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| Symptom/Error | FRU/Action |
|---|---|
| Continuous beep. | 1. System Board |
| Repeating short beeps. | 1. Keyboard |
| (See | 2. Keyboard Control Card |
| 'Ext. Keyboard/Aux. Input Device Checkout' | 3. System Board |
| before replacing any FRUs.) | |
| One long and one short beep. | 1. System Board |
| One long and two short beeps. | 1. Display Control Card |
| 2. System Board | |
| One short beep and a blank, | 1. LCD Panel |
| unreadable, or flashing display | 2. Display Control Card |
| with no external display attached. | 3. System Board |
| (See | 4. LCD Cable |
| 'CL57 LCD FRU Replacement Notice' | |
| before replacing any FRUs.) | |
| One short beep and Diskette Prompt | 1. Diskette Drive |
| or a program load from the hard disk | 2. System Board |
| or unable to read diskette. | 3. Diskette Drive Cable |
| Two short beeps and a blank display. | 1. System Board |
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.