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2.10 PC/AV-Video Adjustment-1
Presetting
1. Input the 16-step gray scale video signal and computer signal.
[PC/AV-video adjustment]
2. Connect an oscilloscope to test point “TP503G” (+) and chassis ground (-).
3. Enter to the service mode, select item no. “15” and change data value to adjust “b” to
be 1.5 ±0.01Vp-p at each
VIDEO
and
COMPUTER
mode.
4. Select
COMPUTER
mode, select item no. “12” and change data value to adjust “a” to
be 4.00 ±0.01Vp-p.
5. Select
VIDEO
mode, select item no. “12” and change data value to adjust “a” to be
4.00 ±0.01Vp-p.
[R-video adjustment]
6. Connect an oscilloscope to test point “TP501R” (+) and chassis ground (-).
7. Enter to the service mode and select
COMPUTER
mode.
8. Select item no. “13” and change data value to adjust “a” to be 4.00 ±0.01Vp-p.
9. Select
VIDEO
mode and item no. “13” and change data value to adjust “a” to be 4.00
±0.01Vp-p.
[B-video adjustment]
10. Connect an oscilloscope to test point “TP505B” (+) and chassis ground (-).
11. Enter to the service mode and select
COMPUTER
mode.
12. Select item no. “14” and change data value to adjust “a” to be 4.00 ±0.01Vp-p.
13. Select
VIDEO
mode and item no. “14” and change data value to adjust “a” to be 4.00
±0.01Vp-p.
Part 3: Adjustment
3-12
(a)
(b)
black level
white level
white level
Fig. 3-8
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...
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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 118: ...Part 6 Electrical Diagrams...
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