Sub-Brightness Adjustment; G2 Adjustment - Sony TRINITRON KD-34XBR2 Service Manual

20. Change white balance offset data for the video-5 mode as follows:
Device Name Adj. Item #
2150P-1 1
2150P-1 2
2103-1 20
2103-1 21
21. Write the data to memory.
22. Change the set from video-5 mode to video-6 mode. An input signal
is not necessary.
23. Change white balance offset data for the video-6 mode as follows:
Device Name Adj. Item #
2103-1 20
2103-1 21
24. Write the data to memory.
This completes the white balance adjustment.

8-2. SUB-BRIGHTNESS ADJUSTMENT

SET-UP CONDITION:
Picture mode: PRO mode at factory default (press the RESET button
while in PRO mode adjustment menu), then set PICTURE to minimum.
The room must be dark.
PROCEDURE:
1. Enter the service mode.
2. Select the video-1 input with no signal applied so that the screen is
black (except for the on-screen display).
3. Set the sub-bright offset data as follows:
Device Name Adj. Item #
2150P-1 11
4. Adjust the sub-bright data so that there is no light output from the CRT
in the black areas of the screen.
Device Name Adj. Item #
2150P-1 3
* Adjust as necessary.
5. Write the data to memory.
This completes the sub-brightness adjustment.
Name Data
CBOF 36
CROF 36
CBOF 36
CROF 38
Name Data
CBOF 32
CROF 32
Name Data
SBOF 7
Name Data
SBRT *
— 32 —

8-3. G2 ADJUSTMENT

Perform this adjustment whenever the CRT or D-board is replaced,
and whenever tinting or faint lines are seen in all-black areas of
the screen.
SET-UP CONDITION:
Display mode: FULL (NTSC)
Picture mode:STANDARD (enter the STANDARD mode adjustment menu
from the user menu, then press the RESET button on the remote
control to set the STANDARD settings to the factory settings).
PROCEDURE:
1. Select an unused input so that the screen is black except for the
on-screen display.
2. Make the room as dark as possible.
3. Turn G2 RV9002 on the C-board clockwise until a slight glow is seen in
the black areas of the screen.
4. Turn G2 RV9002 on the C-board counter-clockwise until the glow
disappears and the black areas have no light output.
RV9002
This completes the G2 adjustment.
KD-34XBR2
C BOARD