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Plasma TV
42PT250
User Manuals: LG 42PT250 HD Plasma TV
Manuals and User Guides for LG 42PT250 HD Plasma TV. We have
2
LG 42PT250 HD Plasma TV manuals available for free PDF download: Service Manual
LG 42PT250 Service Manual (73 pages)
Brand:
LG
| Category:
Plasma TV
| Size: 11.13 MB
Table of Contents
Table of Contents
2
Important Safety Notice
3
General Guidance
3
Leakage Current Cold Check(Antenna Cold Check)
3
Leakage Current Hot Check
3
Safety Precautions
3
Application Range
4
Test Method
4
Module Specification
4
Specification
4
Model General Specification
5
Main PCB Check Process
6
Boot File Download
6
Adjustment Instruction
6
USB DOWNLOAD (*.Epk File Download)
7
ADC Process
7
Function Check
7
Check Display and Sound
7
Total Assembly Line Process
8
POWER PCB Assy Voltage Adjustment (Vs Voltage Adjustment)
8
Adjustment Preparation
8
Manual Download
9
DDC EDID Write (HDMI 256Byte) -> Not Used any More, Use Auto D/L
9
EDID DATA Auto Download
9
Edid Data
9
Checking the EYE-Q Operation
10
Model Name & Serial Number Download
10
Model Name & Serial Number D/L
10
Download MAC Address, CI+ Key and Widevine Key
11
Signal TABLE
11
Command Set
11
Method & Notice
11
SW Download Guide
12
Check the Method of CI+ Key Value (RS232)
12
Block Diagram
13
Exploded View
14
Schematic Diagram
15
PDP TV Repair Process Index
24
Repair Process
25
No Picture/Sound OK
25
No Picture/No Sound
26
Mal-Discharge/Noise/Dark Picture
27
Picture Broken/Freezing
28
Vertical Bar/ Horizontal Bar
29
No Power (Not Turn On)
30
Turn off (Instant, under Watching)
31
No Sound/ Sound Distortion
32
Remote Control & Local Key & RF Emitter Checking
33
PDP TV Repair Process Reference Data Index
35
Check Module Pattern by Tilt Key
37
Audio Check Method
38
Repair Process-Reference Data
39
All Input Audio Problem
39
Digital TV / HDMI Audio Problem
40
Analog TV Audio Problem
41
Component / AV/RGB Audio Problem
42
Optical Audio Problem
43
Check Va, Vs on Power Board
44
PDP Module Label Information
45
Check & Adjust – V, Y, VSC, VZB Voltage (50R3)
46
Digital TV Video Problem
48
Analog TV Video Problem
49
Component Video Problem
50
RGB(D-Sub) Video Problem
51
AV Video Problem
52
HDMI Video Problem
53
Fuse Checking Method
54
Y-Sus Board Checking Method(50R3)
55
Specifications
55
Z-Sus Board Checking Method(50R3)
56
Check 5V, 17V on Power B/D
57
Control Board Checking Method(50R3)
58
Mal Discharge Symptom
59
PDP Module Rom Ver. Checking Method
60
Y Drive B/D Checking Method(50R1)
61
(Half Picture) X- B/D Checking Method(50R1)
62
Defect Type Cause by PDP Module
63
Connector Type on PDP Module
64
RF Signal Level Checking Method
65
Check Voltage on Power Board
66
Power Board Checking Method
67
Check Power off History
68
Speaker Cable Checking Method
69
Check Remote Control IR Operation
70
Check Local Key Operation
71
Check RF Emitter Operation
72
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LG 42PT250 Service Manual (36 pages)
PLASMA TV
Brand:
LG
| Category:
Plasma TV
| Size: 11.05 MB
Table of Contents
Specification
4
Exploded View
15
YSUS Board
25
ZSUS Board
26
Specifications
28
Checking Method
30
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