— 25 —
KV-21XE40B
6. Connect an oscilloscope to CN1752 Pin
4
or (R OUT) of
C Board and ground.
7. Select RDRV with and .
8. Adjust with and for: 1.70
±
0.05 Vp-p.
9. Reset the item DCOL to "1" level.
10. Write the memory by pressing
then
.
11. Return the following back to normal after adjustment.
PICTURE . . . . . . . . . . .
MAX
COLOR . . . . . . . . . . .
CENTER
BRIGHT . . . . . . . . . . . CENTER
R ON
. . . . . . . . . . . ON (1)
G ON . . . . . . . . . . . ON (1)
B ON . . . . . . . . . . .
ON (1)
DISPLAY POSITION ADJUSTMENT (DISP)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Select DISP with and
.
4. Adjust with and
for adjustment of characters to center .
5. Write the memory by pressing
then
.
6. Check if the text is displayed on the screen.
SUB BRIGHT ADJUSTMENT (SBRT)
1. Input a cross-hatch signal.
2. Set to Service adjustment Mode.
3. Set the PICTURE and BRIGHT to minimum.
4. Select SBRT with
and
.
5. Adjust with and
to obtain a faintly visible cross-hatch.
6. Write into the memory by pressing
then
.
SUB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL)
1: ON
0: OFF
SERVICE RON 1
5-2.
A BOARD ADJUSTMENTS
H. FREQUENCY ADJUSTMENT
1. Input a monoscope signal.
2. Set to Service adjustment Mode.
3. Connect a frequency counter to base of Q501
(TP-500 H. DRIVE).
4. Select the item of AFC, set to 3 level (free run).
5. Check H. Frequency for the 15650
±
200 Hz.
6. Select the item of AFC again, adjust the level "0".
7. Write into the memory by pressing
then
.
V. FREQUENCY ADJUSTMENT
1. Select video 1 with no signal input.
2. Set the conditions with standard setting.
3. Connect the frequency counter across TP-508 or CN501
VDY (+) pin
6
connector and ground.
4. Check V. Frequency for the 50
±
2 Hz.
SUB CONTRACT ADJUSTMENT (SCON)
1. Input a color-bar signal.
2. Select the red color.
3. Set to Service adjustment Mode.
4. Select the item DCOL to "0" level.
5. Set the conditions as follows.
PICTURE . . . . . . . . . . .
MAX
COLOR . . . . . . . . . . .
MIN
BRIGHT . . . . . . . . . . .
CENTER
R ON
. . . . . . . . . . .
ON (1)
G ON
. . . . . . . . . . .
OFF (0)
B ON
. . . . . . . . . . .
OFF (0)
1.8
±
0.05 Vp-p
White
n
n
Black
1.70
±
0.05 Vp-p
SERVICE DISP 15
(5)
Feature ID Map
KV-
DESTINATION
ID-0
ID-1
ID-2
ID-3
ID-4
ID-5
1
2 1 X E 4 0 B
(E)
23
3
1
195
51
1
3
6
1
4
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
