LG HT904TA Service Manual page 12

2. Front circuit (2/2)

Check if the
power part of the
front is ok?
Check if
R345~R350, R149 are
ok?
Refer to MICOM circuit.
2
Check if the
power part of the front
is ok?
Check if the remote
control waveform of CN301 (or CN304)
pin11 is ok?
Check if RC01
voltage is ok(5V)?
Resolder or Replace RC0.
YES
YES
YES
YES
YES
NO
Refer to power(SMPS).
NO
Replace R345~R350, R149.
NO
Refer to power(SMPS).
NO
Refer to MICOM circuit.
NO
2-
Check RM circuit