5-3. P BOARD ADJUSTMENTS
RV 2200
RV 2107
RV 2103
RV 2201
0
B
RV 2105
B-Y
B OUT
R-Y
2106
FL 2205
RV 2108
P BOARD
TP 1 3 a
-component
Y - I N
[RF AGC ADJUSTMENT(IF BLOCK
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.
3) Adjust AGC VR of IF 1201 so that snow noise and
cross-modulation disappear from the picture.
4) Confirm them at every channel.
CONTRAST ADJUSTMENT(RV
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.
3) Observe signal at TP-13 a an oscilloscope.
4) Adjust RV 2108 (SUB CONT) so that the signal
level between white and pedestal becomes 550 10
as shown.
COLOR ADJUSTMENT(RV
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.
3)
COLOR
. . . . . . . . . . . .
HUE
. . . . . . . . . . . .
4) Connect an oscilloscope to TP-47 B.
5) Adjust RV 2107 so that voltage is 0.9
Vp-p.
0-Y
HUE ADJUSTMENT(RV
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.(
SIZE)
3) PICTURE
80%
BRIGHT . . . . . . . . . . . .
COLOR
. . . . . . . . . . . .
HUE
. . . . . . . . . . . .
4) Connect an oscilloscope to TP-47 B.
5) Adjust
so that the
coincides with
shown in figure.
[BRT LEVEL ADJUSTMENT(RV
1) Input a color-bar signal.
2) Observe PICTURE IN PICTURE mode.
3) Adjust RV
that the signal level
between C.B.black level and Sync level becomes
same level as shown.
TP-13 a output
LEVEL
