JVC TK-1280E - Page 45

TK-1280E/-1180E/-1281EG
Test
point
Procedure
Se
Wavefoom VIDEO OUT R102 (BURST @IRIS : CLOSED
monitor,
LEVEL)
1.
Connect
a
waveform
monitor,
vectorscope,
[MAT/ENC
or
oscilloscope
to
the
video
outoput.
Vectorscope,
board]
2.
Adjust
the
burst
to
286
mV
(NTSC)
/
300
mv
or
(PAL)
with
R102
(BURST
LEVEL).
Oscilloscope
(Vectorscope
:
75
%)
40IRE
(300 mVp-p)
17
|
CARRIER
Vectorscope
|
VIDEO
OUT
R92
(R-Y)
@IRIS
:
CLOSED
BALANCE
R93
(B-Y)
1.
Connect
a
vectorscope
to
the
video
output.
adjustment
(MAT
/ENC
2.
Use
R92
(R-Y)
and
R93
(B-Y)
to
adjust
the
board]
carrier
balance
so
that
it
may
come
to
he
vectorscope
center.
(No. 1647) 19