1-25 (E)
VSR-2000A
1-14-4. Subcarrier Phase Adjustment
Personal computer
SONY
Signal generator
COMPOSITE
VSR-2000A
COM
REF IN
REF OUT
75
Z
terminal
75
Z
terminal
75
Z
terminal
Vector monitor
REF
CH-1
COMPOSITE2
COMPOSITE1
EXT-232C
Picture monitor
*
*
*
: Use the cables of the same length.
Adjustment conditions
.
Remove the front panel assembly of
the VSR-2000A.
.
Connect the COM output of the
personal computer to the EXT-232C
on the front of the VSR-2000A.
.
Select the service port selection
switch so that it is aligned with the slot
of the board that you want to adjust.
(Refer to Section 2-6-5.)
.
Confirm that the indication of the
terminal is DEC>.
Specifications
CH1 : REF
CH-2 : COMPOSITE 1
GEN LOCK : CH-1
On an Vector monitor display
A = 0
±
1.5
d
Adjustment method
1. Enter
SC
\
\
\
\
\
PHASE
into the
terminal software of a personal
computer and press the ENTER
key to display the present value.
2. In order to delay the subcarrier
phase, enter
SC
\
\
\
\
\
+
and press
the ENTER key to delay the
output phase by 1.4
d
.
3. In order to advance the subcarri-
er phase, enter
SC
\
\
\
\
\
_
and
press the ENTER key to
advance the output phase by
1.4
d
.
4. To input the desired phase
value directly, enter
SC
\
\
\
\
\
10
or
others and press the ENTER
key.
Adjustment range 00 to FF
(hexadecimal number)
5. Repeat step 2 or 3 to adjust the
value to satisfy the specifica-
tions.
6. Enter
SC
\
\
\
\
\
SET
, and press the
ENTER key to write the adjust-
ment value to the NVRAM.
7. Enter
RES
and press the
ENTER key. The DEC-117
board is reset.
Confirm that the specifications
are satisfied in this status.
EXT-232C
Service port selection
switch
A
1-14. Video System Adjustment
