LG 42PT450 Manuals

Manuals and User Guides for LG 42PT450. We have 1 LG 42PT450 manual available for free PDF download: Service Manual

LG 42PT450 Service Manual

LG 42PT450 Service Manual (74 pages)

Chassis: PD11A

Brand: LG | Category: Plasma TV | Size: 12.62 MB

Table of Contents

Contents
2
Safety Precautions
3
Leakage Current Cold Check (Antenna Cold Check)
3
Leakage Current Hot Check Circuit
3
Specification
4
Adjustment Instruction
6
Application Range
6
Main PCB Check Process
6
Boot File Download
6
USB Download
7
ADC Process
7
Function Check
8
Total Assembly Line Process
8
Check Display and Sound
8
Power PCB Assy Voltage Adjustment - Vs Voltage Adjustment
8
DPM Operation Confirmation - Only Apply for MNT Model
9
DDC EDID Write (RGB 128Byte)/(HDMI 256Byte)
9
EDID Data
9
EDID DATA Auto Download
9
Manual Download
10
Checking the Eye-Q Operation
11
Ping Test
11
3D Function Test
11
Model Name and Serial Number Download
11
Signal Table
12
Command Set
12
CI+ Key Download
12
Check the Method of CI+ Key Value
12
SW Download Guide
13
Block Diagram
14
Exploded View
15
Circuit Diagram
16
PDP TV Repair Process Index
25
No Picture/Sound OK
26
Repair Process
26
No Picture/No Sound
27
Mal-Discharge/Noise/Dark Picture
28
Picture Broken/Freezing
29
Vertical Bar/ Horizontal Bar
30
No Power (Not Turn On)
31
Power Problem
31
Turn off (Instant, under Watching)
32
No Sound/ Sound Distortion
33
Sound Problem
33
General Function Problem
34
Remote Control & Local Key & RF Emitter Checking
34
Repair Process Reference Data Index
36
Picture Problem
38
Check Module Pattern by Tilt Key
38
Audio Check Method
39
All Input Audio Problem
40
Digital TV / HDMI Audio Problem
41
Analog TV Audio Problem
42
Component / AV/RGB Audio Problem
43
Optical Audio Problem
44
Check Va, Vs on Power Board
45
PDP Module Label Information
46
Check & Adjust – Vy,Vsc, Vzb Voltage (50R3)
47
YSUS Board
47
ZSUS Board
48
Digital TV Video Problem
49
Analog TV Video Problem
50
Component Video Problem
51
RGB (D-Sub) Video Problem
52
AV Video Problem
53
HDMI Video Problem
54
Fuse Checking Method
55
Y-Sus Board Checking Method (50R3)
56
Measurement Method
56
Specifications
56
Measuring Method
57
Check 5V, 17V on Power B/D
58
Control Board Checking Method (50R3)
59
Mal Discharge Symptom
60
PDP Module Rom Ver. Checking Method
61
Y Drive B/D Checking Method (50R1)
62
Y Drive Board
62
(Half Picture) X- B/D Checking Method (50R1)
63
Defect Type Cause by PDP Module
64
Connector Type on PDP Module
65
RF Signal Level Checking Method
66
Check Voltage on Power Board
67
Power Problem
67
Power Board Checking Method
68
Check Power off History
69
Sound Problem
70
Speaker Cable Checking Method
70
General Function Defect
71
Check Remote Control IR Operation
71
Check Local Key Operation
72
Check RF Emitter Operation
73

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