Canon LV-7105E/D78-5133 User Manual download pdf (Page 45)

4. OPTICAL PARTS DISASSEMBLIES

4.1 Projection Lens Removal

1. Remove the Cabinet top and cabinet front following to “Mechanical Disassemblies”.

2. Remove 4 screws and remove the Projection Lens.

4.2 Optical Unit Top Removal

1. Remove the Cabinet top, front, main board, component boards and power unit cover

following to “Mechanical Disassemblies”.

2. Remove 6 screws and take the optical unit top off upward.

Part 2: Repair Information

2-11

Fig. 2-16

Fig. 2-17

Optical Unit Top

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 133 134

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 22
3.5 Control port connector 22
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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Canon LV-7105E/D78-5133 User Manual Page 45

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