2.7 Gamma Adjustment
[PC-Gamma adjustment]
1. Receive the 100% whole-white computer signal with
COMPUTER IN [RGB]
mode.
2. Enter the service mode.
3. Measure luminance on the screen with the luminance meter. It is
A
for the reading of
luminance meter.
4. Change the signal source to the 50% whole-white computer signal with
COMPUTER
IN [RGB]
mode.
5. Select item no. “
16
” and change data value to make the reading of luminance meter
to be
A
×
23%
.
[AV-Gamma adjustment]
1. Receive the 100% whole-white composite video signal with
Video [Video]
mode.
2. Enter the service mode.
3. Measure luminance on the screen with the luminance meter. It is
B
for the reading of
luminance meter.
4. Change the signal source to the 50% whole-white composite video signal with
Video
[Video]
mode.
5. Select item no. “
16
” and change data value to make the reading of luminance meter
to be
B
×
22%
.
Note:
If the Luminance meter is not equipped, it is not required to perform these
readjustments and set data value of item no. “
16
” to be initial data
512
.
2.8 Common Center Adjustment
1. Receive the 16-step gray scale computer signal with
COMPUTER IN [RGB]
mode.
2. Enter the service mode.
3. Project only
red
light component to the screen.
4. Select item no. “
15
” and change data value to obtain the minimum flicker on the
screen.
5. Project only
green
light component to the screen.
6. Select item no. “
14
” and change data value to obtain the minimum flicker on the
screen.
7. Project only
blue
light component to the screen.
8. Select item no. “
13
” and change data value to obtain the minimum flicker on the
screen.
Part 3: Adjustment
3-11
Содержание LV-S3E/D78-5423
Страница 2: ...CANON Multimedia Projector LV S3U D78 5422 LV S3E D78 5423 SERVICE SMANUAL ...
Страница 9: ...Part 1 General Information ...
Страница 24: ...Part 2 Repair Information ...
Страница 42: ...Part 3 Adjustment ...
Страница 59: ...Part 4 Troubleshooting ...
Страница 73: ...Part 4 Troubleshooting 4 14 BA7078AF Sync Detector IC5301 BA9743AFV DC DC Converter IC371 ...
Страница 74: ...Part 4 Troubleshooting 4 15 LM4865 Audio Amplifier IC5003 PW168A Scaler Main CPU IC301 ...
Страница 75: ...Part 4 Troubleshooting 4 16 TA1370FG Sync Separator Frequency Counter IC5302 VPC3230D Video Decoder IC101 ...
Страница 76: ...Part 5 Parts Catalog ...
Страница 77: ......
Страница 93: ...Part 6 Electrical Diagrams ...