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Canon LV-7105E/D78-5133 User Manual Page 100
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Table of contents
TROUBLESHOOTING
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Part 4: T
roubleshooting
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SERVICE MANUAL
1
CANON Multimedia Projector
3
1. Service Manual Composition
5
2. Model Differences
5
3. Tools & Test Equipment
6
CONTENTS
7
Part 3: Adjustment
8
Part 4: Troubleshooting
9
Part 5: Parts Catalog
9
Part 6: Electrical Diagrams
9
Information
11
1. FEATURES
13
1.2 Major Features
14
Part 1: General Information
15
2. LV-7105 SPECIFICATIONS
17
2.2 Connectors
18
2.3 Accessories
18
2.4 Other specifications
18
3. NOMENCLATURE
19
3.2 Top controls
20
3.3 Rear panel terminals
21
3.4 Computer Input terminal
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3.5 Control port connector
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3.6 Remote control
23
3.7 Operating range
24
4. COMMENTARY
25
4.3 Hybrid gamma correction
26
4.4 Fan speed control
26
5. CONNECTING
28
6. SETTING-UP THE PROJECTOR
30
1. SAFETY INSTRUCTIONS
35
2. CIRCUIT PROTECTIONS
36
Air filters
37
Part 2: Repair Information
38
3. MECHANICAL DISASSEMBLIES
39
3.3 Main Board Removal
40
3.4 Fuse Removal
40
3.6 Line Filter Board Removal
41
3.8 Power Board Removal
42
3.10 Audio Amp. Board Removal
43
3.12 AC Inlet Ass’y Removal
44
4.1 Projection Lens Removal
45
4.2 Optical Unit Top Removal
45
A cutting corner
48
Dot marker
48
LCD Panel/Prism Ass’y
50
6. CLEANING
51
7. LAMP REPLACEMENT
52
Lamp Age
53
0123 Hours
53
Adjustment
55
1. BEFORE ADJUSTMENTS
57
Part 3: Adjustment
58
1.3 Service Conditions
60
Service Adjustment Data Table
61
2. ELECTRICAL ADJUSTMENTS
63
2.3 PC-Offset Adjustment
64
2.4 PC Gain Adjustment
64
2.5 Component Gain Adjustment
65
2.6 AV Gain Adjustment
66
2.7 PSIG Adjustment
66
2.8 Signal Center Adjustment
67
2.10 PC/AV-Video Adjustment-1
68
2.11 PC/AV-Video Adjustment-2
69
2.12 S/H Clock Adjustment
69
2.13 Common Center Adjustment
70
2.14 White Balance Adjustment
70
2.15 Black Balance Adjustment
71
3. OPTICAL ADJUSTMENTS
72
B to make color
73
3.3 Relay Lens Adjustment
75
4. TEST POINTS AND LOCATIONS
76
Troubleshooting
77
1. TROUBLESHOOTING
79
<Memo>
81
1.2 No Sound
84
1.3 No Picture
85
2. CONTROL PORT FUNCTIONS
87
3. WAVEFORMS
89
4. IC BLOCK DIAGRAMS
92
● M62358FP <DAC, IC431>
94
● MC10H351ML <IC1501>
97
● AV9155C <PLL, IC1961>
98
Part 4: Troubleshooting
100
Multimedia Projector
103
LV-7105U REF.NO.D71-5132
103
LV-7105E D71-5133
103
Power Projector
103
LV-7105J D71-5131
103
LV-7105U D78-5132
105
LV-7105E D78-5133
105
PARTS LIST
106
Electrical
118
Diagrams
118
Part 6: Electrical Diagrams
120
Example 1/2 D J 10K B
121
Example 6 W K 8.2
121
Example 1/2 C K 1M
121
SYSTEM CONTROL
123
CONVERSION
123
ASSY PWB, LINE FILTER
124
1AA0B10C3010B
125
ASSY,PWB,TEMP MP6A
125
1AASB10C3110A
125
ASSY,PWB,POWER MP6A SERVICE
125
AV BOARD
126
MAIN BOARD
126
BA033FP-E2
127
MN1382-Q-TX
127
(IC6101 108P)
128
MP6AA-05
129
LC24049A-TA7
130
COMPONENT BOARD
131
(LV-7105U/E)
132
(PCB_MP6PA/PP6PA)
133
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