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PDP4294LV1
Service Manual
Akai PDP4294LV1 Service Manual Page 83
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Table of contents
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caution: check certainl
y after removing FPC.
Normal diode value=
OVER LOAD(reverse)
■
Check FPC out
put diode value.
Normal diode valu
e=0.375(forward)
■
Variable
resistance of Z RAMP
waveform slope.
4. Trouble shooting.
1
2
...
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...
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SERVICE MANUAL
1
Safety Precaution
2
PRODUCT SAFETY NOTICE
3
Technical Specifications
10
Block Diagram
13
Circuit Diagram
15
HIC_MICOM
16
USP490M-42LP
17
Remove for Production
24
Power and Ground
27
Video Port
27
Display Port
27
Graphics Port
27
Audio/Tuner
31
Remote control receiver
34
External L/R Speakers
34
Remote control
35
Parts position
37
PCB function
38
PCB failure analysis
39
Main IC Specifications
41
Preliminary
42
for Flat Panel Displays
43
1. Introduction
46
SiI 161B PanelLink
47
Receiver
47
Data Sheet
47
<
48
NJW1144 AUDIO PROCESSOR
49
General
51
Repair and Maintenance
52
DESCRIPTION
53
FEARURES
53
APPLICATIONS
53
GENERAL SPECFICATIONS
54
Power Input Connector
55
Pin Assignment
56
9. Adjustment detail
57
LABEL Sticking Position
58
- Introduction
59
- Precautions
59
- Basic
59
- Trouble shooting
59
2. Precaution
64
3. Basic
66
1. X B/D
66
2. Z sustain B/D
67
3. Y drive B/D
68
5. Control Board
69
4. Y sustain B/D
69
6. DC/DC Converter part
70
8. FFC (Flat Flexible Cable)
71
9. COF (Chip On Film)
72
4. Trouble shooting
74
1. Connector
76
2. Exhaust tip Crack
77
3. PSU(Power Supply Unit)
78
4. Ctrl B/D
79
5. Y-sus B/D
80
6. Z-sus B/D
82
Power protection
84
2. Checking COF
85
A flow of address signal
88
3. Ctrl B/D
88
1 line open or short
89
2. Scan IC check
92
1. Check FPC
93
2. Check scan IC
93
How to check IPM
94
Exploded View
98
Software upgrade
100
Software upgrade Process
101
Plasma is in standby mode
102
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