Sony DSR-300 Service Manual page 113

2-18. BOARD SWITCH AND SLIT
SETTINGS
2-18-1. SV-164 Board
. S500
Settings at shipment:[||||]
1. DESTINATION setting
[ON]: NTSC
OFF: PAL
2. DESTINATION setting (Effective when pin 1 is on.)
ON: UC
[OFF]: J
3. DEBUGGING mode setting (for designer)
[ON]: At shipment and all times
4. SLACK DETECTION ON/OFF switching
[ON]: SLACK mute off
OFF: SLACK mute on
SV-164 board (A side)
DSR-300/P(E)/V1
2-18-2. ES-21/21P Board
SL401 (POWER SAVE)
When SL401 is opened and no external VTR is connected,
current consumption of the unit can be reduced.
OPEN: current consumption reduction
The power supply circuit (Q419) on the ES-21 board is
turned to ON when the external VTR has been connected
to the EXT VTR connector (pin 26) on the rear panel and
the power of the external VTR is turned to ON. As a result,
various signals are output from pins 93 to 100 of the ES-21
board.
Usually, SL401 is set to "OPEN" position at the factory.
SHORT: current consumption no-reduction
Regardless of the EXT VTR connector's connection, the
power supply circuit (Q419) on the ES-21 board is always
ON, and the various signals are output from pins 93 to 100
of the ES-21 board.
A
1
2
S500
ON
1 2 3 4
3
4
5
SL401
C D E
B
SL401
ES-21 board (A side)
F
G
CN101
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