LG CM2460 Service Manual page 35

ELECTRICAL TROUBLESHOOTING GUIDE
No 12 V
YES
Is Vcc (12 V)
supplied to D906?
YES
Q905 pin2 "HIGH"?
YES
Check or replace Q905.
No VFD
YES
Is VFD (5 V)
supplied to PN100 pin1?
YES
D301 normal?
YES
D302 normal?
YES
Q301/ Q303/ Q305/ Q306 normal?
YES
Check or replace VFD.
NO
Check or replace D906.
NO
Check P_CTRL HIGH signal from MCS.
NO
Check or replace D301.
NO
Check or replace D302.
NO
Check or replace Q301/ Q303/ Q305/ Q306.
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