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2. ELECTRICAL ADJUSTMENTS
[Adjustment condition]
• Input signal
Video signal:
1.0Vp-p/75
Ω
terminated, 16 steps gray scale (Composite
video signal)
Component Video signal: 0.7Vp-p/75
Ω
terminated, 16 steps gray scale (Component
video signal with 480i, 480p, 575p, 720p, 1035i or 1080i
format)
Computer signal:
0.7Vp-p/75
Ω
terminated, 16 steps gray scale pattern (XGA)
• Picture control mode
“NORMAL” mode unless otherwise noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering to the service mode
and adjusting the service data.
2.1 Output Voltage Adjustment
After replacing the Power Board, PF.C. Board, readjust the Output voltage adjustment
as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (-) of K6C.
2. Adjust the voltage by using VR01 as following.
AC Input
Reading
230V
380V ±2V
120V
372V ±2V
2.2 Fan Voltage Adjustment
1. Connect a digital voltmeter to test point “TP6602” (+) and chassis ground (-).
2. Enter to the service mode, select item no. “29” and set data value to “1”.
3. Adjust the voltage to be 12.1 ±0.1Vdc by using VR6601.
4. Check that the voltages at test points “ TP6601” (+), “TP6603” (+) and chassis ground
(-) are 13.0 to 13.5Vdc.
5. Select item no. “29” and set data value to “0”.
Part 3: Adjustment
3-7
CAUTION
The each circuit has been made by the fine adjustment at factory. Do
not attempt to adjust the following adjustments except requiring the
readjustments in servicing otherwise it may cause loss of performance
and product safety.
CAUTION
Be sure to connect the lamp when taking this adjustment.
Содержание LV-7105
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Страница 3: ...CANON Multimedia Projector LV 7105U D78 5132 LV 7105E D78 5133 SERVICE SMANUAL...
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Страница 11: ...Part 1 General Information...
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Страница 33: ...Part 2 Repair Information...
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Страница 55: ...Part 3 Adjustment...
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Страница 77: ...Part 4 Troubleshooting...
Страница 78: ......
Страница 81: ...Memo Part 4 Troubleshooting 4 3...
Страница 91: ...Part 4 Troubleshooting 4 13 TP561 S H B INTPUT TP571 TP1571 S H B OUTPUT TP505B TP506B S H B OUTPUT...
Страница 92: ...Part 4 Troubleshooting 4 14 4 IC BLOCK DIAGRAMS FA5332M Power Factor Control IC01 AN5265 AUDIO OUTPUT IC001...
Страница 93: ...Part 4 Troubleshooting 4 15 PW164 10RK System Control Scan Converter IC301 CXA2111R LCD Driver IC401...
Страница 94: ...Part 4 Troubleshooting 4 16 M62358FP DAC IC431 CXD3503R White Uniformity Compensation IC471...
Страница 96: ...Part 4 Troubleshooting 4 18 IDT71V016S RAM IC811 CXA2016S Sync Separator IC1021...
Страница 97: ...Part 4 Troubleshooting 4 19 MC10H351ML IC1501 LM76CHMX Thermal Sensor IC1831 IC1832...
Страница 99: ...Part 4 Troubleshooting 4 21 TC4053BF Switching IC5001 SAA7114H Digital Video Processor IC5101...
Страница 100: ...Part 4 Troubleshooting 4 22...
Страница 101: ...Part 5 Parts Catalog...
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Страница 103: ...PARTS CATALOG Multimedia Projector LV 7105U REF NO D71 5132 LV 7105E D71 5133 Power Projector LV 7105J D71 5131...
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Страница 113: ...U 1 U 2 V 1 V 2 W 1 X 1 Z Page 5 CANON LV 7105J REF No D78 5131 LV 7105U D78 5132 LV 7105E D78 5133...
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Страница 118: ...Part 6 Electrical Diagrams...
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