IBM PS/2 50 Hardware Maintenance Service Download

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FRONT

PICTURE 1

March 21, 1990

This pamphlet contains procedures for isolating problems to a FRU, a

Symptom-to-FRU Index, and a parts listing for the IBM(*) Personal

System/2(*) Model 50.

This pamphlet is intended to be used with the IBM Personal System/2

Hardware Maintenance Reference manual (part number 15F2190) and the IBM

Personal System/2 Hardware Maintenance Service manual (part number

15F2200).

Part Number 15F2193

Form Number S15F-2193-00

IBM PS/2 Model 50 HMS

FRONT - 1

Summary of Contents for PS/2 50

Page 1: ...isting for the IBM Personal System 2 Model 50 This pamphlet is intended to be used with the IBM Personal System 2 Hardware Maintenance Reference manual part number 15F2190 and the IBM Personal System...

Page 2: ...changes in the product s and or the program s described in this publication at any time It is possible that this publication may contain reference to or information about IBM products machines and pro...

Page 3: ...IBM product program or service Evaluation and verification of operation in conjunction with other products programs or services except those expressly designated by IBM are the user s responsibility...

Page 4: ...CSI Devices 2 4 Non SCSI Devices 3 0 Power On Password 4 0 Undetermined Problem 5 0 Power Supply Voltages Fan 6 0 Enable and Disable Settings 7 0 Display Self Test 8 0 Display Adapter 8514 A 9 0 Keybo...

Page 5: ...m ARE ANY EXTERNAL SCSI DEVICES ATTACHED TO THE SYSTEM Yes No 002 Go to Step 005 003 DID THE POWER GOOD LIGHT ON ALL OF THE EXTERNAL DEVICES COME ON Yes No 004 Go to the external devices service pamph...

Page 6: ...rect keyboard responses go to Keyboard in topic 9 0 2 If the printer has incorrect responses go to Printer in topic 10 0 3 If the display has problems such as jittering rolling shifting or being out o...

Page 7: ...020 Follow the action described on the screen If that does not correct the problem go to Symptom to FRU Index in topic 12 0 IBM PS 2 Model 50 HMS General Checkout 1 0 3...

Page 8: ...in the module of code required to support that device The missing device is a 5 25 Inch 360KB External Diskette Drive adapter or another unrecognizable adapter The missing device is defective An adapt...

Page 9: ...nning Automatic Configuration may alter those settings Note the current configuration settings using the View Configuration option and verify that the settings are in place when service is complete Fo...

Page 10: ...ontinuing and determine which type of device SCSI or non SCSI is missing from the Installed Devices List in Advanced Diagnostics then continue with the following steps If SCSI and non SCSI devices bot...

Page 11: ...efore continuing 3 Power on the system and run Automatic Configuration If the adapter is not on the Installed Devices List in Advanced Diagnostics the adapter is defective If the adapter is on the lis...

Page 12: ...termined Problem in topic 4 0 Note If the number of diskette drives shown on the list is incorrect an error can occur during the tests Restart the system and verify that the drive information on the S...

Page 13: ...e with two pins on the side of the speaker assembly short the pins together On the type with no pins insert a meter lead into the connector protruding from under the battery and short the other end of...

Page 14: ...diskette drive Memory module kits 3 Power on the system 4 If the symptom remains repeat the above steps until you find the failing adapter or device 5 If all adapters and devices have been removed an...

Page 15: ...upply voltages PICTURE 2 Remove the power supply and place it with the connector facing up Power on the power supply and check for the voltages listed below If the voltages are not correct check the p...

Page 16: ...on menu and determine if there are any Presence Error Reporting devices listed The settings must be as follows Devices connected to the system must be set to Enabled Devices listed but not connected m...

Page 17: ...a black margin as described below some shading may occur near the edges If the screen differs replace the display If the display passes the test replace the system board or display adapter that the di...

Page 18: ...8 0 Display Adapter 8514 A PICTURE 4 IBM PS 2 Model 50 HMS Display Adapter 8514 A 8 0 1...

Page 19: ...board Power on the system and check the keyboard cable connector for the voltages shown All voltages are 5 PICTURE 5 ARE THE VOLTAGES CORRECT Yes No 002 Possible failing FRUs are 1 Fuse or keyboard ca...

Page 20: ...t run correctly the problem is in the printer Refer to the printer service manual If the printer self test runs correctly install a wrap plug on the parallel port and run the advanced diagnostic tests...

Page 21: ...of the adapters have been removed and you still have a 00011100 error replace the system board Remove the memory expansion kits from the adapter that was removed last Install the kits one at a time un...

Page 22: ...SCSI errors The following example shows which digits display the shorter POST error messages and also defines the SCSI information in an eight digit error message Shorter POST Messages 0 0 0 0 0 0 0 0...

Page 23: ...0112XX 000113XX Any Adapter System Board 000161XX Battery 000162XX Any Device Verify the enable disable settings are correct before replacing any FRUs 000163XX 000164XX Set Configuration Features 0001...

Page 24: ...l Device 0011XXXX System Board not listed above 001202XX 001206XX Dual Async Adapter A Any Serial Device 001207XX Communications Cable Dual Async Adapter A 001208XX 001209XX Dual Async Adapter A Any S...

Page 25: ...play Adapter 8514 A in topic 8 0 to determine failing module 0074XXXX not listed above Display Adapter 8514 A System Board 00850XXX 00851XXX 80286 Expanded Memory Adapter A System Board 00852XXX Memor...

Page 26: ...dapter A 0112XXXX SCSI Adapter without cache Any SCSI Device System Board 012102XX 012106XX 012108XX 012109XX 300 1200 2400 Modem A Any Serial Device 0121XXXX not listed above 300 1200 2400 Modem A Sy...

Page 27: ...ve 120MB external device go to the SCSI Adapter external devices service SCSI Cable pamphlet 0210XXXE If the failing device is an SCSI Fixed Disk Drive 320MB external device go to the SCSI Adapter ext...

Page 28: ...IBM PS 2 Model 50 HMS Symptom to FRU Index 12 0 7...

Page 29: ...13 0 System Overview PICTURE 6 IBM PS 2 Model 50 HMS System Overview 13 0 1...

Page 30: ...s that the part has a restricted availability INDENTURE the indenture is marked by a series of dots located before the parts description The indenture indicates the relationship of a part to the next...

Page 31: ...Parts List System Unit Cover 72X8501 Front Bezel Logo R 72X8502 Miscellaneous Hardware Kit AR 72X8580 Knob Assembly Fixed Disk Drive Support Structure Knob Washer IBM PS 2 Model 50 HMS Example of a P...

Page 32: ...R 72X8509 Battery Ordering Label Power Supply Warning Label Snap Kit AR 72X8526 Snap Grommet Snap Plunger Miscellaneous Parts Kit System 72X8525 Base Foot Captive Screw 4 mm Screw Miscellaneous Parts...

Page 33: ...ter 92X1459 80286 Memory Expansion Adapter 72X8532 Memory Module for 72X8532 61X8906 0 8MB Expanded Memory Adapter A 1497253 Memory Module for 1497253 1497256 2 8MB 80286 Memory Expansion Option 15F82...

Page 34: ...Venezuela Power Cord System Unit for 8529341 Hong Kong Singapore U K Power Cord System Unit for 8529281 France Germany Spain Power Cord System Unit for 8529282 Italy Power Cord System Unit for 852928...

Page 35: ...Printed in the United States of America IBM PS 2 Model 50 HMS Parts 15 0 4...

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