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IBM PCjr, Hardware Maintenance And Service

The IBM PCjr is a versatile personal computer that offers advanced functionality in a compact design. Users can enhance their experience by downloading the free user manual from manualshive.com, providing detailed instructions on setup, maintenance, and troubleshooting. Empower yourself with the manual for optimal performance.

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Summary of Contents for PCjr

Page 1: ...Personal Computer PCy r Hardware Reference Library Hardware Maintenance and Service 1502263...

Page 2: ......

Page 3: ...Personal Computer PCyr Hardware Reference Library Hardware Maintenance and Service...

Page 4: ...bout the _ system should be made to your authorized IBM Personal Computer dealer A Reader s Comment Form is provided at the back of this publication If this form has been removed address comments to I...

Page 5: ...ripherals is likely to result in interference to radio and TV reception INSTRUCTIONS TO USER This equipment generates and uses radio frequency energy and if not installed and used properly i e in stri...

Page 6: ...ng screws attachment connector screws and ground wires are tightly secured If peripherals not offered by IBM are used with this equipment it is suggested that you use shielded grounded cables with in...

Page 7: ...PCyr diagnostics Detailed instructions explaining how to perform the advanced power on self test POST and other advanced tests are included here Section 3 Problem Isolation Charts contains the start...

Page 8: ...the IBM PCyr parts and FRUs Complete operating instructions for the IBM PCyr are in the Guide to Operations IBM part numbers 1502291 and 1502292 Detailed hardware design and interface information are...

Page 9: ...arts 3 1 Start 3 000 1 Undetermined Problem 3 010 1 Power 3 020 1 Memory 3 200 1 Keyboard 3 300 1 Display 3 500 1 Diskette Drive 3 600 1 Light Pen 3 800 1 Cartridge 3 810 1 Sound 3 820 1 Internal Mode...

Page 10: ...1 Infra Red Receiver Removal 300 4 300 1 Infra Red Receiver Replacement 305 4 300 2 Keyboard Battery Replacement 310 4 300 3 Display 4 500 1 IBM Color Display Removal 500 4 500 1 IBM Color Display Rep...

Page 11: ...4 830 2 Compact Printer 4 850 1 Top Cover Removal 851 4 850 1 Top Cover Replacement 852 4 850 4 Print Mechanism Removal 853 4 850 5 Print Mechanism Replacement 854 4 850 6 Logic Card Removal 855 4 850...

Page 12: ...ilter Card Power Cord Removal 1452 4 1400 36 Fuse Filter Card Power Cord Replacement 1454 4 1400 37 Heat Sink Power Transistor Assembly Removal 1460 4 1400 38 Heat Sink Power Transistor Assembly Repla...

Page 13: ...Diskette Drive 5 7 IBM Color Display 5 8 IBM Graphics Printer Front 5 9 IBM Graphics Printer Rear 5 10 IBM Graphics Printer Top 5 12 Printer Cable 5 13 Print Head and Cable Rear 5 14 Left Margin Sens...

Page 14: ...Notes...

Page 15: ...Section 1 Introduction Contents Description 1 3 Features 1 3 Options 1 3 1 1...

Page 16: ...Notes 1 2...

Page 17: ...M PCyr has this basic configuration IBM VCjr System Unit 64K random access memory RAM 64K read only memory ROM Cassette light pen serial and joystick ports Direct drive video composite video and telev...

Page 18: ...erial Devices IBM Connector for Television IBM PCyr Adapter Cable for IBM Color Display IBM PCyr Diskette Drive Adapter IBM PCyr Keyboard Cord IBM Personal Computer Graphics Printer IBM Color Display...

Page 19: ...Section 2 Introduction to Diagnostics Contents Required Items for Diagnostics 2 3 How to Perform Advanced POST 2 4 How to Perform Advanced Tests 2 8 2 1...

Page 20: ...Notes 2 2...

Page 21: ...keyboard A known good television receiver A service plug part number 1503441 A POST loop plug part number 1503442 A parallel printer attachment wrap plug part number 8529228 A serial wrap plug part n...

Page 22: ...the display s Power switch to Off 3 Connect the power transformer s power cord to a functioning properly grounded outlet 4 Install aUconnectors securely in their proper locations Joystick Joystick Spa...

Page 23: ...less keyboard is being used without its optional keyboard cord Position the keyboard within 12 inches of the front of the system unit Remove any obstructions between the infra red IR emitter in the ba...

Page 24: ...nd volume controls to mid range 9 Set the display s Power switch to On 10 Set the system unit s Power switch to On Advanced POST begins as soon as the system unit Power switch is set to On It takes as...

Page 25: ...light switches on for a few seconds and then switches off When advanced POST completes without detecting a failure the BASIC screen appears The IBM Personal Computer Basic Version C1 20 Copyright IBM...

Page 26: ...Set the system unit s Power switch to Off 2 Wait five seconds 3 Set the system unit s Power switch to On How to Perform Advanced Tests 2 8 Advanced tests are the tests you choose from the advanced tes...

Page 27: ...menu consists of symbols with each symbol representing one area of the IBM PCjr The letters or numbers below the symbols are IDs of tests you can perform A quick way to determine if you are looking at...

Page 28: ...ear go to the PIC for that option If you see a in the lower right hand comer of the advanced test menu the menu has another page of symbols When the cursor is moved to the last ID on the screen moving...

Page 29: ...ck after a description means the sjmibol appears only when the option is attached to the system unit 0 1 1 IZZI E RS232 Diskette drive test Display and light pen test Joystick test Sound test Graphics...

Page 30: ...figure below the interfaces for diskette drive display joystick and soimd are sensed A 8r5 64 KB The IDs for joystick and sound always blink because their interfaces are on the system board The blinki...

Page 31: ...Internal modem Internal modem Joystick System board Keyboard System board Light pen System Board Memory System board and 64KB memory and display expansion RS232 System board Sound System board While t...

Page 32: ...ning of each PIC any special requirements or set up instructions are explained to you You move the cursor to the test s ID by pressing the Ins key When you are ready to start the test press the Enter...

Page 33: ...detected and you should follow the PIC for that test If you want to stop a test that is running press the Fn key and then press the B key Depending on which test is running you can get one of several...

Page 34: ...ops immediately Message is FFFF Keyboard The Fn and B keys must be shown on the screen before using them to abort the test Test stops immediately Message is Joystick Light Pen Test stops immediately M...

Page 35: ...ined Problem 3 010 1 Power 3 020 1 Memory 3 200 1 Keyboard 3 300 1 Display 3 500 1 Diskette Drive 3 600 1 Light Pen 3 800 1 Cartridge 3 810 1 Sound 3 820 1 Internal Modem 3 830 1 RS232 3 840 1 Compact...

Page 36: ...Notes 3 2...

Page 37: ...n page 2 4 then return to here Note If advanced POST successfully completes the BASIC screen appears The IBM Personal Computer Basic Version 01 20 Copyright IBM Corp 1981 XXXXX Bytes free OK mai 2 ii...

Page 38: ...p the advanced test menu go to page 2 8 The IBM logo appears the diskette drive if attached red light switches on for a moment and you hear one beep Then the advanced test menu appears DID THE ADVANCE...

Page 39: ...There may be a diskette drive installed in the system unit...

Page 40: ...s Power switch to Off 2 Remove the system unit top cover 3 Set the system unit s Power switch to On 4 Observe the diskette drive fan Diskette Drive Fan w IS THE DISKETTE DRIVE FAN RUNNING Go to page 3...

Page 41: ...determined problem If a failure occurs only occasionally you have an intermittent problem DO YOU HAVE AN UNDETERMINED OR INTERMITTENT PROBLEM NO Go to the PIC for the area you want to test See the Con...

Page 42: ...e careful when the top cover is off the system unit The components on the power board can become hot with the system unit on 2 Allow the power board to cool 3 Disconnect the diskette drive fan power c...

Page 43: ...ow vdc High Vdc WERE YOU ABLE TO READ THE CORRECT VOLTAGES NO The power board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCy is operating correctly The disket...

Page 44: ...3 500 1 Two beeps No image or image on screen wrong Power Go to PIC Power 3 020 1 Three beeps No image or image on screen wrong Memory Replace 64KB memory and display expansion Repeat advanced POST I...

Page 45: ...PIC Power 4 100 1 No beep ERROR OBXX Memory Replace 64KB memory and display expansion Repeat advanced POST If same error go to PIC Memory 4 200 1 No beep ERROR OCXX Memory Replace 64KB memory and disp...

Page 46: ...If same error go to PIC Keyboard 3 300 1 No beep ERROR 21XX Infra Red Replace infra red receiver Repeat advanced POST If same error go to PIC Keyboard 4 300 1 No beep ERROR 22XX Keyboard Replace keybo...

Page 47: ...3 810 1 No beep ERROR 26XX Diskette drive Replace diskette drive adapter Repeat advanced POST Is same message go to PIC Diskette Drive 4 600 1 Any ERROR message not listed in this table Service plug...

Page 48: ...Notes 3 000 12 Start...

Page 49: ...blem You are entering this PIC for one of the following reasons You have an undetermined problem You have an intermittent problem DO YOU HAVE AN UNDETERMINED PROBLEM NO Go to page 3 010 4 Undetermined...

Page 50: ...rm Advanced POST beginning on page 2 4 then return to here Note If advanced POST successfully completes the BASIC screen appears The IBM Personal Computer Basic Version 01 20 Copyright IBM Corp 1981 X...

Page 51: ...and set up instructions Keyboard Display Sound RS232 Diskette drive if present Internal modem if present Attachable joystick if present Light pen if present Parallel printer attachment if present Grap...

Page 52: ...m Advanced POST can be made to repeat indefinitely It tests the system board and the memory The loop stops if a failure in either area is detected DO YOU WANT TO LOOP THE ADVANCED POST NO Go to page 3...

Page 53: ...switch to Off 2 Plug the POST loop plug into the system unit connector Js 3 Set the system unit s Power switch to On NO Make a note of the failure Go to the Advanced POST Error Table on page 3 000 8...

Page 54: ...r transformer cable plug should be within the ranges listed below 4 Measure these voltages now Low Vdc High Vdc Pin 1 to Pin 3 ARE ALL THE VOLTAGES WITHIN THEIR SPECIFIED RANGES The PIC Power indicate...

Page 55: ...were sent here by the Advanced POST Error Table 1 Set the system unit s Power switch to Off 2 Disconnect aU devices except the power cable and service plug that are attached to the outside of the sys...

Page 56: ...Reconnect the devices one at a time Perform advanced POST after each reconnection Attach the connector for television first to test it then attach the television When the failing symptom returns repla...

Page 57: ...A bad 64KB memory and display expansion can cause this problem...

Page 58: ...1 Set the system umt s Power switch to Off 2 Remove the 64KB memory and display expansion and set it aside 3 Perform advanced POST YOU HEAR ONE BEEP NO Go to page 3 020 6 3 020 4 Power...

Page 59: ...d Reconnect all removed items then repeat advanced POST and the advanced tests to ensure that the IBM PCjr is operating correctly The system board is bad Replace it Reattach the original 64KB memory a...

Page 60: ...hese items are present disconnect them from the system board and power board Diskette drive adapter Diskette drive power cable Diskette drive fan power cable Internal modem If present you can keep the...

Page 61: ...the items removed is failing Reconnect them one at a time Perform advanced POST after each reconnection When the failing symptom returns replace the item that is causing the failure Repeat advanced PO...

Page 62: ...mer cable plug should be within the ranges hsted below 4 Measure these voltages now Low Vac High Vac Pin 1 to Pin 3 15 0 30 0 WERE YOU ABLE TO READ THE CORRECT VOLTAGES 3 020 8 Power The power transfo...

Page 63: ...4 Set the system unit s Power switch to On 5 The voltages at the diskette drive power cable connector on the power board should be within the ranges Hsted below 6 Measure these voltages now Pin 1 Pin...

Page 64: ...thin the ranges hsted below Measure these voltages now Low Vdc High Vdc WERE YOU ABLE TO READ THE CORRECT VOLTAGES 3 020 10 Power The power board is bad Replace it Reconnect all removed items then rep...

Page 65: ...2 Set the system unit s Power switch to On Wait one minute DID YOU HEAR ONE BEEP YES The problem has been corrected Reconnect aU removed items then repeat advanced POST and the advanced tests to ensu...

Page 66: ...Notes V 3 020 12 Power...

Page 67: ...ory shown on your screen during advanced POST does not correspond to the amount of memory installed Advanced POST Error Table Part 1 of 4 POST Error Probiem Area What To Do Page 3 No beep No image or...

Page 68: ...orm advanced POST DID YOU GET AN ADVANCED POST ERROR MESSAGE The problem has been corrected Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correctly The original...

Page 69: ...test menu was on your screen the number at the bottom of the screen stopped incrementing and the next to it was replaced by an error message This indicates a memory failure 4 8r5 E 64 KB XXYY XX DID Y...

Page 70: ...olumn of the chart below Message Recommended Action XXOO XX Replace the 64KB memory and display expansion XXOl XX Replace the system board X can be any number Do the recommended action for your noted...

Page 71: ...vanced POSTmayincrement to only64KB evenwith the 64KB memory and display expansion installed Increments to the Amount of Memory Installed DID YOU HAVE A MEMORY FAILURE AS DESCRIBED ABOVE If you suspec...

Page 72: ...unit b4KB Memory and Display Expansion DOES THE SYSTEM UNIT CONTAIN A 64KB MEMORY AND DISPLAY EXPANSION The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that th...

Page 73: ...B memory and display expansion by disconnecting it from the system unit and then reconnecting it 3 Perform advanced POST The problem has been corrected Repeat advanced POST and the advanced tests to e...

Page 74: ...Off 2 Remove the 64KB memory and display expansion and set it aside Make a note that this is 64KB memory and display expansion 1 3 Attach a new 64KB memory and display expansion Make a note that this...

Page 75: ...ory and display expansion if you previously replaced it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correctly The problem has been corrected Repeat advanced PO...

Page 76: ...Notes 3 200 10 Memory...

Page 77: ...ror Table the PIC Start or the PIC Keyboard sent you here You want to perform the keyboard advanced test 64KB ERROR 2103 ARE YOU ENTERING THIS PIC BECAUSE ERROR 21XX APPEARED DURING ADVANCED POST You...

Page 78: ...Error 2000 or 22XX may have appeared during advanced POST 64KB ERROR 2000 ARE YOU ENTERING TfflS PIC BECAUSE ERROR 2000 OR 22XX APPEARED DURING ADVANCED POST Go to page 3 300 5 3 300 2 Keyboard...

Page 79: ...ood Set it in front of the system unit instead of using the replacement keyboard 3 Perform advanced POST 64KB ERROR 2000 DID ADVANCED POST ERROR 2000 OR 22XX APPEAR The problem has been corrected Repe...

Page 80: ...rp 1981 XXXXX Bytes free OK iHMi 2l tii B affiEEi 4B31BI 5H EIH DID ADVANCED POST SUCCESSFULLY COMPLETE The problem has been corrected Repeat advanced POST and the advanced tests to ensure that the IB...

Page 81: ...keys and then press the Ins key 3 Release the keys when the screen goes blank The IBM logo appears the diskette drive if attached red Ught switches on for a moment and the system unit beeps once Then...

Page 82: ...1 Move the cursor to ID J under the keyboard symbol 2 Press the Enter key 3 The keyboard test screen should appear on your screen DID THE KEYBOARD TEST SCREEN APPEAR...

Page 83: ...osition corresponds with the key s approximate position on the keyboard 2 Letters numbers and symbols should appear across the top of the test screen as their keys are pressed When the top of the test...

Page 84: ...ematic action The letter J should repeat at the top of the screen while you hold down the J key You may press the Enter key to clear the top hne and repeat the typematic test for other keys DID THE AC...

Page 85: ...the B key once The advanced test menu should appear on your screen DO YOU HAVE UNDER THE KEYBOARD SYMBOL You have finished the keyboard PIC If you still have an unsolved problem you should seek techn...

Page 86: ...You have detected a keyboard failure ARE YOU TESTING A KEYBOARD THAT IS CONNECTED TO THE SYSTEM UNIT WITH A KEYBOARD CORD Go to page 3 300 12 3 300 10 Keyboard...

Page 87: ...nly one can use a keyboard not connected by keyboard cord to its system unit The keyboard cord disables the keyboard s infra red transmitter and the system unit s infra red receiver Suggested actions...

Page 88: ...he continuity of the keyboard cord iilLL 3 2 1 1 6 2x3 Connector Keyboard Plug from Pin to pin A2 5 B2 2 B3 4 Qvom IS THE CORD OK NO The keyboard cord is bad Replace it Repeat advanced POST and the ad...

Page 89: ...other display problem When using this PIC you may notice that some colors on your display are different from those in the manual This is not necessarily an error condition Different brands and types o...

Page 90: ...n while the IBM PCjr is being used The IBM Personal Computer Basic Version 01 20 Copyright IBM Corp 1981 XXXXX Bytes free OK G iHEO 2I 1I1 B 3HSUil 4HS33 5fir T IB DO CHARACTERS OR SYMBOLS RANDOMLY AP...

Page 91: ...s free OK mSl 2l ll B 5 finTTia V DO CHARACTERS OR SYMBOLS RANDOMLY APPEAR ON YOUR SCREEN YES The system board is bad Replace it Reinstall the original 64KB memory and display expansion Repeat advance...

Page 92: ...You may have something other than a television attached to the system unit...

Page 93: ...1 Perform advanced POST 2 Wait one minute DID YOU HEAR ONE BEEP Go to the PIC Power on page 3 020 1 Display 3 500 5...

Page 94: ...o the proper channel 3 or 4 for your area Set the Computer Television switch on the connector for television to Computer Turn the television s brightness and contrast controls to the mid range Perform...

Page 95: ...A bad 64KB memory and display expansion can cause this problem...

Page 96: ...DID THE IBM LOGO SHOWN DURING ADVANCED POST LOOK CORRECT AND STABLE YES The 64KB memory and display expansion is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM VCjr...

Page 97: ...ake a note that this is power board 2 4 Perform advanced POST DID THE IBM LOGO SHOWN DURING ADVANCED POST LOOK CORRECT AND STABLE YES The problem has been corrected Repeat advanced POST and the advanc...

Page 98: ...Perform advanced POST DID THE IBM LOGO SHOWN DURING ADVANCED POST LOOK CORRECT AND STABLE YES The problem has been corrected Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is...

Page 99: ...I You heard one beep and the IBM logo looked correct during advanced POST 1 Bring the advanced test menu to your screen 2 Move the cursor to ID 4 under the display symbol CONTINUE Display 3 500 11...

Page 100: ...ity White 3 Biinking 4 Blank 5 Reverse image DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN NO The system board is bad Replace it YES Repeat advanced POST and the advanced tests to ensure that the IBM PC...

Page 101: ...liijlc 1 itnopiiPS tuvMX iz _ a_9 lie 3aa F e_ e i 7 1 HnEallobbQuyVu E P aibunNSSc M op r nSo pTS ft6 n DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN The system board is bad Replace it Repeat advanced...

Page 102: ...FGH IJ KLh b78 9 ABCDEFGH UF LMF 789 9 ABGDEFGH I JKLMN 89 9 aB DEFGHIJKLMM0F 9 i abcdefgh iJKLMMOpi 9 ABrDETGH IJKLMMOPQF G mB TEFGH IJKLMNOPQF i H B DFTGH I JKLMNOPQP I 9 8F r FFGH I jklmnopqr TL 9...

Page 103: ...Ins key once DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN NO YES The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCjr is operating correctly Displa...

Page 104: ...ld be in black and white If an RGB display is attached to the system unit the image should be in color 320x200x40 DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN The system board is bad Replace it Repeat...

Page 105: ...s key once 320x200x46 DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correctly Disp...

Page 106: ...The PIC now branches according to whether you selected ID 4 or ID 8 from under the display symbol...

Page 107: ...scroll through the video pages 0 through 7 Look for any discrepancy in the hstings of numbers on each page WERE ALL VIDEO PAGES DISPLAYED CORRECTLY The system board is bad Replace it Repeat advanced...

Page 108: ...ys color on RGB displays then the advanced test menu will appear DO YOU HAVE UNDER THE DISPLAY SYMBOL The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the...

Page 109: ...You have something other than a television attached to the system unit 1 Perform advanced POST 2 Wait one minute DID YOU HEAR ONE BEEP Go to the PIC Power on page 3 020 1 Display 3 500 21...

Page 110: ...Perform advanced POST DID THE IBM LOGO SHOWN DURING ADVANCED POST LOOK CORRECT AND STABLE YES Go to page 3 500 25 NO 3 500 22 Display 4...

Page 111: ......

Page 112: ...ID THE IBM LOGO SHOWN DURING ADVANCED POST LOOK CORRECT AND STABLE YES The 64KB memory and display expansion is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr i...

Page 113: ...You might be testing an IBM Color Display 11...

Page 114: ...t properly adjusted im n 2i iij B sdbeei 4En3ii srir mB The IBM Personal Computer Basic Version 01 20 Copyright IBM Corp 1981 V YYYYY Rv tQg froo IS THE SCREEN STABLE Go to Section 4 Removal Replaceme...

Page 115: ...are the wrong size vertical size not properly adjusted LIST OAD SAV CON Too Short Too Tall ARE THE CHARACTERS THE CORRECT SIZE Go to Section 4 Removal Replacement and Adjustments and perform the IBM...

Page 116: ...Bring the advanced test menu to your screen The advanced test menu may be unstable and as a result unreadable 4 8r5 IV J K 64 KB E...

Page 117: ...y function correctly except that the cursor is missing 4 8r5 v V N The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correctly Dis...

Page 118: ...rs may be the wrong size Too Dim M Too Short E Too Wide Shrunken 0 m 9 J K O Out of Focus 0 i Too Narrow Changes Size When Brightness Control Turned DOES YOUR SCREEN LOOK SIMILAR TO ONE OF THE EXAMPLE...

Page 119: ...se high resolution test screens the system unit must have the 64KB memory and display expansion installed 64KB Memory and Display Expansion IS A 64KB MEMORY AND DISPLAY EXPANSION INSTALLED NO You cann...

Page 120: ...6789 PA HCDFFGH I IKi MNOFQF 01 23456789 POItCDF EGH I JKLMNOP F T 01 2 3456 7 89 PAIK Dl F GH 1 JK1 MN0F9K I U 01 2 3 45670 9 I AHc DFf H I JKL MNOPOR TIJV 0123456789 PAIK IH FC H I IKI MN0F9 R5 T119...

Page 121: ...lution screens Press the Ins key once DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN NO The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is opera...

Page 122: ...123456738 k kk ki f 3123456788 fi CDEF Hl 3LMN p kkkf f 123456788 iCJ CBCDEFGHlJflMNOr irlk HV 23456789 iOWtiFjHlFKLMNtPCFlIu N k kk k P r qr 3456788 6fiBCDEFGHlJFLMS kr i HV k k ki l l n r 456789 k l...

Page 123: ...Ins key once DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN NO YES The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correctly Displa...

Page 124: ...0 X 200 X 2 DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PC ris operating correctly 3 500 36 Displa...

Page 125: ...40x200x4 DID THE CORRECT IMAGE APPEAR ON YOUR SCREEN The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM VCjr is operating correctly YES Go to page 3...

Page 126: ...4 Set the system unit s Power switch to On 5 Immediately after the Power switch is set to On tap the Ins key repeatedly with your finger until you hear two beeps 6 Press and hold the Ctrl and Alt keys...

Page 127: ...ould be within the ranges Usted below 8 Measure these voltages now 1 23456789 Low Vdc High Vdc Pin A2 Pin A4 Pin A5 Pin A6 Pin A7 Pin B1 Pin B3 Pin A2 WERE YOU ABLE TO READ THE CORRECT VOLTAGES The sy...

Page 128: ...If a diskette drive is attached wait for its red Ught to switch on and then off 4 Press and hold the Ctrl and Alt keys 5 While still holding the Crtl and Alt keys press the Ins key 6 Release all keys...

Page 129: ...onnector D should be within the ranges Usted below 10 Measure these voltages now Pin A4 Pin A5 Pin A6 Pin A7 Pin B1 Pin B3 Low Vdc High Vdc 1 23456789 WERE YOU ABLE TO READ THE CORRECT VOLTAGES The sy...

Page 130: ...e Adapter Cable for IBM Color Display is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyris operating correctly The display is bad Replace it Repeat advanced POST...

Page 131: ...e from the Advanced POST Error Table You want to perform the diskette drive advanced test Note If you have intermittent diskette drive problems try moving the system unit away from your display B ERRO...

Page 132: ...stem unit s Power switch to On 2 Bring the advanced test menu to your display screen 3 Press the Ins key to move the cursor away from the diskette drive symbol E IS THE ID UNDER THE DISKETTE DRIVE SYM...

Page 133: ...warning Translated it means Warning THE DISKETTE DRIVE TEST WILL ERASE ALL DATA ON THE DISKETTE Insert a 5 1 4 inch diskette into the diskette drive Close the diskette drive lever The lever will not c...

Page 134: ...DATA ON THE DISKETTE 3 Type the code word MPNP 4 Press the Enter key The advanced test is over when the advanced test menu returns to your screen 4 875 IN DO YOU HAVE UNDER THE DISKETTE DRIVE SYMBOL...

Page 135: ...The advanced test detected a failure 1 Make a note of the number under the diskette drive symbol CONTINUE Diskette Drive 3 600 5...

Page 136: ...I XX09 XX81 XX89 XX97 XX98 XX99 FFFF Recommended Action Go to page 3 600 7 Go to page 3 600 10 No diskette drive is sensed Do the diskette drive speed adjustment page 4 600 16 If the speed cannot be s...

Page 137: ...using a known good 5 1 4 inch diskette that is not write protected DO YOU HAVE UNDER THE DISKETTE DRIVE SYMBOL The problem has been corrected Repeat advanced POST and the advanced tests to ensure that...

Page 138: ...drive power cable 12 3 4 Z SoWo a IS THE CABLE OK 4 3 2 1 The Pins Labeled 1 Should Have Continuity Between Themselves as Should the Pins Labeled 2 and so on The diskette drive power cable is bad Rep...

Page 139: ...y of the diskette drive signal cable IS THE CABLE OK The Pins Labeled 1 Should Have Continuity Between Themselves as Should the Pins Labeled 2 and so on The diskette drive signal cable is bad Replace...

Page 140: ...tte drive adapter and set it aside Make a note that this is diskette drive adapter 1 3 Attach a new diskette drive adapter Make a note that this is diskette drive adapter 2 4 Reattach the diskette dri...

Page 141: ...Press the Enter key 9 Enter the code word when prompted DO YOU HAVE UNDER THE DISKETTE DRIVE SYMBOL The problem has been corrected Repeat advanced POST and the advanced tests to ensure that the IBM VC...

Page 142: ...kette drive on its back and check the diskette drive drive belt IS THE DRIVE BELT INSTALLED ON THE PULLEYS AND IN GOOD CONDITION Replace the diskette drive drive belt Repeat advanced POST and the adva...

Page 143: ...it s Power switch to Off 2 Remove the diskette drive and set it aside Make a note that this is diskette drive 1 3 Attach a new diskette drive Make a note that this is diskette drive 2 1 CONTINUE Diske...

Page 144: ...when you are prompted 4f8 5 DO YOU HAVE UNDER THE DISKETTE DRIVE SYMBOL The system board is bad Replace it Reattach the original diskette drive Repeat advanced POST and the advanced tests to ensure th...

Page 145: ...n reconnecting it 3 Set the system unit s Power switch to On 4 Bring the advanced test menu to your screen 4 8 5 1 I I I f 64 KB IS THE ID UNDER THE DISKETTE DRIVE SYMBOL BLINKING The problem has been...

Page 146: ...ch to Off 2 Remove the diskette drive adapter and set it aside Make a note that this is diskette drive adapter 1 3 Attach a new diskette drive adapter Make a note that this is diskette drive adapter 2...

Page 147: ...3 Set the system unit s Power switch to On 4 Bring the advanced test menu to your screen IS THE ID UNDER THE MODEM SYMBOL BLINKING NO Go to page 3 830 5 3 830 2 Internal Modem...

Page 148: ...ering this PIC because you suspect the internal modem is faihng 1 Set the system unit s Power switch to Off 2 Unplug the modem cable from the system unit connector M L M Connector CONTINUE Ul Modem Ca...

Page 149: ...Notes 3 820 10 Sound...

Page 150: ...to COMPUTER d All cable connections are correct 2 Repeat the advanced sound test The problem has been corrected Repeat advanced POST and the advanced tests to ensure that the IBM VCjr is operating co...

Page 151: ...levision with the volume turned up and no broadcast signal It is commonly called white noise The advanced test menu will appear on the screen and there will be a under the sound test symbol J K 64 KB...

Page 152: ...frequency for a moment and then fading away A fifth sound symbol will appear on the screen As you do this part of the sound test Ustenfor these failures 1 No sound is heard at aU 2 Something other tha...

Page 153: ...Press the Ins key once to listen to voice 3 DID ANY FAILURE AS DESCRIBED ON PAGE 3 820 3 OCCUR...

Page 154: ...I Press the Ins key once to Usten to voice 2 DID ANY FAILURE AS DESCRIBED ON PAGE 3 820 3 OCCUR Go to page 3 1900 9 Sound 3 820 5...

Page 155: ...4 Press the Ins key once to listen to voice 1 DID ANY FAILURE AS DESCRIBED ON PAGE 3 820 3 OCCUR...

Page 156: ...dy Then its volume diminishes untU the sound is gone Another sound symbol will appear on the screen As you do this part of the sound test Usten for these failures 1 No sound is heard at aU 2 Something...

Page 157: ...en 3 Move the cursor to the sound symbol 4 When you start the test this wiU happen a The screen wUl go blank b You win hear a beep from both the system unit and the external speaker c A sound symbol w...

Page 158: ...your externaUy mounted speaker You hsten to these sounds to decide if the system unit s sound circuitry is working correctly The speaker in the television is used in this test An external amphfier and...

Page 159: ...k YOUR PROGRAM DOES THE PROGRAM CARTRIDGE PROGRAM OPERATE CORRECTLY The program cartridge is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correct...

Page 160: ...1 Remove the program cartridge from the system unit s left slot 2 Plug the program cartridge into the system unit s right slot CONTINUE IgJgHI Cartridge 3 810 5...

Page 161: ...ould work YOUR PROGRAM DOES THE PROGRAM CARTRIDGE PROGRAM OPERATE CORRECTLY The system board is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating corr...

Page 162: ...1 Remove the program cartridge from the system unit s left slot 2 Plug the program cartridge into the system unit s right slot CONTINUE Cartridge 3 810 3...

Page 163: ...tem unit should reset and the program should begin The documentation that comes with the program cartridge explains how the program should work YOUR PROGRAM DOES THE PROGRAM CARTRIDGE PROGRAM OPERATE...

Page 164: ...for all areas of the IBM PCjr the program cartridge uses The usual areas are Keyboard Display Sound 2 Remove any cassette or diskette from the system unit and attached devices 3 Set the system unit s...

Page 165: ...Notes 3 800 6 Light Pen...

Page 166: ...s and use the light pen to erase the white DOES THE LIGHT PEN OPERATE AS DESCRIBED ON PAGE 3 800 2 The light pen is bad Replace it Reattach the original system board Repeat advanced POST and the advan...

Page 167: ...1 Sel 2 Re 3 Ati tch to Off et it aside Make a I ke a note that this is...

Page 168: ...damage the system board 2 Measure the voltages now g lIlHiir 1 2 3 A B Low Vdc High Vdc Pin B1 to PinAI 11 5 12 5 Pin B1 to Pin A3 4 5 5 5 WERE YOU ABLE TO READ THE CORRECT VOLTAGES The system board i...

Page 169: ...e erasing can affect the opposite edge of the screen Also it is normal for some spraying random erasures to happen 8 Restore the white foreground by pressing the hght pen to the yeUow box DID THE LIGH...

Page 170: ...tem unit s Power switch to Off 2 Plug the light pen into system unit connector LP 3 Set the system unit s Power switch to On 4 Bring the advanced test menu to your screen 5 Move the cursor to ID 5 und...

Page 171: ...0503 f 9 111 J K 64 KB E E DO YOU HAVE 0503 UNDER THE DISKETTE DRIVE SYMBOL NO The diskette drive is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCjr is operatin...

Page 172: ...ord when you are prompted DO YOU HAVE UNDER THE DISKETTE DRIVE SYMBOL The system board is bad Replace it Reattach the original diskette drive Repeat advanced POST and the advanced tests to ensure that...

Page 173: ...Remove the diskette drive and set it aside Make a note that this is diskette drive 1 3 Attach a new diskette drive Make a note that this is diskette drive 2 4 Reattach the diskette drive power and si...

Page 174: ...3 Check the continuity of the diskette drive signal cable 0 IS THE CABLE OK The Pins Labeled 1 Should Have Continuity Between Themselves as Should the Pins Labeled 2 and so on The diskette drive signa...

Page 175: ...ntinuity of the diskette drive power cable 1 2 3 4 dj IS THE CABLE OK 4 3 2 1 The Pins Labeled 1 Should Have Continuity Between Themselves as Should the Pins Labeled 2 and so on The diskette drive pow...

Page 176: ...01 20 Copyright IBM Corp 1981 XXXXX Bytes free OK iHEO 2liL i p 3 EZaa 40333 sk IOB DID ADVANCED POST SUCCESSFULLY COMPLETE The 64KB memory and display expansion is bad Replace it Repeat advanced POST...

Page 177: ...y Expansion The diskette drive adapter has been replaced and the message 26XX stiU appears during advanced POST Reattach the original diskette drive adapter DOES THE SYSTEM UNIT CONTAIN A 64KB MEMORY...

Page 178: ...ID UNDER THE DISKEITE DRIVE SYMBOL BLINKING The system board is bad Replace it Reinstall the original diskette drive adapter Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is...

Page 179: ...advanced test takes as long as three minutes to complete 1 Move the cursor to the ID under the modem symbol 2 Press the Enter key DO YOU HAVE UNDER THE MODEM SYMBOL YES Go to page 3 830 7 Internal Mo...

Page 180: ...anced test 1 4r8r5 E I 1 I X E 64 KB DO YOU HAVE UNDER THE MODEM SYMBOL The problem has been corrected Repeat advanced POST and the advanced tests to ensure that the IBM PCjr is operating correctly Th...

Page 181: ...then pushing it back down 3 Set the system unit s Power switch to On 4 Bring the advanced test menu to your screen IS THE ID UNDER THE MODEM SYMBOL BLINKING The problem has been corrected Repeat adva...

Page 182: ...ower switch to On 5 Bring the advanced test menu to your display IS THE ID UNDER THE MODEM SYMBOL BLINKING Replace the system board Reattach the original modem modem 1 Repeat advanced POST and the adv...

Page 183: ...y Between Themselves as Should the Pins Labeled 2 and so on NO Replace the modem cable Repeat advanced POST and the advanced tests to ensure that the IBM PCjr is operating correctly YES You have compl...

Page 184: ...Notes 3 830 8 Luternal Modem...

Page 185: ...system unit s Power switch to Off 2 Disconnect any cable connected to the system unit s connector S 3 Plug the serial wrap plug into the system unit connector S VQ Connector S Serial Wrap Plug CONTINU...

Page 186: ...Move the cursor to the ID I under the RS232 7 Press the Enter key The test takes approximately four minutes to complete DO YOU HAVE UNDER THE RS232 3 840 2 RS232 The system board is bad Replace it Re...

Page 187: ...ition to Position The adapter cable for serial devices is bad Replace it Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correctly The RS232 interface is working c...

Page 188: ...Notes v_ 3 840 4 RS232...

Page 189: ...mplete the RS232 Advanced Test 1 Set the system unit s Power switch to Off 2 Set the printer s Power switch to Off 3 Verify that forms are properly inserted 4 Press and hold the paper feed button whil...

Page 190: ...Compare your printout with the one below DOES YOUR PRINTOUT MATCH WITHOUT ANY ERRORS NO Go to the Failure Symptom Table on page 3 850 17 3 850 2 Compact Printer...

Page 191: ...i Observe the control panel IS THE READY LIGHT ON NO Go to page 3 850 6 Compact Printer 3 850 3...

Page 192: ...o On 3 Bring the advanced test menu to your screen 4 Move the cursor to the second advanced test menu page IS THE COMPACT PRINTER SYMBOL ON YOUR SCREEN NO The logic card is bad Replace it Repeat the a...

Page 193: ...elow DOES YOUR PRINTOUT MATCH WITHOUT ANY ERRORS NO The logic card is bad Replace it Repeat the advanced test to ensure that the IBM PC Compact printer is operating correctly YES You have finished the...

Page 194: ...rd 4 Install the printer top cover 5 Set the printer s Power switch to On IS THE READY LIGHT ON NO The IBM PC Compact printer is bad Replace it YES The problem has been corrected Repeat the advanced t...

Page 195: ...Insert a sheet of plain bond paper into the pnnter 4 Press and hold the paper feed button while setting the printer s Power switch to On 5 Allow the pnnter to run for the entire sheet of paper and the...

Page 196: ...ond paper and reinstall thermal forms into the printer 7 Press and hold the paper feed button while setting the printer s Power switch to On DOES THE PRINTER BEGIN TO PRINT YES Go to page 3 850 2 3 85...

Page 197: ...echanism for Any weak or broken springs Any worn or broken gears A damaged platen Print Mechanism ARE ALL OF THE PARTS IN GOOD CONDITION NO The print mechanism is bad Replace it Repeat the advanced te...

Page 198: ...NE VOLTAGE IS PRESENT ON THE POWER SUPPLY CARD AND TRANSFORMER ASSEMBLY 4 The voltages on the CNP connector should be within the ranges listed below 5 Measure these voltages now CNP rrm Pin 1 to Pin 2...

Page 199: ...stance on the CNK connector while pressing and releasingthe paper feed button 4 Measure these resistances now Low Ohm High Ohm Pin 3 to Pin 4 Pressed 0 2 Pin 3 to Pin 4 Released WERE YOU ABLE TO READ...

Page 200: ...onnector should be within the ranges hsted below 4 Measure these resistances now Low Ohm High Ohm WERE YOU ABLE TO READ THE CORRECT RESISTANCES NO The print mechanism is bad Replace it Repeat the adva...

Page 201: ...ions Print Head I m Leadscrew Drive Gear DID THE PRINT HEAD MOVE SMOOTHLY EN BOTH DIRECTIONS The print mechanism is bad Replace it Repeat the advanced test to ensure that the IBM PC Compact printer is...

Page 202: ...r should be within the range listed below 3 Measure this resistance now Pin 1 to Pin 2 Print Head Low Ohm High Ohm 0 2 WERE YOU ABLE TO READ THE CORRECT RESISTANCE NO The print mechanism is bad Replac...

Page 203: ...me 2 The resistance on the CNH connector should be infinity 3 Measure this resistance now Print Head HisisuSi to Pin 2 WERE YOU ABLE TO READ THE CORRECT RESISTANCE NO The print mechanism is bad Replac...

Page 204: ...6 Pin 2 to Pin 4 24 36 Pin 2 to Pin 6 24 36 WERE YOU ABLE TO READ THE CORRECT RESISTANCES NO The print mechanism is bad Replace it Repeat the advanced test to ensure that the IBM PC Compact printer is...

Page 205: ...mptom Table Failure Symptom Go To Page Print Quality 3 850 18 Print Dots Missing Extra or Random 3 850 19 Forms Feeding Erratic or No Feeding 3 850 20 Erratic Carriage Motion 3 850 19 Compact Printer...

Page 206: ...a a P a e i urnZo M Se 6iFri i f jni t D t iiM BCDEF GHI J KLf1H0 PQRS TUVW XYZ E a b c d e f 9 h i K YfiFcii riiiKa20i r rTlZ r Ties 123456789 aiA i DEF GH ft t srrt i C i6Sa a Se i iA6 a ESo aiiyc...

Page 207: ...1 to Pin 9 36 50 Pin 2 36 50 Pin 3 36 50 Pin 4 36 50 Pin 5 36 50 Pin 6 36 50 Pin 7 36 50 Pin 8 to Pin 9 36 50 WERE YOU ABLE TO READ THE CORRECT RESISTANCES NO The print mechanism is bad Replace it Re...

Page 208: ...ligned parallel to the sides of the printer for proper feeding DID YOU FIND ANY OBSTRUCTIONS YES Remove any obstructions NO The print mechanism is bad Replace it Repeat the advanced test to ensure tha...

Page 209: ...A is the graphics printer print test C is the parallel printer attachment test it requires the parallel printer attachment wrap plug 1 Set the system unit s Power switch to On 2 Bring the advanced tes...

Page 210: ...raphics printer Power switch to OFF 3 Disconnect the printer cable from the parallel printer attachment 4 Plug the parallel printer attachment wrap plug into the parallel printer attachment Parallel P...

Page 211: ...the cursor to the ID C under the graphics printer symbol 8 Press the Enter key DO YOU HAVE UNDER THE GRAPHICS PRINTER SYMBOL Replace the parallel printer attachment Repeat advanced POST and the advanc...

Page 212: ...l printer attachment 3 Plug the printer cable into the parallel printer attachment 4 Set the system unit s Power switch to On 5 Set the graphics printer s Power switch to ON 6 Bring the advanced test...

Page 213: ...rinter should have typed several lines The menu should have reappeared with under the graphics printer symbol DO YOU HAVE UNDER THE GRAPHICS PRINTER SYMBOL NO Go to page 2 900 7 Parallel Printer Attac...

Page 214: ...2 i 3 y 8 0123456789 SABCDEFGHIJKLMNO F QFtS riJVWX YZ C X abcde f ghi j kl mno I s t Li y C Ai d i AniN532vl r iilist i Ezii If you have no printer output if your printout does not look the same as t...

Page 215: ...The advanced test detected an error xxxx 1 Make a note of the number under the graphics printer symbol CONTINUE Parallel Printer Attachment 3 900 7...

Page 216: ...tachment 4200 Out of paper Correct the problem then repeat the test If you get the same error go to the PIC Parallel Printer on page 3 1400 1 4300 Continue to the next page 4400 Printer error Go the P...

Page 217: ...connected to the graphics printer and system unit correctly 3 Set the graphics printer s Power switch to OFF then to ON 4 Repeat the advanced test ID A DO YOU HAVE 4300 UNDER THE GRAPHICS PRINTER SYM...

Page 218: ...inter attachment Make a note that this is parallel printer attachment 2 5 Repeat the graphics printer advanced test ID A DO YOU HAVE 4300 UNDER THE GRAPHICS PRINTER SYMBOL The problem has been correct...

Page 219: ...n reconnecting it 3 Set the system unit s Power switch to On 4 Bring the advanced test menu to your display screen ARE THE roS UNDER THE GRAPHICS PRINTER SYMBOL BLINKING The problem has been corrected...

Page 220: ...ve the parallel printer attachment and set it aside Make a note that this parallel printer attachment 1 3 Attach a new parallel printer attachment Make a note that this is parallel printer attachment...

Page 221: ...stem board is bad Replace it Reattach the original parallel printer attachment attachment 1 Repeat advanced POST and the advanced tests to ensure that the IBM PCyr is operating correctly The problem h...

Page 222: ...Notes 3 900 14 ParaUel Printer Attachment...

Page 223: ...rd is checked by using a wrap plug The attachable joystick itself is checked using customer level tests The service plug is used as the attachable joystick wrap plug 1 Set the system unit s Power swit...

Page 224: ...ur display screen 6 Move the cursor to the joystick symbol 7 Press the Enter key 47 8 5 I X E DO YOU HAVE UNDER THE JOYSTICK SYMBOL The system board is bad Replace it Repeat advanced POST and the adva...

Page 225: ...ard is operating correctly To test the attachable joystick you use the customer level joystick test 1 Set the system unit s Power switch to Off 2 Remove the service plug and set it aside CONTTNUE H Jo...

Page 226: ...e sure that the system unit s Power switch is set to Off 2 Plug in one attachable joystick It does not matter which connector J you use 3 Set the system unit s Power switch to On CONTINUE 3 1300 4 Joy...

Page 227: ...to the joystick symbol 6 Press the Enter key 7 The joystick test screen should appear and remain on your screen DOES THE JOYSTICK TEST SCREEN REMAIN ON YOUR SCREEN The attachable joystick is bad Repl...

Page 228: ...n may disappear abruptly and be replaced by the customer level test menu with a two letter error message under the joystick symbol DID THE JOYSTICK TEST SCREEN REMAIN AS YOU MOVED THE STICK The attach...

Page 229: ...CAN YOU MOVE THE jt TO FOLLOW THE INSIDE EDGE OF ITS BOX The attachable joystick is bad Replace it If you have another attachable joystick to test go to page 3 1300 4 Otherwise repeat advanced POST a...

Page 230: ...ID EACH JOYSTICK BUTTON AFFECT ONE BLOCK ON THE SCREEN AS DESCRIBED ABOVE The attachable joystick is bad Replace it If you have another attachable joystick to test go to page 2 1300 4 Otherwise repeat...

Page 231: ...until failing FRU is isolated 2 Press Online switch Does Online light go out YES Go to step 3 NO Go to page 3 1400 25 Control Panel 3 Press Line Feed and Forms Feed Do forms step when each switch is p...

Page 232: ...rsonal Computer Graphics Printer i t 5 7 Q s 5 a ABCDEFGHIJKLMNO PflRSTUVKtVZIM abcdefghi j klmno 3 C r s ti V s C S y 8 0123456789 9ABCDEFQHIJKLMNO P QRSTUVUJX YZ C abcde f ghi j kl mno p cur ui v C...

Page 233: ...stuvwKyz C 3 ef ghi j kj u nopqrstuvwKyz C f ghi j kl mnopqrstuvw yz t I j dCin ghi j kl mnopqrstuvwxyz i di inw hi j k 1 mnopqrstuvw yz C ddnM i kl mnopqrstuvwxyz C nopar Any errors YES Go to page 3...

Page 234: ...lity Printing too light poor print quality Smudged printing Uneven printing characters or lines Row s of print dots missing Random print dots missing Extra print dots 3 1400 17 3 1400 18 3 1400 18 3 1...

Page 235: ...4 Removal Replacement and Adjustments Power off Plug in printer power cord Power on for 1 minute Does the fuse open YES Go to step 2 NO Problem resolved NO Check for approximately 12 ohms on primary s...

Page 236: ...r card See Section 5 Locations Plug in printer power cord Power on for 1 minute then power off Unplug printer power cord and check for open fuse Is the fuse open DANGER Static voltage may be present o...

Page 237: ...resent on the AC filter circuit board and transformer Caution should be exercised when measuring secondary voltages Color Lead Lead Min Voltage Max 1 Voltage Gray CN2 1 CN2 2 7 6 Vac 10 4 Vac Orange C...

Page 238: ...elow Use the ground pin on the drive circuit card DANGER Line voltage is present on the AC filter circuit board and transformer Caution should be exercised when measuring DC voltages Pin No Min Voltag...

Page 239: ...6 Measure DC voltages on 60 volt scale on pins CN6 1 and CN6 2 located on control circuit card use the DC ground pin on the driver circuit card for common lead Find the difference in the two readings...

Page 240: ...ed See Section 4 Removal Replacement and Adjustments 4 Check print head for broken wires Replace print head if wires are damaged See Section 4 Removal Replacement and Adjustments 5 Set printer Power s...

Page 241: ...level meter deflection YES Go to step 7 NO Is there a constant Down level YES Go to page 3 1400 5 Power Supply Check Replace the left margin sensor if the power supply checks good See Section 4 Remova...

Page 242: ...rint head to the next detented position Use the driver circuit card ground pin for common Is there an Up level to a Down level meter deflection YES Go to step 8 NO Is there a constant Up level YES Rep...

Page 243: ...it card and pins CN6 2I 22 23 and 24 stepper motor coils on cable end for a reading of approximately 45 ohms Does the resistance 45 ohms YES NO Replace control cards See Section 4 Removal Replacement...

Page 244: ...ings Broken feed pins Replace left or right forms tractors if damaged See Section 4 Removal Replacement and Adjustments 4 Check for a loose or broken carriage belt Check for broken cogs on the belt Ad...

Page 245: ...d right tractors for broken feedpins and replace if broken See Section 4 Removal Replacement and Adjustments 10 Check for 45 ohms resistance on forms feed motor coils between pin CN6 14 and pins CN6 2...

Page 246: ...ribbon and replace if binding 3 Visually check for worn or broken ribbon drive gears and replace carriage drive assembly if damaged See Section 4 Removal Replacement and Adjustments 4 Check for bent r...

Page 247: ...if necessary See Section 4 Removal Replacement and Adjustments 5 Check print head for broken or binding wires Replace print head if wires are broken or bound See Section 4 Removal Replacement and Adj...

Page 248: ...oval Replacement and Adjustments 3 Check for dirty print head and print wires Clean if dirty 4 Check for dirty or bent ribbon shield and replace shield if damaged See Section 4 Removal Replacement and...

Page 249: ...head See Section 4 Removal Replacement and Adjustments 5 Remove CN6 on driver circuit card See Section 5 Locations Measure approximately 22 ohms between pin CN6 10 male side and each head coil pin CN6...

Page 250: ...ee Section 4 Removal Replacement and Adjustments 5 Remove CN6 on driver circuit card See Section 5 Locations Measure approximately 22 ohms between pin CN6 10 male side and each head coil pin CN6 1 to...

Page 251: ...The components on the power board can become hot with the system unit On 1 Set the system unit s Power switch to Off 2 Remove the diskette drive 610 3 Remove the 4 screws holding the mounting bracket...

Page 252: ...tte drive signal cable to the rear of the diskette drive 8 Replace the diskette drive adapter 605 9 Connect the diskette drive signal cable to the diskette drive adapter 10 Replace the internal modem...

Page 253: ...e diskette drive mounting bracket to the diskette drive 625 2 Place the diskette drive into the bottom cover 3 Slide the diskette drive to the the front until its mounting bracket studs align with the...

Page 254: ...the studs are clear of the system board DO NOT PULL ON THE CIRCUIT BOARD 9 Shde the diskette drive and its mounting bracket to the rear until they are clear of the front cover opening 10 Lift the dis...

Page 255: ...ct the diskette drive fan power cable from the diskette drive 7 Disconnect the diskette drive power cable from the diskette drive Diskette Drive Power Cable Diskette Drive Fan Power Cable 4 600 4 Dine...

Page 256: ...t the system unit s Power switch to Off 2 Remove the system unit top cover 100 3 Remove the internal modem if installed 830 4 Remove the 64KB Memory and Display Expansion if installed 200 5 Remove the...

Page 257: ...diskette drive signal cable to the diskette drive adapter 2 Plug in the diskette drive adapter by gently pushing it straight down into its system board connector making sure that the adapter rests in...

Page 258: ...the system unit On 1 Set the system unit s Power switch to Off 2 Remove the system unit top cover 100 3 Remove the diskette drive signal cable from the diskette drive adapter 4 Gently pull the disket...

Page 259: ...Notes 4 500 6 Dtqilay...

Page 260: ...rtical size control clockwise until the black areas at the top and bottom of the screen just disappear If one of the black areas disappears before the other continue to turn the control until the seco...

Page 261: ...isplay Vertical Size Adjustment 515 1 Set the system unit s Power switch to Off 2 Set the display s Power switch to On 3 Turn the brightness and contrast controls fully clockwise Contrast Control 4 50...

Page 262: ...creen rolling top to bottom or bottom to top 1 Set the display s Power switch to On 2 Set the system unit s Power switch to On 3 Wait for POST to complete 4 Turn the vertical hold control clockwise as...

Page 263: ...r switch to Off 3 Plug the display s signal cable into the IBM Adapter Cable for IBM Color Display 4 Plug the IBM Adapter Cable for IBM Color Display into system unit cormector D 5 Plug the display s...

Page 264: ...Power switch to Off 2 Set the system unit s Power switch to Off 3 Disconnect the display s power cord from the wall outlet 4 Disconnect the display s signal cable from the IBM Adapter Cable for IBM Co...

Page 265: ...Notes 4 300 4 Keyboard...

Page 266: ...f 2 Turn the keyboard bottom side up 3 Slide the battery compartment cover open 4 Follow the instructions on the battery cover and replace the batteries 5 Slide the battery compartment cover closed 6...

Page 267: ...sts 2 Alignthe pins of the infra red receiver with the system board connector and the mounting posts with the holes in the infra red receiver 3 Plug in the infra red receiver by gently pushing it stra...

Page 268: ...ecome hot with the system unit On 1 Set the system unit s Power switch to Off 2 Remove the system unit top cover 100 3 Gently pullthe infra red receiverstraight up from its system board connector You...

Page 269: ...unit The components on the power board can become hot with the system unit On 1 Plug in the 64KB memory and display expansion by gently pushing it straight down into its system board connector 2 Repla...

Page 270: ...omponents on the power board can become hot with the system unit On 1 Set the system unit s Power switch to Off 2 Remove the system unit top cover 100 3 Gently puUthe 64KB memory and display expansion...

Page 271: ...Notes 4 100 12 System Unit...

Page 272: ...if present 615 10 Replace the diskette drive adapter if present 605 11 Replace the internal modem if present 835 12 Replace the 64KB memory and display expansion if present 205 13 Replace the system...

Page 273: ...pressure to the hold down latches 0 until the system board clears them to slip underneath 4 Installthe four system board mounting screws 0 5 Installthe system board mounting screw 0 if present 4 100...

Page 274: ...System Board Replacement 125 1 Place the system board into the base 2 Slide the system board toward the right side until it is in its mounting slot System Board System Unit 4 100 9...

Page 275: ...16 Slide the system board toward the left to clear the mounting slot on the right side 17 Lift the system board out of the bottom cover System Board 4 100 8 System Unit...

Page 276: ...ardmounting screw 0 if present 15 Use your finger to apply pressure to the hold down latches 0 and liftthe system boardenough to clear the latches Note The system board is held by two hold down latche...

Page 277: ...e plate if present 660 9 Remove the diskette drive adapter if present 600 10 Remove the diskette drive if present 610 11 Remove the power board 020 12 Remove the infra red receiver 300 64KB Memory and...

Page 278: ...me hot with the system imit On 1 Set the system unit s Power switch to Off 2 Remove any cartridges from the cartridge slots 3 Remove all cables plugged into the back of system unit 4 Remove the parall...

Page 279: ...Side Cover Replacement 115 1 Align the studs of the side cover with the mounting holes 2 Snap the studs into the mounting holes 4 100 4 System Unit...

Page 280: ...Side Cover Removal 110 1 Gently pry the side cover from its mounting holes System Unit 4 100 3...

Page 281: ...er toward the front of the unit making sure its front hp is inside the groove in the front of the system unit 3 Ahgn the top cover tabs with the slots in the rear of the bottom cover 4 Gently press do...

Page 282: ...em unit s Power switch to Off 2 Gently pry up the rear comers and middle of the top coverat points 0 3 Lift the rear edge of the top cover xmtilits tabs are clear of the bottom cover 4 Shde the top co...

Page 283: ...6 Plug the power cable from the power transformer into system unit connector P 7 Plug the power transformer s power cord into the wall outlet CAUTION Connect to a properly grounded wall outlet 4 020...

Page 284: ...nto its two system board connectors Make sure that the power board rests in the notch at the rear of the base Power Board 3 Connect the diskette drive power cable if present to the power board 4 Conne...

Page 285: ...ve power cable if present from the power board 7 Disconnect the diskette drive fan power cable if present from the power board 8 Gently pull the power board straight up from its system board connector...

Page 286: ...e power board can become hot with the system unit On 1 Set the system unit s Power switch to Off 2 Unplug the power transformer s power cord from the wall outlet 3 Unplug the power transformer s power...

Page 287: ...Notes 4 6...

Page 288: ...umber in parentheses An example is 1 Set the system unit s Power switch to Off 2 Remove the system unit s top cover 100 3 Remove the Step 2 refers you to procedure 100 whichhas complete instructions f...

Page 289: ...al 1482 4 1400 52 Print Head Replacement 1484 4 1400 54 Print Head Gap Adjustment 1486 4 1400 56 Print Mechanism Assembly Removal 1488 4 1400 57 Print Mechanism Assembly Replacement 1490 4 1400 58 Rib...

Page 290: ...2 Covers 4 1400 23 Access Cover 1430 4 1400 23 Top Cover Removal 1432 4 1400 24 Top Cover Replacement 1434 4 1400 27 Base Cover Removal 1436 4 1400 29 Base Cover Replacement 1438 4 1400 30 Forms Feed...

Page 291: ...tte Drive Fan Replacement 640 4 600 13 Diskette Drive Belt Removal 645 4 600 14 Diskette Drive Belt Replacement 650 4 600 15 Diskette Drive Speed Adjustment 655 4 600 16 Diskette Drive Face PlateRemov...

Page 292: ...Side Cover Replacement 115 4 100 4 System Board Removal 120 4 100 5 System Board Replacement 125 4 100 9 Memory 4 200 1 64KB Memory and Display Expansion Removal 200 4 200 1 64KB Memory and Display Ex...

Page 293: ...Notes 3 1400 34 Graphics Printer...

Page 294: ...low Operating Procedure Press and hold the line feed switch while you position the printer Power switch to ON To stop the test before it is completed Set the printer Power switch to OFF IBM Personal C...

Page 295: ...ood Return to page 3 1400 1 Printer Entry NO Measure for approximately 10 to 12 Vdc at pin 3 of control panel Is there 12 Vdc YES Replace both control cards See Section 4 Removal Replacement and Adjus...

Page 296: ...mechanism assembly See Section 4 Removal Replacement and Adjustments NO Measure for a voltage pulsing from 0 to 12 Vdc at pin 10 of control panel Use pin 8 for ground See Section 5 Locations Power of...

Page 297: ...See Section 5 Locations Is there 5 Vdc NO Replace both control cards See Section 4 Removal Replacement and Adjustments YES Press and hold form feed switch Measure 0 to 1 5 Vdc on pin 6 of control pan...

Page 298: ...ee Section 5 Locations Is there 5 Vdc NO Replace both control cards See Section 4 Removal Replacement and Adjustments YES Press and hold line feed switch Measure 0 to 1 5 Vdc on pin 7 of control panel...

Page 299: ...to 5 5 Vdc on pin 5 of control panel Use pin 8 for ground See Section 5 Locations Is there 5 Vdc NO Replace hoth control cards See Section 4 Removal Replacement and Adjustments YES Press and hold onl...

Page 300: ...ximately 10 to 12 Vdc at pin 4 on the control panel Use ground pin on the driver circuit card See Section 5 Locations Is there 12 Vdc YES Replace control cards See Section 4 Removal Replacement and Ad...

Page 301: ...ection 4 Removal Replacement and Adjustments NO Go to page 3 1400 5 Power Supply Check 4 Is the online light on YES Go to step 5 NO Measure for approximately 10 to 1 2 Vdc at pin I on control panel Us...

Page 302: ...N3 20 11 0 Vdc 15 4 Vdc CN3 8 21 6 Vdc 26 4 Vdc Are the voltages correct YES Go to step 2 NO Go to page 3 1400 5 P5wer Supply Check 2 Power off the printer Disconnect the printer cable at the printer...

Page 303: ...ents 2 Check for a loosely mounted print head See Section 4 Removal Replacement and Adjustments 3 Check for worn gears in carriage drive assembly and replace assembly if needed See Section 4 Removal R...

Page 304: ...Measure for 10 5 to 12 5 Vdc on pin 1 of control panel See Section 5 Locations Is there 12 Vdc YES Replace both control cards See Section 4 Removal Replacement and Adjustments NO Replace Control Pane...

Page 305: ...tion 4 Removal Replacement and Adjustments NO Replace print head See Section 4 Removal Replacement and Adjustments 2 Set printer Power switch to OFF Check continuity of end of forms switch from pin CN...

Page 306: ...6 1 to 9 male side Does the resistance 22 ohms YES Replace both control cards See Section 4 Removal Replacement and Adjustments NO Disconnect print head cable and check pins 1 through 9 on print head...

Page 307: ...n the top cover is off the system unit The components on the power board can become hot with the system unit On 1 Place the diskette drive into the mounting bracket 2 Adjust the diskette drive mountin...

Page 308: ...can become hot with the system unit On 1 Set the system unit s Power switch to Off 2 Remove the diskette drive 610 3 Loosen the 4 screws holding the mounting bracket to the diskette drive 4 Install t...

Page 309: ...in the mounting bracket and rests against the opening in the front of the system unit 6 Tighten the left mounting bracket screws 7 Remove the diskette drive from the system unit 8 Tighten the right m...

Page 310: ...nit On 1 Set the system unit s Power switch to Off 2 Remove the diskette drive 610 3 Remove the two screws holding the fan to the mounting bracket Note The diskette drive fan is held to the mounting b...

Page 311: ...become hot with the system unit On Align the diskette drive fan so that the pinsmolded into the mounting bracket mate with the holes in the fan 1 Use two screws andfasten thefanassembly to the disket...

Page 312: ...ot with the system unit On 1 Set the system unit s Power switch to Off 2 Remove the diskette drive 610 3 Remove the diskette drive mounting bracket 620 4 Turn the diskette drive on its back 5 Remove t...

Page 313: ...become hot with the system unit On 1 Turn the diskette drive on its back 2 Place the drive belt over both pulleys small pulley first Note The smooth side of the belt goes against the pulleys 3 Replac...

Page 314: ...er board can become hot with the system unit On 1 Set the system unit s Power switch to Off 2 Remove the diskette drive 610 3 Remove the diskette drive from its mounting bracket 620 4 Jumper test poin...

Page 315: ...naslong as the system unit s Power switch is On and the test points are jumpered 8 Observe theblack strobe marks ontheouter ring of the drive pulley underflorescent light 9 Adjust the variable resisto...

Page 316: ...stpoint 9 andposition 11 of the resistor block RNl 12 Removethe diskette drivepower cablefrom the diskette drive 13 Replace the diskette drive mounting bracket 625 14 Adjust the diskette drive mountin...

Page 317: ...Removal 660 1 Set the system unit s Power switch to Off 2 Remove the system unit top cover 100 3 Remove the diskette drive face plate by pushing on it from the inside of the system unit It willsnap ou...

Page 318: ...1 Place the diskette drive face plate into the system unit s front cover opening 2 Snap the diskette drive face plate into placeby pushingon it from the outside of the systemunit 3 Replace the systemu...

Page 319: ...omponents on the power board can become hot with the system unit On 1 Set the system unit s Power switch to Off 2 Remove the system unit top cover 100 3 Unplug the modem cable from the system unit con...

Page 320: ...board can become hot with the system unit On 1 Plug the internal modem in by gently pushing it straight down into both of its system board connector making sure that the internal modem rests in the n...

Page 321: ...y paper 4 TUt the printer up and remove the cover mounting screw 5 Insert a flat bladed screwdriver through one of the two access holes in the bottom cover 6 Gently pry down on the screwdriver and beg...

Page 322: ...e it towards the front of the printer to separate it from the bottom cover Note The control panel is attached by a cable inside the printer Note how the cable is routed so that it can be routed correc...

Page 323: ...9 When the covers are separated set the top cover off to the side and disconnect CNK control panel cable from the logic card Compact Printer 4 850 3...

Page 324: ...of the top cover onto the bottom cover with the three rear tabs under their latches 3 Pivot the the top cover down until it closes securely 4 Tilt the printer up and install the cover mounting screw...

Page 325: ...Unplug the power cable from the wall outlet 3 Remove the printer top cover 851 4 Disconnect CNH CNM and CNT from the logic card 5 Remove the ground wire from the transformer and lift the print mechan...

Page 326: ...Print Mechanism Replacement 854 1 Ensure that the rubber mounting grommets are in place as shown Rubber Mounting Grommets 4 850 6 Compact Printer...

Page 327: ...sm onto the four mounting studs 3 Connect CNH CNM and CNT to the logic card 4 Install the ground wire to the transformer 5 Install the top cover 852 6 Connect the power cord to the printer CNH Ground...

Page 328: ...cord from the wall outlet 3 Remove the printer top cover 851 4 Remove the print mechanism 854 5 Disconnect CNP 6 Remove the two screws from the signal cable clamp 7 Remove the logic card ground wire s...

Page 329: ...Press the three logic card latches away from the logic card and lift the card out of the bottom cover Logic Card Latches Compact Printer 4 850 9...

Page 330: ...tches snap into place 3 Install the two screws through the signal cable clamp and tighten into the bottom cover 4 Install the logic card ground wires and their screws 5 Connect CNP 6 Install the print...

Page 331: ...moval 900 1 Set the system unit s Power switch to Off 2 Unplug the printer cable if present 3 Remove the side cover if present 110 4 Loosenthe fourcaptive screws 0 5 PuU the parallel printer attachmen...

Page 332: ...lign the studs on the parallel printer attachment with the holes in the right side of the system unit 3 Press the parallel printer attachment and the system unit together 4 Tighten the four captive sc...

Page 333: ...printer cable 2 Remove forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Remove ribbon cartridge 6 Remove top cover 1432 7 Loosen holddown screw incarriage drive assembly 8 Pivot carriage d...

Page 334: ...motor so that motor and drive gears mesh 12 Adjust gearbacklash Q for minimum 13 Tighten motor mounts screws 14 Move print head back and forth to check for smooth gear operation with no binding 4 1400...

Page 335: ...let and disconnect printer cable 2 Remove forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Remove ribbon cartridge 6 Remove top cover 1432 7 Remove left front and right rear screws from car...

Page 336: ...9 Pullbelt from clipunderneathprint head carriage by pulling down on belt 10 Loosen screw in slotin carriage drive assembly 0 11 Pivot carriage drive assembly to right 4 1400 4 Graphics Printer...

Page 337: ...12 Lift belt off pulley at each end 13 Guide belt 0 through opening in rightside of print mechanism assembly frame Graphics Printer 4 1400 5...

Page 338: ...ough opening in right side of frame of print mechanism assembly 2 Guide belt along base toward carriage drive assembly 3 Place belt onto pulleys at both ends 4 Insert belt into retaining clip under th...

Page 339: ...r mounts 0 6 Install screws 0 intomotorbase donot tighten 7 Perform carriage belt adjustment 1400 8 Replace top cover 1434 9 Replace ribbon cartridge 10 Replace access cover 1430 11 Replace forms rack...

Page 340: ...op cover 1432 7 Move carriage to right side of frame 8 Loosen nuts 0 oncarriage shaft 0 andpivot left end of shaft to front s 9 Remove screw e and clamp 0 from left margin sensor 10 Remove carriage dr...

Page 341: ...retaining screw 3 Replace leftmargin sensor screw 0 andclip 0 4 Place belt over drive pulley and perform carriage belt adjustment 1400 Drive Assembly Left Margin Sensor 5 Pivotcarrier shaft 0 into the...

Page 342: ...7 Perform left margin sensor adjustment 1470 8 Replace top cover 1434 9 Replace ribbon cartridge 10 Replace access cover 1430 11 Replace forms rack 1440 4 1400 10 Graphics Printer...

Page 343: ...t Applicable On 1 2 CR Print Only Print and Line Feed On 1 3 Buffer Full Print Only Print and Line Feed Off 1 4 Cancel Code Invalid Valid Off 1 5 Not Applicable On 1 6 Error Buzzer Sound Does Not Soun...

Page 344: ...ve forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Remove Top cover 1432 6 Remove driver circuit card 1420 7 Unplug connectorCN2 Q 8 Unplug Connector CN6 0 9 Unplug groundwire 0 10 Remove...

Page 345: ...12 Press threetabs 0 0 and 0 Liftcardclear of tabs ac DPDQ U N Tnnnnnnn Uu DDlDOWtt Graphics Printer 4 1400 13...

Page 346: ...13 Lift control circuit card to clear the six posts Carefully pull control circuit card away from print mechanism assembly TO III lltiltttLtim 4 1400 14 Graphics Printer...

Page 347: ...Control Circuit Card Replacement 1417 1 Guide control circuit card into open area behind print mechanism assembly Ml 00 irmitittmuttii Graphics Printer 4 1400 15...

Page 348: ...r control circuit card onto base cover and snap the three retaining tabs 0 into place 4 Install 3 holddown screws 0 5 Guide control panel cable along right side of base cover and around to front 6 Pla...

Page 349: ...und wire 0 8 Install connector CN2 0 9 Install connector CN6 0 I e 10 Replace driver circuit card 1422 11 Replace top cover 1434 12 Replace access cover 1430 13 Replace forms rack 1440 Graphics Printe...

Page 350: ...o OFF unplug printer power cord form waU outlet and disconnect printer cable 2 Remove forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Remove top cover 1432 6 Unplug connector CN6 o 7 Remov...

Page 351: ...8 Disconnect driver circuit card from control card at CN4and CN5 Liftat 0 thenat 0 M Graphics Printer 4 1400 19...

Page 352: ...fy proper alignment before powering on to prevent circuit card damage Connect driver circuit card to control circuit card by pressing down firmly on connectors Be sure to guide connector CN6 cable int...

Page 353: ...printer power cord from wall outlet and discoimect printer cable Remove forms Remove forms rack 1440 Remove access cover 1430 Remove top cover 1432 Invert top cover Remove two screws 0 fromunderside...

Page 354: ...Control Panel Replacement 1427 1 Insert control panel into top cover 2 Install two screws 0 3 Replace top cover 1434 4 Replace access cover 1430 5 Replace forms rack 1440 4 1400 22 Graphics Printer...

Page 355: ...Covers Access Cover 1430 1 Raise access cover 2 Lift cover from base as shown L Graphics Printer 4 1400 23...

Page 356: ...1 Set printer POWER switch to OFF unplug power cord from wall outlet 2 Remove forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Pull forms feed knob from shaft using a steady firm pull 4 14...

Page 357: ...wn and place on smooth surface 7 Loosen completely using a Phillips screwdriver the four comer screws in the base f 8 Turn printer rightside up CAUTION Be sure to grasp both printer and base cover Gra...

Page 358: ...control panel cable connector from control panel in top cover 10 Lift top cover away from base cover Lift left side first Then slide top cover to right to clear forms feed shaft 4 1400 26 Graphics Pr...

Page 359: ...Top Cover Replacement 1434 1 Position forms feedshaftthrough opening Q in top cover and lower top cover onto base cover 2 Connect control panel cable to control panel Graphics Printer 4 1400 27...

Page 360: ...3 Turn printer upside down 4 Install four screws t 5 Turn printer rightside up 6 Replace forms feed knob 1439 7 Replace access cover 1430 8 Replace forms rack 1440 4 1400 28 Graphics Printer...

Page 361: ...4 Remove access cover 1430 5 Remove top cover 1432 6 Remove power transformer 1475 7 Remove fuse filter card power cord 1452 8 Remove driver circuit card 1420 9 Remove control circuit card 1415 10 Rem...

Page 362: ...bly 1462 3 Replace print mechanism assembly 1490 4 Replace control circuit card 1417 5 Replace driver circuit card 1422 6 Replace fuse filter card power cord 1454 7 Replace power transformer 1477 8 Re...

Page 363: ...Forms Feed Knob 1439 1 Pull forms feed knob from shaft using steady firm pull Graphics Printer 4 1400 31...

Page 364: ...Foims Rack 1440 1 Remove forms 2 Compress rack on one side to unhook rack from printer frame 3 Lift rack away from frame r fj 4 1400 32 Graphics Printer...

Page 365: ...1440 Remove access cover 1430 Remove top cover 1432 Rotate lock levers Q to forward released position Loosen nuts on ends of tractor support shaft 0 Remove retaining clip on left end of guide shaft 0...

Page 366: ...d supportshaft 0 2 Place guide shaft and support shaft into slots on frame 3 Slide bushings on guide shaft into frame and replace retaining nuts on ends of support shaft 4 Replace top cover 1434 5 Rep...

Page 367: ...isconnect printer cable Remove forms Remove forms rack 1440 Remove access cover 1430 Remove top cover 1432 DANGER STATIC VOLTAGE MAY BE PRESENT ON THE FUSE FILTER CARD USE CAUTION IN THIS AREA 6 Remov...

Page 368: ...ER STATIC VOLTAGE MAY BE PRESENT ON THE FUSE FILTER CARD USE CAUTION IN THIS AREA 6 Remove safety shield from fuse filter card assembly 1496 7 Remove transformer primary cormector 0 from fuse filter c...

Page 369: ...ot 0 in base cover 3 Installscrew 0 into groundterminal of power cord 4 Installscrew 0 in center of fuse filter card 5 Connecttransformer primary 0 to fuse filter card 6 Replace safety shield onto fus...

Page 370: ...et and disconnect printer cable Remove forms Remove forms rack 1440 Remove access cover 1430 Remove top cover 1432 Remove power transformer 1475 Remove fuse filter card power cord 1452 Remove control...

Page 371: ...assembly Q onto base cover Replace print mechanismassembly 1490 Replace control circuit card 1417 Replace driver circuit card 1422 Replace fuse filter card power cord 1454 Replace power transformer 14...

Page 372: ...outlet and disconnect printer cable 2 Remove forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Remove top cover 1432 6 Remove two screws fromforms feedmotor mounts 7 Remove intermediate gea...

Page 373: ...clip 0 3 Place forms feedmotor 0 onto mounts 4 Install twoscrews 0 but do not tighten 5 Position forms feed motor to mesh gears with minimum backlash 0 and no binding 6 Tighten two screws 7 Replace to...

Page 374: ...le 2 Remove forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Remove top cover 1432 6 Remove ribbon cartridge 7 Insert a sheet of paper into the printer Position paper to the left frame 8 Me...

Page 375: ...cking Screw 10 Plug in the printer power cord Position the printer POWER switch to ON 11 Move the print head manually and align it with the 1 3 4 inch mark on the paper uupji n n i t Move Print Head a...

Page 376: ...nd pin of the driver circuit card 14 Place the positive lead of the meter on the yellow wire solder connection on the left margin sensor Negative Lead to Ground Pin on Driver Circuit Card Driver Circu...

Page 377: ...ove the left margin sensor to the right until the voltage on the meter is an up lever approximately 5 Vdc Note If the voltage reading on the meter stays at a down level move the print head one positio...

Page 378: ...Move the print head slightly to the left The voltage reading should drop to a down level approximately 0 Vdc Do not allow the print head to step to the next detented position 22 Move the print head sl...

Page 379: ...at step 18 26 If the speed is different between forward and reverse printing perform the following steps a Place positive lead of the voltage meter on the yellow wire solder coimection on the printer...

Page 380: ...oimect printer cable Remove forms Remove forms rack 1440 Remove access cover 1430 Remove ribbon cartridge Remove top cover 1432 Move carriage to right frame Remove retaining screw 0 andretaining clip...

Page 381: ...sensor 2 Positionleft margin sensorpivotholeoverpost 3 Replace retaining screw o and retaining clip 0 4 Readjust left margin sensor 1470 5 Replace top cover 1434 6 Replace ribbon cartridge 7 Replace...

Page 382: ...ve access cover 1430 Remove top cover 1432 DANGER STATIC VOLTAGE MAY BE PRESENT ON THE FUSE FILTER CARD USE CAUTION IN THIS AREA 6 Unplug coimector Q from fuse filter card 7 Unplug coimector from cont...

Page 383: ...ard note positioning of two connectors Install two base mounting screws 0 Install screw inground wire 0 ifpresent Plug coimector 0 into fuse filter card Plugconnector 0 into control circuit card 6 Rep...

Page 384: ...F unplug printer power cord from wall outlet and disconnect printer cable 2 Remove forms 3 Remove forms rack 1440 4 Remove access cover 1430 5 Remove ribbon cartridge 6 Remove top cover 1432 7 Pullpri...

Page 385: ...8 Pivotprintheadlocklever 0 clockwise 9 Lift printhead 0 andcable 0 from carriage Graphics Printer 4 1400 53...

Page 386: ...nectprintheadcable 0 at connector 4 Replace top cover 1434 5 Replace ribbon cartridge 6 Replace access cover 1430 7 Replace forms rack 1440 Note Broken wires may be the result of other problems If a p...

Page 387: ...ough 9 Replace the print mechanism assembly if there are any shorts or opens 2 Power on Check for 24 Vdc at pins CN6 1 through 9 on driver card use groimd pin for common lead If any pin has 24 Vdc rep...

Page 388: ...tprintheadgapadjusting lever 0 to the fourth position 0 3 Loosen nut 0 4 Rotatecarriage shaft 0 to obtain 65mm gap 026 betweenprintheadand platen 0 5 Tightennut e 6 Replace print mechanism assembly 14...

Page 389: ...440 4 Remove access cover 1430 5 Remove ribbon cartridge 6 Remove top cover 1432 7 Remove driver circuit card 1420 8 Remove control circuit card 1415 9 Remove twoscrews 0 frombaseunitof print mechanis...

Page 390: ...Print Mechanism Assembly Replacement 1490 1 Verify that the rubbergrommets 0 arein position shown Rear View 4 1400 58 Graphics Printer...

Page 391: ...nt mechanism assembly on base cover 3 Slide print mechanism assembly toward the rear overthreegroimding tabs 0 and vmder ground strap 0 4 Position rubbergrommets aroundplastic stops 0 Graphics Printer...

Page 392: ...ll screw 0 in ground strap 7 Replace control circuit card 1417 8 Replace driver circuit card 1422 9 Replace top cover 1434 10 Replace ribbon cartridge 11 Replace access cover 1430 12 Replace forms rac...

Page 393: ...all outlet and discoimect printer cable 2 Remove forms 3 Remove forms rack 1440 4 Remove ribbon cartridge 5 Remove access cover 1430 6 Remove top cover 1432 7 Remove print head 1482 8 Remove twoscrews...

Page 394: ...Ribbon Shield Replacement 1494 1 Position shield 0 and plate 0 on headcarriage 2 Insertscrews 0 do not tighten 4 1400 62 Graphics Printer...

Page 395: ...head 1484 5 Replace top cover 1434 6 Replace ribbon cartridge 7 Replace access cover 1430 8 Replace forms rack 1440 Carriage Piate Contact Must be Extablished 15 to 25 mm 006 to 010 in Piaten Ribbon...

Page 396: ...outlet and discoimect printer cable Remove forms Remove forms rack 1440 Remove access cover 1430 Remove top cover 1432 DANGER STATIC VOLTAGE MAY BE PRESENT ON THE FUSE FILTER CARD USE CAUTION IN THIS...

Page 397: ...IC VOLTAGE MAY BE PRESENT ON THE FUSE FILTER CARD USE CAUTION IN THIS AREA 1 Position safety shield on fuse filter card 2 Install screws 3 Replace top cover 1432 4 Replace access cover 1430 5 Replace...

Page 398: ...Notes 4 1400 66 Graphics Printer...

Page 399: ...6 Diskette Drive 5 7 IBM Color Display 5 8 IBM Graphics Printer Front 5 9 IBM Graphics Printer Rear 5 10 IBM Graphics Printer Top 5 12 Printer Cahle 5 13 Print Head and Cahle Rear 5 14 Left Margin Se...

Page 400: ...Notes 5 2...

Page 401: ...System Unit Front Base Keyboard Cord Optional Infra Red Receiver Cordless Keyboard Infra Red Emitter Top Cover Diskette Drive Face Plate Keyboard Cord Connector 5 3...

Page 402: ...r Joystick Joystick Spare Keyboard Light Pen Television Connector for Television 5 4 Power Transformer Direct Drive Power Video I Cassette Modem Serial Composite Video External Audio Attachable Joysti...

Page 403: ...Adapter Cable for Cassette A4 B4 3 Cassette Connector System Connector Red 1 B2 2 A1 Black 1 A2 2 A1 Gray 1 A4 2 B3 Adapter Cable for Serial Devices Adapter Cable for IBM Color Display A1 B1 5 5...

Page 404: ...System Unit Internal 64KB Memory and Display Expansion Power Board System Board 5 6 Diskette Drive Signal Cable Internal Modem Diskette Drive Diskette Drive Adapter Infra Red Receiver...

Page 405: ...Diskette Drive Diskette Drive Fan Diskette Drive Power Cable Diskette Drive Mounting Bracket Diskette Drive Signal Cable Diskette Drive 5 7...

Page 406: ...IBM Color Display 5 8 Power Switch i Contrast Knob Brightness Knob IBM Color Display...

Page 407: ...IBM Graphics Printer Front Print Head Gap Adjustment Lever Carriage Drive Assembly Left Margin Sensor Ribbon Shield Carriage Belt Print Head Carriage Shafts End Of Forms Switch Intermediate Gear 5 9...

Page 408: ...r Transformer Heat Sink Power Transistor 5 10 Power Transformer Primary Cable Fuse Filter Card Right View _ Ribbon Carriage orms Feed cartridae Mechanism Motor Motor Assembly OQ CN6 CN3 CN2 Control Ci...

Page 409: ...CQ n Vn PQ Miimmi Locations 1111111111111 1111111111111 m...

Page 410: ...phics Printer Top Base Cover Pin Name 1 Online Light 2 Key 3 NoPaperLight 4 Ready Light 5 Online Switch 6 Forms Feed 7 Line Feed 8 Ground 9 12Vdc 10 Alarm 5 12 Top Cover Control Panel Control Panel Co...

Page 411: ...onnector System Unit Connector Printer System Unit Connector Connector Pin Pin Number Number 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 32 15 31 18 38 17 33 18 19 19 21 20 23 21...

Page 412: ...Print Head and Cable Rear COMMON I Left Margin Sensor Front 5 14...

Page 413: ...IBM PC Compact Printer External Bottom Cover Paper Feed Button Access Cover Top Cover Power Switch Ready Light 5 15...

Page 414: ...IBM PC Compact Printer Internal 5 16 Cable Clamp Logic Card CIMM CNR CNK CNT Power Cord Leadscrew Drive Gear Print Mechanism...

Page 415: ...nty IBM Service Parts 6 3 How To Use This Parts Catalog 6 5 System Unit Front 6 6 System Unit Rear 6 8 System Unit Internal 6 10 Diskette Drive 6 12 IBM Color Display 6 14 IBM Personal Computer Graphi...

Page 416: ...Notes 6 2...

Page 417: ...Indiana 46135 for further information ALL EXPRESS AND IMPLIED WARRANTIES FOR THIS IBM SERVICE PART INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURAT...

Page 418: ...Notes 6 4...

Page 419: ...ts Each unit consists of a list of part names part numbers major unit codes and an indexed drawing To find a part number go to the Contents page at the beginning of the parts catalog and choose the un...

Page 420: ...System Unit Front 6 6...

Page 421: ...PART NUMBER 8286006 8285995 8286007 8286004 8285983 8285987 8285994 8286010 DESCRIPTIONS SYSTEM UNIT TOP COVER DISKETTE DRIVE FACE PLATE SYSTEM UNIT BASE CORDLESS KEYBOARD KEYBOARD CORD PARALLEL PRIN...

Page 422: ...System Unit Rear _e 6 8...

Page 423: ...02 8285991 8285992 8285993 1503441 1503442 1503443 8529228 DESCRIPTIONS POWER TRANSFORMER MODEM CABLE CONNECTOR FOR TELEVISION ATTACHABLE JOYSTICK ADAPTER CABLE FOR IBM COLOR DISPLAY ADAPTER CABLE FOR...

Page 424: ...System Unit Internal 6 10...

Page 425: ...303 302 FIGURE INDEX NUMBER 1 2 3 4 5 PART NUMBER 8654225 8654227 8654339 8654400 8654228 8654226 DESCRIPTIONS SYSTEM BOARD 64KB MEMORY AND DISPLAY EXPANSION POWER BOARD INTERNAL MODEM DISKETTE DRIVE...

Page 426: ...Diskette Drive I 6 12...

Page 427: ...INDEX NUMBER PART NUMBER 8285997 8285986 8285984 8286005 8285998 8285982 DESCRIPTIONS DISKETTE DRIVE DISKETTE DRIVE SIGNAL CABLE DISKETTE DRIVE POWER CABLE DISKETTE DRIVE MOUNTING BRACKET DISKETTE DRI...

Page 428: ...IBM Color Display 6 14...

Page 429: ...4 RESTRICTED AVAILABILITY DESCRIPTIONS DISPLAY ASSEMBLY LOGO LABEL KIT BRIGHTNESS KNOB CONTRAST KNOB POWER ON OFF KNOB POWER CORD FRONT COVER WITH TOP BOTTOM AND POWER SUPPLY BRACKETS REAR COVER P C B...

Page 430: ...IBM Color Display continued 6 16...

Page 431: ...T EXTENSION VERTICAL HOLD POT SHAFT EXTENSION PACKING MATERIAL KIT MISC HARDWARE KIT CONSISTING OF DRIVER BOARD SHIELD DRIVER BOARD SHIELD RETAINERS SIGNAL CORD STRAIN RELIEF POWER SUPPLY SCREWS CRT M...

Page 432: ...IBM Personal Computer Graphics Printer r 6 18 T...

Page 433: ...000 4 LABEL REAR 000 5 551 6 8529182 TOP COVER 600 7 8529184 CONTROL PANEL 600 8 8529198 PRINT MECHANISM ASSEMBLY 8529220 FUSE 2A FOR 120 VOLT 551 9 8529187 FUSE FILTER CARD POWER CORD 318 10 ASSEMBL...

Page 434: ...IBM Personal Computer Graphics Printer continued s 6 20...

Page 435: ...FT MARGIN ASSEMBLY 000 8529200 PRINTER MISC HARDWARE CONSISTING OF PLANE WASHERS C T P SCREWS RETAINING RINGS TYPE E CP SCREWS WITH OW CUP SCREWS SPACERS OUTSIDE TOOTHED LOCK WASHERS CP SCREWS WITH SW...

Page 436: ...IBM PC Compact Printer 6 22...

Page 437: ...7 8654403 8654404 8654405 8654406 8654408 6323447 8654410 6323446 8286095 RESTRICTED AVAILABILITY DESCRIPTIONS PRINTER ASSEMBLY PRINT MECHANISM LOGIC CARD TOP COVER BOTTOM COVER CONTROL CARD TRANSFORM...

Page 438: ...Notes 6 24...

Page 439: ...Advanced POST Error Table 3 000 8 Advanced Test Menus 2 9 Advanced Tests 2 8 Attachable Joystick Parts 6 9 PIC 3 1300 1 B Base Cover Graphics Printer Location 5 12 Parts 6 19 Removal 4 1400 30 Replac...

Page 440: ...1 Removal 4 600 1 Replacement 4 600 2 Index 2 Diskette drive Belt Location 5 7 Parts 6 13 Removal 4 600 14 Replacement 4 600 15 Diskette drive Face Plate Location 5 3 Parts 6 7 Removal 4 600 19 Replac...

Page 441: ...nter Location 5 10 Parts 6 19 Removal 4 1400 37 Replacement 4 1400 38 G Graphics Printer See IBM Personal Computer Graphics Printer Graphics Printer PIC 3 1400 1 H Heat Sink Power Transistor Graphics...

Page 442: ...1400 15 Control Panel Location 5 12 Parts 6 19 Removal 4 1400 22 Replacement 4 1400 23 Covers 4 1400 24 Index 4 Driver Circuit Card Location 5 10 Parts 6 19 Removal 4 1400 18 Replacement 4 1400 20 For...

Page 443: ...t 4 1400 63 Safety Shield Location 5 10 Parts 6 19 Removal 4 1400 65 Replacement 4 1400 66 Top Cover Location 5 12 Parts 6 19 Removal 4 1400 25 Replacement 4 1400 28 Infra Red Receiver Location 5 6 Pa...

Page 444: ...Internal Modem Modem Cable continuity check 3 830 7 Location 5 4 Parts 6 9 Index 6 o Offline Diagnostic Test Graphics Printer 3 1400 33 Options 1 4 Parallel Printer See IBM Personal Computer Graphics...

Page 445: ...1400 52 Power Transformer System Unit Location 5 3 Parts 6 9 Print Head Graphics Printer Gap Adjustment 4 1400 57 Location 5 9 5 14 Parts 6 21 Removal 4 1400 53 Replacement 4 1400 55 Print Mechanism C...

Page 446: ...er Location 5 3 Parts 6 7 Removal 4 100 3 Replacement 4 100 4 System Unit Top Cover Location 5 3 Parts 6 7 Removal 4 100 1 Replacement 4 100 2 Top Cover Compact Printer Location 5 15 Index 8 Parts 6 2...

Page 447: ...he information you supply in any way it believes appropriate without incurring any obligation whatever You may of course continue to use the information you supply Please do not use this form for tech...

Page 448: ...PERMIT NO 321 BOCA RATON FLORIDA 33432 POSTAGE WILL BE PAID BY ADDRESSEE IBM PERSONAL COMPUTER SALES SERVICE P O BOX 1328 C BOCA RATON FLORIDA 33432 0j0q p Od 0 dBlS JOU op 0SB0 d NO POSTAGE NECESSAR...

Page 449: ...he information you supply in any way it believes appropriate without incurring any obligation whatever You may of course continue to use the information you supply Please do not use this form for tech...

Page 450: ...PERMITN0 321 BOCA RATON FLORIDA 33432 POSTAGE WILL BE PAID BY ADDRESSEE IBM PERSONAL COMPUTER SALES SERVICE P O BOX 1328 C BOCA RATON FLORIDA 33432 9J3M P 0J 0 dB S lOU op 0SB0 d NO POSTAGE NECESSARY...

Page 451: ...he information you supply in any way it believes appropriate without incurring any obligation whatever You may of course continue to use the information you supply Please do not use this form for tech...

Page 452: ...PERMIT NO 321 BOCA RATON FLORIDA 33432 POSTAGE WILL BE PAID BY ADDRESSEE IBM PERSONAL COMPUTER SALES SERVICE P O BOX 1328 C BOCA RATON FLORIDA 33432 aj8L p 0 J eiders ou op eseaid NO POSTAGE NECESSARY...

Page 453: ......

Page 454: ...International Business Machines Corporation P O Box 1328 W Boca Raton Florida 33432 r N 1502263 Printed in United States of America...

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