ADCC1100
Appendix D: Troubleshooting
Problem | Check List | ||
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| ||
✗ No power to keyboard | ✓ Check AC outlet | ||
| ✓ Check wall transformer connections | ||
| ✓ Check cable connections to keyboard and | ||
|
| keyboard matrix interface | |
| ✓ Measure transformer output at keyboard matrix | ||
|
| interface | |
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| |
✗ No response to keystrokes (power | ✓ | Check connection of keyboard matrix interface to | |
verified) | |||
| system controller's communication port | ||
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| ||
| ✓ Check baud rates for keyboard and system | ||
|
| controller | |
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| |
✗ Keyboard responds to keystrokes on | ✓ | Verify VCR/Monitor status | |
some, but not all keys | |||
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| ||
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| |
✗ Cannot perform menu programming | ✓ | Verify smart card privileges. Administrator or | |
| |||
|
| supervisor privileges are required to perform | |
|
| programming functions. | |
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| |
✗ Display not visible | ✓ | Verify display brightness and contrast level | |
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| |
✗ Keyboard speaker not audible | ✓ | Verify speaker enabled in keyboard menu | |
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| |
✗ Cannot access main menus of CPU | ✓ | Verify that keyboard is in program mode | |
| |||
| ✓ Verify that correct monitor is selected for menu | ||
|
| programming | |
| ✓ Verify CPU program monitor output is connected | ||
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