■The control panel does not work.
<User Check>
- Check whether the function lock is not set.
Step | Possible cause | Check | Result | Remedy |
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| Key sticking | Is there a key on the |
| Clean up the panel cover, |
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| control panel stuck? | Yes | or remove the burrs from |
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| panel cover and panel | ||
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| keys. |
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| Connection | Are the main PCB and |
| Reconnect the connector |
2 | between main | control panel PCB | No | properly. |
PCB and control | connected properly? |
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| panel PCB |
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| Harness | Is the harness |
| Replace the harness with a |
3 | between main | damaged? | Yes | normal one. |
PCB and control |
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| panel PCB |
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| Rubber Key | Is the problem solved |
| Replace the rubber Key. |
4 |
| after replacing the | Yes |
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| rubber key? |
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| Control panel | Is the problem solved |
| Replace the control panel |
5 | PCB | after replacing the | Yes | PCB. |
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| control panel PCB? |
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| Main PCB | Is the problem solved |
| Replace the main PCB |
6 |
| after replacing the main | Yes | ASSY. |
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| PCB ASSY? |
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Confidential |