LG 32LX1R-ZE Service Manual page 16

NO VIDEO
CHECK LVDS Output
P3(PIN 21, PIN 22)
Yes
Check L2
(12V)
Yes
CHECK L1022
(24V)
Yes
REPLACE LCD MODULE
No
No
CHECK R898
(3.3V)
No
Yes
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CHECK THE PERIPHERAL
IC800
CHECK THE PERIPHERAL
IC1
No
DOWN LOAD ISP DATA
or REPLACE MAIN BOARD