Focus; Method Of Setting The Service Adjustment Mode; White Barance Adjustment - Sony TRINITRON KV-20TS29 Service Manual

3-3. FOCUS
Adjust FOCUS control for best picture.
FOCUS
3-4. SCREEN(G 2)
1.
2.
Input a dots pattarn.
Set the PIC, BRT controls at minimum and COLOR
control at normal.
. Adjust BKG VRs so that voltages on the red, green
and blue cathodes are 170 V dc with an oscilloscope
as shown in Fig.11.
. Observe the screen and adjust SCREEN (G 2)RV
702 to obtain the faintly visible background of dot
signal.
170 V de pedestal
GND
Fig.11
3-5. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE
SERVICE MODE PROCEDURE
1. Standby mode.(Power off)
2. [DISPLAY|~[5|->[VOL (+)|-[POWER] on the
Remote Commander. (Press each button within a
second.)
KV-20TS29/20TS32
KV-21STR2/2170RS
RM-Y116
SERVICE ADJUSTMENT MODE IN
Item
data
Disp.
(Item)
0 SERVICE AFC
1000
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 |MUTING| then JENTER| to write into
memory.
SERVICE ADJUSTMENT MODE MEMORY
MUTING| Green
{
ENTER] Red
SERVICE
1000
WRITE
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 the PICTURE and BRIGHT to minimum.
4. Adjust with SBRT if necessary.
5. Select G CUT and B CUT with[IJand[4}.
6. Adjust with[3]and|6|for the best white balance.
7. Set the PICTURE and BRIGHT to maximum.
8. Select GAMP and BAMP with{i]and|4}
9
. Adjust with [3]and|6]for the best white balance.
10. Write into the memory by pressing|MUTING|then
ENTER}.