10th Generation PlasmaTV Technical Guide.pdf

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Panasonic Service and Technology Company
Technical Guide
10
th
Generation Plasma Display Television
National Training
Panasonic Service and Technology Company
Prepared by
Cesar Perdomo and Jean Magloire
Panasonic Service and Technology Company
National Training
Copyright
©
2007 by Panasonic Services Company
All rights reserved. Unauthorized copying and distribution is a violation of law.
Warning
This service information is designed for experienced repair technicians only and is not designed for use by the
general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers
in attempting to service a product. Products powered by electricity should be serviced or repaired only by
experienced professional technicians. Any attempt to service or repair the product or products dealt with in this
service information by anyone else could result in serious injury or death.
Table of Contents
Subject
2007 Panasonic Plasma Line-up
Models Comparison
High Resolution (FULL-HD Panel)
TH-42PX75U Board Layout & Description
TH-42PX75U Board Layout (Pictorial)
2006/2007 Signal Process/Switching Circuit
Overall Block Diagram
Standby Circuit
STB5V/STB3.3V Distribution
Main CPU VCC Supply (A Board)
TV_SUB_ON/TUNER_SUB_ON
TV_SUB_ON (F_STB_ON)
TV_SUB_ON (Relay Drive Circuit)
PFC Circuit
ACFB (Active Clamp Full Bridge Switching) Circuit
MAIN/SUB Voltages
F+15V, DTV9V, SUB5V SOS Detect Circuit
Power On Operation
P15V/P5V Circuit
Vsus/Vda Circuit
Troubleshooting (No Power/Dead Unit) Part 1
Page #
5
6
9
13
14
15
16
21
25
28
30
32
34
36
37
39
41
43
51
53
55
Subject
Troubleshooting (No Power/Dead Unit) Part 2
SOS Circuit Overview
DRV_RST SOS
Location of Q9302
Close-up View of Q9302
5 Blinks SOS (1)
SOS (Drive-reset)
D & C Boards Connection
12 Blinks SOS
Signal Circuit Overview
Video Process Block Diagram
D Board Block Diagram
Panel Drive (TH-42PX75U)
Audio Process Block Diagram
Self-Check Function
How to Reset the Unit
Self-Check Menu
Check point
Serviceman Mode
Serviceman Mode Menu and Navigation
Internal Test Patterns
Page #
56
59
62
63
64
66
68
69
70
75
77
79
81
83
88
89
90
91
92
93
95
3
Table of Contents (Continued)
Subject
Driver Setup Adjustment
Initialization Pulse Adjustment
Quick adjustment after P.C.B. exchange
Page #
96
97
98
4
2007 Panasonic Plasma Line-up
5

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