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| Symptom/Error | FRU/Action |
|---|---|
| Blank screen | 1. Battery |
| 2. AC Adapter | |
| 3. DRAM Card | |
| 4. System Board | |
| Display problems | 1. External Display, if installed |
| (For external displays, see | 2. External Display Power Cord |
| 'External Display Self-Test' | 3. LCD Assembly |
| before replacing FRUs.) | 4. System Board |
| LCD contrast not adjustable | 1. LCD Assembly |
| 2. System Board | |
| Keyboard problems | 1. Reseat cables |
| 2. Keyboard | |
| 3. System Board | |
| Mouse problems | 1. Reseat cable |
| 2. Mouse | |
| 3. System Board | |
| Diagnostic tests hang | 1. Battery |
| 2. AC Adapter | |
| 3. DRAM Card | |
| 4. System Board | |
| Blinking cursor only | 1. Diskette Drive |
| 2. System Board | |
| Diskette drive bypassed | 1. Reseat DASD/Serial Cable |
| 2. ThinkPad MultiPort | |
| 3. Diskette Drive | |
| Cannot read diskette | 1. Diskette Drive |
| 2. Diskette Drive Cable | |
| 3. Diskette | |
| 4. System Board | |
| Hard disk drive problem | 1. Hard Disk Drive |
| 2. Hard Disk Drive Cable | |
| 3. System Board | |
| Printer problem | 1. Check Configuration |
| 2. ThinkPad MultiPort | |
| 3. Parallel Port | |
| 4. System Board | |
| Communication or plotter problem | 1. Check Configuration |
| 2. ThinkPad MultiPort | |
| 3. Serial Port | |
| 4. PCMCIA Device | |
| 5. System Board |
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.