LG LH-T3520X Service Manual page 12

3. Front circuit (2/2)
1
Check if the
power part of the
front is ok?
Check if
R345 ~ R350
ok?
Refer to MICOM circuit.
2
Check if the power
part of the front is ok?
Check if the remote
control waveform of PN301
pin5 is ok?
Check if RC2
voltage is ok(5 V)?
Resolder or Replace RC2.
YES
YES
YES
YES
YES
NO
Refer to power(SMPS).
NO
Replace R345 ~ R350.
NO
Refer to power(SMPS).
NO
Refer to MICOM circuit.
NO
2-3
Check RM circuit