Troubleshooting For Control Panel Problems; Nothing Is Displayed On The Lcd; Nothing Is Displayed On The Led; Unable To Perform Panel Operation - Brother HL-3160CDW Service Manual

4.6

Troubleshooting for Control Panel Problems

4.6.1

Nothing is displayed on the LCD

<User Check>
• Turn the power switch OFF and then back ON again.
• Unplug the AC cord and then plug it again.
Step
1
2
3
4
5
6
7
8
9
* Panel flat cable (Touch panel models) / Panel harness (Non-touch panel models)
4.6.2

Nothing is displayed on the LED

<User Check>
• Turn the power switch OFF and then back ON again.
Step
1
2
3
* Panel flat cable (Touch panel models) / Panel harness (Non-touch panel models)
4.6.3

Unable to perform panel operation

<User Check>
• Turn the power switch OFF and then back ON again.
Step
1
2
3
4
5
6
* Panel flat cable (Touch panel models) / Panel harness (Non-touch panel models)
Cause
Connection failure of the
panel flat cable/harness*
Connection failure of the low-
voltage power supply harness
Connection failure of the high-
voltage power supply flat cable
AC cord failure
Panel flat cable/harness* failure
Panel PCB failure
LCD failure
Low-voltage power supply
PCB failure
Main PCB failure
Cause
Connection failure of the
panel flat cable/harness*
Panel PCB failure
Main PCB failure
Cause
Connection failure of the low-
voltage power supply harness
Panel flat cable/harness* failure
Panel PCB failure
Touch panel ASSY failure
Low-voltage power supply
PCB failure
Main PCB failure
Reconnect the panel flat cable/harness*.
Reconnect the low-voltage power supply
harness.
Reconnect the high-voltage power supply flat
cable.
Replace the AC cord.
Replace the panel flat cable/harness*.
Replace the panel PCB.
Replace the LCD.
Replace the low-voltage power supply PCB.
Replace the main PCB.
Reconnect the panel flat cable/harness*.
Replace the panel PCB.
Replace the main PCB.
Reconnect the low-voltage power supply
harness.
Replace the panel flat cable/harness*.
Replace the panel PCB.
Replace the touch panel ASSY.
Replace the low-voltage power supply PCB.
Replace the main PCB.
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Remedy
Remedy
Remedy
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