IBM 6150 Hardware Maintenance Manual

TNL SN20-9843 (03-27-87) to 75X0152 or 75X0166Undetermined Problem PIC 9860 ........................ 3-9860-1POST Errors 5c PIC 9870 ............................. 3-9870-1Section 4. Removal and Replacement Procedures ............ 4-1About this Section ........................................ 4-3System Unit Locations ..................................... 4-4Handling Static-Sensitive Devices ............................. 4-8Removal and Replacement Procedures ........................ 4-10Section 5. Base System Unit ............................ 5-1About this Section ........................................ 5-3Base System Unit ......................................... 5-4RT PC Processor Board ................................ 5-001-1RT PC Advanced Processor Board ........................ 5-002-1RT PC Floating-Point Board ............................ 5-004-1RT PC Advanced Floating-Point Board .................... 5-005-1Section 6. System Memory Options ...................... 6-1About this Section ........................................ 6-3RT PC 1MB Memory Expansion Option ................... 6-008-1RT PC 2MB Memory Expansion Option ................... 6-010-1RT PC 4MB Memory Expansion Option ................... 6-012-1RT PC 4MB Fast Memory Expansion Option ............... 6-013-1RT PC 8MB Fast Memory Expansion Option ............... 6-016-1Section 7. Diskette Drives ............................. 7 -1About this Section ........................................ 7-3Handling a Diskette Drive .................................. 7-4mM AT High Capacity Diskette Drive ............... . . . . .. 7-100-1mM AT Dual-Sided Diskette Drive ....................... 7-102-1Section 8. Fixed-Disk Drives ........................... 8-1About this Section ........................................ 8-3Handling a Fixed-Disk Drive ................................ 8-4Fixed-Disk Drive Type R40 ............................. 8-120-1Fixed-Disk Drive Type R70 ............................. 8-128-1Fixed-Disk Drive Type E70 ............................. 8-130-1Section 9. Adapters ........•......................... 9-1xiv Service Manual