LG 50PV350T-ZD (CHASSIS:PD11L) Service Manual ▷ View online
Making
Revision
9/10
PDP TV
Symptom
D. General Function Problem
Y
N
Repair Process
9
1. Remote controller (R/C) operating error
Move
Power problem
Section
2. Local KEY operating error
Check R/C itself
Operation
Normal
operating?
Normal
operating?
Y
Close
Replace R/C
If R/C operate,
Explain the customer
cause is interference
from light in room.
Check R/C Operating
When turn off light
in room
Check & Replace
Battery of R/C
Check & Repair
Cable connection
Connector solder
Connector solder
Normal
operating?
Check B+ 5V
On Main B/D
☞A26
Normal
Voltage?
Close
N
N
Check 5V on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
☞A12
Check IR
Output signal
Normal
Signal?
N
Y
Repair/Replace
IR B/D
N
☞A26
Replace
Main B/D
Y
Y
N
Check local
key
Operation
Normal
operating?
Check & Repair
Cable connection
Connector solder
Connector solder
☞A26
☞A27
Check Key
Output signal
Y
Normal
operating?
Close
N
Normal
Signal?
Repair/Replace
Local Key B/D
N
Replace
Main B/D
Y
☞A27
Remote control & Local Key & RF emitter checking
Making
Revision
10/10
PDP TV
Symptom
D. General Function Problem
Remote control & Local Key & RF emitter checking
Repair Process
10
3. RF emitter operating error
Y
N
Check RF
emitter
Operation
Check & Repair
Cable connection
Connector solder
Connector solder
☞A28
Replace RF
emitter board
Y
Display
normally
Close
N
Normal
operating?
N
Replace
Main B/D
Y
☞A28
Check the signal
between the RF emitter
and Mani board
Normal
Signal?
Check the RF emitter
SW Ver. at SVC menu
Normal
operating?
Close
Y
N
A6
Video Check Method
6
No.
Symptom
Detail
Page
Remark
1
Picture Problem
Check Module pattern by Tilt key
A1
2
Audio check method
A2
3
Check Va, Vs on Power Board
A3
4
PDP Module Label Information
A4
5
Check & Adjust –VY,VSC,VZB voltage
- 50R3 –VY,VSC(Y-Sus) / VZB(Z-Sus)
- 50R3 –VY,VSC(Y-Sus) / VZB(Z-Sus)
A5
6
Fuse Checking Method
A7
7
Y-Sus Board Checking Method(50R3)
A8
8
Z-Sus Board Checking Method(50R3)
A9
11
Check 5V on Power B/D
A12
12
Control Board Checking Method(50R3)
A13
13
Mal discharge Symptom Picture
A14
14
PDP Module Rom Ver. Checking method
A15
15
Y Drive B/D Checking method
A16
17
(Half picture) X- B/D Checking method(50R3)
A18
Next page Continued
PDP TV Repair Process Reference data Index
A27
Check Local Key operation
General Function Problem
26
No.
Symptom
Detail
Page
Remark
18
Picture Problem
Defect type cause by PDP Module
A19
19
Connector Type on PDP Module
A20
20
RF Signal level Checking method
A21
21
Power Problem
Check voltage on Power board
A22
22
Power board Checking Method
A23
23
Check Power off History
A24
24
Sound Problem
Speaker cable checking method
A25
25
Check Remote control IR operation
A26
27
Check RF emitter operation
A28
PDP TV Repair Process Reference data Index
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