Maintenance and Troubleshooting 4-9
Table Section 4-4 Problems and Solutions
Problem
Symptom
Solution
Diskette drive does
not work
Lamp on drive panel does not
light when diskette is loaded.
1
. Check power and signal cable
connections between diskette drive,
system board, and power supply.
2
. Check diskette drive jumpers (see
Section 3).
3
. Check power supply and replace
diskette cable.
4
. Replace diskette drive.
5
. Replace system board.
Hard disk
malfunction
Hard disk drive lamp does not
light but hard disk drive can be
accessed.
1
. Check cable connections between
lamp and system board.
Hard disk controller failure
message displayed.
1
. Check that the IDE port and hard disk
drives are enabled in setup.
Cannot access hard disk.
1
. Check signal and power connections
between hard disk, PCB, and power
supply.
2
. Check drive jumper settings (refer to
Section 3).
3
. Check power supply and replace hard
disk cable.
4
. Replace hard disk.
5
. Replace system board (or hard disk
controller PCB if system board is not
used).
Memory malfunction Total memory is not recognized.
1
. Reseat SIMMs.
2
. Systematically swap SIMMs.
3
. Check to see if the SIMM configuration
is valid (see Section 3).
4
. Replace SIMMs.
5
. Replace system board.
Sound board
malfunction
No output from both the 8-bit
and 16-bit digitized sounds.
1.
Check interrupts. Refer to Appendix D
for interrupt settings.
2.
Check DMA channels. Refer to
Appendix D for DMA channel settings.
Summary of Contents for PowerMate VP75
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Page 173: ...Minitower Repair 6 25 ...