Undetermined Problems - Lenovo ThinkCentre 9120 Hardware Maintenance Manual
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Also See for ThinkCentre 9120:
- Replacement manual (62 pages) ,
- User manual (76 pages) ,
- Benutzerhandbuch (74 pages)
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Undetermined problems
If this computer has a parallel ATA hard disk drive, make sure that the hard disk
drive is jumpered as a master and the optical drive is jumpered as a slave.
1. Power-off the computer.
2. Remove or disconnect the following components (if installed) one at a time.
82
Hardware Maintenance Manual
Message/Symptom
Non-system disk or disk error-type message
with a known-good diagnostic diskette.
Other display symptoms not listed above
(including blank or illegible display)
Power-on indicator or hard disk drive in-use
light not on, but computer works correctly
Printer problems
Program loads from the hard disk with a
known-good diagnostics diskette in the first
3.5-inch diskette drive
RPL computer cannot access programs from
its own hard disk.
RPL computer does not RPL from server
Serial or parallel port device failure (system
board port)
Serial or parallel port device failure (adapter
port)
Some or all keys on the keyboard do not
work
a. External devices (modem, printer, or mouse)
b. Any adapters
FRU/Action
1. Diskette Drive
2. System Board
3. Diskette Drive Cable
1. Display
2. System Board
1. Power switch/LED assembly
2. System Board
1. Printer
2. System Board
1. Run Setup and check Startup sequence.
2. Diskette Drive
3. Diskette Drive Cable
4. System Board
5. Power Supply
1. If network administrator is using
LCCM Hybrid RPL, check startup
sequence:
a. First device - network
b. Second device - hard disk
2. Hard disk drive
1. Check startup sequence
2. Check the network adapter LED status
1. External Device Self-Test OK?
2. External Device
3. Cable
4. System Board
1. External Device Self-Test OK?
2. External Device
3. Cable
4. Alternate Adapter
5. System Board
1. Keyboard
2. Keyboard Cable
3. System Board
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