10. TROUBLESHOOTING OF FAX FUNCTIONS
■FAX can't send it.
<User Check>
- Verify that the telephone cord is securely inserted into the right socket.
Step | Possible cause | Check | Result | Remedy |
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| Dialing mode | Does a dialing signal |
| Check the dialing mode |
| Setting | (PB or DP) come out |
| setting at customer's |
1 |
| normally in each mode? | Yes | again. |
| (Use telephone line | Check the telephone line | ||
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| emulator.) |
| cord between machine and |
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| socket. |
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| Connection | Are the main PCB and |
| Reconnect the connector |
2 | between main | NCU PCB connected | No | properly. |
PCB and NCU | properly? |
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| PCB |
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| Harness | Is the harness |
| Replace the harness with a |
3 | between main | damaged? | Yes | normal one. |
PCB and NCU |
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| PCB |
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| Connection | Are the main PCB and |
| Reconnect the connector |
4 | 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 |
5 | between main | damaged? | Yes | normal one. |
PCB and control |
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| panel PCB |
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6 | Contact of rubber | Does the rubber key | No | Replace the rubber Key. |
key | work correctly? |
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| NCU PCB | Is the problem solved |
| Replace the NCU PCB |
7 |
| after replacing the NCU | Yes | ASSY. |
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| PCB ASSY? |
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| Control panel | Is the problem solved |
| Replace the control panel |
8 | 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 |
9 |
| after replacing the main | Yes | ASSY. |
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| PCB ASSY? |
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Confidential |