-21-
Service Adjustments
CAUTION !
Do not attempt to adjust service adjustments not listed below otherwise it may cause loss of performance and for
correct operation.
■ Setting the Initial data
This adjustment is controlled by the CPU (IC8000) through the IIC Bus Data Line in the chassis, and those adjustment
data are memorized the memory IC (IC8001). Therefore, Main board or the memory IC (IC8001) is replaced, these
data will be disappeared. Readjust should be made. Initial data is provided in the CPU ROM, when the memory IC
(IC8001) is replaced with new one. CPU ROM data is loaded into the memory. Initial data is provided to operating the
monitor basically. For operating the monitor quality performance, further adjustment is required following chassis elec-
trical adjustment.
1.
Receive good quality signal.
2.
Enter the Service Mode.
3.
Confirm data value to be the same as the
Service Adjustment Data Table
. If it is different, change to correct data
4.
Exit the Service Mode.
■ White balance Adjustment
Pattern
White Pattern 100% (in AV mode).
Condition
Picture Mode: STANDARD
Color Temperature: NORMAL
Aging Time: More than 10 minutes
Adjustment
1.
Enter the Service Mode.
2.
Select "
Source ALL
" by pressing ed button, and select "Properties White" by pressing 7 8 button.
3.
Set R,G,B value to “FF” by pressing NUMERIC buttons.
To adjust Red : Press
1
(data value up) and
4
(data value down).
To adjust Green : Press
2
(data value up) and
5
(data value down).
To adjust Blue : Press
3
(data value up) and
6
(data value down).
Service Mode
V1.04 1110UH4L42
Source All
Properties White
Red 0 Green 0 Blue 0
4.
Decide one item in three items to a fixed value (For example, let
R
be fixed value), select item of other 2 colors
(Example,
G
or
B
), and adjust to produce a normal black and white picture in highlight areas.
(Note: At this time, Adjust the other 2 colors data less than fixed data.)
5.
Exit the Service Mode.
After adjustment, confirm white balance again by normal picture.
Summary of Contents for LCD-42XF6
Page 4: ... Chassis Block Diagram MAIN SIGNAL PROCESSING CIRCUIT ...
Page 6: ... IC Block Diagrams On the ASSY PWB MAIN IC001 QTPA3123D2 P ...
Page 7: ... IC Block Diagrams On the ASSY PWB MAIN IC3300 QSTV8318F M ...
Page 9: ... IC Block Diagrams IC7201 QCS4344 CZZ P IC5001 QXXAVD069 P ...
Page 10: ... 10 IC7200 QXXAVD067 M IC Block Diagrams ...
Page 11: ... 11 IC003 QTPA6110A2 P IC Block Diagrams ...
Page 23: ... 23 Mechanical Disassembly 1 STAND Removal 1 Remove 6 screws and remove the STAND Stand ...
