| Symptom/Error |
FRU/Action |
| Program-load error during |
1. Network Adapter |
| remote IPL from the file |
|
| service. Displayed on upper |
|
| or lower half of the LCD. |
|
| External display screen |
1. External Display |
| changes colors. |
2. Docking Frame |
| One or more keys do not |
1. External Keyboard |
| work on the external keyboard |
2. Keyboard Cable |
| but the 3550 Expansion Unit |
3. System Board of 3550 Expansion Unit |
| is otherwise functional. |
|
| (See |
|
| 'Ext. Keyboard/Aux. Input Device Checkout'.) |
|
| Power-good light does |
1. System Board of 3550 Expansion Unit |
| not turn on and fan runs. |
2. Power Supply |
| Power-good light does |
1. Power Supply |
| not turn on, fan does not |
2. System Board of 3550 Expansion Unit |
| run, and 3550 Expansion |
|
| Unit is not functional. |
|
| (See 'Undetermined Problem'.) |
|
| Intermittent Failures. |
1. Power Supply |
| (See 'Undetermined Problem'.) |
2. System Board of 3550 Expansion Unit |
| |
3. Any Device or Adapter |
| 3550 Expansion Unit |
1. System Board of 3550 Expansion Unit |
| cannot be powered-off. |
2. Power Supply |
| LED for hard disk drive |
1. SCSI Hard Disk Drive |
| stays on. |
2. System Board of 3550 Expansion Unit |
| LED for hard disk drive |
1. System Board of 3550 Expansion Unit |
| is not working, but the |
|
| 3550 Expansion Unit is |
|
| completely functional. |
|