IBM Aptiva 2156 Hardware Maintenance Service page 4

Undetermined Problems ........................................................................2-40
Diagnostic Aids............................................................................................3-1
Introduction ....................................................................................................3-2
Power-On Self Test........................................................................................3-2
Diagnostics Tools...........................................................................................3-3
Using Diagnostics Program from Recovery CD .......................................3-3
Diagnostics Program Features.................................................................3-4
Repairing Information................................................................................. 4-1
Removals and Replacements ........................................................................4-2
Identifying the Parts of the System Unit ...................................................4-3
Top Cover.................................................................................................4-5
Front Bezel ...............................................................................................4-6
Adapter Cards ..........................................................................................4-7
Diskette Drive ...........................................................................................4-9
CD-ROM Drive .......................................................................................4-10
Hard Disk Drive ......................................................................................4-11
Power Supply .........................................................................................4-13
System Board .........................................................................................4-14
Memory (DIMM)......................................................................................4-15
Parts/Test Point Locations..........................................................................5-1
Introduction ....................................................................................................5-2
Machine Type 2156 System Board Layout....................................................5-3
2156 System Board Jumper Settings.......................................................5-4
2156 Processor Type Jumper Settings ....................................................5-5
2156 System Board Connectors and Functions.......................................5-6
Power Supply Cable Connector Specifications .............................................5-7
Main Output Pin Assignment....................................................................5-8
Factory-Installed Modem Card Layout.........................................................5-10
Factory-Installed Modem Card Connector Functions.............................5-10
3.5-In. Hard Disk Drive Jumper Locations ...................................................5-11
3.5-In. Hard Disk Drive Jumper Settings................................................5-12
CD-ROM Drive.............................................................................................5-13
CD-ROM Drive Rear Panel Connectors and Features ..........................5-14
CD-ROM Drive Jumper Settings ............................................................5-14
DIMM Configurations ...................................................................................5-15
System Board Connector Pin Signals..........................................................5-15
Monitor Port Signals ...............................................................................5-15
Serial Port Signals..................................................................................5-15
Parallel Port Signals ...............................................................................5-16
Mouse Port Signals ................................................................................5-16
Keyboard Port Signals ...........................................................................5-16
Diskette Drive Cable Connector Signals ................................................5-17
IDE Cable Connector Signals ................................................................5-18
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