Part 3: Adjustment
3-13
3. OPTICAL ADJUSTMENTS
Before taking optical adjustments below, remove the Cabinet Top and Main Board
following to the “Mechanical Disassemblies”
Adjustments require a plus screwdriver, 2.0mm hex wrench and a slot screwdriver.
3.1 Contrast Adjustment
[Before adjustment]
Input a 100% of black raster signal.
[R/G/B-contrast adjustment]
1. Loosen a screw
A
(Fig.3-9/3-10) on the polarized
glass mounting base which you intend to adjust.
2. Turn the polarized glass mounting base as shown
in Fig.3-9 to obtain the darkest brightness on the
screen.
3. Tighten the screw
A
to fix the polarized glass
mounting base.
Repeat steps 1 to 3 for remaining polarized glasses.
Do not disconnect connectors K8A, K8B, K8H, K48K, K48L, K66A, K66B,
K66C, K66D, K66E and K66F on the main board, because the projector
can not turn on due to operate the power failure protection.
CAUTION
Fig. 3-10
Fig. 3-9
Polarized glass
mounting base
A
A
A
A
Main Board
G-Polarized Glass
Mounting Base
R-Polarized Glass
Mounting Base
B-Polarized Glass
Mounting Base
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 ...