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1. PRECAUTIONS FOR ADJUSTMENT
1.1 Adjustments after Parts Replacement
Part 3: Adjustment
3-1
Memory IC handling
Memory IC (IC1801) on the main board stores the data for the service
adjustments, and should not be replaced except for the case of
defective device.
The data of lamp replacement monitor timer is stored in the IC1801.
Please note that the lamp replacement monitor timer is reset when the
memory IC (IC1801) is replaced.
(Lamp replacement monitor time can not be set to the previous value.)
Caution to memory IC (IC1801) replacement
When IC1801 is replaced with new one, the CPU writes down the default
data of the service adjustments to the replaced IC. 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 the lamp replacement monitor timer is reset.
Caution of Main Board replacement (in the case IC1801 is not defective)
When the main board is replaced, IC1801 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 replacement monitor timer can be kept the value
as before.
CAUTION
Condenser Lens Adjustment
❍
●
Condenser Lens (OUT) Adjustment
❍
●
Relay Lens (OUT) Adjustment
❍
●
Contrast Adjustment
R-Contrast adjustment
●
G-Contrast adjustment
●
B-Contrast adjustment
●
Output voltage adjustment
●
Fan voltage adjustment
●
Pedestal adjustment
●
NRS adjustment
●
Signal center adjustment
●
Black level adjustment
●
PC offset adjustment
●
PC gain adjustment
●
AV gain adjustment
●
Common center adjustment
●
●
Gamma shift adjustment
❍
●
White balance adjustment
❍
❍
Disassembly / Replaced Parts
LCD/
Prism
Ass'y
Condenser
lens
Condenser
lens
(OUT)
Relay lens
(OUT)
P.F unit
Power
supply
unit
Main
board
Polarized glass
R
G
B
Optical Adjustments
Electrical Adjustments
●
: Adjustment necessary
❍
: Check necessary
Содержание D78-5311
Страница 9: ...Part 1 General Information ...
Страница 22: ...Part 2 Repair Information ...
Страница 43: ...Part 3 Adjustment ...
Страница 65: ...Part 4 Troubleshooting ...
Страница 82: ...Part 4 Troubleshooting 4 17 BA7078AF Selector IC6241 CXA2101AQ RGB Matrix IC4101 ...
Страница 83: ...Part 4 Troubleshooting 4 18 CXD2064Q Digital Comb Filter IC2101 L3E01031 Level Shift IC3501 IC3531 IC3561 ...
Страница 85: ...Part 4 Troubleshooting 4 20 ML60851 USB I F IC9801 M62393 D A IC2571 ...
Страница 86: ...Part 4 Troubleshooting 4 21 TB1274AF Video Decoder IC1101 TA1318N AFC Detector IC6171 ...
Страница 87: ...Part 4 Troubleshooting 4 22 FA7612CA PWC Controller IC65A IC671 IC681 STR Z2156 Switching Controller IC631 ...
Страница 88: ...Part 5 Parts Catalog ...
Страница 89: ......
Страница 107: ...Part 6 Electrical Diagrams ...
Страница 117: ......