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4-3-7. CNR ADJ.
BOARD
VIDEO 1 C.B.A.
TP
T3804(A-1)
ADJ
VR3803(A-1), VR3806(A-1)
TAPE
S-VHS SELF RECORDED TAPE
INPUT
COLOUR BAR SIGNAL
MODE
PLAY
M.EQ
OSCILLOSCOPE
SPEC
C LEVEL
=
MINIMUM
Note:
This adjustment should be always completed
after 4-3-6. DOC BALANCE adj.
[SET UP]
S-VHS SW
=
ON
1.
Record the colour bar signal a few minutes by the
S-VHS mode.
. 2.
Connect the oscilloscope to TP3804.
3.
Playback the just recorded portion.
4.
Adjust VR3803 and VR3806 mutually so that
chroma signal becomes minimum as possible.
TP3804
(H.RATE)
MINIMUM
Figure E3
4-3-8. CHARACTER POSITION ADJ.
BOARD
VIDEO 2 C.B.A.
TP
VIDEO OUT
ADJ
C3111 (B-1)
TAPE
INPUT
COLOUR BAR SIGNAL
MODE
E-E
M.EQ
MONITOR
SPEC
SEE FIGURE
1.
Supply a colour bar signal to the video input.
2.
Set the MENU Switch to SET.
The menu screen appears on the monitor TV. (If
the Hour Meter is appeared, advance to the next
page by using the PLAY (-) or REC
(+)
button.)
3.
Adjust C3111 so that the end of the cursor is
located as shown in Figure E4.
4-4
MONITOR TV
CURSOR
Figure E4
4-3-9. AID INPUT LEVEL ADJ.
BOARD
VIDEO 3
TP
TP8001(D-11
ADJ
VR8001 (D-1 )
TAPE
INPUT
COLOUR BAR SIGNAL
MODE
E-E
M.EQ
OSCILLOSCOPE
SPEC
2.4Vp-p
+
O.05Vp-p
[SET UP]
INPUT:
LINE
1.
Supply a colour bar signal to video input.
2.
Connect the Oscilloscope to TP8001.
3.
Adjust VR8001 so that video level is 2.4Vp-p
±
O.05Vp-p as shown in Figure E5.
TP8001
(H.RATE)
Figure E5
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