/2600A Domestic VCS 2600A MODEL DIFFERENCES - ALL REVISIONS The major difference between the newer single board VCS (2600A) and t h e original VCS (2600) is t h a t all of t h e components formerly on t h e switchboard a r e now located on the motherboard (See Figure 1-5). This includes the player control function switches (Power ON/OFF, COLOR/BW, GAME SELECT and GAME RESET), RF modulator and power supply circuitry. The single board design eliminates t h e need for t h e ribbon cable, which connected t h e switchboard t o t h e motherboard on t h e 2600 VCS. Gone, too, a r e the luminescence and RF output buffers and t h e two TIA input buffers, a l l of which were contained in chip A203. In t h e oscillator circuit, one of t h e transistors and its associated network has been eliminated and R227-R230 (paddle control lines) are no longer present. C239, going t o pin 7 on J202 and 3203, has been replaced by C236 and C237 (See Figure 1-6). Figure 1-5. 2600A G a m e Console 2600/2600A Domestic VCS Figure 1-6. 2600A Board Layout (Revs 1-13) In addition to the component changes, t h e physical location of several parts has also been changed. Instead of having t h e right and l e f t difficulty switches placed on top of t h e game, they a r e located at t h e rear of the console next t o t h e game controller plugs. The channel selector switch is also located at t h e rear of t h e console. The game cartridge socket is no longer angled, but is mounted vertically on t h e board. 2600A MODEL DIFFERENCES - REVISIONS 14 AND 15 Revisions 14 and 15 contain t h e model differences described above, and in addition have new components on t h e TIA lines, LM1 and Sync. There a r e t w o IN914 diodes t o prevent feedback on t h e lines and two additional pull-up resistors t o insure the signal is a t +5v. To compensate for any signal loss, R215 and 217 have been changed t o 47K (R215) and 24K (R217). 2600A MODEL DIFFERENCES - REVISIONS 14 A N D UP Revisions 16 and up contain the model differences described above; they also include a t i m e r chip (A205)added to t h e r e s e t circuitry of t h e MPU chip. This chip eliminates t h e problem of power-on reset failures. 2600/2600A Domestic VCS SUMMARY The VCS is a microcomputer t h a t receives its operational instructions from s a m e cartridges, the game console, and player controllers. The 2600 switchboard and motherboard assemblies a r e housed within an o u t e r casting and a r e t h e principle assemblies addressed in t h e remainder of this manual. The boards a r e connected by a 12-conductor ribbon cable which passes not only power, but also d a t a between t h e t w o boards. Three chips of t h e n o t h e r b o a r d allow for t h e interaction between t h e game and t h e player. These chips a r e t h e microprocessor (MPU), t h e Random Access MemoryInput/Output (RAM I/O), and the Television Interface Adapter (TIA) chips. The 2600A model differs primarily in t h e location of the components formerly located on t h e switchboard. They a r e a t t a c h e d directly t o t h e motherboard and eliminate t h e need for t h e switchboard and the ribbon cable. The 2600A Revisions 14 and up include even further additional components to improve t h e performance of t h e o u t p u t circuitry. 2600/2600A Domestic VCS SECTION 2 SILKSCREENS AND SCHEMATICS On t h e following pages are representative silkscreens and switchboard schematics for t h e ATARI Video Computer System. The motherboard schematics for all 2600/2600A VCS models a r e located in t h e pocket at t h e f r o n t of this binder. Minor variations in design may be encountered depending on t h e production date of t h e game, but these schematics provide all details required for an in-depth understanding of all 2600 units, including the various 2600 A model revisions.. 2600/2600A Domestic VCS VOLTAGE REGULATOR (Tap View) NAT. L.kt3kO T.I. 78MC5C A203 (Top View) win version (Channel 2 or 3) RF Mod. Figure 2-1. RF Moduiator (TOOView) 2600/2600A IC Pinouts 2600/2600A Domestic VCS Figure 2-2. 2600 Motherboard Silkscreen 2600/2600A Domestic VCS The following variations may appear on t h e 2600 switchboard: CHANNEL 3 SWITCHBOARD: C102 may or may not be in place. C103 and/or C104 may or may not be in place. C103 and/or ClO4 may be mylar dipped .22 uf. C103 and/or ClO4 may be c e r a m i c .Oluf (See Figures 2-3 and 2-4). CHANNEL 2 OR 3 SWITCHBOARD: The holes on the PC board for t h e CAME RESET and GAME SELECT switches may not be wide enough a p a r t for the switch legs. To correct this t h e legs of t h e switch must b e bent in so they fit into the holes (See Figures 2-5 and 2-6). 2600/2600A Domestic VCS Figure 2-3. 2600 Channel 3 Switchboard Silkscreen 2600/2600A Domestic VCS Figure 2-4. 2600 Channel 3 Switchboard Schematic 2600/2600A Domestic V C S Figure 2-5. 2600 Channel 2-3 Switchboard Silkscreen 2600/2600A Domestic VCS Figure 2-8. 2600A Motherboard Silkscreen (Revs. 14 and 15) 2-1 1 2600/2600A Domestic VCS Figure 2-9. 2600A Motherboard Silkscreen (Revs. 16 and up) 2600/2600A Domestic VCS SECTION 3 TESTING AND TROUBLESHOOTING EQUIPMENT REQUIREMENTS You require eight basic pieces of equipment in o r d e r t o analyze failures in t h e 2600/2600A Video Computer Systems (VCS). These i t e m s include: A 15 MHz oscilloscope A Video C o m p u t e r System switchboard assembly t h a t is known to be operating properly (not required for repairing 2600A units) A Video C o m p u t e r System diagnostic t e s t cartridge, version 2.6 (DTC) Two blue controller port shorting plugs for use with t h e 2.6 (DTC) diagnostic c a r t r idge Signal T r a c i n s C a r t r idqe (STC o r KLUGE) VCS Field Service Manual for Domestic Model 2600/2600A Color television s e t (properly adjusted) Frequency Counter 2600/2600A Domesric VCS TEST PROCEDURES AND METHODS A t a r i requires e a c h 2600/2600A model returned for s e r v i c e t o b e checked for c e r t a i n conditions. In some instances, a unit must be modified t o c o n f o r m t o Atari standards. These changes a r e summarized below. 2600 MODEL MODIFICATIONS 0 Each 2600 model opened must be modified as shown in Figure 3-1 t o provide additional protection from s t a t i c discharge.. A Zener diode is connected b e t w e e n t h e trigger lines and ground, and s t a t i c strips a r e placed on t h e s w i t c h e s on t h e switchboard (See Figures 3-1, 3-2 and 3-41. These modifications a r e c r u c i a l t o prevent c o m p o n e n t d a m a g e d u e t o s t a t i c discharge. Each c o n n e c t o r a n d plug should b e checked for a tight, secure fit. I n t e r m i t t e n t failures frequently result from a loose c o n n e c t o r or plug. Connectors 3202 a n d 3203 should b e checked for pushed o r broken pins. If t h e unit has a green 3200 connector, insert c a r t r i d g e and wiggle it. t h e unit shows i n t e r m i t t e n t problems, replace 5200. If Each board with Ltlolex chip sockets with insertion a i d s should have t h e insertion a i d s removed and t h e chip reinserted. Check t h a t a l l components (especially those on t h e p&imetei of t h e motherboard) are properly soldered. Check for broken o r shorted t r a c e lines. Check for a n inductor and capacitor over C201 and R206. C u t t h e inductor and c a p out, being c a r e f u l not t o c u t t h e C201 o r R206 leads. If unit h a s a standup regulator and heatsink, inspect for hairline f r a c t u r e s between t h e regulator and switchboard. Also e n s u r e t h a t t h e regulator is firmly secured t o the heatsink by a Tinnerman clip or rivet. Ensure t h a t motherboards (Rev. 8 or lower) have a colored dot over t h e t r a c e on t h e upper-left corner of t h e board. This prevents shortinq t h e board and t h e c a s t i n g (See Figure 3-3). Two types of 12-conductor cable assemblies have been used on 2600 model units, t h e flat-wire type and t h e ribbon type. When a d e f e c t is found in t h e flat-wire t y p e c a b l e assembly or its male c o n n e c t o r on t h e switchboard, t h e flat-wire c a b l e assembly should be replaced with t h e ribbon c a b l e assembly and t h e 12-pin male switchboard c o n n e c t o r should b e replaced with t h e 1 G i n f e m a l e switchboard socket. 2600/2600A Domestic VCS Figure 3-1. 2600 Trigger Circuitry with S t a t i c Modification Install t h e s t a t i c modification on all 2600 units. Install CR202 nd CR203 removing C236 and C237 and inserting the C2361CR202 and CAUTION: C2371CR203 assemblies in their place (See Figure 3-2). Observe t h e polarity on CRZ02 and CR203 (the dark band must be toward t h e 3202/3203 connectors). On t h e switchboard, install t h e static strips as shown in Figure 3-4. by 2600/2600A Domestic VCS Figure 3-4. 2600 Switchboard S t a t i c Modification 2600/2600A Domestic V C S 2600A MODEL MODIFICATIONS Each 2600A ( R e v s 1-1 3) model must h a v e s t a t i c s t r i p s placed on t h e f r o n t panel s w i t c h e s (See Figure 3-51. a Check each c o n n e c t o r and plug for a tiqht, s e c u r e fit. failures frequently result f r o m a loose c o n n e c t o r o r plug. a Check t h a t a l l cornponenets are properly soldered, and check for broken o r shorted trace lines. e If a unit exhibits RF i n t e r f e r e n c e t h a t d o e s n o t c l e a n up using normal adjustment methods, o r if a series of lines and bright q r id distortions on t h e screen are accompanied by a loud hum e v e n when properly adjusted, a defective o r leaking c a p a c i t o r may be a t fault. Replace C24l (.I microfarad) and/or C242 (-1 microfarad) located respectively between t h e power jack and voltage requlator. Intermittent ing . Figure 3-5. 2600A (Revs. 1-13] S t a t i c Slodifications 3-6 2600/2600A Domestic VCS TESTING WITH THE DIAGNOSTIC TEST CARTRIDGE (VERSION 2.6) The 2600 D i a q o s t i c Test Cartridge (version 2.6 DTC) contains a varietv of tests t o assist t h e service technician in identifying t h e source of problems within the VCS switchboard and motherboard hardware. The test cartridge is used in conjunction with t h e equipment listed a t t h e beginning of this section. Each test is reviewed in t h e remainder of this section. Detailed procedures for use of t h e t e s t s a r e described in Section 4, 2600 Diagnostic Flowchart, and Section 6, 2600A Diagnostic Flowchart. The tests available in t h e c a r t r i d g e are: a a a RAhi Test Color Bar Test GrayBarTest Diagnostic Matrix Test Audio Tones Test Paddle Control Lines Test The technician also has a Signal T r a c e Cartridge (STC or KLUGE) available for tracking motherboard problems t h a t a r e not repairable with t h e Diagnostic T e s t Cartridge. a Purpose: To prepare t h e VCS unit for testinq by t h e diagnostic cartridge. a Format: Connect VCS unit t o television and battery eliminator. S e t television t o proper channel (channel 3). Plug in t h e 2.6 diagnostic cartridge. Set all 2600 switches t o t h e up position. On t h e 2600A, set a l l front panel switches up and rear panel switches t o the left (See Figure 3-6). i n i t i a l l y to the l e f t Figure 3-6. Switch Initialization Positions 3-7 260G/2500A Domestic VCS RAM m T Purpose: To t e s t t h e 6532 RAM chi0 for proper operation. Format: On power-up t h e television displays diagonal lines of some type if t h e RAM is defective. See Figure 3-7 for examples of screens indicating 2 defective RAM. NOTE: The absence of defective patterns is no assurance that the entire c h i . is sound, only the RAM. The operation of the I/O and Timer functions is not verified by this test. Figure 3-7. Defective RAM P a t t e r n s 2600/2600A Domestic V C S COLOR BAR TEST Purpose: To test t h e 6507 microprocessor, 6532 RAM chip for c o r r e c t operation. a - 1 / 0 chip, and TIA Format: Set all switches t o initialization position. A screen of horizontal color bars is displayed (See Figure 3-81. The screen should b e steady and unchanging. A gray or blue horizontal r e f e r e n c e line runs across t h e s c r e e n about t h r e e bars from its bottom. This r e f e r e n c e line is thinner than t h e bars around it. R211 (R213 on t h e 2600A board) should be adjusted so t h e bars immediately above and below t h e r e f e r e n c e line a r e within o n e shade of each other. Proper operation of t h e unit is indicated by being a b l e t o make this adjustment and by consistent color within the entire span of e a c h bar on t h e screen. Minor glitches on the edges of t h e color b a r s a r e acceptable. Leave this t e s t on for at least t e n seconds in order t o c a t c h any intermittent problems, such as a bar momentarily changing colors o r blanking out. NOTE: This figure is a black and white representation of a color television screen. Figure 3-8. Color Bars Screen 2600/2600A Domestic VCS GRAY BAR TEST Purpose: To test t h e function of ?he luminescence lines (LLIO, L W , LV2) from the TIA chip t o t h e RF Module. Format: Move t h e Color/Black & White switch t o t h e Black and 'White position. There should be eight horizontal gray bars displayed, going from black at t h e t o p t o white a t t h e bottom in even gradations (See Figure 3-9). The screen should be steady and unchanging. fhese lines may have minor litches on their edges. A thin white line always appears just over the top black) bar. No color should appear anywhere on t h e screen. The areas above t h e t o p (black) bar and below t h e b o t t o m (white) bar a r e of no importance to t h e test. This test should b e l e f t on for at least ten seconds to ensure t h a t t h e r e is no "flashing" of any color o r shifting of t h e gray bars. S Figure 3-9. Gray Bars Screen 2600/2600A Domestic VCS DIAGNOSTIC MATRIX TEST Puroose: To t e s t t h e proper function of t h e Input-Output ports of t h e VCS unit. Format: Set all switches t o t h e initialized position, then move t h e L e f t Difficulty switch t o t h e "8" position. The test is performed in t w o parts: 1. With t h e blue shorting plugs removed, t h e matrix of nine rectangles on the screen should look like Figure 3-10. 2. The shorting plugs a r e t h e n inserted and t h e pattern should look like Figure 3-1 1. 3. Press t h e CAME SELECT switch. If t h e switch is properly functionins, t h a t a r e a s f t h e matrix will black out. Release t h e GAME SELECT switch and r e p e a t t h e procedure with t h e G A V E RESET switch. The Ciatrix jumps o n c e every second. Gr u n Not Und Plnk a Green Not used a, Came CIma kkct hitch Rc¶et ;o' Svltch Figure 3-1 0. Diagnostic Matrix Screen (Shorting Plugs OUT) 2600/2600A Domestic VCS Gem Not UYed Pink a Gmr Not U r d Gama R m t hrltch Figure 3-1 1. Diagnostic Matrix Screen (Shorting Plugs IN) 2600/2600A Domestic VCS AUDIO TONES TEST Purpose: To test t h e function of t h e audio tone generation and modulation circuitry. 0 Format: The VCS unit should be in t h e initialized mode. Move t h e Right Difficulty switch t o t h e "8" position. The test displays two alternating patterns on t h e screen (as shown in Figure 3-12) while two alternating tones a r e heard. The tones change in sync with t h e screen. This test pattern continues for one full cycle a f t e r t h e Right Difficulty switch has been returned t o t h e initialized position. Figure 3-12. Audio Tone Test Screens 2600/2600A Domestic VCS - PADDLE CONTROL LINES TEST a Purpose: To t e s t t h e proper operation of t h e Paddle Control Lines by viewing conversion inputs of the TIA chip. the analog waveforms at t h e analog-to-digital Format: Pins 37, 38, 39, and 40 of t h e TIA chip are checked with t h e oscilloscope with t h e VCS unit in Diagnostic Matrix mode and with t h e shorting plugs in place. This test is required only if t h e r e is a problem with t h e hand controller lines. The procedure for this test is detailed in Section 4. 2600/2600A Domestic VCS - 42a Tlh 4040 COL 2600 Motherboard Schematic SECTION 4 2600 DIAGNOSTIC FLOWCHART The Diagnostic Flowchart is intended t o be easy t o use and t h e primary aid when troubleshooting the 2600. Follow t h e prompts in t h e order presented. When a quesrion is asked, follow t h e line from t h a t box which best applies t o t h e unit's condition. The figures referenced in t h e flowcharts a r e located at t h e end of this section. When a line terminates with a l e t t e r inside a circle, note t h a t a page number (i.e., pg. 4-31 is near it. Turn to t h a t page, locate t h e l e t t e r in another circle, and continue t h e diagnosis. The flowchart leaves nothing t o chance, it tells you when t o perform a specific test, and when t o replace components, and even when and how long to "burnin" t h e unit. "Burn-in" the unit for at least two hours a f t e r completing repairs. When a problem is extremely difficult t o diagnose, t h e flowchart sends you to t h e Signal Tracing Cartridge (STC) routine, "D"page 4-47. Due t o t h e repetitive n a t u r e of t h e STC routine, no flowchart is used. Read and follow t h e instructions as directed. Should t h e STC procedure fail t o isolate t h e problem, a f t e r carefully inspecting t h e switchboard and motherboard assemblies for shorted and/or open t r a c e lines, and solder bridges swap a l l t h r e e chips (6507, 6532, and TIA). Should t h e problem still persist, call ATARI, Techline Specialist: Inside California a t (800) 672-1466 and Outside California a t (800) 538-1535. Be certain t o always burn-in t h e unit for t w o hours a f t e r completing repairs. This helps t o ensure t h a t intermittent problems a r e found and also greatly increases your customer's satisfaction with your repair work. SWAP OUT PROCEDURES Many places in t h e diagnostic flowchart, a box tells you t o "swapout" a chip or a number of chips in a order. The "swapout" instruction means t h a t you should replace t h e indicated components one at a t i m e with a known sood component of t h e same type. The VCS should then be t e s t e d with t h e new, known-good component in place t o s e e whether t h e "swapout" solved t h e problem being checked. If t h e swapout did not fix t h e problem, t h e known-good component should be l e f t in, a n d t h e n e x t component inserted. Once t h e problem is solved, you then place t h e suspected bad chips o n e by o n e into the system t o d e t e r m i n e whether o r not t h o s e you pulled o u t a r e truly defective. In this way, you avoid needlessly replacine, gbod components. CAUTION Extreme care should b e taken when handling the integrated circuit chips (A200, A20 1, AZ02, A203). They are all very sensitive to static electricity and can easily be damaged by careless handling. Always keep the chips in their plastic carrier tubes or on conductive foam when not handling them. Make c e r t a i n you are well grounded when handling the chips. Atari strongly recommends that you wear a conductive grounding band (which ties from your arm to ground) when handling the chips. - - - - - - - - The chips are also susceptible to damage from stress when being removed from or inserted into t h e sockets Always use a c h i p p u l l e r when removing t h e chips. Do n o t pry chips out with a screwdriver or any other tool. Failure t o follow the above guidelines results in unusually high chip failure rates and extra expense. ' 2600/2600A Domestic VCE 2600 Diagnostic Flowchart Connect VCS to N barmy eliminator. Set TV to I I Insert Diagnostic Catnidge (DTC),init(Figure 4-11 and aPn on. I I b C S MY fective RAM P.mapQear muse#r(sec Fig. 4-31. No k picave warped and ragged on left side of m? Replace the A 2 0 2 II Does unit now ~ I O W the; No cobr bus panem? 5w- I) A m 2) A202 - 9howtfitcobr bars panern? A Y 2600/2600A Domestic VCS 2600 Diagnostic Flowchart (Continued) i Are color bars present? 'See Figure 4-21. P Yes b I J No I Are color bars properly adjusted? (See Figure 4-2) No 1 2 Yes r m w 4 Is any other test pattern on t h e screen? (See Figure 4-4, Check your switch settings. Are they correct? ,Yes No I Pg. 4-6 J 4-694-9)I a A Is there "snow" on the s c r e w ? (no modulation) I 1 Check VCS connections t o TV and No Is ANY modulation ~ r e s e n on t screen? w Pg. 4-7 No w 1 Pg. 4-9 Test VCS with known good battery eliminator. - I IS "snow"on screen gone? Yes Pg. 4-1 1 2600/2600A Domestic VCS Bad Video Troubleshooting procedure KO identify bad. I I DotJ A203 have p o d V a (+Sv at pin 8) and ground (at pin 1I? Bad switchboard No Repair open trace. ' Das unit now have a picture? ' Yes b k a b 5 v pg signal p m c n t a t pin S of A203? R c p k e A203. pattern an the N? Cheek R221, Is it OK? I 1 Replace RZ21 (33K) I b 1s a p i c w e Yes now pmmt on Yes 0 Chcck that the trace line from A201 pin 2 is not droned toanother Line. I Is a picture now present on the TV? Pg. No Swapout 1) A200 2) A202 - f6-4 r b a picture now present on the N? - Yes h No Pg. 4-2 2600/2600A Domestic V C S Gray Bars Test Procedure Place color/ black & white switch in B h W .position. Did screen pattern change when switch was moved ? Pg. 4-7 Is proper gray bar pattern present? (See Figure 4-4). Is a partial segment missing or is any color present? (See Figure 4-51 pg. 4-45 2600/2600A Domestic V C Color Bars Test Procedure u and initialhe. I Are color bars mesent on screen? Pq*4-2 Adjust R211 SO that color is aligned properly. (See Figure 4-21. I Is VCS tunable to proper shades? Pg. 4-23 2600/2600A Domestic VCS Defective Switch Troubleshooting Procedure With inqxrative switcb ,in position (open). u prnmt at 3201 pin for that switch?(See Chart) +Y: h there an open bdvnotwpresent a t the RAM pin for that switch? (see chart) ktareen 1201 and No - Repair open trace. Yes RAM pin? b No - Yes Does switch now chnge ~rm on screen? I b Yes fhes ~witCfinow work? Yes I i CONNECflON CHART Pg. 4-7 and White Lait Difficulty Right Difficulty kkt Restt 2600/2600A Domestic VC Defective S w i t c h Troubleshooting Procedure (continued) Check RAM (A2021 pin for the switch for +5v. Is it present? Pg.. 4-9 Check for shorted trace Line. Repair as necessary. Does switch now work? 2 Swapout A 2 0 2 Does switch now work? C h d whether capacitor on that RAM line b shorted to ground Replace as necessary. Does switch now work? Pg. 4-2 2500/2600A Domestic VCS Black or Solid Colored Screen Troubleshooting Use swapout Defective switchboard procedure to identify which board is bad. Pg. 4-16 Defective .Motherboard I b J Is 4-E, p-p d2 signal p r e x n t on A202 pin 392 Yes Pg. 4-10 Is 4-5v p-0 1) X200 2) Q200 3) 4201 o x . signal present betureen C203 and R203? # I Is 4 - j v p-p o x . signai p r e x n t on pin 11 .4201? I 4) Other Clock Circuit Components v b - 0 Opm between C203 and pin 1 I A20 1. - Is (C-5v p-p dO signal 1) A201 pin 4 A201? 2 ) A200 present on - Reoalr Does unit function? I L Pin b 4-5v p-p do signal present on pin 27 A200? b No Q A201 shorted. Reoair Openbemeen Pin 27 A200 and Pin 4 A20 1. I b i Yes I b 4-5v p-p d2 signal p r e x n t on pin 28 AMO? No Swapout 1) A200 2) A202 - Does unit function? Yes Pin 28 A200 is shorted. b 4-5" & 62 signal present on A201 pin 26? b N~ Open between Pin 26 A201 and Pin 28 AZOO. L b I Ooen between Pin 39 A202 and pin 28 A200. 2600/2600A Domestic V C S Black or Solid Colored Screen Troubleshooting (Continued) a I Is 4-5v p-p . No d2 signal present on. pin 26 A201? I Open trace between pin 26 A201 and pin 39 A202. d b L Yes Is there +5v and ground on all of No I I AZOO, A201, A202, A203? Open on line to +5 or ground. t I I Reset and ready lines good? Open or shorted line. t Swapout 1) A200 2) A202 Does unit operate properly? Pg* 4-45 n Repair Pg. 4-2 2600/2600A Domestic VCS Snowy Screen troubleshoot in^ Procedure, Motherboard Use swapout . I Bad switchboard. procedure to identify which board is bad. Pg. 4-12 Pg. 4-18 Bad motherboard. I Yes 1s +5v present at J2Ol Pin I ? i L 4 J No Is there continuity across 5201 pin 2? Is modulation evident on the TV screen? Replice 520 1. Yes A i Yes No r) Is +7.5-9.0~ Yes present a t 3204 I Check for open trace line between I J204 and J201. (the power jack)? Check at bottom 00 M pg.4-ll of board * -Pg. 4-1 1 No 1 Is 3204 OK? I 7 d Yes Voltage shorted to ground. 4 I I t Repair b 4 Replace J204. 2600/2600A Domestic V C S Snowy Screen Troubleshooting Procedure, Motherboard, (Continued) & No Is there continuity across J201 Pins 1,3,6, 10,l l ? b h Replace connector. i , I Is modulation evident on the screen? ' Yes *Caution: Observe polarity of continuity checker. Do =put + probe on ground. I I W Is there continuity between +5V line and ground?* I Is there an open trace on either +5v or ground? No Yes 1 Check for and repair any shorted traces or solder bridges. Is modulation the TV screen? Pg. 4-2 Check for and rtplace shorted . I I caps: ~ 2 0 4 , ~ 0 1 , ~ 2 2 0 , C239,C200,CZl'l. Is modulation evident on the screen? Pg. 4-1 1 Yes Pg. 4-2 2600/2600A Domestic V C S Bad/No Color, Bad/No Sound Switchboard b I l i L Is RF mod output tuned to 61.25 MHz? (Channel 3) 1 Can unit b e tuned to 61.25 MHz ( 2 -15 MHz)? No Replace RF modulator. No I b Yes Is color No I (or sound) Yes I now OK? J I Short across L 10I. Does color (or sound) reappear? 4 L No I I Replace RF modulator. I L w' u Replace LIOL. 2600/2600A Domestic VCS Gray Bars Troubleshooting Procedure r - I - Isthere a 3-5v p-p signai on the A203 side of R222, R223.R224? I Y e s Ohm meter. Replace any failed or off-value resistors. Pg. Do a l l of pins 2, 12, and 15 on A203 have a signai present? Yes b45 There is an open line between A203 and the resistors. Fix it. Pg. 4-5 I Check inputs of A203 (pins 3,11,14). Does each have a signal present? m Yes Replace A203. 1 Pg. 4-2 I Do all of pins 5,7,8 on A20 1 have a signal present? 'll Check for open linesbetwen A201 and A203. Fix. I Pg. b 1 5 2600/2600A Domestic V C S Gray Bars Troubleshooting Procedure (Continued) Picture Now Yes & OK? (See Figure 4-4) I J Go to matrix test. I A Make sure 11218, R219, R220 have +Iv connected to top side. I Check RZl8,RZl9, RZ2O for proper Inspect traces around LM lines for shorts or opens. I Yes Is picture now OK? (See Figure 4-4) 'and then A202. L I Is picture now OK? (See Figure 4-41 J Yes Pg. 4-20 2600/2600A Domestic VCS Colored Screen Troubleshooting Procedure Switchboard =? Bad Switchboard Is +5v a t JlOl Pin I ? Pg. 4-17 4 Is RF mod. output tuned to 61.25 MHz (channel 3 , + .I5 Tune R F mod. No MHz) at adjustment hole. If RF mod cannot b e tuned to 61.25 MHz, replace it. B b Check for open trace or bad connection between J2Ol and RF Is video signal present at JlOl pin 12? module pin. Repair, I Is JlOl pin 12 shorted to ground? P . No ~ e f e c t i v 3101. e Replace I C h d c for shorted trace. If none is found, the RF module is shorted and must be replaced. Pg. 4-2 2600/2600A Domestic V C S Colored Screen Troubleshooting Procedure, Switchboard, (Continued) m Is +9v present at JlOl Pin 2? Yes v I Is ClO 1 shorted? yes ) Replace C101. L t shorted to ground. Check that C10 1, C103, or C106 are not shorted. Replace if shorted I I I b Replace voltage regulator (A10 1). I 1 P If +9v is still not present at JlOl pin 2, then r e p h c e the regulator (A101). Pg. 4-20 2600/2600A Domestic VCS Snowy Screen Troubleshooting Procedure, Switchboard IS +5v present at 3101 pin 1 on the switchboard? Pg. 4-19 I 4 A Is +5v at the RF modulator pin 3 (5 pin mod) or pin 2 (3 pin mod)? Open between A10 1 pin 3 and RF module pin 3- t Does RF modulator pin 1 have continuity to ground? J L Yes Check for and repair opens be- No * RF module pin 1 and 3101 pins 6 and 10 (ground). Repair - r-= I RF module output is tuned to 6 1.23 M H z . ( 2 -15 MHz). If tbere is still . a white screen, check the JlO2 connector. Replace as required. r If no modulation, the RF module is bad. Replace. I I Is there modulation? - A 2600/2600A Domestic VCS Snowy Screen Troubleshooting Procedure, Switchboard, (Continued) I I Is +5v a t the output of the voltage regulator (A101, pin 3)? Check for bad regulator (AlOl) or open between ground and A101. Is unregulated 47.5-9v a t voltage regulator input (A101, Pin l)? I -7.5-9v present on the 3101 side of I yes RephCe SiOl. - D o e s " r h 2 have continuity? ( Yes I Is JlOl pin 2 shorted to ground? l$l Replace 5 10 1. Check that C103 or C106 u have not shorted to ground. i t r e ( ) Is there modulation? 0 Pg. 4-2 2600/2600A Domestic V C S blatr ix Test Procedure I Initialize switches, the? push "left" difficuity swltCh down. I match Figure 4-6? Does screen Put in shorting plugs. Does screen match Figure 4-7? Pg. 4-23 . I Push down "Game Select" switch ( 5 106). Did lower middle block on screen turn bia& in center? "Reset" switch (SlOS) Does lo wet middle block turn black on left and right ends? Yes Pg. 4-7 Pg. 4-24 2600/2600A Domestic VCS Color Troubleshooting Procedure, ?Jotherboard tive switchboard. 1 X200 frequency correct? 1 Defective X200. Yes Is color very weak or not present at all? 1 Yes - I Pg. 4-22 With RZll fully countcrciockwix is there 6.5-7.5~ on pin 10 A201? b there +6-7v on Yes the cathode of CR201? I 8 Defective C208,C209,RZll or open trace between CR2Ol and pin LO A201. No I I I 1s there a 3-5v P* signal on cathode I signal on cathode CRZOO? - P A Yes Detective CR200. Defective CR20 1 C Open or shorted trace to diodes (CR2OO or CR20 1 ) Replace or Repair A I Pg. 4-2 2600/2600A Domestic V C S Color Troubleshooting Procedure, Motherboard, (Continued) Does screen now have color? I Is 305-5~ p-p signal present between C213 and R215? Pg. 4-2 1z,-Ih I Defective C213 - Defective C212 u b 3.5-5v p-p $ signal prescnt I I between C212 and C213? k 3.5-5v p-p 4 signal present shorted to another I I Replace or Repair I I Pg. 4-2 2600/2600A Domestic V C S Defective Man ix troubleshoot in^ Procedure R e s a n e r n may ?ave crrors, 3ur all n m e blocks are sresent 9 P a r t e m LS disrupted blue or black iines are .nusing or some gortlon of m e .UPLX farh to appear a\ me if -- I I + I blue b b c k g r ~ dpanern disrupted? (See Fisure 3-8 for example Sad panem) j w a o ~ t !) A200 (5 N screen. I3 L entire Yes matrix now on %reen? 2 ) A202 3) A201 upper left bbcK on Pq. G 6 . i r e either me middle lower or the l e f t lower 3d e f u t r v e ? (See Figure 4-6 or 4-7 for J Swapou t 1 ) A202 2 ) A200 3) A201 correct p a n e r n ) b Are mtadle-left m a lower-kvet blocks now corr e c t (See Figure a-6 or b 7 ) ? Yes 'Jo block d e f e c n v e ? Pq. '(-26 Pg. L 2 7 I Is l o w e r - m ~ d d k block defective? Pg. b 2 7 - Pg. b - 4 A u Pg. '(-20 2600/2600A Domestic VCS Audio Test Procedure I Reinitialize switches. Press down the '?right difficulty " switch. Is there a clear tone? 1 Pg. 4-27 Use scope or frequency counter to measure frequenq at emitter of QZOZ. I 7) Tune audio to 5.5 MHz by adjusting L2O 1. I h Ad just to 2 .06 MHz. Look for stable f r tquency. Can unit be adjusted is sound clear? Pg. 4-28 2600/2600A Domestic V C S Audio Test Procedure (Continued) I Are the two patterns in Figure 4-9 alternating on the screen? Pg. 4-28 I Yes Pn. 4-24 Do the patterns alternate with the tones? 1 I yes J A Are both colors and tones consistent each cycle? No Swapout I ) A201 2) A200 3) A202 b I I Are patterns now correct? (As in Figure 4-9) IYes -1 Put switches back to initialized positions. b VCS will go through o m last cycle before changing to color bar test. Pg. 4-30 2600/2600A Domestic V C S Changed per ECN #0021 1/29/83 D e f e c t i v e 1/0Lines Troubleshooting Procedure U e f e c t ~ v e2 0 2 Cap. ( R A I M ) L ~ ~ ~ N o .No. De (ermine which lines a r e defective by referring to Connector PinNo. 14 C235 C234 I3 C233 15 3202-Pin u 3202-Pin 3 3202-Pin 2 . Check the lines indicated as defective for +Sv a t 3202 or 3203 (See chart). I Is +5v present on the linds) just checked? I A b J Yes L *H Ih- (A2021 pin. Is +5v I . - Does Diagnostic Matrix now look cwrtct (See Figure 4-6 or 4-7)? I k1 - berwecn A M 2 pin and the 3203D203. p r t x n t there? Check trace l i n d s ) from defective pin(s) for rhora t o ground. Are there any shorn? Swapout I ) A202 2 ) A200 3) A201 ( ~ h c dI b No ~unitnow&owthc color bars pattun? 8 swapout & 1) A200 2) A202 b Does unit now show the color J No bars pattern? I . 2600/2600A Domestic VCS 2600A Diagnostic Flowchart (Continue?) Pg. 6-7 - Are color bars present? (See Figure 4-21. .Yes h 4 Are color bars properly adjusted? (See Figure 11-21 Pg. 6-6 No Is any other test pattern on the screen? ( S e e Figure 4-4, , Yes Check your switch seeings. Are they correct? No 44,409). present on screen? 1 Yes Check VCS connections to N and cfiannel setting. I Test VCS with known good battery eliminator. I ' - Pg. 6-10 I IS -"snow"on screen gone? Yes r 2600/2600A D o m e s t i c V C S 2600A Bad Video Troubleshooting (Loss of Sync.) (Revisions 1-1 3) Can R F module R F module tuned to 61.25 MHz? (Channel 3) be Replace R F module properly tuned? Yes Yes 1 Tune R F module I a J 3.5-5VP-Psignal on A201 side of R217. v' Yesp I Defective R217 or bad ,4201. a I Yes Good video No Defective R22 1 I I b n Rep lace 2600/2600A Domestic V C S 2600A Bad Video Troubleshooting (Loss of Sync.) (Revisions 1 4 and up) I R F module tuned to No 6 1.25 MHz, Channel 3 ;' ' Can R F module b e properly tuned? No Replace R F module. - I Yes Tune R F module. b T 3.5-5V P-P signal on A201 side of R217. b Yes D e f e c t i v e R217 or d e f e c t i v e CR203. or d e f e c t i v e A20 1. ' d Swapout 1) A201 2) A200 3) A202 + Good video: Yes - , Defective R221 o r R23( 2600/2600A Domestic V C S 2600A Gray Bars Test Procedure Place color/ black & white switch in B&W posit ion. I Did screen pattern change when switch was moved ? Pg. 6-8 Yes L Is proper gray bar pattern present? (See Figure 4-4). Pg. 6-13 Is a partial segment missing or is any color present? (See - Figure 4-51 Pg. 4-45 -- Pg. 6-14 or 6-15 M 2600A Revs. 1-13 N 2600A Revs. 14 and up 2600/2600A Domestic VCS 2600A Color Bars Test Procedure Reconnect VCS and initialize. I Are color bars present on screen? ( yea I Adjust R213 so that color I is aligned properiy (See figure 4-2). 6 Pg. 6-2 I I 4 1s VCS tunable to proper shades? & b No Pg. 6-6 Pg. 6-14 or 6-15 M - 2600A Revs. 1-1 3 N 2600A Revs. 14 and up - 2600/2600A D o m e s t i c V C S 2600A Defective Switcn Troubleshooting CONNECTION CHART A202 Switch Pin No. Color/~lack and White 21 Left Difficulty 17 Right Difficulty 16 Select 23 Reset 24 With inoperative switch in open position, is there +5v present at the A202 side of it? 9 Pg. 6-9 1 Close the switch. I b Is there an open between A201 and that switch? 1s switch connected to ground on other side? Yes I Replace switch. r fl Yes 0 Repair trace. 2600/2600A Domestic VCS 2600A D e f e c t i v e Switch Troubleshooting ( C o n t i n u e d ) L Is switch internally shorted? Yes Replace switch. & I I Is cap on that line shorted ,Yes t o ground? (See chart) Swapout /Is there +5v on the RAM pin for that switch? (See chart) 1) A202 2) A200 3) A201 CONNECTION CHART A202 Pin No. Switch lack L I I Open between RAM pin and inoperative switch. and White Left Difficulty Right Difficulty Select Reset 21 17 16 23 24 A d 0 Repair Pg. 6-2 2600/260014 D o m e s t i c VC: 2600A SoLid Colored Screen Troubleshootinq I - !s L-lv p+ QO siqnal . ?resent on pm i AZOl? Swapout 1) A200 2) 4202 4 - 1 L No Does unit ~W-IO~? J I I J Pin b A201 snorted. I b Yes I Pg. 6-2 pen between pm 27 .+ZOO;, and pm A201. 1s 4-Sv p-p slqnal xesent on DUI 27 A2OO? 1 1 IS b-sv p+ S)Z siqnal x e m r on pm ZS .4200? ' 2 Swapour 1 ) A201 2) ,420fl Yes Is JS-v p-p 9 2 signal aresent on pin 26 A2011 - 1 beween Pm 26 A201 and pin 28 A2(XI. - J J ' Does unit function? Pin !S AZOO saortcd to ground. Reoair. 2 Reoav Yes , I I ye5 J Open oerwccn pin 39 A202 and pm 29 A200. h 2600/2600A Domestic V C S 2600A Solid Colored Screen Troubleshooting (Continued) I Open t r a c e between pin 26 A201 and pin 39 A202. Is 4-5v p-p @2 signal present on A201 pin 26? Yes + Is there +5v and ground on all of A200, A201, NO ' A202, A203? No Reset ready Lines good? I Swapout liAZ00 J Open on Line to +5v or ground, or bad regulator. r L 1 t Open or shorted line. I Does unit operate proper fy ? I yes r pg. 4-45 Repair 260012600A Domestic V C S 2600A Snowy Screen Troubleshooting Procedure ? 1 J 1s - 5 v present on ourpur of .\203? 1s there +jv on in b RF module! b - + kr yo ~205 defective? Jpen b e w e e n A203 ourput and RF moaule pin 4. h I i b Yes b b R e p l a c e RF module or bad R F cable? No I , J D 1 Repair RepLace L205. A I L 4 pen between 3201 and put A203. 7.5 unrequiated on 3201? b I No Repair - 5 v h o r r e d ro qround? Swawut 1) ,4201 21 A200 3) A202 Yes .Anv modulation? Defective 220 1. i A u Replace Pg. 6-2 in Repair 2600A klatrix Test Procedure teen push "left" dlff~cultyr w ~ t c h. Does screen match Figure rb? Put in shortin3 1I Does screen match Figure 4-7? Pg. 6-16 "Came Select" Did Lower middle block on screen nun black in center? Push down "9eset" switch (SLOS) b Does lower middle block turn black on Pg. 6-8 Pg. 6-17 2600/2600A Domestic VCS 2600A Gray Bar Troubleshooting Procedure (Rev isions 1-1 3) signal on t h e A20 1 side of R214, R215, and R216? I I fs there 3-5v P-P signal on the A20 1 pin corresponding to t h e resistor that had no signal? Yes yes { Check R214, R15, and R216 with meter for correct value. Replace any defective Open between A2I 1 and that resistor. Repair Check pullup resistor R218, R219, or R220 on that line to insure resistor is good and one side is connected to +5v. L I Resistor Defective? P Replace Yes Pg. 6-2 2600/2600A Domestic VCS 2600A Gray Bars Troubleshooting Procedures (Xevisions 1 4 and up) a I sideofR210,R215, and ~ 2 1 6 ? n a 1 R214, R15, and meter for correct value. c e any defective components. '( K L d~ with signal on the A20 1 Is there 3-5v P-P signal on the A20 1 pin corresponding to the resistor that had no signal? I u --I- Open between A201 and that resistor or defective Cii202 if L.M 1 is bad. Repair ; I Check pullup resistors R218, R219, or R229 on that line t o insure resistor is good and one side is connected to +5V. Resistor Defective? I Yes J I Replace Pg. 4-45 Pg. 6-2 2600/2600A D o m e s t i c V 2600A Color T r o u b i e s h o o t i n ~(Continued) 5wa~our Yes Does voltaqe vary beween 2 4 5 v o n o m !C) of vnen R213 u rotarea? ' , 3tolace YZPO. Turn a213 fuUv clockwise.. . 1 4 Yes !s tnere 6 v on anode of C.9290? A t-L I I A291 i 8 i !) 2 ) 4290 3 ) A292 3.5795 MHz? w * Yes Is V290 frlnutncy i)e:ec:lve D c W m w L r R213 or ooen R7 me AZOl. Reuar or Replace L .' I Yes 5 . 5 ~on anoae of CRZO 1 ? A Is a212 ~ood? . Yes Defecnve CBZOO. b I & Repau x Replace h e n xrween - 5 h CX201 J J I I 1 26G012600A Domestic VC,C 2600A Color Troubleshooting (Continued) 1 J Y Y O frquencv 3.5'95 :.:Ok V~ ? , D e fecrive 1 ) Y200 2 ) Q200 dr Q20 b 1 J b t i b Can RF Module be tuned properly? RF frequency 61.25 WHz 5 .IS? i - Yes I Is Replace J '40 Replace RF module. b I i Yes f une RF module. - Is XF cabk good? I No Reohct I 2600/2600A Domestic VC: 2600A Defective Matrix Troubleshooting Procedure The panern may i a v e errors, but all nine bloc~sare xesent on screen. 4 1 ?artern LS disrupted if blue or black lines are missing or some portmn of the Mauix faiis TO appear on the TV screen. Swapout 1) A200 2) A202 3) A20 1 Is blue black grid panern dhrupfed? (See Figure b 8 for example bad pattern) i d k entire mauix now on screen? b 4 Yes 1 Yo 1 0 Is upper Left block on screen defective? ( S e t Figure 4-6 or 4-7 ior correct oartern) Pg. 4-45 Pg. 6-22 6 Is upper-m iddle b b c k defecrive? Pg. 6-22 Pg. 6-23 Swapour 1s middle-middle block aefecrive? a 1) A200 21 A202 3) A201 J - Yes [S middle-middle block now OK? I k lower-middle block defective? Pg. w5 Pg. 6-13 2600/2600A Domestic VCS 2600A Audio Test Procedure Reinitialize switches. Slide the right difficulty switch to the right. Is there a clear tone? I Use scope or frequency counter to measure frequency a t emitter of 4201. I Tone audio to 4.5 MHz by adjusting L2O I. 4 I I I Ad just to 2.06 MHz. Look for stable frequency . I Can unit be adjusted g& is sound clear? . - /- Pg. 6-24 2600/2600A Domestic VCS 2600A Audio Test Procedure (Continued) Are the two patterns in Figure 4-9 alternating on the screen? I Yes Do t h e panems alternate wirt.1 the tones? I I Are bath colors and tones consistent each b Swapout 1 ) A201 I No cyde? 2) A200 3) A202 I A t e patterns now correct? (As in Figure 4-91 I Yes I J Put switches back to initialized positions. b I Pg. 4-45 VCS w i l l go through one last cyde before changing to color bar test. Pg. 6-27 2600/2600A Domestic VCS Changed per E C N #0021 1/29/83 2600A Defective I/O Lines Troubleshooting Procedure Defective ,4202 Determine which lines are def cctive by referring to Figure b 7 . Check the lines indicated as defective for -5v at J202 or 1203 (See chart). I (RAM) Line No. 15 14 Cap. Connecror C236 C229 m No. Swapout Yes L ) A202 II just chcckec'" Check the RAM (A2021 pin. Is +5v p m m t theft? II I I Check tract l i d s ) from defecrive pinh) for h m to ground. Arc them any-shorts? [5 ~ 5 now v present ar the A202 pin? I nk 3202-Pin 3 I Is +5v present on the tinds) I Pin No. Repair open trace beween A202 pin and tht J20311203. b - Does Diagnostic Matrix now look Yes corrccr (see shoned to +5v (Check trace lines). Repair I Yes I Replace the capacitor on that line (see chart). Docs the Diagnostic Matrix screen now look correct (see Fig. 4-61 Swapout 1) A200 2 ) A201 2600/2600A Domestic VCS 2600A Trigger Line Troubleshooting Procedure Is there +5v at pin 6 of 1202 (Left Trigger) or J203 (Right Trigger)? Yes I h Swapout 1) A201 2 ) A200 3) A202 i Does trigger line work properly now? - Are 2226 (Left Trigger) R223 (Right Trigger) No goacl and connece to R223 or R226 is shorted I 1 Yes I No I Replace defective resistor. 2 b C ~ V ? Chetk continuity %Pins (3202 & 5203) and resistors (R225 and R224). benvetn I I Cantinuity good? P I 1 A No Repair Trace I A Open R224, R225 or shorted (2216, C217. Pg. 6-2 2600/2600A Domestic VC 2600A Audio Troubleshooting k RF module tuned to 61.25 MHz? (Channel 3) N Is only one audio tone present? ye, J Is there a defective A20 1 or open A201 pin 12 and A201 pin 13? 1 Yes Repair rn Pg. 6-2 i# Is there a 2v p p square wave that alternates between nvo frequencies on pin 13 of A201? Is there a 4.5 M H z , Does quare wave S ~ J M ~ appear at C208? signal at C211 (either side) Yes Fix open trace line betwtcn C208 and Pin 12/13 of AZO1. I Replace 1) a i l 2) R207 Is there now an alternating audio tone from the TV? 2600/2600A Domestic V C S 2600A .Audio Troubleshooting (Continued) 4 Can RF module be Yes Tune R F module. properly tuned? rRephcc RF module. * Is + 5 present at the slde of R206 closest to LZOI? I pen between - 5 & R206 Yes IS there c o n t ~ n u i t yfrom R206 to AZOL pin 13? Repair open b e t w e e n R206 and A20 1 pin 13. I 11 Swapout AZOl. 2600/2600A D o m e s t i c VCS 2600A Audio Troubleshooting (Continued) I Fix open r a c e line t r t t w m C201 and Pin 12/13 o f A2Gl. Check mat L201 is g o o d ( H a cantlnurry and u nat shorred or cracked.) If audio is still dead. ~ C C K !or opens and shors& Is there now an alternatlng auaia tone from :he TV7 2600/2600A Domestic VC! 2600A Cartridge Test Procedure DTC works, but VCS unit is still suspect. v b Plug in c u t o r n e r Not Available cartridge, if availabie. I A Available Connect, initialize, and nrrn VCS on with customer's game cartridge. Does correcr video pattern for that game appear? rn 1 Chedc customer cartridge on known good game. Is it OK? Pg. 6-28 I 9 Swapout 1) A201 Yes I 2) A200 3) A202 : b Does game now o p e r a t e properly wirh game cartridge? I rn Replace with good cartridge. Pg. 4-45 2600/2600A Domestic VC5 2600A Burn-In Procedure I I Place customer cariridge in game, if available. Otherwise, use other game cartridge. I Run game for 2 hours, minimum. Do not turn off during this period. Check game's operation. I Is game working properly ? End of .test sequence. I Pg. 6-2 2600/2600A Domestic VCS 2600A Paddle Lines Test 4 I Put snorting ?lugs in. Put VCS into Diagnostic Mauix mode. 7 - I A m No I P - Check'2°2/3203 for RC ~ o e waveform s appear a t No waveform (see Fig. 4-10). Yes each of the ~ 2 0 1pi,,s k waveform present on shown in the chart? each of the pins shown b in chart? 1 I1 & there continuity between the 3202 or 3203 pin (see chart) and the A20 l? Check trace lines and resistors for opens Repar open I trace between A20 1 and 12021 1203. - Repair on the failed line. Dges RC waveform appear yes on the appropriatt 3202 ' or 3203 Line? (See Chart) Line now work? I . Repair - A Connection Chart Player 1 2 3 u Pin Pin A201 3202 40 5 3 9 9 38 37 - Pin Cap - C215 203 No. 5 9 C216 CZ17 C218 Do paddle lines now work OK? 4 Yes I SECTION 7 GAME CONTROLLERS OVERVIEW T h e following pages contain descriptions, schematics, and t e s t procedures for t h e four g a m e controllers used with t h e Video Computer System. JOYSTICK (X-Y) CONTROLLER Inside e a c h joystick is a small PC board t h a t has five calculator-type keypads mounted on it. Two ;&ions of the P C board exist in c u r r e n t joystick models; s e e Figure 7-1. Four of t h e keypads a r e positioned beneath t h e stick in a square shaped pattern, and t h e f i f t h is located beneath t h e pushbutton. When t h e stick is pushed forward, t h e bottom surface of t h e stick presses against t h e forward keypad, causinq it t o m a k e c o n t a c t , and complete t h e c i r c u i t t h a t is c o n n e c t e d t o it. In t h e s a m e way, pushing t h e stick back, l e f t and right causes t h e respective keypad underneath t h a t position t o close and complete t h e circuit. NOTE: The earliest models of the joystick had five spring-loaded buttons instead of the present configurations. These earlier models cannot be repaired. Earlier Version F i ~ u r e7-1. Joystick (X-Y) Controllers 2600/2600A D o m e s t i c VCS If t h e s t i c k is gushed f o r w a r d and t o t h e r i s h t a t t h e s a m e t i m e (tha: is, in a n o r t h e a s t e r n direction), both t h e forward and rignt keypad c l o s e s i ~ u l t a n e o u s l y ,which c a u s e s t h e 6532 t o see t w o s w i t c h c!osures happening a t once. The result is t h a t t h e o b j e c t being controlled o n t h e s c r e e n moves diagonally. With t h e four keypads, 8 d i f f e r e n t directions can b e attained. The pushbutton d e t e r m i n e s w h e t h e r t h e keypad b e n e a t h it is e i t h e r open o r closed. S e e F i g u r e 7-2 for Joystick Schematics. F i g u r e 7-2. Joystick S c h e m a t i c 2 6 0 0 / 2 6 0 0 h Domestic VCS JOYSTICK ( X - Y CGNTXCLLEI?) CHEC;< Zquiornent Needed e T.V. s e t a Known good VCS unit a Combat cartridge Procedure 1. Check for c o s m e t i c damage. 2. P!ug in cartridse a n d plug c o n t r o l l e r t o h e tested into t h e l e f t "!aver port. 3. Turn on unit and p r e s s GAME SELECT until g a m e i .l S appears. 4. Press G.A.\IIE RESET. 5. Push t h e joystick handle a w a y f r o m you a n d t h e plane should go dourn. 6 . Pull ;he joystick handle t o w a r d you and t h e plane should go up. 7. Move t h e joystick r i g h t and plane should meed up. should slow down. l o v e it Left a n d p l a n e 3. Push t h e Red b u t t o n and t h e plane should fire. 9. This c o m p l e t e s t h e (X-Yc o n t r o l l e r ) check. 26C0/2600A Dom'estic VCS P.ADDLE CONTROLLER t a c h g a m e paddle consists of a 1 Megohm p o t e n t i o m e t e r t h a t , when varied, causes d i f f e r e n t values t o be seen a n d a c t e d upon by t h e TIA. Also c o n t a i n e d in t h e paddle is a s i m p l e spring loaded push-to-make pushbutton switch. T h e r e a r e t w o g a m e paddles c o n n e c t e d t o e a c h I/O plug. F i g u r e 7-3 i l l u s t r a t e s t h e paddle c o n t r o l l e r assembly and F i g u r e 7-4 t h e paddle c o n t r o l l e r s c h e m a t i c . I 8 F i g u r e 7-3. Paddle Controller 2600/2600A D o m e s t i c VCS WrrON CGNTROL I PIN 4 PIN 5 Figure 7-4. Paddle Controller Schemaric P,+DDLE CSrU'TXOLLER CHECK E a u i ~ r n e n tYeeded T.V. Set 0 Known good VCS unit casinoT'; c a r t r idqe Procedure 1. Check for cosmetic damage. 2. Plug in cartridge and plug controllers t o be tested into the left player port. 3. Press game reset. L. Press the button on one of the controllers. A air of numbers shouid appear. 5. When you turn the knob, one set of numbers should 70 between 20 and 2QO by steps of 20. T h e numbers should not advance r e a t e r than a step of 2'3. 6. Repeat steps 3, 4 , Jc 5 for the other controller. DRIVING CONTROLLER T h e h e a r t of t h e driving c o n t r o l l e r is a switching d e v i c e t h a t g e n e r a t e s a full two-bit g r a y c o d e for each q u a r t e r t u r n of t h e c o n t r o l l e r knob. The o u t p u t of both t h e g r a y c o d e g e n e r a t o r and t h e pushbutton switch is d e t e c t e d by t h e 6532, causing t h e program to respond accordingly. Unlike the non-linear resistive g a m e paddles, t h e driving c o n t r o l l e r gives t h e user p r e c i s e linear positional c o n t r o l o v e r t h e c o m p l e t e turning r a n g e of t h e knob. As w i t h t h e game paddles, t h e r e is a s i m p l e push-to-make ~ u s h b u t t o n switch l o c a t e d on t h e side of t h e controller. The driving controller assembly is illustrated in F i g u r e 7-5; t h e seL-.: :-..?ticin F i g u r e 7-6. Figure 7-5. Driving Controller 2600/2600A D o m e s t i c VCS - I , TRUTH TABLE i A F i g u r e 7-6. Driving Controller S c h e m a t i c DRIVING CONTROLLER CHECK Equipment Needed 0 T.V. s e t Known good VCS unit Indy 500 c a r t r i d g e Procedure 1. Plug in Indy 500 c a r t r i d g e and plug in driving controller t o b e t e s t e d in l e f t hand port. 2. P r e s s game r e s e t switch. 3. Turn controller knob and insure t h a t c a r t u r n s in t h e s a m e direction as t h e knob. Insure t h a t c a r doesn't skip position o r wobble between positions* There should b e 16 d i f f e r e n t positions for t h e c a r . 4. Press down on t h e knob and lightly wiggle i t back and forth. T h e c a r should not move a t all. 5. Press down on t h e r e d button. The car should m o v e forward. 6 . If t h e c o n t r o l l e r fails any of t h e a b o v e t e s t s i t is d e f e c t i v e . 2600/2600A Domestic VCS KEY BOARD CONTXOLLER T h e keyboard controller (Figure 7-71 is a 12 button calculator-type switch array that functions like a small computer keyboard. When one of t h e pushbuttons is pressed, the corresponding s e t of sense lines is closed, completing t h e circuit. The closure is d e t e c t e d by t h e 6532 and appropriate action is taken by t h e program. Figure 7-8 illustrates the keyboard wiring and Figure 7-9 the keyboard schematic. Figure 7-7. Keyboard Controller 2500/2600A Domestic VCS Figure 7-5. Keyboard Wiring Diagram PIN 2 0' PIN3 F i g u r e 7-9. Keyboard S c h e m a t i c 2600/260GA D o m e s t i c VCS K E Y B O A R D CONTROLLER CHECK E q u i p m e n t Needed T.V. set Known good VCS unit Brain G a m e s c a r t r i d g e a One good keyboard c o n t r o l l e r Procedure 1. Check for c o s m e t i c d a m a g e . 2. Plug in Brain Games c a r t r i d g e and plug t h e known good keyboard into t h e right -hand plug. 3. Plug t h e c o n t r o l l e r t o b e t e s t e d into the left-hand plug. 4. Press g a m e s e l e c t until g a m e 819 a p p e a r s and p r e s s g a m e r e s e t . 5. If an audio tone sounds, t h e c o n t r o l l e r is defective. 6 . S t a r t i n g with t h e "I" key, press t h e keys in t h e following order: 1, 2, 3, 4, 5 , 6 ? 7, 3, 9 , *, 0, I/. E a c h key should g e n e r a t e a t o n e lower t h a n t h e key before it. 7. Test completed. 2600/26GOA Domestic VCS SECTION 8 CX2600 DOMESTIC (M/N) VCS PARTS LIST Part No. Bezel Assy Rubber F e e t Console Top Console Base Console Base Assy AC Power Adaptor TV Switch Box CX2600 VCS Keyboard Controller Driving Controller Paddle Controller X-Y Controller AC Power Adaptor Bezel Console Console Console Console Final Final Final Final Final Final Final Final CA018200-01 Final P Final Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother .Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Description A C Power Adaptor TV Switch Box Resistor 1/4W 100 Ohm Resistor 1/4 W 1K Resistor 1/4W 10K Resistor 1/ 4 W 12K Resistor 1/4W 1800 Ohm Resistor 1/4W 18K Resistor 1/4W 220 Ohm Resistor 1/4W 24K Resistor 1/4W 27 Ohm Resistor 1/4W 3300 Ohm Resistor 1/4W 470 Ohm Resistor 1/4 W 4700 Ohm Resistor 1/ 4 W 47K Resistor 1/4W 680 Ohm Resistor 1/4W 6800 Ohm Resistor 1/4W 9100 Ohm Resistor Variable 5OOK Cap. Mylar Dipped .luF (1OOV) Cap. Ceramic Disc 47pF (50V) Cap. Ceramic Disc 22pF (50V) Cap. Ceramic Disc 220pF (50V) . 2B-007 Cap. Ceramic Disc. OluF (50V) Locator Not Packaged Not Packaged Not packaged Packaged Packaged Packaged Packaged Packaged (Alternate listed) Packaged (Alternate for PIN CA014034) Packaged (CX262 Pack) R202,205 R208,212,214 R225,226,234 R222 R203,216,227-321 R209,233 R204 R206,217,223 R200 R218-221 R20 1 R207,232 R224 R213 R215 R210 R211 C204 C211,212 C213 C236,237 (Alternate for P/N C014180-05) C200,202,205,208, 21 4,223-227,239,240 2600/2600A Domestic VCS CX2600 DOMESTIC (M/N) VCS PARTS LIST (Continued) Part No. Mother 2B-008 Description Cap. Ceramic Disc .001 uF (5OV) Mother Mother Mother Mother Mother Cap. Ceramic Disc 150pF (50V) Cap. Ceramic Disc. l uF (50V) Diode IN914 . Transistor 2N3906 Transistor 2N3563 Mother Transistor MPS3563 Mother Mother Mother Mother Nlother Jack CX2600 PC Board . Cartridge Socket Assy Zener ~ i o d e / A x i a lWrap Assy Crystal 3.579575 Mhz iMother Mother Mother Mother Socket Cartridge Cap. Electrolytic 4.7uF (35V) IC TIA Socket Controller (9 Pin) Mother Socket Controller (9 Pin) Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother IC CPU (6507) IC RAM (6532) Dust Cover Socket Connector (12/24) Pad Cartridge Socket IC Hex Buffer (4050B) Cap. Polystyrene 820pF (50V) Inductor 2 uF Inductor 12 112 Turn Socket Assy (AID) Cable Ribbon ( 12 conductor) Cap. Axial 200pF (50V) Mother Mother Mother Mother Mother Cap. Epoxy Dipped .068uF (100V) Ferrite Bead Socket IC (28 Pin) Socket IC (40 Pin) Crystal 3.579575 Mhz Mother Mother Mother Mother Rivet Diode Zener 1N4736 (6.2V) Transistor 2N3906 CX2600 PC Board (MOTHER) Locator C203,209,222,228235,238 C22 1 C210,219,220 CR200,20 1 Q200,20 1 4202 (Alternate Listed) 4202 (Alternate for P/N 34-2N3563) 3204 X200 (Alternate Listed) C20 1 A20 1 3202,203 (Alternate Listed) 3202,203 (Alternate for PIN C010448) A200 A202 C236,237 (Alternate listed) C215-218 L200,203 A200 A20 1,202 X200 (Alternate for P/N C010177) 2600/2600A Domestic VCS .r4 CX2600 DOMESTIC (M/N) VCS PARTS LIST (Continued) Part No. Description Mother Mother Mother Paddle Paddle Paddle Paddle Paddle P addle Paddle Paddle Paddle Paddle Paddle Paddle Paddle Paddle Paddle Switch Switch Switch Switch Switch Switch Switch Electronic Module Assy Cartridge Socket Assy Zener DiodeIAxial Wrap Assy Speed Clip Fastener Nut Lockwasher Knob Resistor Variable 1 Meg Top Cover Bottom Cover Fire Button Cable Y Control Sleeve Paddle Label Control Knob Assy Control Cable Assy Paddle Control Assy Switch Resistor 2 W 680 Ohm Cap. Poly Film .22uF (IOOV) Cap. Ceramic Disc .OluF (50V) Heat Sink Socket Phono Jumper (1 IAWC) Switch Slide Switch Switch DPST - Spring Return Switch Switch Switch Switch Switch Dust Cover Inductor l5uH Heat Sink Switch SPDT Switch C012242 Switch SPDT Switch C014348 Regulator 78MO5 (TO-220) Switch Switch Switch Switch Switch Switch C014372 C014373 CO 14778-03 C017294 C017297 C019025 Cap. Electrolytic 4.7 uF (35V) Cap. Elect Axial 2200uF (16V) Socket (12 Pin in-line) 3 Switch Static Strip 2 Switch Static Strip Switch Slide Locator RlO 1 (Ch 3 version) C103,104 C101,102 (Ch 3 version) 5102 S101-104 (Alternate listed) S105,106 (Alternate listed) L101,102 (Ch2-3 version) S107 (Alternate listed) 5107 (Alternate for P/N C012241) listed) A101 ClO5 C106 JlOl S10 1-1 04 (Alternate for P/N C0 10373) 2600/2600A Domestic VCS Changed per ECN lr(0021 1 /79/27 CX2600 DOMESTIC (M/N)VCS PARTS LIST (Continued) Part No. . Description Locator Switch CO 19026 Switch DPST 5105,106 (Alternate for PIN C0 10388) 5 Pin (Ch 2-3 version) 3 Pin (Ch 3 version) Switch CA012174 RF Module Assy Switch CA012175 RF Module Assy Switch CA012233 PC Board Assy (Switch) X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl C010726 CO12107-02 C012108-02 C012109 C012110 C012114 C012116 C012951 CAO 15396 CAOl674l Cable Top Cover Bottom Case Boot . Retainer Ring Fire Button Handle Spring PC Board (Two-Edged Connection) PC Board (Single-Edge Connection) 2600/2600A Domestic VCS CX2600A DOMESTIC (MINI VCS PARTS LIST Part No. p Description Bezel Bezel Bezel Console Console Console Console Bezel Bezel Label Bezel Assy Rubber F e e t Console Top Console Base Console Base Console Fina4 Final Final Final Final Final Final Console Base Assy AC Power Adaptor TV Switch Box Key board Controller Dr iv ing Controller Paddle Controller X-Y Controller AC Power Adaptor Final Final Final CX2600A VCS CX2600A VCS AC Power Adaptor Final Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother Mother TV Switch Box Resistor 114W 1 K Resistor 1/4W 10K Resistor 1/4W 11OK Resistor 1/4 W 15K Resistor 1/4W 1.8K Resistor 1/4W 18K Resistor 14W 220 Ohm Resistor 1/4 W 2.2K Resistor 1/4W 240 Ohm Resistor 1/4 W 24K Resistor 1/4W 27K Resistor 1/4W 3300 Ohm Resistor 1/4 W 4.7 K Resistor 1/4W 47 Ohm Resistor l/4W 470K Resistor l/4W 6800 Ohm Resistor 1/4W 820 Ohm Resistor 1/4W 91 Ohm Resistor 1/4W 9100 Ohm Resistor Variable 500K Cap. Poly Film .luF (100V) Cap. Poly Film .22uF (100V) Cap. Ceramic Disc 1OpF (50V) Locator (Alternate listed) (Alternate for P/N C016398) (Not Packaged) (Not Packaged) (Packaged) (Packaged) (Packaged) (Packaged) Packaged (Alternate listed) (Packaged) (Not packaged) Packaged (Alternate for PIN CA014034) Packaged (CX262 Pack) R202,206,211,228 R223,226,229,230 R216 R222 R209 R207 R204,224,225,232 R203 R205 R217,227 R214 R218,220 R201,212,219,221 R215 R233 R210 R234 R23 1 R208 R213 C241 C204 C202 (Alternate listed) 2600/2600A Domestic VCS CX2600A DOMESTIC (M/N) VCS PARTS LIST (Continued) Part No. Locator Description C209,210 C211 (Alternate listed) C216,217 (Alternate listed) C2O3,2O5,212,236, 237,240,244 (Alternate listed) C213,223-235 (Alternate listed) C2 15 (Alternate listed) C200,208,222,238, 239,245 (Alternate listed) CR200-203 4202 3204 J2O 1 Mother Mother 2A-008 2A-018 Cap. Ceramic Disc 47pF (50V) Cap. Ceramic Axial 22pF (50V) Mother 2B-003 Cap. Ceramic Disc 470pF (50V) Mother 2B-007 Cap. Ceramic Disc .OluF (50V) Mother 2B-008 Cap. Ceramic Disc -001uF (50V) Mother 2~-009 Cap. Ceramic Disc 150pF (50V) 2C-001 Cap. Ceramic Disc .luF (50V) !Mother Mother Mother Mother Mother Mother 31-lN914 34-2N3563 79-5903 79-591 8 A003647 C010177 Diode 1N9l4 Transistor 2N3563 Connector Phono Jack Connector Jack (3.5mm) R F Cable Assy Crystal 3.579575 Mhz Mother Mother Mother Mother C010373 C010388 C010444 C010448 Switch Slide (DPDT) Switch Slide (DP Spring Return) IC TIA Socket Controller (9 Pin) Mother C010727 Socket Controller (9 Pin) Mother Mother Mother Mother Mother Mother Mother Mother Mother C010745 C010750 C010776 COl0812 C010813 C010821 C010823 C01224l C014179-01 IC MPU (6507) Mother C014179-03 Cap. Ceramic Axial lOpF (50V) Mother C014179-05 Cap. Ceramic Axial 47pF (50V) Mother CO14180-04 Cap. Ceramic Axial 150pF (50V) ,- IC (6532) Dust Cover Socket Pad Cartridge Socket Dust Cover Cap. Polystyrene 820pF (50V) Inductor Variable 0.85-l..2uH Switch Slide (PCB) Cap. Ceramic Axial 22pF (50V) X200 (Alternate for PIN COl55lO) S201,204 S202,203 A20 1 3202,203 (Alternate listed) J202,203 (Alternate for P/N C0 10448) A200 A202 3200 (Part of) 3200 (Part of) Used on Switches C206,207 L20 1 S200,205,206 C211 (Alternate for P/N 2A-018) C202 (Alternate for P/N 2A-003) C209,210 (Alternate for PIN 2A-008) C215 (Alternate for PIN 2B-009) 2600/2600A Domestic VCS - CX2600A DOMESTIC (M/N) VCS PARTS LIST (Continued) p p Locator &Y Part No. Mother CO14180-07 Cap. Ceramic Axial 470pF (50V) Mother C014181-01 Cap. Ceramic Axial .001uF (25V) Mother CO14181-02 Cap. Ceramic Axial .O 1uF (25V) Mother CO14181-03 Cap. Ceramic Axial .luf (25V) Mother C014348 Voltage Regulator 78M05 (5V) Mother Mother Mother Mother Mother Mother Mother C014353 C014369 C014373 C014384 CO14386-08 CO14386-09 C015510 Cap. Epoxy Dipped .068uF (IOOV) Cap. Elec 4.7uF (35V) Cap. Elec 22OOuF (16V) Inductor Ferrite Bead Socket IC (28 Pin) Socket IC (40 Pin) Crystal 3.579575 Mhz Mother C015519 P C Board Mother Mother Mother Mother Mother Mother Mother C013 5 7 3 CO 1.5574 CO 1.5575 CO1.5752 C01.5902 CO 1.7297 CO I.7549 Socket Cartridge Shield Top Shield Bottom Inductor 1.8uH Connector 12114 2 Switch Static Strip Switch Slide (PCB) Mother Mother Mother Mother Mother Mother mother Mother Paddle Paddle Paddle Paddle Paddle Description Transistor 2N3906 IC Timer (555) Dust Cover Assy R F Module Socket Assy (Cartridge) CX2600A PC Board Assy PCB/Shield Assy Zener Diode/Axial Wrap Assy Speed Clip Fastener Nut Lockwasher C216,217 (Alternate for P/N 2B-003) C213,223-235 (Alternate for P / N 2B-008) C2O3,ZO5,212,236, 237,240,244 (Alternate for P/N 2B-007) C200,208,222,238, 239,242,245 (Alternate for P/N 2C-001) A203 C2 18-22 1 C214 C243 L200,203-205 XA200 XA20 1,202 X200 (Alternate listed) (Use Rev 16 or above) 5200 (Part of) L202 3200 (Part of) S200,205,206, (Alternate for P/N C012241) 4200,201 A205 5 Pin Version 5200 Knob Resistor Variable 1 Meg 2600/2600A Domestic VCS Changed per ECN #0021 1 /39/R3 CX2600A DOMESnC (MIN) VCS PARTS LIST (Continued) Assv Part No. Paddle Paddle Paddle Paddle Paddle Paddle Paddle Paddle Paddle Paddle X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl X-Y Cntl C010737 C010738 C010739 COl08lO C010970 COl2766 CA010837 CA010933 CA0 10953-03 CAO 11620-0 1 C010726 C012107-02 C012108-02 C012109 C012110 C012ll4 C012116 C012951 CAOlS396 CAO16741 Description Locator Cover Top Cover Bottom Fire Button Cable Y Control Sleeve Label Paddle Control Knob Assy Control Cable Assy Paddle Control Assy Switch Cable Cover Top Case Bottom Boot Retainer Ring Fire Button Handle Spring PC Board (Two-Edged Connection) PC Board (Single-Edge Connection) 2600/2600A Domestic VCS SECTION 6 INDEX AUDIO TONES BATTERY ELIMINATOR BLOCK DIAGRAM COLOR BAR TEST CONSOLE DEFECTIVE RAM PROCEDURES DIAGNOSTIC FLOWCHART DIAGNOSTIC MATRIX DIAGNOSTIC MATRIX TEST DISPLAY, NO DRIVING CONTROLLER GAME PADDLE GRAY BAR TEST JOYSTICK KEYBOARD CONTROLLER MOTHER BOARD mu OPTION SWITCHES PADDLE CONTROL LINES PADDLE CONTROLLER PADDLE LINES TEST PARTS LIST POWER SUPPLY RAM, DEFECTIVE PROCEDURES RAM, I/O RF CABLE RF MODULE RIBBON CABLE STATIC MODIFICATIONS NTSC SECTION 7 TECHNICAL TIPS TECH TIP 11 '1 Green 5200 On e a r l y production 2 6 0 0 ' s t h e 5200 i s g r e e n . We found t h a t it i s a very u n r e l i a b l e connector a f t e r many i n s e r t i o n s . T h i s appears t o you as a game t h a t sometimes does n o t work w i t h a c a r t r i d g e . Replace t h e connector. TECH TIP #2 Audio F a i l u r e s On Audio F a i l u r e s t h e primary s u s p e c t s a r e t h e two polystyrene caps C206/C207. By p u t t i n g p r e s s u r e on t h e sound caps t h e audio may come on a g a i n . Always r e p l a c e b o t h caps when you r e p l a c e one. TECH TIP #3 Kludge I n some o f t h e e a r l y p r o d u c t i o n games you n o t i c e a inductor and cap o v e r C201 & R206. This was t o cure a problem on a c a r t r i d g e then, b u t i s now no l o n g e r needed- Cut t h e i n d u c t o r and cap o u t being c a r e f u l n o t t o c u t t h e R206 l e a d . TECH TIP 114 Molex Sockets Chip s o c k e t s made by Molex have a low r e t e n t i o n v a l u e i n some c a s e s . This may cause an i n t e r m i t t e n t c o l o r o r g r a p h i c s problem. A l l s o c k e t s with i n s e r t i o n a i d s should have. t h e i n s e r t i o n a i d removed and t h e c h i p reinserted. NTS C TECH TIP jfi5 F l o a t i n a Ground on 2600 If t h e ground s i g n a l has a l o t o f n o i s e on it (approx. 1 v.) check c o n t i n u i t y on p i n s 3 , 6 , and 10 on the 5101. TECH T I P 86 L e f t Paddle F a i l u r e E a r l y p r o d u c t i o n 2600 mother e r r o r which was c o r r e c t e d by i n s u l a t e s t h e t r a c e from t h e The dot i s l o c a t e d under t h e be completely covered. b o a r d s (Rev 8 and l o w e r ) had an artwork p l a c i n g a d o t o v e r t h e t r a c e . This c a s t i n g and should always b e on the board. 5200 upper l e f t c o r n e r , and the t r a c e should TECH T I P i1/7 Indy 500 I f a u n i t works on everything except Indy 500 then p i n 23 o f the A202 i s probably s h o r t e d t o a d a t a l i n e . TECH TIP #8 Power Jacks A l l power jacks s h o u l d be t e s t e d f o r a snug f i t . When t h e game i s on, l i g h t l y move power p l u g i n a s m a l l c i r c l e , i f the p i c t u r e goes o f f , r e p l a c e t h e j a c k with a new one. TECH T I P #9 Check a l l 9-Pin connectors (5202, 5203) f o r pushed o r broken pins. Replace a l l showing problems. TECH TIP #10 R-220 Check t h a t R220 i s p r o p e r l y s o l d e r e d . i n t e r m i t t e n t g r a y b a r problems. If t h e y a r e n ' t , t h e y w i l l cause TECH TIP #Ill Solder Check Check s o l d e r on t h e f o l l o w i n g components: C210, C211, C203, C220, C212, C208, and C209. Long miscues on t h e s e caps prevented them from b e i n g s o l d e r e d p r o p e r l y , c a u s i n g i n t e r m i t t e n t problems on t h e board. TECH TIP #12 Hex Buffers The 4050 (A203) on t h e 2600 should be one of t h e f i r s t t h i n g s checked for any of t h e f o l l o w i n g problems: any t r i g g e r problem, no Sync., l o s e of lum l i n e s . T h i s i s t h e reason f o r a high percentage of r e t u r n s . TECH TIP ill3 5201 and JlOl on t h e 2600 Both of t h e s e c o n n e c t o r s should be checked f o r a good, s e c u r e fit. TECH T I P #14 Crooked Switches I n s p e c t switches on 2600 switchboard t o i n s u r e t h a t they s e t f l a t and perpendicular t o t h e board. Reset a l l switches which are n o t . NTSC TECH TIP #15 L200 and C h i c k l e t s on 2600/2600A Be sure when assembling t h e mother board i n t o t h e c a s t i n g t h a t the- L200 and c h i c k l e t s a r e back under t h e shroud of t h e c a s t i n g . TECH TIP #16 Make s u r e the, L201 core has a snug fit o r e l s e when 4.5 MHz i s s e t , t h e c o r e can s l i p i n handling. Also, some L201 cores be frozen o r cracked i n the j a c k e t . Replacement i s necessary o n l y if t h e audio c a r r i e r frequency cannot be a d j u s t e d t o 4 . 5 H E h . TECH TIP 1/17 Reassembly When assembling t h e 2600 mother board i n t o c a s t i n g make s u r e C220 and C239 a r e pushed away from 5200 shroud. TECH TIP 7\18 Excess Lead Length Check lead length on model 2600 Taiwan games. Trim excessive l e a d length on t h e bottom of t h e mother board t o avoid s h o r t i n g on casting. TECH TIP 819 Regulator On e a r l y p r o d u c t i o n 2600 u n i t s with standup r e g u l a t o r and h e a t s i n k a s s e m b l i e s , i n s p e c t f o r h a i r l i n e f r a c t u r e s between t h e r e g u l a t o r and t h e switchboard. Also i n s u r e t h a t on e a r l y d o m e s t i c a l l y produced u n i t s t h e r e g u l a t o r i s f i r m l y secured t o t h e h e a t s i n k by a t i m e r m a n c l i p . NTSC Consumer Product Service Manager of Tehnical Support - - TECH TIP number 2 SUBJEm. Blanking Resistor DESCRIPTION: T h e Rev. 4 CX2800 P C B h a s a n 820 Ohm resistor soldered across pins 6 and 9 of U2 (TIA) on t h e soldered s i d e (bottom). This resistor improves t h e g a m e color and m u s t no tbe removed. Rev. 5 and above CX2800 PCB have this resistor incorporated in t h e i r design. DIFFICULTY REPORTING: If you need further clarification concerning t h i s Tech Tip, call t h e ATARI Tech-Line Specialist. Inside California (800) 672-1 466 Outside California (800) 538-1 535 Consumer Product Service Manager o f Tehnical Support TECH TIP MODEL: number -3- DATE: rX78MI SUBJECT: Switchcaps DESCRIPTION: If a t power-up two switches a r e activated a t t h e s a m e t i m e (indicated by both the Joystick and Paddle, or Novice and Expert LED'S "on" at t h e s a m e time), you must shorten t h e switchcap hand ends with sand paper, to eliminate binding. If t h e switchcaps seem to b e binding when 'activated on Rev. 4 PCBs, tilt t h e momentary switches (S2-S9) toward t h e player port side of t h e board so t h a t t h e r e is a .030 inch gap between t h e board and t h e leading edge of t h e switch bottom (a manual approximation is usually successful). Some Rev. 4 PCB's have a shim glued t o t h e PCB t o c o r r e c t this problem. DIFFICULTY EPORTING: If you need further clarification concerning this Tech Tip, call t h e ATARI Tech-Line Specialist: Inside California (800) 672-1466 Outside California (800) 538-1535 Consumer Product Service Manager ofaTehnical Support TECH TIP number - MODEL: - DATE: OOA --- - - 4 - - 1 /17/87 Blanking Resistor Some 2600A PCBs have an 820 1/4 W 5% resistor (P/N 14-5821) installed on t h e solder side (bottom). The resistor is located between pins 6 and 9 of A201 (TIA) and improves t h e color reproduction of t h e unit. T h e resistor may b e added t o existing 2600A units at your discretion and t h e customer's expense. The addition will result in improved color saturation. Rev. 16 PCBs and above will have t h e resistor incorporated into their design. DIFFICULTY REPORTING: If you need further clarification concerning this Tech Tip, call t h e ATARI Tech-Line Specialist: Inside California (800) 672-1466 Outside California (800) 538-1535 . Consumer Product Service Manager o f Tehnical Support TECH TIP MODEL: CX2800 I number DATE: 5 11/17/82 SUBJECT: Switch Shorting T h e Rev. 4 CX2800 PCB s w i t c h S 1 (On/Off) has a m e t a l standoff t h a t may short t o t h e t r a c e beneath t h e switch. T o prevent shorting, place a small piece of insulating t a p e on t h e board beneath t h e switch. PCB t o Rev. 4 and above have t h e t r a c e s rerouted. DIFFICULTY REPORTING: If you need further clarification concerning this Tech Tip, call t h e ATARI Tech-Line Specialist: Inside California (800) 672-1466 Outside California (800) 538-1535 -Metal Standoff Consumer Product Service VCS Manager of Technical Support SER ICE BULLETIN ATARI" , MODEL: DATE:DEC 9 , 1 9 8 1 2600 V i d e o C o m p u t e r S y s t e m PROBLEM C o m p a t a b i l i t y problems between t h e cable and c o n n e c t o r s l i n k i n g 2600 Mother Board t o t h e s w i t c h b o a r d . CAUSE Two types o f 1 2 - c o n d u c t o r c a b l e a s s e m b l i e s h a v e b e e n used o n Model 2 6 0 0 u n i t s : " A flat-wire " A r i b b o n c a b l e w i t h a male c o n n e c t o r which p l u g s i n t o a female, 12-pin i n - l i n e s o c k e t on t h e switch board. t y p e c a b l e , w i t h female c o n n e c t o r ( s e e F i g u r e 8-11 w h i c h p l u g s i n t o a male 1 2 - p i n i n - l i n e c o n n e c t o r o n the switch board. F i g u r e 8-1. SOLUTION Flat-wire Type Cable or When a defect . i s f c u n d i n t h e f l a t - w i r e t y p e c a b l e a s s e m b l y i t s male c o n n e c t o r o n t h e s w i t c h b o a r d , t h e f l a t - w i r e c a b l e a s s e m b l y s h o u l d be r e p l a c e d w i t h t h e r i b b o n c a b l e a s s e m b l y ( p a r t number C012776) a n d t h e 1 2 - p i n m a l e s w i t c h b o a r d c o n n e c t o r s h o u l d be r e p l a c e d w i t h t h e 1 2 - p i n f e m a l e s w i t c h b o a r d s o c k e t ( p a r t number C 0 1 4 7 7 8 - 0 3 ) . Consumer Product Service VCS Manager of Technical Support Jh ATARI" SERVICE BULLETIN / 2600A Video Computer System MODEL: DATE: February V , 1982 PROBLEM - - -- RF Interference t h a t does not c l e a r up using normal a d j u s t m e n t methods. -- A series of lines and bright grid distortions o n t h e s c r e e n accompanied by a loud hum on t h e audio c a r r i e r even when t h e audio and video a r e properly adjusted. T h e above problems m a y temporarily disappear when t h e unit is turned off f o r a few minutes and then turned on again. CAUSE These 2600A problems have been diagnosed by A t a r i as being caused by a leaking o r d e f e c t i v e C24l (.I microfarad) a n d l o r C242 (.I microfarad) l o c a t e d between t h e power jack and voltage regulator. SOLUTION Replace t h e d e f e c t i v e components with o n e s f r o m your kit. Make certain t h e replacement components a r e r a t e d a t a v a l u e 50V o r greater. Consumer Product Service VCS Manager of Technical Support Jh ATARI" MODEL: SERVICE BULLETIN 2600 Video Computer System I DATE: February 18,1982 PROBLEM Damage t o Hex Buffer, and other components CAUSE S t a t i c discharge SOLUTION To provide protection from s t a t i c discharge a Zener diode must be placed between t h e trigger lines and ground. Also, s t a t i c strips must b e placed on the switches of the switchboard. (Refer t o pages 3-3 thru 3-5 of your ATARI VIDEO COMPUTER FIELD SERVICE MANUAL DOMESTIC MODEL 2600/2600A.) T h e p a r t number f o r t h e Zener ~ i o d e / A x i a lCap. Assembly is CA018263 and can b e ordered (at no charge to you) from Sales Order Processing, Sunnyvale, a f t e r March 8, 1982. You should have the static strips (Part Numbers C017294 and C017297) in c u r r e n t p a r t s inventory. If you d o not, please order t h e m when you order t h e Zener/Axial Assembly.
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File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.5 Linearized : Yes Create Date : 2005:01:03 17:03:39-08:00 Creator : Adobe Acrobat 6.0 Modify Date : 2011:10:20 09:47:07-07:00 Has XFA : No Tagged PDF : No XMP Toolkit : Adobe XMP Core 5.2-c001 63.139439, 2010/09/27-13:37:26 Producer : Adobe Acrobat 6.0 Paper Capture Plug-in Metadata Date : 2011:10:20 09:47:07-07:00 Creator Tool : Adobe Acrobat 6.0 Document ID : uuid:2e795bdd-45f5-4dd7-9b54-715047d11876 Instance ID : uuid:514feffc-dbf3-429c-89a7-217575f7c480 Format : application/pdf Title : ATARI 2600/2600A VCS Domestic Field Service Manual; FD100133, Rev.02 Page Layout : SinglePage Page Mode : UseOutlines Page Count : 156EXIF Metadata provided by EXIF.tools