LG PS-S200CW Service Manual page 19

7
Troubleshooting and inspection direction
Please take a look at the panel arrangement and the circuit drawing.
Complete Malfunction
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
LGE Internal Use Only
YES
YES
YES
YES
-19-
NO
• Make sure that power line is plugged in
• Check the fuse in Main PCB ASM FUSE.
NO
• Replace Main PCB ASM
NO
• Replace Main PCB ASM
NO
• Replace Main PCB ASM
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