IBM Aptiva 2159, Manual

Page: 67 / 214

Table 2-1 (Page 6 of 25). POST and Diagnostics Index for
Symptoms, Messages, Error Codes, or Beeps
Symptoms, Messages, Error
Codes, or Beeps Action/FRU
Hard disk or power-on indicator
LED does not light but machine
functions normally otherwise. Check J26 voltages, with power-on:
J26 Hard Disk
Pin Normal Running
1 +5 V dc 0 V dc
2 +5 V dc +5 V dc
3 +5 V dc +5 V dc
4 0 V dc 0 V dc
Pins 1, 2 = Hard Disk Drive
Pins 3, 4 = Power-on LED
Check voltages at Access Station card,
see “Access Station” on page 5-14.
LED connection/cable assembly
Access Station host card
Access Station client card
Access Station cable
System board
Hard Drives Failed.
Hard Disk Drive test error. Hard Disk Drive
System Board
Home Automation failures “Home Automation” on page 4-19
Incorrect DOS version. Ensure you are using DOS version 3.0 or
higher.
INT Mask Register Failed.
INT Mask Register error. Processor
System Board
Insert a CD message icon
appears when a known good
Diagnostics CD is inserted in the
CD-ROM drive.
Ensure the hard disk drive and CD-ROM
drive are not disabled in the startup
sequence in the Setup Utility.
Hard disk drive preloaded software
CD-ROM drive connection/cable
CD-ROM drive
Access Station host card
Access Station client card
Access Station cable
System board
Intensity or color varies from left
to right of characters and color
bars. “Monitor” on page 2-67.
System board
Check Procedures
2-15