Brother MFC-9010CN Service Manual

3-94
Confidential
8. TROUBLESHOOTING OF THE CONTROL
PANEL COVER ASSY
8.1 Nothing is Displayed on the LCD.
<User Check>
- Verify if the power switch is turned off.
Step Cause Check
Result
Remedy
1 Connection
between main PCB
and panel PCB
Are the main PCB and
panel PCB connected
properly?
No Reconnect the
connector properly.
2 Connection
between main
PCB and
low-voltage power
supply PCB ASSY
Are the main PCB and
low-voltage power
supply PCB ASSY
connected properly?
No Reconnect the
connector properly.
3 LCD Is the problem solved
after replacing the
LCD?
Yes Replace the LCD.
4 Panel PCB Is the problem solved
after replacing the panel
PCB ASSY?
Yes Replace the panel PCB
ASSY.
5 High-voltage power
supply PCB ASSY
Is the problem solved
after replacing the
high-voltage power
supply PCB ASSY?
Yes Replace the high-
voltage power supply
PCB ASSY.
6 Low-voltage Power
Supply PCB ASSY
Is the problem solved
after replacing the
low-voltage power
supply PCB ASSY?
Yes Replace the low-voltage
power supply PCB
ASSY.
7 Main PCB Is the problem solved
after replacing the main
PCB ASSY?
Yes Replace the main PCB
ASSY.

Brother MFC-9010CN Specifications

General

Brand	Brother
Model	MFC-9010CN
Category	All in One Printer
Language	English