Vertical Sync Former Check - Sony AV-3600 Service Manual

5. If
it
does
not,
change
R007
from 100
k£2 to
200
k£2.
6-13.
VERTICAL SYNC FORMER CHECK
Test Point:
6-Pin
CAMERA
Receptacle
Check:
Waveform shown
in Fig.
6-13.
Adjustmen
t:
None
Signal
Source:
None
required
Equipment
Required: Oscilloscope
Procedure:
1.
Turn
on
the Videocorder with
or
without an
input
signal.
2.
Connect
a
75-ohm
resistor
between Pin 2 and
Pin 6
of the
6-pin
CAMERA
receptacle.
3.
Connect the scope to Pin
2.
4.
Check
that the
output
is
as
shown
in Fig. 6-13.
5. If
it
is
not,
check and troubleshoot the
SY3
Board
mounted
behind the connector
panel.
75n Vo'
*o\
u^°
)
V?
°J
^
^o^y
CAMERA
receptacle
7
±4H
±1
m
more
than
2V(p-p)
T
b
L
Fig.
6-
13. Vertical
sync
for
camera
6-8