LG 50PS2000-ZB (CHASSIS:PD92A) Service Manual ▷ View online
Check Connector and cables
JK701 (Component)
JK600.JK601 (SCART, Rear AV)
JK702 (RGB)
JK700 (Side AV)
Replace connector or
cable if found damaged
Check signal
R736 / R737 (Component1)
R738 / R739 (RGB)
R617 / R609, R654, / R652 (SCART, Rear AV)
R776 / R780 (AV Side)
Replace the Resistor
Check IC100 signal
C36,C37,C38,C39,C40,
C41,C42,C43,C44,C45
Replace Capacitor
Follow procedure
All source audio trouble shooting
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
Component / AV/RGB Audio Problem
Y
Y
Y
N
N
N
11/14
< SPDIF waveform – sample >
- Defend on the input signal.
- Defend on the input signal.
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
Optical Audio Problem
N
Check Signal (JK1000 #3)
Check SPDIF signal (R137)
Replace Mstar IC100
Replace JK1000
Y
Y
12/14
• Exception
- USB power could be disabled by inrushing current
- In this case, remove the device and try to reboot the TV (AC power off/on)
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
USB Problem
Check USB 2.0 Cable for damage
or open conductors
Check L701 voltage level 5V
Y
N
Replace L701
Check JK706
Replace JK706
Y
N
Replace Mstar IC100
Y
Check IC400
N
Replace IC400
Y
13/14
It should satisfy the
Pixel Clock
on CAS.
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
No OSD Problem
Check P400 OR P403
#17(CKM) , #18(CKP) ,
#32(CKP) , #33(CKM)
Maybe Mstar has problems
Replace IC100
Check LVDS Cable damage
or open connectors
.
Check PDP Module
Control board
Refer to Module CAS
Replace Cable
Check Vs,Va, 5V,17V
on Powwer Board
Replace Power Board
Check P1100
Disp_EN,VaVs ON, 5V_MNT
Check GPIO Path of IC100
Y
Y
Y
Y
N
N
N
N
14/14