![background image](http://html1.mh-extra.com/html/canon/lv-x4u/lv-x4u_service-manual_4177214044.webp)
Part 3: Adjustment
3-1
1. ADJUSTMENT
1.1 Adjustments after Parts Replacement
Contrast Adjustment
R-Contrast adjustment
G-Contrast adjustment
B-Contrast adjustment
Integrator lens adjustment
Relay lens-out adjustment
Fan control adjustment
Pedestal adjustment
Gain adjustment
Video center adjustment
Black reference adjustment
Common center adjustment
Gamma adjustment
White balance adjustment
White uniformity adjustment
●
●
●
❍
●
❍
●
●
●
●
●
●
●
●
●
●
❍
❍
❍
❍
Integrator
Lens (OUT)
Polarized glass
R
G
B
Optical Adjustments
Electrical Adjustments
Disassembly / Replaced Parts
LCD/Prism
Ass'y
Relay
Lens (OUT)
Power
Board
Main Board
●
: Adjustment necessary
❍
: Check necessary
Memory IC replacement
IC1841 on the main board stores the data for the service adjustments, and
should not be replaced except for the case of defective device.
If replaced, the re-adjustments are required following to the “Electrical
Adjustments”.
The data of lamp replacement counter is stored in the IC1841.
Please note that the lamp replace counter will be reset when the memory IC
(IC1841) is replaced.
(Lamp replace counter cannot be set to the previous value.)
Caution to memory IC replacement
When IC1801 is replaced with new one, the CPU writes down the default data of
the service adjustments to the replaced IC as the mentioned on the service
adjustment table. As these data are not the same data as factory shipped data,
it should be required to perform the re-adjustments following to the “Electrical
Adjustments”.
Please note that in this case the lamp replace counter will be reset.
Caution of Main Board replacement (in the case IC1841 is not defective)
When the main board is replaced, IC1841 should be replaced with the one on
previous main board. After replacement, it should be required to perform the re-
adjustments following to the “Electrical Adjustments”.
In this case, the lamp replace counter can be kept the value as before.
CAUTION
Содержание LV-X4U
Страница 2: ...CANON Multimedia Projector LV X4U D78 5532 LV X4E D78 5533 SERVICE SMANUAL ...
Страница 9: ...Part 1 General Information ...
Страница 26: ...Part 2 Repair Information ...
Страница 43: ...Part 3 Adjustment ...
Страница 62: ...Part 4 Troubleshooting ...
Страница 79: ...Part 4 Troubleshooting 4 17 AN5870SB RGB SYNC SW IC5201 LM4889 Audio Amplifier IC5031 ...
Страница 81: ...Part 4 Troubleshooting 4 19 FA5502 P F Control IC621 VPC3230D Video Decoder IC101 ...
Страница 82: ...Part 4 Troubleshooting 4 20 L3E07070 Signal Processor for TFT LCD IC401 NJW1141 Audio Selector IC5001 ...
Страница 83: ...Part 4 Troubleshooting 4 21 STR Z2156A Power Switching Control IC631 PW168A Scaler Main CPU IC301 ...
Страница 84: ...Part 4 Troubleshooting 4 22 TA1370FG Sync Separator Frequency Counter IC5302 ...
Страница 85: ...Part 5 Parts Catalog ...
Страница 86: ......
Страница 94: ......
Страница 96: ...V 1 U 2 U 1 V 2 Z 1 Z 2 X Y W Accessories Page 5 CANON LV X4J LV X4U LV X4E REF NO D78 5531 D78 5532 D78 5533 ...
Страница 100: ...Part 6 Electrical Diagrams ...