Lenovo ThinkCentre A62 Hardware Maintenance Manual - Page 70

External Device Self-Test OK?, Message/Symptom

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Message/Symptom FRU/Action "Insert a Diskette" icon appears with a known-good diagnostics diskette in the first 3.5-inch diskette drive. 1. System Board 2. Diskette Drive Cable 3. Network Adapter Intensity or color varies from left to right of characters and color bars 1. Display 2. Video adapter (if present) 3. System Board No power or fan not running 1. See "Hard disk drive boot error" on page 43. Non-system disk or disk error-type message with a known-good diagnostic diskette. 1. Diskette Drive 2. System Board 3. Diskette Drive Cable Other display symptoms not listed above (including blank 1. Display or illegible display) 2. System Board Power-on indicator or hard disk drive in-use light not on, 1. Power switch/LED assembly but computer works correctly 2. System Board Printer problems 1. Printer 2. System Board Program loads from the hard disk with a known-good diagnostics diskette in the first 3.5-inch diskette drive 1. Run Setup and check Startup sequence. 2. Diskette Drive 3. Diskette Drive Cable 4. System Board 5. Power Supply RPL computer cannot access programs from its own hard 1. If network administrator is using LCCM Hybrid disk. RPL, check startup sequence: a. First device - network b. Second device - hard disk 2. Hard disk drive RPL computer does not RPL from server 1. Check startup sequence 2. Check the network adapter LED status Serial or parallel port device failure (system board port) 1. External Device Self-Test OK? 2. External Device 3. Cable 4. System Board Serial or parallel port device failure (adapter port) 1. External Device Self-Test OK? 2. External Device 3. Cable 4. Alternate Adapter 5. System Board Some or all keys on the keyboard do not work 1. Keyboard 2. Keyboard Cable 3. System Board 64 ThinkCentre Hardware Maintenance Manual

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Message/Symptom
FRU/Action
"Insert a Diskette" icon appears with a known-good
diagnostics diskette in the first 3.5-inch diskette drive.
1.
System Board
2.
Diskette Drive Cable
3.
Network Adapter
Intensity or color varies from left to right of characters
and color bars
1.
Display
2.
Video adapter (if present)
3.
System Board
No power or fan not running
1.
See "Hard disk drive boot error" on page 43.
Non-system disk or disk error-type message with a
known-good diagnostic diskette.
1.
Diskette Drive
2.
System Board
3.
Diskette Drive Cable
Other display symptoms not listed above (including blank
or illegible display)
1.
Display
2.
System Board
Power-on indicator or hard disk drive in-use light not on,
but computer works correctly
1.
Power switch/LED assembly
2.
System Board
Printer problems
1.
Printer
2.
System Board
Program loads from the hard disk with a known-good
diagnostics diskette in the first 3.5-inch diskette drive
1.
Run Setup
and check Startup sequence.
2.
Diskette Drive
3.
Diskette Drive Cable
4.
System Board
5.
Power Supply
RPL computer cannot access programs from its own hard
disk.
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
RPL computer does not RPL from server
1.
Check startup sequence
2.
Check the network adapter LED status
Serial or parallel port device failure (system board port)
1.
External Device Self-Test OK?
2.
External Device
3.
Cable
4.
System Board
Serial or parallel port device failure (adapter port)
1.
External Device Self-Test OK?
2.
External Device
3.
Cable
4.
Alternate Adapter
5.
System Board
Some or all keys on the keyboard do not work
1.
Keyboard
2.
Keyboard Cable
3.
System Board
64
ThinkCentre Hardware Maintenance Manual