Sony DSR-2000 Service Manual page 295

7. Preparation of signal measurement
Use the tape path adjustment board DJ-461 (J-6444-610-B)
to perform the tape path adjustment.
(1) Setting of the tape path adjustment board
Connect the connector CN1 on the tape path adjust-
ment board with the connector CN303 on the EX-752
board of the unit.
Connect the connector CN2 on the tape path adjust-
ment board with the connector CN113 on the SY-278
board using the harness supplied with the board.
Harness (supplied with the board)
SY-278 board
(CN113)
EX-752 board (CN303)
(2) Switch setting of the tape path adjustment board
8
ON
S2
SW Bit Setting Function
S1 - 0 Select the REC head.
S2 1 OFF
2 OFF
3 OFF
4 OFF
5 OFF
6 OFF
7 OFF
8 ON Activate the switch setting of DJ-461
DSR-2000/2000P
Tape path adjustment
CN2
board, DJ-461
CN1
1
S1
8-1. General Information for Tape Path Adjustment
(3) Measuring points/signal for adjustment
Signal name Board
RF output DJ-461
(signal after envelope detection)
Switching pulse output DJ-461
GND DJ-461
DJ-461
E1
TP1
TP2
TP3
E2
[Preference] [Preference] [Preference] [Preference] [Preference]
SW S2
[2]
HEAD
REC E OFF OFF
REC O OFF OFF
PRE E OFF OFF
PRE O OFF
OFF
WJPB E1
OFF
OFF
WJPB E2
ON
OFF
WJPB O1
OFF
OFF
WJPB O2
ON
OFF
OFF
NJPB E1
NJPB E2 ON
NJPB O1 OFF
NJPB O2 ON
Measuring point
TP2
TP3
E1
E2
Tape path adjustment
board, DJ-461
S1 SWITCHING
[5]
[0] H
[1] H
[0] L
[1] L
[2] H
[3] H
[2] L
[3] L
[2] H
ON
[3] H
ON
[2] L
ON
[3] L
ON
8-5