Focus; Screen (G2); Method Of Setting The Service Adjustment Mode; White Balance Adjustments - Sony Trinitron KV-13M42 Service Manual

KV-13M42/13M52/13M53/14MB42/14MB42C
Screen-Corner Convergence
1. Affix a permalloy assembly corresponding to the
misconverged areas.
a
a–d: screen-corner
misconvergence
c

3-3. FOCUS

1. Adjust FOCUS control (RV752 on C Board) for best
picture.

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 150 VDC.
Ground
4. Observe the screen and adjust SCREEN (G2) RV751
to obtain the faintly visible background of dot signal.
a
b
b
d
d
Screen
(RV751)
Focus
(RV752)
Pedestal
150 VDC
3-5. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE
Service Mode Procedure
1. Standby mode (power off).
2.
Display Channel 5
on the Remote Commander (press each button within a
second).
Service Adjustment Mode In
1. The CRT displays the item being adjusted.
c
2. Press or
item.
3. Press or
data.
4. Press
Service Adjustment Mode Memory
Turn set off then on to exit service adjustment mode.
SERVICE

3-6. WHITE BALANCE ADJUSTMENTS

1. Input an entire white signal.
2. Set to Service Adjustment Mode.
3. Set DCOL to "0".
4. Set the PICTURE and BRIGHTNESS to minimum.
5. Adjust with SBRT if necessary.
6. Select GCUT and BCUT with
7. Adjust with
8. Set PICTURE and BRIGHTNESS to maximum.
9. Select GDRV and BDRV with
10. Adjust with
11. Reset DCOL to "1".
12. To write into memory, press
— 16 —
+
Sound volume
Disp. Item
(Item) Data
SERVICE HSIZ 0
on the Remote Commander to select the
on the Remote Commander to change the
then to save into the memory.
WRITE
MUTING
Green
ENTER
Red
and .
and for the best white balance.
and .
and for the best white balance.
then
Power
.