Panasonic TH-P42ST50H, Service Manual

Page: 31 / 125

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9.1.2. White balance adjustment
Name of measuring instrument Remarks
Color analyzer
(Minolta CS-2000 or equivalent)
Procedure Remarks
1. Enter the Service mode.
2. Receive the Analog-RF (except for no signal) or set CVBS/YUV/HDMI (no signal is
available).
3. Select [WB-ADJ] by using [1] and [2] key in the remote controller.
4. Check that the colour balance and the viewing mode is the values written in table1 and 2.
5. [INNER PATTERN] is displayed by using [5] key by using [5] key in the remote controller.
6. Select [G-CUTOFF] by using the [3] and [4] key in the remote controller, and set the value
to [80] by using the volume [+] and [-] key.
Also, [B-CUTOFF] and [R-CUTOFF] set to [80]
7. Set [G-DRIVE] value to the initial data (ex. D0).
8. Set the color analyzer and adjust color point to the values written in table1 by using [B-
DRIVE] and [R-DRIVE]
9. Increase RGB-DRIVE value so that the maximum drive value of one of R-DRIVE or G-
DRIVE or B-DRIVE should become [FF]
([ALL-DRIVE] set to [FF].)