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Making
Revision
PDP TV
Symptom
A. Picture Problem
RF Signal level Checking method
Repair Process-Reference data
◆ MENU
Æ Press Red Button on R/C Æ Singal TEST -> Diagnostics
1. Check whether Signal Strength, Signal Quality is over 50% or not.
2. If Signal Strength, Signal Quality is under 50%,install the Booster to increase signal level.
2. If Signal Strength, Signal Quality is under 50%,install the Booster to increase signal level.
A21
A21
Making
Revision
PDP TV
Symptom
Repair Process-Reference data
Check voltage on Power board
A22
B. Power Problem
Checking Order
Checking Order
Pin Map
Power B/D↔Main B/D
No.
Checking
Point
Spec
Remark
1
STBY 5V
2
5V
5V
3
17V
17V
4
AC DET
High(3.3V~5V)
5
RL_ON
High(3.3V~5V)
6
M_ON
High(3.3V~5V)
A22
P813
Making
Revision
PDP TV
Symptom
Repair Process-Reference data
Power board Checking Method
A23
B. Power Problem
① Check soldering status on each major component.
② Check there is problem on major component or not by eye.
(CONDENSER, FET, IC, Resistor)
③ Check FUSE.
④ Check 5V,Va,Vs voltage
※ PSU Maker: 1) LGIT 2) LITEON 3) YUYANG
※ If happen Power board Protection,
check whether there is Short or Open on Y-SUS, Z-SUS B/D or not.
▣ Checking Method
Va Voltage ADJ
- value
+ value
Adjust way
◆ Check 5V,Va,Vs voltage
: For Voltage specification,
refer to the PDP Module Label.
SC101
Vs Voltage ADJ
◆ Adjust Va,Vs voltage.
Vs adjust
Va adjust
A23
P811
Power B/D↔ Y-Sus B/D(P811)
P813
NAME
PIN
7
6
5
4
3
2
1
VS
VS
VS
NC
GND
GND
GND
VA
M5V
Making
Revision
PDP TV
Symptom
Repair Process-Reference data
Check Power off History
A24
B. Power Problem
▣ Check Power off History by using SVC Remote controller
Press “In-start” →Press” 0000” → Select “Power Off History” → Pop up Module Rom ver.
LAST HISTORY
1~5
1~5
Appear Power off history 5ea.
(1 is the latest history)
RCU OFF
Power off by Remote control
KEY OFF
Mechanical power switch off
2HOUR OFF
After turn on by OnTimer, There is no operation
for 2hours
for 2hours
NO SIGNAL OFF
In case that there is no signal for 15minutes
A24
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