Lenovo NetVista Hardware Maintenance Manual (HMM) for NetVista 6832 and 6833 s - Page 74

CD/DVD-ROM Drive, Error Symptoms, Action/FRU

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Error Symptoms Action/FRU Hard disk drive LED fails to light, but system operates normally. 1. With the system power on, measure the voltage of hard disk LED connector CN6. The reading should be: CN6 HDD Idle / Active pin-1 pin-1 +5Vdc/ -pin-2 pin-2 +5Vdc/ 0Vdc pin-3 pin-3 +5Vdc/ 0Vdc pin-4 pin-4 +5Vdc/ -- 2. See "System Board Jumpers and Connectors" on page 113. 3. Hard drive LED cable. CD/DVD-ROM Drive NOTE: Ensure CD/DVD-ROM drive is configured correctly in Configuration/Setup Utility, and cables/jumpers are set correctly and its laser beam is clean before diagnosing any CD/DVDROM drive problems. CD/DVD-ROM drive LED flashes for more than 30 seconds before LED shutting off. Software asks to reinstall disc. Software displays a reading CD/DVD error. 1. CD/DVD may have dirt or foreign material on it. Check with a known good disc. 2. CD/DVD is not inserted properly. 3. CD/DVD is damaged. CD/DVD-ROM drive LED doesn't come on but works normally. 1. CD/DVD-ROM drive 42 IBM Desktop System HMM

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42
IBM Desktop System HMM
Hard disk drive LED fails to
light, but system operates
normally.
1.
With the system power
on, measure the
voltage of hard disk
LED connector CN6.
The reading should be:
CN6
HDD
Idle /
Active
pin-1 pin-1
+5Vdc/
--
pin-2 pin-2
+5Vdc/
0Vdc
pin-3 pin-3
+5Vdc/
0Vdc
pin-4 pin-4
+5Vdc/ --
2.
See “System Board
Jumpers and
Connectors” on page
113.
3.
Hard drive LED cable.
CD/DVD-ROM Drive
NOTE:
Ensure CD/DVD-ROM drive is configured
correctly in Configuration/Setup Utility, and
cables/jumpers are set correctly and its laser
beam is clean before diagnosing any CD/DVD-
ROM drive problems.
CD/DVD-ROM drive LED
flashes for more than 30
seconds before LED
shutting off.
Software asks to reinstall
disc.
Software displays a reading
CD/DVD error.
1.
CD/DVD may have dirt
or foreign material on it.
Check with a known
good disc.
2.
CD/DVD is not inserted
properly.
3.
CD/DVD is damaged.
CD/DVD-ROM drive LED
doesn't come on but works
normally.
1.
CD/DVD-ROM drive
Error Symptoms
Action/FRU