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
Summary of Contents for D78-5532
Page 2: ...CANON Multimedia Projector LV X4U D78 5532 LV X4E D78 5533 SERVICE SMANUAL ...
Page 9: ...Part 1 General Information ...
Page 26: ...Part 2 Repair Information ...
Page 43: ...Part 3 Adjustment ...
Page 62: ...Part 4 Troubleshooting ...
Page 79: ...Part 4 Troubleshooting 4 17 AN5870SB RGB SYNC SW IC5201 LM4889 Audio Amplifier IC5031 ...
Page 81: ...Part 4 Troubleshooting 4 19 FA5502 P F Control IC621 VPC3230D Video Decoder IC101 ...
Page 84: ...Part 4 Troubleshooting 4 22 TA1370FG Sync Separator Frequency Counter IC5302 ...
Page 85: ...Part 5 Parts Catalog ...
Page 86: ......
Page 94: ......
Page 100: ...Part 6 Electrical Diagrams ...