LG 60PK750-AA (CHASSIS:PA02A) Service Manual ▷ View online
ⓒ LG Electronics. Inc.2009
Check P500 All
Voltage Level (17V, 5V)
Check Power connector
OK ?
Replace Power board
Y
N
Y
Check L507
Voltage Level 1.2V
Replace L507
Y
N
Check IC505 (pin2)
Voltage Level 3.3V
Replace IC505
N
Check IC503 (pin2) Output
Voltage Level (2.5V)
Replace IC503
N
Y
Making
전자 - 6-2
Revision
1/15
PDP TV
Symptom
Power-Up Boot Fail
2010. 2 . 22
ⓒ LG Electronics. Inc.2009
Making
전자 - 6-2
Revision
2/15
PDP TV
Input
Block
Digital TV Video Problem
Check RF Cable
Y
Check TU601 Power
5V(C509), 3.3V(L602),
2.5V(L601),1.2V(L600)
Check Voltage
5V : IC503 Output
3V : IC505 Output
3V : IC505 Output
2.5V : IC503 Output
1.2V:IC601 Output
Y
N
Check Video color
Check Monitor Out Video
(Scart out)
Check other input / OSD
Check IIC Line
Check SCL/SDA1 Line
N
Maybe Tuner has problems
: Replace Tuner
N
Y
Check TP Clock, Data, Sync
Replace Tuner
N
Y
N
Y
Check Module
N
Y
Change BCM(IC100)
ⓐ
Y
Go to ⓐ
2010. 2 . 22
ⓒ LG Electronics. Inc.2009
< CVBS waveform – sample >
- Defend on the input signal.
Making
전자 - 6-2
Revision
PDP TV
Input
Block
Analog TV Video Problem
Check RF Cable
Check CVBS signal
TU601 #11 Pin
Replace Tuner(TU601)
Y
N
Check IC503 Output
Voltage(L502)
Y
N
Y
Replace BCM(IC100)
Check 5V voltage
on TU601(Pin3)
3/15
2010. 2 . 22
ⓒ LG Electronics. Inc.2009
Making
전자 - 6-2
Revision
PDP TV
Input
Block
Component Video Problem
Check input signal format
Is it supported?
Check signal
on C338,C339,C340
Y
Check the damage of JK1000
And Replace Connector
N
Y
Replace BCM(IC100)
Y
Check Component Cable
※ Measured signals depend on the input signal.
4/15
2010. 2 . 22
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