Canon D78-5382, Руководство по обслуживанию, Страница: 46 / 126

1. PRECAUTIONS FOR ADJUSTMENT
1.1 Adjustments after Parts Replacement
Part 3: Adjustment
3-1
Memory IC Replacement
IC351 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 IC351.
Please note that the lamp replace counter will be reset when the
memory IC (IC351) is replaced.
(Lamp replace counter can not be set to the previous value.)
Caution to memory IC replacement
When IC351 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 IC351 is not defective)
When the main board is replaced, IC351 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
Contrast Adjustment
Condenser lens adjustment
Condenser lens-out adjustment
Relay lens-out adjustment
❍ ●
❍ ●
❍ ●
R-Contrast adjustment
●
G-Contrast adjustment ●
B-Contrast adjustment
●
Fan voltage adjustment
Signal center adjustment
●
PSIG adjustment
●
Gain adjustment [PC]
●
Gain adjustment [Video]
●
Gain adjustment [Component]
●
Gamma gain adjustment [PC]
●
Gamma gain adjustment [AV]
●
Common center adjustment
●
Signal offset adjustment [PC]
● ●
Signal offset adjustment [AV]
❍
●
●
White balance adjustment
❍
Disassembly / Replaced Parts
LCD/
Prism
Ass'y
Condenser
Lens
Condenser
lens-Out
Relay
lens-Out
P.F.
Board
Power
Board
Main
Board
Polarized glass
R G B
Optical Adjustments
Electrical Adjustments
●
: Adjustment necessary
❍
: Check necessary