Sony BVH-2000, Operation And Maintenance Manual

Page: 314 / 505

(5-6-6. Outline of Remote Control)
2. REMOTE ..2 connectors
The REMOTE-2 and REMOTE-2 output connectors are
D-SUB 9-pin connectors which are used when RS-422-A serial
system is connected. For details on the
REMOTE-2 connectors, refer to "PROTOCOL OF REMOTE-2
(9PIN) CONNECTOR" in the separate manual.
When the REMOTE switch S6 on the SY-79 board
REMOTE-2, the multiplexer IC4M-9 is set high and the SIO
(IC21-15) TXDA output is converted to a serial signal by line
drivers IC4P-2 and IC4P-7. When the '"TRANSMIT ENABLE"
output from bit-I of address FC03H as the port
data is at this time, the MASTER OUT
+/-
output
33N34A and the MASTER IN
+/-
signal input from pin
34B/35B are enabled.
When the machine is
the "MASTER
output from bir-O (IC5J-2) of
address FC03H and the '"PRIORITY IN' signal input into pin-
35A are set and the ..,-....,MASTERSTATUS" signal output
from IC4N-6 is set low. As a result, line driver IC4P-2 is enabled
and line driver IC4P-7 is inhibited,
the MASTER
signal is output from pin 33N34A, and the REMOTE IN
+/-
from the external machine is from pin 34B/35B
through IC4Q-5, IC4M-14 and IC4M-15 into the SIO (IC2I)
RXDA pin. Furthermore, when the REMOTE switch S6 is set to
REMOTE-2, IC4N-3 is set low, the driver IC4-0-6 enabled
and the PRIORITY OUT signal is output from pin-33B.
3. REMOTE ..3 Connector
This is D-SUB connector which is used when
equipment which inputs or outputs parallel remote control
is connected.
When the REMOTE switch S6 on the SY-79 board is set to
REMOTE-3. IC4B-17 of address FC02H) is set low and the
data are read into the SY-79 board CPU. When this CPU detects
this status. IC5L
to hit-O of address FCOOH) and IC5K
of address FCO 1H) become active, and the the
ports are received. Moreover. the status are output all the
time from output port IC6I (bit-7 to bir-O of address FCOOH),
regardless of the REMOTE
switch
The following are allocated to the various
REMOTE-3 connector:
of the
Pin-I: FF IN
FAST FORWARD
command
Pin-2: OUT 7 (REC SW OUT)
Low while REC button is depressed
Pin-3: OUT 6 (PLAY SW OUT)
Low while PLAY button is depressed
Pin-4: OUT (STOP SW OUT)
Low while STOP button is depressed
active
BVH-2000( U/C)/PS/PM
BVH-2180(U/C)/PS/PM
Pin-5: OUT 4 (ENTRY SW)
Low while ENTRY button is depressed
OUT
(REF ERROR
SERVO REF
panel has been set incorrectly
Pin-7: OUT 2 (CF LOCK OUT)
Low while the VTR is locked by color framing
OUT
Low while drum is servo-locked
Pin-9: OUT 0 (CAPSTAN LOCK OUT)
Low while capstan is servo-locked
Not used
Pin-II: SP Not used
Pin -12: DVT: Gate pulse of VITC data
Pin -13: DRD: Gate pulse of time code reader
Pin-14: CK
Clock 453kHz.
SECAM)
Pin-I5: DATA-l(LSB)
Pin-32: DATA-2
Pin-16: DATA-4
Pin-I7: DATA-8(MSB)
TCR, TM 1,TCR user bit, TM2, VITC, TCG, VITC user
bit and TCG
user bit denote the timer code bits,
resnectivelv and bits make up 1word. 8 words form a
time
Pin-I8: PREROLL command input: Low active
Pin-19: STANDBY ON command input: Low active
Pin-20: REWIND IN command input: Low active
Pin-2I: IN active
Pin-22: SPARE 2 (STANDBY OFF command
(AUDIO-4 REC control input): Low active
This is normally the input pin for the STANDBY OFF
command.
However, in the case of the PS-04 model,
when reference is A201H"
4-13-10 and the SY -79 board is remodeled, is serves as
the AUDIO-4 REC control input pin.
Pin-23: SPARE 3 (SYNC 6 LACK output): Low active
(AUDIO-3
Normally, the SYNC 6 LACK which mdicates
that the PB output of the sync channel has dropped
400p,sec or more and, moreover, that this has been
continuous for 6 more fields, output from this pin.
However, when S2-5 the LG board
the SY -79 board jumper
J
3 is changed from A to B, this
pin serves as the AUDIO-3 REC control input pin.
REC status output: Low active
Pin-25: VIDEO 6 LACK
This is the alarm which indicates that the PB
output of the video channel has dropped 400p,sec or
more and, moreover, that this has been continuous for 6
or more fields.
5-6-9
SYSTEM CONTROL SYSTEM
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