Read LG 42LB1R (CHASSIS:ML051B) Service Manual online
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TROUBLESHOOTING
NO POWER
(POWER INDICATOR OFF)
(POWER INDICATOR OFF)
REPLACE POWER BOARD
CHECK POWER BOARD
CHECK CN804
VOLTAGE (P-ST_5V)
No
CHECK CRYSTAL X800
CHECK CRYCTAL
X800(19.6608MHZ)
No
Yes
CHECK IC806
CHECK IC806 VOLTAGE (5V)
No
Yes
CHECK Q1001
CHECK Power on/off
(5V)
No
Yes
Yes
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