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Symptom/Error | FRU/Action |
---|---|
A no beep and a blank or unreadable | 1. System Board |
display during POST. | 2. Voltage Converter |
(See 'Power Systems Checkout' | 3. Communications Cartridge |
before replacing any FRUs.) | 4. Hard Disk Drive |
5. Display Control Card | |
6. Any options | |
7. Power source when failing | |
A no beep with a blinking cursor. | 1. System Board |
2. Display Control Card | |
3. Communications Cartridge | |
A no beep with a normal | 1. Speaker |
display during POST. | 2. Indicator Card |
3. System Board | |
4. Keyboard Control Card | |
A no beep and the computer | 1. System Board |
hangs after displaying memory count. | 2. Communications Cartridge |
3. Hard Disk Drive | |
LCD too dark, unable to adjust | 1. LCD Panel |
contrast or brightness. | 2. Regulator |
(See | 3. Voltage Converter |
'CL57LCD FRU Replacement Notice' | |
before replacing any FRUs.) | |
LCD unreadable or illegible. | 1. LCD Panel |
(See | 2. Display Control Card |
'CL57 LCD FRU Replacement Notice' | 3. LCD Cable |
before replacing any FRUs.) | |
Missing or discolored dots | 1. See 'CL57 LCD FRU Replacement Notice' |
on the LCD panel. | |
Unable to turn the LCD on and off. | 1. Regulator |
2. Voltage Converter | |
3. LCD Cable | |
Blank screen, or extra horizontal | 1. LCD Panel |
or vertical line(s) displayed on | 2. Display Control Card |
upper or lower half of the LCD. | 3. LCD Cable |
(See 'CL57 LCD FRU Replacement Notice' | |
before replacing any FRUs.) | |
Four battery indicators are blinking. | 1. Voltage Converter |
Battery ID 1 | 2. System Board |
Battery Status 1 | |
Battery ID 2 | |
Battery Status 2 | |
System status indicator is | 1. Related Device |
incorrectly blinking or stays on. | 2. System Board |
3. Indicator Card | |
System status indicator stays off, | 1. Indicator Card |
but the POST ends without an error | 2. System Board |
3. Related Device | |
Reference Diskette does not work. | 1. Diskette Drive |
(Try another Reference Diskette | 2. System Board |
or any bootable diskette before | 3. Diskette Drive Cable |
replacing FRUs. Ensure all | 4. Reference Diskette |
correct level drivers are loaded.) | |
Keyboard does not work. | 1. Keyboard Control Card |
2. Keyboard Cable | |
3. Numeric Keypad if used | |
4. System Board | |
One or more keys do not work. | 1. Keyboard |
(See | 2. Numeric Keypad |
'Ext. Keyboard/Aux. Input Device Checkout' | 3. Keyboard Control Card |
before replacing any FRUs.) | |
External display problems. | 1. External Display |
(See | 2. Display Control Card |
'External Display Self-Test' | |
before replacing any FRUs.) | |
Incorrect memory size during POST. | 1. System Board |
(See 'Memory Checkout' | 2. Memory Module |
before replacing any FRUs.) | 3. IC DRAM Card |
Computer hang or Intermittent hang. | 1. System Board |
(See 'Undetermined Problem' | 2. Hard Disk Drive Cable |
before replacing any FRUs.) | 3. Hard Disk Drive |
4. Replace the last device being tested | |
5. Display Control Card | |
6. Memory Module | |
7. IC DRAM Card | |
8. Voltage Converter | |
The computer goes into suspend | 1. System Board |
mode after the POST. | 2. Voltage Converter |
3. Lid Switch | |
4. Keyboard Control Card | |
The computer does not suspend | 1. System Board |
or resume. | 2. Voltage Converter |
3. Lid Switch | |
4. Keyboard Control Card | |
The computer does not power off. | 1. Voltage Converter |
2. System Board | |
1. Indicator Card | |
Real-time clock inaccurate. | 1. Backup Battery |
(See 'Testing the Backup Battery' | 2. System Board |
before replacing any FRUs.) | |
Printer problems. | 1. See 'Printer Checkout' |
Serial or parallel port device problems. | 1. Device |
2. Cable | |
3. System Board | |
4. Serial Adapter (if attached) | |
5. I/O Panel Assembly | |
Internal Data/Fax modem does | 1. See 'Fax/Modem Checkout' |
not communicate with a remote | |
modem or a fax |
Please see the LEGAL - Trademark notice.
Feel free - send a for any BUG on this page found - Thank you.