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7
Troubleshooting and inspection direction
Complete Malfunction
Please take a look at the panel arrangement and the circuit drawing.
YES
NO
NO
NO
NO
YES
YES
YES
Is input AC voltage
being supplied to both Main
PCB ASM C01 terminals?
Is DC voltage on both Main
PCB ASM C12 terminals 12V?
Is DC voltage on both
C24 terminals of Main
PCB ASM 5V?
Does the Reset alarm occur
when the power is turned on?
Check LED Display soldering
• Make sure that power line is plugged in
• Check the fuse in Main PCB ASM FUSE.
• Replace Main PCB ASM
• Replace Main PCB ASM
• Replace Main PCB ASM
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Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Summary of Contents for PS-S200CW
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