Screen (G2); Method Of Setting The Service Adjustment Mode; White Balance Adjustments - Sony TRINITRON KV-29FS12A Service Manual

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3-4. SCREEN (G2)

1. Input a dots pattern.
2. Set the PICTURE and BRIGHTNESS controls at minimum
and COLOR control at normal.
3. Adjust SBRT, GCUT, BCUT in service mode with an
oscilloscope as shown below so that voltages on the red,
green, and blue cathodes are 170 VDC ± 2V.
170 VDC – 2V
Ground
4. Observe the screen and adjust SCREEN (G2) VR in FBT
to obtain the faintly visible background of dot signal.
3-5. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE
Service Mode Procedure
1. Standby mode (power off).
2. Press
Channel 5
Display
on the Remote Commander (press each button within a
second).
Service Adjustment Mode In
1. The CRT displays the item being adjusted.
2. Press
or
on the Remote Commander to select the item.
3. Press
or
on the Remote Commander to change the
data.
4. Press
then
Service Adjustment Mode Memory
Turn set off then on to exit Service Adjustment Mode.
Display
Mode
Category
Item
service
defl
hsiz
Signal
write
ntsc
Type
vchp
00000000
00000000
Pedestal
+
Sound volume
Power
to save into the memory.
Item
Data
16
— 19 —

3-6. WHITE BALANCE ADJUSTMENTS

1. Input an entire white signal with burst.
2. Set to Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Adjust with SBRT if necessary.
5. Select GCUT and BCUT with
6. Adjust with
and
for the best white balance.
7. Set PICTURE and BRIGHTNESS to maximum.
8. Select GDRV and BDRV with
9. Adjust with
and
for the best white balance.
10. To write into memory, press
KV-29FS12A
and
.
and
.
then
.

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