- 18 -
3. No PIP
<AV1, 2, 3>
<RF>
<SCART>
NO
Check
AV Jack1
Check TU102
YES
YES
Waveform of Digital Board
IC001 #189, 182, 188?
Waveform of MAIN1
Q101(E)?
Check Digital Board
IC510 #2
Check Q510
Check Digital Board
IC001
Check around IC510
Check Scart
Jack
SCART201
Waveform of Digital
Board IC510 #51,
52, 53, 46?
YES
YES
YES
NO
NO
NO
NO
NO
Check around IC001
NO
Waveform of Digital Board
IC001 #195?
Waveform of Digital Board
IC510 #19~22, 24~28?
YES
Waveform of Digital Board
IC001 #165~167?
4. No power
Check MAIN Board of Power Line
NO
NO
NO
NO
NO
Check ST_3.3 of IC001 #45, 75...
ST_1.8V of IC001 #124, 169...
Replace X001
Replace Q009, Q010
YES
YES
YES
HIGH
Check IC001 #79,89 (OSC)
Check IC001 #83, 84(SCL, SDA)
Check Abnormal Circuit
Check IC1001 #161(ABN)
Check Digital P503, P504 connector
Check IC001 #89(IR), #162(Key in)
Check MAIN Board of Power Line
NO
Check ST_6.5V of C824(+)
YES
Copyright©2008 LG Electronics.Inc. All right reserved.
Only for training and service purposes.
LGE Internal Use Only
