LG FE-6100CVE Service Manual page 10

2. AUDIO µ. COM CIRCUIT
POWER ON
Does CD/DVD
appear at FLT?
Does LOADING
appear at FLD?
Does no Dise or
Time appear at FLD?
Check if DVD an Audio
Micom Interface is OK.
Check power.
Check DVD Module.
Check SMPS.
Does it appear
DVD Error at
FLD?
Check
Connector(PN903)if
is normally.
Check power part
of Main B/D.
Check oscillator
of x101.
Check if PN200
PIN is High.
5
Check if IC101
PIN is High.
11
Check i f IC101 PIN
17 46 72 90
, , , i s hi g h
(5V).
Check if IC101
PIN
26
is High .
Replace IC101.
- 2-2 -
Does Video1/2, TV
AUDIO, FM 87.5 appear
at FLD?
Reconnet it.
Refer to SMPS
Refer to oscillator
Circuit.
Check DVD Reset Waveform.
Check IC101 Reset Wavefrom.
Check 3.3V line.
Check Power dection Circuit..
OK.