— 26 —
KV-27V40 / 27V45 / 27V65 / 29VL40 / 29VL65A / 29VL65C / 29VL85 / 29VL95
(3) Screen-corner Convergence
Fig. 9
3-5. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE
(1) SERVICE MODE PROCEDURE
1.
Standby mode. (Power off)
2.
on the
Remote Commander. (Press each button within a second.)
(2) SERVICE ADJUSTMENT MODE IN
3.
The CRT displays the item being adjusted.
4.
Press
1
or
4
on the Remote Commander to
select the item.
5.
Press
3
or
6
on the Remote Commander to
change the data.
6.
Press
then
to write into memory.
(3) SERVICE ADJUSTMENT MODE MEMORY
3-4. SCREEN (G2)
1.
Input a dots pattern.
2.
Set the PICTURE and BRIGHT controls at minimum
and COLOR control at normal.
3.
Adjust SBRT, GCUT, BCUT in service mode with an
oscilloscope as shown in Fig. 11 so that voltages on the red,
green, and blue cathodes are 170Vdc.
4.
Observe the screen and adjust SCREEN (G2) VR
to obtain the faintly visible background of dot signal.
Affix a permalloy assembly corresponding to the misconverged
areas:
Fig. 10
7.
Turn set off and on to exit.
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 BRIGHT to minimum.
5.
Adjust with SBRT if necessary.
6.
Select GCUT and BCUT with
1
and
4
.
7.
Adjust with
3
and
6
for the best white balance.
8.
Set the PICTURE and BRIGHT to maximum.
9.
Select GDRV and BDRV with
1
and
4
.
10. Adjust with
3
and
6
for the best white balance.
11. Reset DCOL to "1".
12. Write into the memory by pressing
then
.
1. Adjust FOCUS control for best picture.
3-3. FOCUS
Fig. 11
Green
Red
NNNNN
NNNNN
pedestal
NNNNN
GND
170Vdc
170 V dc
Disp.
(Item)
Item
data
SERVICE AFC 0
Summary of Contents for TRINITRON KV-27V45
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