Atari CX 5200 Field Service Manual
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Atari CX 5200 Field Service Manual

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ex 5200™
FIELD SERVICE
MANUAL
FDI00127
Rev. 4"
July
1983

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Summary of Contents for Atari CX 5200

  • Page 1 ex 5200™ FIELD SERVICE MANUAL FDI00127 Rev. 4" July 1983...
  • Page 2 COPYRIGHT 1983 BY ATARI, INC. ALL RIGHTS RESERVED. No part of this publication may be reproduced by any mechanical, photographic, or electronic process, or in the form of a phonographic recording, nor may it be stored in a retrieval system, transmitted, or otherwise copied for public or private use, without permission from AT A RI, Inc.
  • Page 3 E. C.R. A TARI, INC. ENGINEERING CHANGE REQUEST Consumer Product Serv ice 845 W. Maude Avenue THIS PART NO. Sunnyvale, CA 94041 REV. �TARI� 6/21/83 S. Doyle FDI00127 )ESCRIPTION C HANGE: Replace the cover. Replace the Table of C on ten ts, pages Replace the Introduction, page vi.
  • Page 4 A T A R I ADVA N CED VID E O E N TE R TAI N ME N T SY S TEM M O D E L 2 0 0 ™ F IE L D SERVI CE MA N UA L...
  • Page 5 A tari believes that the information described in this manual is accurate and reliable, and much care has been taken in its preparation. However, no responsibility, financial or otherwise, shall be accepted for any consequences arising out of the use of this material.

  • Page 6: Table Of Contents

    T ABLE O F CO NTE NTS Title Section INTRODUCTION • 1- 1 THEOR Y OF OP ERA TION 1- 1 Overview 1- 1 Model 5200 Console Four-Port Universal PCB differences 1- 1 Two-Port Universal PCB differences Outer Case RF Shield PC Board Microprocessor Chip - MPU Alphanumeric Television Interface...
  • Page 7 3 A-9 P OKE Y Softfire Test 3 A-10 4-PORT 5200 DIAGNOSTIC FLOWCHA RT Overview The Swap-out Procedure Replace in Order ATARI Repair Hotline 2-PORT 5200 DIAGNOSTIC FLOWCHA RT 4A-l 4A- l Swapout Procedure 4A-l Replace In Order AT A RI Repair Hotline 4A-l •...
  • Page 8 T ABLE OF C N T E NTS Title Section Controller Testing Controller Testing without a Model 5200 Console Failures POT Arm Alignment Procedure Controller Disassembly/Assembly 6-10 6-13 CX52 Game Controller Schematic 7 -1 CX53 Trakball • PARTS LIST SER VICE B ULLETINS LIST OF ILLUSTRA nONS Title...
  • Page 9 T ABLE OF CONTE NTS LIST OF ILLUSTRATIO NS Titl Color Bars Screen 3 -2 Gray Bar Screen 3 -3 Any Video Screen 3 -7 Pokey Adjust Test Screen 3 -4 3 -5 Error Summary Color Bars Screen 3 A- l 3 A-4 Gray Bar Screen 3 A-2...

  • Page 10: Introduction

    INTRODUCTION The Atari Advanced Video Entertainment System (Model 5200) Field Service Manual is a reference guide for you, the service technician. This Field Service Manual is organized in twelve sections: • THEORY OF OPERATION - Overview of how the Model 5200 works and what its basic assemblies look like.

  • Page 11: Overview

    "--port universal PCB and the 2-port universal PCB are called out below. Four-Port Universal PCB differences: External The ATARI serial number on the bottom of the unit will have a + as its third designator. For example: CITE CODE DA TE ,-L--.

  • Page 12: Two-Port Universal Pcb Differences

    Two-Port Universal PCB differences: All of the 4--port universal board differences listed above are included on the 2-port universal PCB. Ports 3 and 4- and their associated discrete components have been removed. rcs A12 and A l 3 have been removed. The automatic switch box has been replaced with a manual switchbox and the RF cable has been replaced with the standard RF cable.

  • Page 13: Outer Case

    Outer Case The outer case consists of a bottom and a top plastic cover which are held together by five Phillips-head screws. At the rear of the bottom plastic cover (Figure 1-2) is: an opening for access to the channel 2-3 switch a removable door which allows access for future development.

  • Page 14: Pc Board

    PC Board inal The console you are contain either the o ri Board Number servlcmg may or the Boards Numbers CAOl8087 newer PC CA020l08 CA021374. See Page 1-1 this manual for explanation of the three board's differences. The P C Board consists of: •...
  • Page 15 The primary function of the Alphanumeric Television Interface Controller (ANTIC) chip is to get data from memory, independent of the processor, for display on the video screen. Figure 1-4 shows the pin assignments for the ANTIC. Data Bus GROUND • Data Bus AN�...

  • Page 16: Graphic Television Interface Adaptor (Gtia)

    The Pot Keyboard Integrated Circuit (POKEY) chip provides the interface between the game ports and the microprocessor. It also contains four semi-independent audio channels, each with its own frequency, noise, and volume control. Figure 1- 6 shows the pin assignments of the POKEY. CX 5200 Field Service Manual...

  • Page 17: Switchbox

    A switchbox is connected and mounted to the back of the television set. switch box that is used with the 4-Port Models is different from other switchboxes manuf a ctured by Atari and from the 2-Port Model 5200. These differences include: power for the Model 5200 supplied through the switch box two Select Switch functions.

  • Page 18: Game Controller

    GA ME CON TR OLLER The game controller supplied with the Model 5200 is composed of an analog joystick, a 12-key Keypad, two separate Fire Buttons on each side, and three Select Buttons. game controller is discussed in detail in Section 6. SUMMARY The Model 5200 is an advanced microcomputer which receives input from the Game Controllers, Read-Only-Memory (ROM) cartridges, and other peripherals.

  • Page 19: Silkscreens And Schematics

    SECTION SILKSCREENS AND SCHEMATICS On the following pages are representative silkscreens and schematics for the Model Minor variations in design may be encountered depending on the production d ate 5200. unit, these schematics provide details required in-depth understanding of all Model 5200 units. CX5200 Field Service Manual...
  • Page 20 C14. COL 5T8 COL STB COL 5T8 COL 5T8'S ROWOATA ROW DATA ROW DATA ROW OATA PORT POT 6 TRIGJ ·CAV Page 2-4B Add SF3 between + CA V + 5 V on Port 4. CX 5200 Field Service Manual...

  • Page 38: 4-Port Model 5200 Testing

    SECTION 3 4-PORT MODEL 5200 TESTING You require six basic pieces of equipment in order to analyze failures in the Model 5200. These items include: 1 5 MHz oscilloscope • Diagnostic Cartridge (version 1 . 1 ) • Model 5200 Port Board (Loop Back Board) •...
  • Page 39 The Model 5 200 tests are run using the Port Board (Loop Back Board) which auto matically cy cles through all of the tests. If a test fails: turn the unit off, remove the Port Board, plug a game controller into Port and turn the unit back on.

  • Page 40: Power-Up Screen

    POWER-UP SCREEN The Power-up screen appears in a few seconds. It displays infor mation about the inner workings of the unit. This screen shows: The type of TIA in the unit. NTSC appears if the GTIA is the proper one •...

  • Page 41: Color Bar Test

    Picture In this failure, the power-up screen appears bent to one side with a ragged edge. The picture may roll or slide down and to the left of the screen. This means that the sync. signal broadcast by the GTIA is probably not functioning. Another possible cause is that the unit is not set on the same channel as the T.V.

  • Page 42: Gray Bar Test

    NOTE: This figure is a black and white representation a color television screen. RE FE RE NC E BA R Color Bars Screen F igure 3- 1 Diagnostic Flowchart Entry P o int: Pg. 4 - 1 4 . GRAY BAR TEST Purpose : To test the function of the luminescence lines (LMO , LM1, LM2) •...

  • Page 43: Anyvideo Screen

    F igure 3-2 . Gray Bar Screen Diagnostic Flowchart Entry Point: Pg. 4-1 6. ANYVIDEO SCREEN Purpose : To test the video generation o f the GTIA and ANTIC chips. • For mat: The screen should have a b lack background with eight vertical •...

  • Page 44: Pokey Adjust

    N OTE: Figure 3-3 is a black and white representation of a colored screen. Figure 3-3. Any V ideo Test Screen If the Any Video test fails, swapout U3, U5. POKEY ADJUST Purpose: To check the value of the pot line for the controller ports. •...

  • Page 45: Error Summary

    Figure shows a sample Pokey Adjust screen. The values on y our screen NOTE: d iffer from those shown in Figure 3-4. VERT 1 1 2 1 07 1 1 0 1 1 5 1 1 0 1 1 8 1 1 0 1 1 0 Figure 3-4.

  • Page 46: Diagnostic Error Codes

    Table 3- 1 Reference Page Failure Failure Code R A M Test, P g. 3-1 0 RAM - Chip 1 - U25 RAM - Chip 2 - U 2 4 " RAM - Chip 3 - U 23 " RAM - Chip 4 - U 22 "...

  • Page 47: Ram Test

    RAM TEST Purpose: To test the 16K RAM chips for proper functioning. • For mat: This test takes approximately lO seconds during which the screen • is solid black. At the end of this time period, if the test has failed, a Failure Code number appears on the screen to signify which chip is defective.

  • Page 48: Cx5200 Field Service Manual Iii Changed By

    SECTION 2-PORT MODEL 5200 TESTING You require seven basic pieces of equipment in or der to analyze failures in the M odel 5200 2-port. These item s include: 1 5 MHz oscilloscope • D iagnostic Cartridge (version 1 . 1 ) •...
  • Page 49 P lug a game controller into port of the 5200. • Insert the Diagnostic Cartridge (Version 1 . 1 ) . • Turn on the T . V. (Select Channel 2 or 3) and the 5200. • P ress the * or key follo wed by the start key to display this menu on the screen.
  • Page 50 S olid Colored (Black) Screen or Vertically Lined Screen If a solid colored (Black) or vertically lined screen appears, the unit is suffering a catastrophic failure. This means that the unit is no t functionin g well eno ugh to even return a sim ple display.
  • Page 51 COLOR BAR TEST Purpose: To test the GTIA chip and associated color circuitr y for correct • operation. Procedure: P ress key 2 followed by STA RT. • Format: A screen of horizontal color bars displays (see Figure 3A- O . The •...
  • Page 52 GRAY BAR TEST Purpose: To test the functioning of the luminescence lines ( L M 1 , L M2 , • L M 3 ) from the GTlA chip. Procedure : P ress key 3 followed by STA RT. • Format: Eight horizontal gray bars are displayed, going from black at the •...

  • Page 53: Any Video Screen

    ANY VIDEO SCREE N Purpose: To test the video generation of the GTIA and A N TIC chips. • Procedure: P ress key followed by START. • Format: The screen should have a black background with eight vertical • bars. H alf of the v er tical bars should narrow and the other half much wider.
  • Page 54 VERIFY OS Purpose: To test the OS ROM (AS) for proper functioning. • Procedure: P ress key 8 followed by START. • For m at: If error code 30 appears on the Error Summar y (Figure 3-1 , pg. • 3-8) the OS ROM chip is d efective.
  • Page 55 POKEY (PORT) TEST Purpose: To determine any port line failures and confirm the correct • operation of the POKEY chip. Procedure: P ress key 5 followed by ST ART. • For m at: When you press the keys listed in the first column below , the •...

  • Page 56: Error Summary

    For mat: Each test lasts approximately ten seconds. The screen illustrated below • appears. If an error is listed on the screen, refer to Table 3- 1 , page 3-9, to det ermine which chip has failed. ERROR SUMMARY 000 0 . Numbe r of Test Failure Code Number of failures...
  • Page 57 If the unit canno t be adjusted or if values are out of ran g e, proceed to the F lowchart Entry P oint: Pg. 4A-20. POKEY SOFTFIRE TEST Connect the oscilloscope to pin 1 6 of A7 (l v/divisionjl O ms/div.). •...
  • Page 58 SECTION 4 • 4-PORT 5200 DIAGNOSTIC FLOWCHART The Diagnostic Flowchart is intended to easy to use and the primary aid when troubleshooting the 4-Port 5200. Follow the prompts in the order presented. When a question is asked, follow the lin e from the box that best applies to your unit's condition.
  • Page 59 Black Screen Troubleshooting Is there 5V on the P g .4--6 output of VR P g . 4-4 Is there 1.78975 Is there a 1.78975 MHz MHz signal on Pin 30 signal on Pin 29 of U 3 ? of U 5? I s there a 3.5795 MHz signal on Pin 28 of U 5? P g .
  • Page 60 Black Screen Troubleshooting (Cont.) Are the fo llowing voltages on the pins of the transistor: Q£ 3.5 V 3.5V Base Are voltages Rep lace Emitter 4 . 3 V 4.3V correct? transistor(s). Collector 1 .2 V Rep lace Check for open, Does unit shorted or wrong' function?
  • Page 61 3 ) R56 2) R57 Repai r ** * NOTE** * If y o u are servicing a unit containing P C B CA020 1 08 , chip designators have been changed from U to A. CX 5200 Field Service Manual...
  • Page 63 Black Screen Troubleshooting (Cont.) PCB /I "- Repair open between Is there 5V to all « « chip 5 or ground. ·5 chips? (See chart) &: (Check for bad socket) 1,21 .-\3 "5 .-\6 .-\9 Defective U or other i\ 1 Q Reset circuitry .
  • Page 65 Pin 15 of U18 -U25? Swapout 1) U17 2) U14 or defective R133,C1 40,R68 & ***NOTE*** If you are servicing a unit containing PCB CA020108 , chip designators have been changed from to A. CX 5200 Field Service Manual...
  • Page 66 Snowy Screen Troubleshooting Defective Is there to 12 volts RF Cable on the core of J3? 2) Switchbox 3) Battery Eliminator good? C4-8 (Do not short across) Defective Repair Is there on Pin 3 of 1) L1 3 the RF Module? RF Module or open between Pin 2 R F Rep' l ace...
  • Page 67 R58 or open trace to collector of Q8. Defective Repair Replace *** NOTE * * * If you are servicing a unIt containing PCB CA020 l08, chip designators have been changed from to A. 4-10 CX 5200 Field Service Manual...
  • Page 68 Snowy Screen Troubleshootin g (cont.) Replace Is Pin of U29(A26) Does Pin II of U29(A26) toggle each time 52 is pressed? Open trace or defective resistor or capaci tor in Repair trace. circuitry. Does Pin 6 of U29(A26) high when 52 is pressed and low when it is released? Check for possib Ie...
  • Page 69 Snowy Screen Troubleshooting cont.) Repair Is there + 5v on the Open Pin 3 VR2 to output of VR2? VCC2, +5B or +5F. Replace r---- If Pin 3 VR2 short to ground: Possible short in chips. Remove chips one-by-one and turn ·on unit. If modulation occurs, bad chip has been located.
  • Page 71 Color Troubleshooting Manually set unit onto color bars pattern. Is frequency of Y 1 Rep lace Y 1 3.5795. Does Pin 1 7 of U5 Defective ad just between 0 and 1 ) R8 6 volts when R8 is 2) CR2 adjusted.
  • Page 72 Color Troubleshooting (cont.) Is there a . 4v p-p Defective R28 or open signal on the base Trace R28 to Q3 . . of Q3? Is there a 4v p -p Is the signal present Defective R29. signal on the collector at approximately O V? of Q3? Is there a 3 volt p-p...
  • Page 73 &: Is pullup resistor Repair signal on the U2 pin? good? UI input. Swapout Repair 2) U2 Replace 3) U3 U.5 Pin IJ l.ine II VI Input UIOutput Pull u p Resistor CX 5200 4- 1 6 Field Service Manual...
  • Page 74 C I O I 3-1 1 R 1 1 2 HOR 4 4- 1 0 C I 0 0 R I 09 VERT 4 4- 1 1 C9 1 R 1 l 3 CX 5200 Field Service Manual 4- 1 7...
  • Page 76 Trigger Line Troub leshooting B6tto m F ire Button Defective: Is the U5 pin for the 1 ) U5 See chart. defective Port at +5 2) U 5 Socket volts with everything 3) Cap on tha t line. unplugged from the Port? Plug in controller.
  • Page 78 Keyboard Troub leshooting Is the failure on Port l? Manually select Pokey A djust Test. Are there 5v p-p square waves on Pin 6 of U9 - U 1 2? Page 4-26 Replace Are there 5v p-p square waves oli Pin 9 .oc 1 0 of U9-U 1 2? Which port failed? P ag e 4 - 2 5...
  • Page 79 Key board Troub leshooting (cont.) Replace U 2 7 Is ther e O v on Pin 6 Is there +5 on Pin s l ,2 , o f U 9 U1 i ? 4 &. 5 of U 2 7 ? &.
  • Page 80 Keyboard Troubleshooting (cant.) Swapout 1) U9 2) U 1 2 Does Port 2 pass? Check capacitors and resistors on P ins 1 -8 o f Port 2 for proper v alue & operation. R eplace if defective. *"'''' N OTE ''' '' ' * If you are servicing a unit containing P CB CA020 1 08 , chip designators have been changed from U to A.
  • Page 81 Keyboard Troubleshooting (cont.) Swapout 1 ) U 1 0 2) U 1 I Does Port 3 pass? Check capacitors & resistors on Pins 1 -8 of Port 3 . Replace if defective. ***N OTE ** * you are servicing a unit containing PCB CA020 1 08 , chip designators have been changed from U to A.
  • Page 82 Keybo.::l. r d Troub leshooting (cont.) Swapout 1 ) U 1 0 U 1 2 Does Port 4 pass? Check capacitors & resistor s on Pins 1 -8 of Port 4 . Replace if defective. * * * N OTE * * * I f y o u are servicing a unit containing P C B CA020 1 08 , chip designators have been changed from U to...
  • Page 83 Keyboard Troub leshoot in g (cont.) Swapout 1 ) U27 Are signals missing on 2) U9 U 9 and/or U 1 1 only ? 3) U l l Replace ***NO TE *** If you are servicing a unit containing PCB CA020 1 08 , chip designators have been changed from U to A .
  • Page 85 3A- 1 . N - Some lines terminate with an N inside a circle. W hen this occurs, call your Atari Repair Hotline. Inside California (800) 67 2 - 1 4 6 6...
  • Page 86 BLACK SCREEN TROUBLESHOOTING Repair open between Is there + 5V to all chip +5 or ground. &: chips? See chart Check for bad socket) 1 , 2 1 Defective A l or other reset circuitry connect- Is Pin 40 of A2 at 5V? ed to A2 pin 40.
  • Page 87 (Continued) BLACK SCREEN TROUBLESHOOTING Defective V R l or Is there approximately output short to 9V on the input of ground (possible VR 1 ? chip) Defective J2 or o pen Is there approximately :(!) between poin 9V on point of the t(1) V R2...
  • Page 88 BLACK SCREEN TROUBLESHOOTING (Continued) Repair open between there + 5V to all &: chip + 5 or ground. chips? (See chart) ( Check for bad socket) 1 ,2 1 D efective A l or other reset circuitry connect- Is Pin 4 0 of A2 at 5V? ed to A2 pin 40.
  • Page 89 BLACK SCREEN TROUBLESHOOTING (Continued) Are the following vo ltages on the p in s o f the transistor: ill. 3.5V 3.5V Base Are voltages Rep lace 4.3V 4.3V Em itter correct? transistor(s). 1 .2 V Collector Replace Vi . Check for open, Does unit shorted or wrong functio n ?
  • Page 91 Whenever the flowchart directs you to F, return to the beginning of the testing procedure in Section 3. Proceed until another error is encountered and you are again directed to enter the flowchart or until the unit has proven to be fully oper a tiona!.
  • Page 92 BLACK SCREEN TROUBLESHOOTING (Continued) Open Trace RAM Is there a data signal chip Pin 2 to A2 Repair or replace on Pin 2 of A l &-A25? defective RAM If only one chip is Isthere a data signal missing signal, replace on Pin 1 4 of A1 8-A25? that chip, if not proceed Swapout...
  • Page 94 SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING Is LED on? Is there 5VDC Defective LED or on the output of open from LED to VR2 or pin 3 of VR2. the R.F. m odulator? Is there at least +7VD C Defective V R2 or on the inpu t of VR2? shorted output VR2.
  • Page 95 SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING (Continued) Is there +5VDC Defective L 1 3 or on pin 3 of the open pin 3 R.F. R.F. m odule? to VR2. Is there gnd on Open R . F . pin 1 p ir:' 1 of R.F. m odule? to ground.
  • Page 96 SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING (Continued) Is the base of Q8 Defective Q8. at O.7-l .0VDC Is base of Q9 Defective Q9. at 9 - 1 5.0 VDC? Doe s Pin 1 1 of A26 Y es chan ge state s when Defective A26 switch S2 is depressed? Check condition of...
  • Page 97 WARPED, RAGGED PICTURE TROUBLESHOOTING Manually set 5200 on power - up screen. Is there a p-p signal on the leg of R22 connect Is R22 good? ed to Pin of A I ? Replace Is there a +5V p-p Open between P in signal on Pin at A I ? A l and R22.
  • Page 98 COLOR TROUBLESHOOTING Manually set unit onto colo r bars pattern. Is frequency of Y 1 Replace Y l 3.5795. Does Pin 1 7 of A5 Defective adjust between 0 and 1 ) R8 6 volts when R8 is 2) C R2 adjusted? 3) CR3 Defective...
  • Page 100 GRA Y BARS TROUBLESHOOTING Manually set the 5200 to the Gray Bars pattern. Defective R26,R2� Is there a +5Y p-p R25 or open between signal on the side of R26,R2�, or R25 and R25 con- R.F. Module Pin �. &: R26, R2�, nected to A 1 ? Reference the line...
  • Page 101 AUDI O TROUBLESHOOTING Is there a 4.5 Mhz signal on the emitter of Q4? *With audio test Swapout going is there a Does audio I ) A7 series of changing work? 2) A2 square waves on A7 Pin 37? Replace: O Cl 3 Yes ' 2) C I 4...
  • Page 102 TRIGGER LINE (BOTTOM FIRE BUTTON) TROUBLESHOOTING (See Chart Below) Defective: Is the A5 pin for the 1) A5 defective port at +5 Socket of A5 volts with everything Cap on that line unplugged from the port? (see chart below) Plug in controller. Defective controller.

  • Page 103: Ecn 110036

    SOFTFIRE (TOP FIRE BUTTON) TROUBLESHOOTING Be sure Pokey Adjust Screen is displayed. If not, press key 5 and then ST AR T. Defective When the top fire button is pressed does pin 1 6 of A7 show 5V p-p? 3) A2 2) A8 Does output pin of multiplexer pulse to...
  • Page 104 POTENTIOMETER CONTROL LINE TROUBLESHOOTING Manually set the 5200 to the Pokey (Port) T est, page 3A-8. CAY on pin 9 of defective port ad­ justed between 4-6.4V by turning R l 32? Swapou t Do pot lines pass? From chart below determine which line defective check...
  • Page 105 POTENTIOMETER CONTROL LINE TROUBLESHOOTING (Continued) * Refer to the chart at the botto m of the page for +CA V transistor state levels. Is pin 1 4 of A5 Swapout A5 at Ov? Defective Q 1 3 Is the collector or discrete com- of Q 1 3 High? ponent.
  • Page 106 KEYBOARD TROUBLESHOOTING Is the failure on P ort l ? Manually select P okey Adjust Test, pg. 3A-2. there a 5v p-p Are there 5v p-p square wave on pin square waves on P in Replace A 5 . 1 2 of A5? &: of A9 A I O ?
  • Page 107 KEYBOARD TROUBLESHOOTING (Continued) Is there +5 VDC on Replace A27. Is there av on P ins 4, 5 and 1 4 of A27? Pin 6 of A9? Swapou t 1 ) A9 Defective A5 or open 2) A l a traces from A5 to A27.
  • Page 108 KEYBOARD TROUBLESHOOTING (Continued) Swapout 1 ) A l O 2 ) Al l Does Port 2 pass? Check capacitors and resistors on Pins 1 & lj. of Port 2. Replace if de fective. lj. A-2lj. CX5200 Field Service Manual...
  • Page 109 SECTION 5 4-PORT 5200 SYMPTOM CHECKLIST • The Symptom Checklist is designed to assist the experienced technician arrive at a rapid diagnosis for model 5200 problems. The checklist is not intended to replace the D iagnostic F lowcharts as the primary troubleshooting guide, but rather , to supplement the flowchart.
  • Page 110 4-PORT 5 200 SYMPTOM CHECKLIST (Cont.) CONTROLLER F All.. U RES FLOWCHART SYMPTOM POSSIBLE CAUSES ENTRY POINT PORT,U5,U7 , C9 l -C l 06, Pg. 6-3 Joystick does not work R l 0 6-Rl 1 3 Pg. 6-4 P ORT,U9-U 1 2 Keypad does not work PORT,U5,R1 1 4-R 1 1 7 , C 1 07 -C l l O Pg.
  • Page 111 SECTION 5A 2-PORT 5200 SYMPTOM CHECKLIST The Symptom Checklist is designed to assist the experienced technician to arrive at a rapid diagnosis for 2-Port 5200 problems. The checklist is not intended to replace the D iagnostic F lowchart as the primary troubleshooting guide but to supplement the flowchart.
  • Page 112 2-PORT MODEL 5200 SYMPTOM CHECKLIST (Cont.) CONTROLLER F AILURES F LOWCHART POSSIBLE CAUSES ENTRY POINT SYMPTOM Joystick does not work PORT,A5,A7,C9 1 -C I 0 6, Pg. 6-3 R I 0 6-R1 l 3 Pg. 6-4 PORT A7,A9-A l l K eypad does not work Pg.
  • Page 114 The Joystick assembly contains two pots set in the bottom contro ller case. Two slides (actuator plates) in the top controller case move the pot ar ms into position when the player moves the joystick. For proper operation, the pot a r m s must be aligned N O TE: correctly.

  • Page 115: Joystick Positions

    CONTROLLER TESTING USING THE 5200 CONSOLE Equipment Needed: K nown-good M odel 5200 console (properly adj usted) • K nown-good Model 5200 controller • Color T. V. set (properly adj usted) • Diagnostic Cartridge (version 1 . 1 ) • Ohm meter •...
  • Page 116 Move the controller joystick to position 2, as illustrated in F igure 6-2. The readings on the screen should be greater than 1 90 for por t 1 . Slowly move the joystick back and forth between positions 1 and 2 and verify that the readings increase and decrease evenly on the screen.
  • Page 117 CONTROLLER TESTING WITHOUT A 5200 CONSOLE An Ohm meter • Procedure: Use F igure 6-2 on Page 6-3 as reference for Steps 1 and 2. Move the controller joystick to position 1 . Use an Ohm meter to determine the pot readings through the cable (cable connector Pins 1 1 &: 9 and 10 &: 9).

  • Page 118: Cable Connector Pins (End View)

    FAILURES If one key pad k e y fails, check the k e y switch set for contamination and clean necessary. If there is no contamination, replace the Flex Circuit Pad. If more than one k e y pa d key fails or fire buttons are not the joystick or functioning properly:...

  • Page 119: Game Controller Continuity Check

    Table 6- 1 . Game Controller Continuity Check Colum n 1 Column 2 Cable Connector F lex C ircuit Pad F ailed Key 1 ) P in 3 2) Pin 8 1 ( 5 1 ), 4(54), 7(57), *(51 0) 1 ) Pin 2 2) Pin 7 2(52), 5(55) , 8(58) , 0 (51 1 )

  • Page 120: Pot &. Arm Assembly

    POT ARM ALIGNMENT PROCEDURE done if the controller cable is defective 1£ you have not already m in e (see defective, Table 6- 0. the cable is not continue with the foliowing steps. Use Figure reference for steps through 3. Disass e mble the controller and remove arm from wiper shaft pot.

  • Page 121: Controller Top (Underside)

    If this test falls: Replace the pots if they have not already been repl aced. Replace the a ctuator plates if the pots have already been replaced. NOTE: The actuator plates must be replaced a complete unit which (see includes the two actuator plates and the slide block Figure 6-5).

  • Page 122: Select Switch Bezel Removal

    CONTROLLER DISASSEMBLY ASSEMBL Y To remove the select switches: Slide a f lathead screw driver under the select switch bezel between • switches and pry out the bezel (See Figure 6-6). Remove the switches. • Joystick Handle Fire Buttons F igure 6-6. Select Switch Bezel R emoval Remove the three screws from the botto m controller case.

  • Page 123: Controller Knob Removal

    F igure 6-7 . Controller Knob Removal To re place joystick: Place boot in position on 'outside of top contr oller case. • Position actuator plates and slide block in underside of to p controller • case. From underside, place pivot shaft through holes in slide block and boot. •...
  • Page 124 P lace the Select Switches' f lex str ip through the opening at the left of its well. 1+ . Position the top controller case on the botto m controller case. Be sure that: The actuator plates are correctly positioned in the top contr oller case •...

  • Page 125: Cx52 Game Controller Schematic

    C A B L E. AS�,( Col STB WHT!ORI.J P.A.U'7E �TA R T " , :0- 5 ' 5 "' , -: Col STB W \-1T!BLK. Col STB Col STB � 6 R.Y W HT/ RED Row Data Row Data V I C s '"...
  • Page 126 SECTION 7 CX53 TRA KBALL Section 7 prov ides the infor mation necessary to troubleshoot and repair the CX53 Trakball which is used with the model 5200. The following pages contain descriptions, test procedures, d iagnostic f lowcharts, a sympto m checklist, d isassembly/assembly instructions and a parts list for the CX53 Trakball.

  • Page 127: Top Cover Assembly

    Keypad F ire Buttons Opening for Cue Ball F igure 7 - 1 . Top Cover Assembly C X5200 Field Service M anual...

  • Page 128: Bottom Cover Assembly

    � Idler Shaft Ass e mbly Encoding Wheel Opening for Game Cable � I � ! I 1 � ' 1 • F igure 7-2. Botto m Cover Assembly 7 -3 C X5200 Field Service Manual...

  • Page 129: Top Cover (Underside)

    Outer Case T he outer case consists of a top and a botto m plastic cover which are held together by 5 phillips head screws. A t the base of the bottom cover is a cable wrap post for cord storage. The top cover provides the following (visible from the outside): an opening in the center for the cue ball.
  • Page 130 THEORY OF OPERA nON For the following discussion, reference the lower PC board assem bly schematic. Since both X and Y circuit operation is identical, refer to the X circuit for this description. The CX53 Trakball is a 2-channel D to A converter which translates optically coupled clocks into analog currents.
  • Page 131 >< '"Tl ..< ..� � '"Tl ..OPTICAL CURRENT THRESHOLD DIRECTIONAL DIRECTION � INTEGRATOR CLOCK COUPLER COMPARATOR ANALOG SENSOR GATES OUTPUf· NETWORKS I.J.) ..; � � (}'\ CLEAR LINE CONTROLLED CLOCI( FROM CONSOLE DOUBLER ONE-SHOT ..

  • Page 132: Keyboard Test Display

    TEST PROCEDURES Equipment Needed: a known good Model 5200 console • a T.V. set, properly adjusted • a Missile Command ™ Cartridge • a 1 . 1 D iagnostic Cartridge • a Digital Voltmeter • Mechanical Check: Verify that the ball will spin freely and smoothly in all directions. There should be no excessive noise or vibration.
  • Page 133 If the ST A RT , PAUSE or RESET buttons fail, g o to F lowchart B , page 7 - 1 2 of this section. If the Keypad(s) fail(s), go to F lowchart B X, page 7 - 1 3 of this section. Trakball and Firebutton T e s t : Insert the M issile Com mand cartridge into the Model 5200.
  • Page 134 Ver ify that a missile fires each time either of the fire buttons (Trigger) closest to the cue ball is pressed. Be sure to test both left and right fire buttons. If a failure occurs, go to F lowchart M, page 7 -25 of this section. D isconnect the trakball from the Model 5200 console.
  • Page 135 - Some lines term inates with X inside a circle. When this occurs, return to the beginning of the test sequence ( Mechanical Check page 7-7). If you have questions or require further infor mation, call your Atari Techline Specialist. Inside Californ ia...
  • Page 136 MECHANICAL OPERATION Remove the top housing. 0011. Remove the cue Spin the idler shaft. Replace the idler shaft Does it roll freely assy. with no excessive noise? Try to straighten Is the PC Board seated Is either or both of the encoding wheels.
  • Page 139 CURSOR LEFT fRIGHT TROUBLESHOOTING Replace game cable Is unit being supplied assembly. with +5VDC? Return to beginning of Test Sequence Are there 5V square Does TP5 toggle low Replace waves at T P l and T P 2 ( OV) when the ball is when the ball is spun? moved to right and high ( 5V) when the ball is...
  • Page 141 CURSOR LEFT fRIGHT TROUBLESHOOTING (Cont.) Is the slightly r o unded square wave at pin 5 and pin 7 of Al a minimum of Replace U l . 4 5 0 M V ? ( Maximum 2 . 5 V Is there approx.
  • Page 142 CURSOR LEFT/RIGHT TROUBLESHOOTING (Cont.) Replace A5. Is C3 shorted? Replace C3. Return to beginning of Test Sequence Ye s Is there +5VDC at Is R 8 open? Replace R8. Is C9 or R25 shorted? the base of Q I ? Replace �.efective Replace Q I .
  • Page 143 CURSOR LEFT/RIGHT TROUBLESHOOTING ( C Is C7 shorted? Replace R 2 1 . Is R2 l open? Replace C7 Replace game cable. Return to beginning of Test Sequence CX5200 Field Service Manual 7 - 1 &...
  • Page 145 CURSOR UP/OOWN TROUBLESHOOTING (Cont.) Does an inverted TP8 signal appear at pin 1 1 of A4 when the ball is spun up and Replace A4. at pin 1 0 of. A4 when the ball is spun down? Does a TP8 signal appear at pin 4 of Replace A5.
  • Page 146 CURSOR UP/DOWN TROUBLESHOOTING (Cont.) Is the slightly rounded square wave at pin 9 Replace U 1 . pin 1 1 of A l mini- mum o f 450 MV p-p? ( M axi m um . 2.5V) Is C 1 0 shorted o r Is there approx.
  • Page 147 CURSOR UP/DOWN TROUBLESHOOTING (Cont.) Replace A 5 . Is Clj. shorted? Replace Clj.. R eturn to beginning of Test Sequence Ye s Is C8 shorted? Is R22 open? Replace R22. Replace C8. Replace game cable. Return to beginning of Test Sequence 7 -22 CX5200 Field Service Manual...

  • Page 148: Main Pc Board

    LEFT fRIGHT DIRECTIONAL DROPOUTS TROUBLESHOOTING Set oscilloscope sweep time to .2 msec/div. Is the rounded square wave at pin 5 &: pin 7 of A l a minimum of Replace Ul 4- 5 0 MY? (Maximum 2.5Y ) Ball must be spun at a fast rate.
  • Page 149 UP /DOWN DIRECTIONAL DROPOUTS TROUBLESHOOTING Set oscilloscope sweep time to .2 msec/div. Is the rounded square w ave at pin 9 and pin 1 1 of A 1 a mini- m u m of 450MV p-p? Replace U 2 . ( Maximum 2.5V) B all must be spun...
  • Page 150 FIREBUTTON TROUBLESHOOTING Are the dome switches on the Y es Replace the upper P C Board upper P C Board. damaged? (Inspect visually) Swapout: 1 ) Cable 2) PC Board (Upper) Return to beginning of Test Sequence CX5200 Field Service Manual 7-25...
  • Page 151 SYMPTOM CHECKLIST FLOWCHART POSSmLE CAUSES SYMPTOM ENTRY POINT Noisy operation or ball Dirty roller and idler A , Page 7-1 1 won't spin freely shafts and ball, worn bearings, warped encoding wheels Dirty keyboard PC board, Keyboard failure B, Page 7-1 2 dirty 1 2-key switch set, or defective game cable F ire button failure...
  • Page 152 DISASSEMBL Y / ASSEMBLY sure that unit unplugged from the Model 5200 Console before disassembling to level. Refer to F igures 7-1 and 7-2, for the following Disassembly/Assembly. Turn the unit upside down and support it so that cue ball doesn't rub against •...
  • Page 153 ypad P C Board- -I- Retaining Cli p Retaining C lip F igure 7-6. Top Cover (Underside) To replace the Keypad PC Board: Position the board as shown in Figure 7 -6. Be sure that P C board is under •...
  • Page 154 Retaining Clip F igure 7 -7 . Main PC Board To replace the m ain PC Board: Posi tion the board as shown in F igure 7 -7 . Be sure that the holes in the • board are aligned with the three holding tabs in the bottom cover. Carefully pull out on retaining clip A, slip the board down and lock it into •...
  • Page 155 P lace the top cover over the botto m cover. • Turn the unit upside down. Support the unit on books to keep the cue ball • from rubbing against the work bench. Replace and tighten the Ii ve phillips head screws in the botto m cover. •...
  • Page 156 R 1 8-20 Resistor: 30 K 1 /4W 1 4-5303 R 2 1 ,22 Resistor: 1 80K 1 /4W 1 4-5 1 84 R23,24 Resistor : 240 Ohm 1 /4 W 1 4-524 1 CX 5200 Field Service M anual 7-3 1...
  • Page 157 CX53 TRAKBALL DESCRIPTION PART NUMBER LOCATOR Resistor: 4.7K l /4W 1 4 -547 2 Resistor: l OOK 1 /4W 1 4-5 1 04 R 30 Resistor 8.2K 1 /4 W 1 4-5822 R 3 1 Resistor 430K 1 /4 W 1 4-5434 R32-35 C0 1 43 86-02...
  • Page 158 SECTION 8 ATARI CX5200 PARTS LIST MAJOR ASSEMBLIES LOCATION DESCRIPTION PART NO. ATARI CX5200 CA0 1 8174-01 ATARI CX5200 CA021450-XX CA018087 PC Board Assy (Main) (ORIGINAL 4-PORT) PC Board Assy (Main) CA020108 (UNIVERSAL 4-PORT) CA0 1 9069 Heatsink Assy CA020 1 6 1...
  • Page 159 LOCATION DESCRIPTION PART NO. CU2l AC/DC POWER ADAPTOR CO 1 &1 &7 AC/DC POWER ADAPTOR (Not Pkgd.) CA019l 4l-XX A.C. ADAPTOR ASSY (2-PORT)(PKGD.) CA02l 673-XX PC BOARD ASSY (MAIN) CAOl &O&7 Board 8-5. NOTE: The Parts List for PC Assy (Main) Number CA0201 08 begins page Board The Parts List for PC...
  • Page 160 LOCATION PART DESCRIPTION (MAIN)(Continued) CA0 1 8087 PC BOARD ASSY (ORIGINAL 4-PORn 1 4--5 1 2 3 R29 , 4-6 Resistor 1 /4- W 1 2K R 3 1 , 4- 3 , 6 5, 1 25 Resistor 1 /4-W 6.8K 1 4--5682 1 4--55 1 1 Resistor 1 /4-W 5 1 0 Ohm...
  • Page 161 LOCATION DESCRIPTION PART NO. Y 1 ( Alternate listed) Crystal 3.579575 Mhz ( H C- 1 S) CO 1 55 1 0 Y 1 ( Alternate for P /N Crystal 3.579575 Mhz CO l O l n C0 1 5 5 1 0) PC BOARD ASSY (MAIN)(Continued) CA01 8087 (ORIGINAL 4-PORT)
  • Page 162 DESCRIPTION L OCATION P ART BOARD ASSY (MAIN) CA020108 4-PORn (UNIVERSAL 5200 Universal PCB Assy CA020 1 08 CA020 1 6 1 Heatsink Assembly LED:DS 1 C0 1 47 7 6 C0 1 8 1 4 3 LED S tandoff C0 1 90 2 7 Shield Top Shield Bottom...
  • Page 163 LOCATION PART NO. Continued CA020 1 08 BOARD ASSY (MAIN) UNIVERSAL 4-PORn C 56 -5 9 , 6 1 -72, 74-8 5 Cap. Ceramic Axial , 470p F , 50 V C0 1 4 1 79 - 1 6 C 1 1 6 Cap.
  • Page 164 LOCATION DESCRIPTION PART NUMBER (Continued) PC BOARD ASSY (MAIN) CA020 108 (UNIVERSAL 4-PORn R57 ,58 Carbon Metal Fil m 1 82 Ohm , 1 W C0 1 8 1 88-0 1 1 4-5223 R62,63 Carbon F ilm Resistor 22K Ohm, 1 /4W Carbon F ilm Resistor 1 50 Ohm , 1 /4 W 1 4-5 1 5 1 Carbon F ilm Resistor 1 .5K Ohm, 1 /4 W...
  • Page 165 DESCRIPTION PART NUMBER PC BOARD ASSY (MAIN)(2-PORT) CA021 374 I.C. 4050B CO I 0 8 1 6 I.C. Custo m 650 2 C0 1 4 806 I.C. Custom Antic C0 1 2296-XX I.C. Custom GTIA C0 1 4 80 5 - X X I.C.
  • Page 166 DESCRIPTION PART NUMBER LOCATION CA021 375 PCB S ASSY (2-PORT) Cap, Ceramic Axial, 68pf, 50 Y C0 1 4 1 79-1 2 C 3 9 Cap, Tantalum Axial, 1 0uf C0 1 75 1 6 C4 1 ,42, 1 l 9, 1 44 C0 1 0394 Cap, Polyester Radial, .22uf, 1 00 Y C43,44...
  • Page 167 LOCATION DESCRIPTION PART NUMBER SUB-ASSY (2-PORT) (Continued) CA0 2 1 375 R7 1 -74,80-8 4 , Res., Carbon Film, 4 7 0 Ohm , 1 /4 W , 1 4-547 1 88-9 1 , 1 0 2- 1 0 5, 1 1 4 , 1 1 7, 1 1 8, 1 2 1 R 1 06 , 1 0 9, 1 1 0 , 1 1 3 Res., Carbon Film, 1 .8 K Ohm, 1 /4 W...
  • Page 168 R ear Cartridge D oor C0 1 81 39 L abel, FCC C0 1 9 1 07 CA018174-01 A TARI CX5200 ATARI CX52 CONTROLLER ASSY CAOl8107 (ALL MODELS) CO l 8 1 0 8 Top Housing B ottom Housing CO l 8 l 09...
  • Page 169 DESCRIPTION LOCATION PART NO. Controller Cable Assy CA0 1 8 1 45 Top Housing Assy CA0 1 8223 Pot & Arm Assy CA0 1 8987 Cable Pot Assy CA0 1 898 8 ASSY TRAKBALL (CX53) CA0201 94 Top Housing Assy CA020 1 97 Bottom Housing Assy CA020 1 98...
  • Page 170 The following are brief descriptions of each classification: FIELD CHANGE ORDER A Field Change Order describes mandatory hardware or software changes to ATARI Computer products and instructs how to imple ment these changes. The changes must be perfor m ed on all units serviced or repaired.
  • Page 171 Consumer Product Service Manager of Tehnicaf Support ATARt" TECH TIP number AT ARI CX5200 11/17/82 CATE, MOCEl.. , CX.5200 Power Adaptor DESCRIPTION, Do not use an Hen Power Adaptor with the CX'200 it will damage both the HeD Power Adaptor and the CX5200 Switchbox. The proper Power Adaptor to use with the CX.5200 is: CX521 AC/DC Power Adaptor, Part Number CO 181 &7...
  • Page 172 Consumer Product Service Manager 01 Tehnical Support TECH TIP number 1/20183. OA"fE, MOOEI., cxnoo SUBJECT: Defective Rockwell 6502 MPU on CX5200 PC Board. DESCRIPTION: RockweH MPUs with date code of 8250 and later (stamped with the letters RC) have a timing defect. A factory modification adds an R-C network on the component side of the CX5200 PC Board at IC U 14A (pin 1) and U6A (pin 4) (see Figures and 2).
  • Page 173 � ..�- . _-, ...." Figure 3. R-C Network (Add to solder side of CX 5200 PC Board) PROCEDURES: You wUl need: 100 pf capacitor (PIN COI41&O-03) • 1-470...t"l. . resistor (PIN 14-5471) •...
  • Page 174 Field Service Manual (PIN FD100127, Rev. 2). DIFFl C UL TY REPORTING If you have any questions or need further clarification concerning this Tech Tip, contact the ATARI Tech Line Specialist. Inside California (SOO) 672-1466 Outside California 53&-1535 (SOO) leU1 (S/a:u...
  • Page 176 TECH TIP number ..� DATE, MOOEl., cxnoo Controller SUBJECT: DIFFI C ULTY REPORTING: If you need further clarification concerning this Tech Tip, caU the ATARI T echline Specialist: Inside Ca!ifornia (SOO) 672-1466 Outside California (800) 538-1535 ENCLOSURES: modified top controller...
  • Page 178 "mushy' and slow to respond", SOLUTION: This Atari has designed a fire button which is not'mushy and reacts rapidly. new fire button will replace the old models. When ordering fire buttons use part number C020501.
  • Page 179 Consumer Product Service Manager of T8c:h1lical � TECH TIP number MODEl... , OATE.: June 6, 1983 �200 Printed Circuit Board (CA0181l87) PRO&.I!M AND SOLUTION: Some .5200 units cUsplay a bJank or a with garbled infcrmation. The SCI"� SC"eer1 probable for either of these symptoms is an intermittent solder short (bridge) on cause the PCB between the·...
  • Page 180 Consumer Product Service Manager of Support TecI1i:ical ATARI' TECH TIP number CX5200 DATE, MODEL, Remove excess solder feed­ between trace « pall thru h ..A' Address Line Trace '200 Fiaure Solder Sid. at DIFFI CUL TY REPORTING: Atari...

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