LG 50PT490-ZD (CHASSIS:PD11K) Service Manual ▷ View online
< SIF waveform – sample >
- Defend on the input signal.
- Defend on the input signal.
Making
Revision
PDP TV
Input
Block
Analog TV Audio Problem
Check video output
Follow procedure All source audio
trouble shooting
Y
Follow procedure analog TV
video trouble shooting
N
Replace MSTAR IC (IC400)
Check #3 on TU300 for 5V
Check IC605 output Voltage
N
Y
Check SIF signal C301
Replace TU300
N
Y
Check SIF signal (C301)
Check SIF line
N
Y
Y
Repair Process-Reference data
A2-3
Check Connector and cables
JK210(Component)
JK100, JK101 (SCART)
JK208 (RGB)
JK207 (Side AV)
Replace connector or
cable if found damaged
Check signal
JK210 (Component) : R261, R262
JK100, JK101 (SCART) : R128, R131, R193,
R194
JK208 (RGB) : R215, R216
JK207 (Side AV) : R1201, R1202
Replace the Resistor
Check IC400 signal
JK210 (Component) : C441, C442
JK100, JK101 (SCART) : C435, C436, C437,
C438
JK208 (RGB) : C443, C444
JK207 (Side AV) : C439, C440
Replace the Capacitor
Follow procedure
All source audio trouble shooting
Making
Revision
PDP TV
Input
Block
Component / AV/RGB Audio Problem
Y
Y
Y
N
N
N
Repair Process-Reference data
A2-4
< SPDIF waveform – sample >
- Defend on the input signal.
- Defend on the input signal.
Making
Revision
PDP TV
Input
Block
Optical Audio Problem
N
Check Signal (JK204 #3)
Check SPDIF signal (R296)
Replace MSTAR(IC400)
Check 5V #2 on JK204
Y
N
Check P601 Output
(L604,L605)
Y
A2-5
Repair Process-Reference data
Making
Revision
PDP TV
Symptom
A. Picture Problem
Check Va, Vs on Power Board
Vs Adjustment
(VR901)
Va Adjustment
(VR502)
Check Va
▶ Check Va & Adjust Va Voltage
(Refer to the Module label for Va specification)
▶ Check Vs & Adjust Vs Voltage
(Refer to the Module label for Vs specification)
Repair Process-Reference data
A3
A3
Control Board
Power Board
Y-Sus Board
Z-Sus Board
PDP Module Label
Main Board
Check Vs
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