Service Manuals, User Guides, Schematic Diagrams or docs for : LG TV CT-25Q26ET 077A_TRO
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Trouble Shooting
3V
Q05, IC851, IC802(3), IC856. pin 32 of IC01.
3.3V 0V
ICP(V)01.
IC01, FR403, FR413, IC852(3), IC854(5), FR406,
D405, D406, IC301, D408, D858, Q856.
ICP(V)01.
ICP(V)01.
33V
F854, D861, R405.
(OPTION)
D850, L853, T402. Q401, Q402, T401.
C804
pin4 F(P)801, SW(P)801, T1111,
T801, R802, DB801.
18V
T802, R809, D802.
ICP(V)01.
37~39 ICP(V)01. 12
ICP(V)01. CPT PCB ASSY. ICP(V)01, Q124
FR403, FR413, D405, D406. ICP(V)01.
ICP(V)01. IC301, D301.
at pin 44 of ICP(V)01.
3V
P502A. at pin 12 of IC01.
QP(QV)02, ICP(V)01. at pin 41~43 of ICP(V)01.
ICP(V)01.
'
P901.
ICP(V)01, QP(V)04~06. Q2902~2910, VM COIL.
ICP(V)01.
ICP(V)01. IC302.
FR402, D404, IC302. R408.
Q302, Q303. D401, D402, C405.
pin 10 of IC601(SOUND AMP).
ICN01.
F851, FB853, D850. ICN01.
* AM Sound(for FRENCH)
ICN01. 1, 3 ICN02.
8 IC601.
ICN01.
0V 5V P605(6)A, ICN02.
Check the Waveform
at pin 44 of ICN01.
IC601, QN01~02, P605(6)A. Q601, IC01.
NORMAL NO
Check/Replace Check the voltage
XN01, ICN01. at pin 3 of IC101.
XN01, ICN01.
Z102, Z103, IC101.
Z102, IC101.
' NO PIP
9
Is there video signal at
No pin 13 of ICP101?
F854, D861, R104, ZD101. 7 Check/Replace ICP101. Yes
Check I2C Bus.
Is there video signal at Yes
No pin 28 of ICP102?
Check CP131.
12 L102
Abnormal Check pins15~18
of ICP102.
Check/Replace ICP102.
Check I2C BUS.
ICP(V)01
Normal
Abnormal Check pins45~48
of ICP01.
15 Normal
Check RP108, 109, 110, 112, 114,
IC01 ICP(V)01, Q124. CP17~19.
Check/Replace
ICP01.
Check/Replace IC01, IC02.
Check I2C BUS.
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