Canon LV-S3E/D78-5423, Руководство по обслуживанию

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Part 3: Adjustment
3-1
1. ELECTRICAL ADJUSTMENTS
1.1 Adjustments after Parts Replacement
Contrast Adjustment
R-Contrast adjustment
G-Contrast adjustment
B-Contrast adjustment
Condenser lens adjustment
Relay lens adjustment
PC pedestal adjustment
PC gain adjustment
Video gain adjustment
480p pedestal adjustment
480p gain adjustment
480i gain adjustment
Gamma adjustment (PC and AV)
Common center adjustment
White balance adjustment (PC and AV)
❍ ●
❍ ●
❍ ●
❍ ❍
❍ ❍
●
●
●
●
●
●
●
● ●
❍ ❍
Optical
Unit
Polarized glass
R
(
✽
)
G B
Optical Adjustments
Electrical Adjustments
Disassembly / Replaced Parts
LCD/Prism
Ass’y
Power
Board
Main
Board
●
: Adjustment necessary
❍
: Check necessary
Note(
✽
): The polarized glass(R) is sticked on the condenser lens(R).
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, it should be performed the re-adjustments following to the “Electrical
Adjustments”.
The data of lamp replacement monitor timer is stored in the IC1841.
Please note that the lamp replace counter is reset when the memory IC
(IC1841) is replaced.
(Lamp replace counter can not be set to the previous value.)
Caution to memory IC replacement
When IC1841 is replaced with new one, the CPU writes down the default data of
the service adjustments to the replaced IC, refer to 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