Troubleshooting For Control Panel Problems; Nothing Is Displayed On The Lcd; Control Panel Is Inoperable - Brother ADS-3600W Service Manual

4.5

Troubleshooting for Control Panel Problems

4.5.1 Nothing is displayed on the LCD

<User Check>
- Check that the AC power cord or DC plug is connected correctly.
Step
Connection failure of the panel PCB
1
harness
Connection failure of the LCD flat
2
cable
3 AC power cord failure
4 AC adapter failure
5 Panel PCB failure
6 Key PCB failure
7 Main PCB failure

4.5.2 Control panel is inoperable

<User Check>
- Check that the function lock is not set.
Step
Connection failure of the key PCB
1
harness
Connection failure of the panel PCB
2
harness
Connection failure of the touch
3
panel harness
4 Panel PCB failure
5 Touch panel failure
6 Key PCB failure
7 Main PCB failure
Cause
Reconnect the panel PCB harness.
Reconnect the LCD flat cable.
Replace the AC power cord.
Replace the AC adapter.
Replace the panel PCB ASSY.
Replace the panel unit.
Replace the main PCB ASSY.
Cause
Reconnect the key PCB harness.
Reconnect the panel PCB harness.
Reconnect the touch panel harness.
Replace the panel PCB ASSY.
Replace the touch panel ASSY.
Replace the panel unit.
Replace the main PCB ASSY.
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Remedy
Remedy
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