Machine Is Not Turned On - Brother DCP-7080 Service Manual

4.14.3 Machine is not turned ON

<User Check>
- Check that the power cord is inserted into the terminal correctly.
- Turn the power off and on.
Step
Rubber key attachment failure
1
(For models without touch panel)
Connection failure of panel harness Reconnect the panel harness.
2
Connection failure of key PCB flat
3
cable (For models with touch panel)
Connection failure of LCD flat cable Reconnect the LCD flat cable.
4
Connection failure of LVPS harness Reconnect the LVPS harness.
5
Power cord failure
6
Panel PCB failure
7
LCD failure
8
Low-voltage power supply PCB
9
failure
Main PCB failure
10
Cause
Reattach the rubber key.
Reconnect the key PCB flat cable.
Replace the power cord.
Replace the panel PCB.
Replace the LCD.
Replace the low-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
2-98
Remedy
Confidential