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(5) Feature ID Map
1
21XE40B
(E)
23
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 . . . . . . . . . . .
COLOR
. . . . . . . . . . .
BRIGHT
. . . . . . . . . . .
R ON
. . . . . . . . . . .
G ON
. . . . . . . . . . .
B ON
. . . . . . . . . . .
SERVICE
RON
3
1
195
51
.
MAX
MIN
CENTER
ON (1)
OFF (0)
OFF (0)
1: ON
0: OFF
1
— 25 —
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
3
1
9. Reset the item DCOL to "1" level.
10. Write the memory by pressing
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
. . . . . . . . . . .
DISPLAY POSITION ADJUSTMENT (DISP)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Select DISP with
4. Adjust with
and
5. Write the memory by pressing
6. Check if the text is displayed on the screen.
SERVICE
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
5. Adjust with
and
6. Write into the memory by pressing
SUB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
KV-21XE40B
.
1
4
for: 1.70 ± 0.05 Vp-p.
6
White
1.70 ± 0.05 Vp-p
Black
then
ON (1)
and
.
for adjustment of characters to center .
then
DISP
15
1.8 ± 0.05 Vp-p
and
.
to obtain a faintly visible cross-hatch.
then
.
.
.
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