Brother HL-2560DN Service Manual

2-70
Confidential
4.6 Troubleshooting for Control Panel Problems
4.6.1 Nothing is displayed on the LCD
4.6.2 Nothing is displayed on the LED
4.6.3 Control panel is inoperable
<User Check>
- Turn the power switch OFF and then ON again.
Step Cause Remedy
1
Rubber key attachment failure Reattach the rubber key.
2
Connection failure of the panel PCB
flat cable
Reconnect the panel PCB flat cable.
3
Connection failure of the LVPS
harness
Reconnect the LVPS harness.
4
Power cord failure Replace the power cord.
5
Rubber key failure Replace the rubber key.
6
Panel PCB failure Replace the panel PCB ASSY.
7
LCD failure Replace the LCD.
8
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
9
Main PCB failure Replace the main PCB ASSY.
<User Check>
- Turn the power switch OFF and then ON again.
Step Cause Remedy
1
Connection failure of the panel PCB
flat cable
Reconnect the panel PCB flat cable.
2
Connection failure of the LVPS
harness
Reconnect the LVPS harness.
3
Power cord failure Replace the power cord.
4
Panel PCB failure Replace the panel PCB ASSY.
5
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
6
Main PCB failure Replace the main PCB ASSY.
<User Check>
- Turn the power switch OFF and then ON again.
Step Cause Remedy
1
Rubber key attachment failure
(LCD models)
Reattach the rubber key.
2
Connection failure of the panel PCB
flat cable
Reconnect the panel PCB flat cable.
3
Connection failure of the LVPS
harness
Reconnect the LVPS harness.
4
Rubber key failure (LCD models) Replace the rubber key.
5
Panel PCB failure Replace the panel PCB ASSY.
6
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
7
Main PCB failure Replace the main PCB ASSY.

Brother HL-2560DN Specifications

General

Brand	Brother
Model	HL-2560DN
Category	Printer
Language	English