Troubleshooting Procedures; 1 ] Control Panel Related - Brother FAX-545 Service Manual

9.2.4 Troubleshooting Procedures

[ 1 ] Control panel related
Trouble
(1) LCD shows nothing.
(2) Control panel inoperative.
• Panel-main harness between the main PCB and the control
PCB
• Interfaces between the main PCB and power supply PCB
• LCD
• LCD flat cable
• Control panel PCB
• Power supply PCB
• Main PCB
• Panel-main harness between the main PCB and the control
PCB
• Interfaces between the main PCB, and power supply PCB
• Control panel PCB
• Rubber keypad
• Main PCB
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