Panasonic Aj Sd755 Operating Instructions Manual

							71
RS-232C interface
5. Command table
$Commands relating to operation control

OAs for the return (completion) message, [ACK] is
first returned when data is received, and the
execution message is subsequently returned. It
is only the execution message which is listed in
this table.
OIn the case of commands not listed in the table,
ER001 (invalid command) is returned after [ACK]
has been returned.
VTR
operationSend command
STOP[STX] OSP [ETX]45[STX] OSP [ETX]
This command is for stopping the tape travel.Return (completion)
message
STANDBY
OFF[STX] OBF [ETX]45[STX] OBF [ETX]
This command is setting the VTR to standby
OFF.
STANDBY ON[STX] OBN [ETX]45[STX] OBN [ETX]
This command is setting the VTR to standby ON. VTR
operationSend command
SHTL
FORWARD[STX] OSF:data [ETX]45[STX] OSF [ETX]
This is the forward direction shuttle command.
data = n : speed data
0 : STILL
1:a0.03
2:a0.1
3:a0.2
4:a0.5
5:a1
6:a1.85
7:a4.1 (a3.1)
8:a9.5
9:a16
A:a32

OThe a16 anda32 speed differ according to the
setting selected for setup menu No. 101 (SHTL
MAX).
OThe value for the DV/DVCAM tape is shown in
parenthesis (    ).Return (completion)
message
SHTL
REVERSE[STX] OSR:data [ETX]45[STX] OSR [ETX]
This is the reverse direction shuttle command.
data = n : speed data
0 : STILL
1:a0.03
2:a0.1
3:a0.2
4:a0.43 (a0.5)
5:a1
6:a1.85
7:a4.1 (a3.1)
8:a9.5
9:a16
A:a32

OThe a16 anda32 speed differ according to the
setting selected for setup menu No. 101 (SHTL
MAX).
OThe value for the DV/DVCAM tape is shown in
parenthesis (    ).
EJECT[STX] OEJ [ETX]45[STX] OEJ [ETX]
This command is for ejecting the cassette tape.
The resulting output picture and sound statuses
differ according to the settings selected for the
setup menu No. 105 (AUTO EE SEL) and the
setup menu No. 111 (FRZ MODE SEL).
PLAY[STX] OPL [ETX]45[STX] OPL [ETX]
This command is for starting playback.
REWIND[STX] ORW [ETX]45[STX] ORW [ETX]
This command is for rewinding the tape.
The resulting output picture and sound statuses
differ according to the settings selected for the
setup menu No. 105 (AUTO EE SEL).
The maximum tape speed differs according to the
setting selected for setup menu No. 102 (FF.
REW MAX).
FAST
FORWARD[STX] OFF [ETX]45[STX] OFF [ETX]
This command is for fast forwarding the tape.
The resulting output picture and sound statuses
differ according to the settings selected for the
setup menu No. 105 (AUTO EE SEL).
The maximum tape speed differs according to the
setting selected for setup menu No. 102 (FF.
REW MAX).
REC[STX] ORC [ETX]45[STX] ORC [ETX]
This command is for starting the recording. 
						

							72
RS-232C interface
$Commands relating to inquiries

OAs for the return (completion) message, [ACK] is
first returned when data is received, and the
execution message is subsequently returned. It
is only the execution message which is listed in
this table.
OIn the case of commands not listed in the table,
ER001 (invalid command) is returned after [ACK]
has been returned.
VTR
operationSend command
CTL/TC DATA
REQUEST[STX] QCD [ETX]45[STX] CD data [ETX]
This command is for inquiring about the counter
value.
data = f w gh mm ss ff
f=F
w=S
gh =
CTL mode:
g = SP (20h) : for a plus display
–(2Dh) : for a minus display
h=0 – 9 : hours
TC mode:
gh = 00 – 23 : hours
mm = 00 – 59 : minutes
ss = 00 – 59 : seconds
ff = 00 – 29 : frames

CTL or TC is returned, whichever corresponds to
the front display mode.Return (completion)
message
STATUS
REQUEST[STX] QOP [ETX]45[STX] 222[ETX]
This command is for inquiring about the VTR’s
operation mode.
222=
OEJ : EJECT
OFF : FAST FORWARD
OPL : PLAY
ORC : REC
ORW : REWIND
OSP : STOP (including the STANDBY ON)
SRS : (IN/OUT) PREROLL
OBF : STANDBY OFF
OSF : SHTL FORWARD
OSR : SHTL REVERSE
OJG : JOG FORWARD/REVERSE
OSW : VAR FORWARD/REVERSE
EAE : AUTO EDIT
EON : EDIT ON (MANUAL EDIT)
EPV : PREVIEW
ERV : REVIEW
ID (VTR No.)
REQUEST[STX] QID [ETX]45[STX] data [ETX]
This command is for inquiring about the VTR
used.
data = AJ-SD755P 
						

							73
SDTI interface
Digital data input/output operations using the SDTI
format (compressed digital interface) are enabled by
installing the AJ-YAC930G SDTI board (optional
accessory) in this unit.

SDTI (Serial Data Transport Interface) complies with
the SMPTE 305M standard.
The data stream format transferred via the SDTI
complies with the SMPTE 321M standard.
Precautions to observe when using the
SDTI signals
OThe unit can record only if the SDTI input signals
are 1atransfer signals in the DVCPRO format.
However, when playback signals other than normal
1aplayback signals have been input, there is no
guaranty for the pictures and sound recorded or for
pictures and sound with EE.
OEditing operations can be performed only when all
the video and audio signals as well as the time
codes in the SDTI input signals are regular data
based on the DVCPRO format.
OCUE signals are not transferred by the SDTI
interface.
OSDTI dubbing is not possible from tapes recorded
using the DV or DVCAM format. 
Use SDI when dubbing tapes recorded in the DV or
DVCAM format.
OWhen playing back a DV or DVCAM format tape,
DV compressed signals (Compliant with IEC61834-
2.) serve as the SDTI output.
OThe video and audio signals in the SDTI output
signals cannot be adjusted.
ODuring SLOW/STILL playback, the unprocessed
video and audio signals are output as the SDTI
output.
When these video and audio signals are to be
monitored using another device, they may differ
from the video and audio signals played back by
this unit.
PUSH PUSH PUSHAC IN
SIGNAL
GND
AES/EBU ANALOGCH1/2
INYVIDEO
VIDEO
OUT
SERVICE ONLY
REMOTE IN/OUTCH1 CH2AUDIO
IN
ENCODER REMOTE
RS-232C
PARALLEL
REMOTE OUT
IN
REF VIDEOIN
ON
OFF
P
B
P
R
Y1
2
(WFM)3(SUPER)
P
B
P
R
CH1/2
OUT
REMOTE
75Ω
ON
OFF75Ω
ANALOGTCIN
TCOUT
MON
L
MON
R
CH1 CH2AUDIO
OUTOPTION 2
OPTION 1
SDTIIN OUT
1
2
SDIIN OUT
ACTIVE
THROUGH1
2
3(SUPER)
PUSH PUSH PUSHAC IN
SIGNAL
GND
AES/EBU ANALOGCH1/2
INYVIDEO
VIDEO
OUT
SERVICE ONLY
REMOTE IN/OUTCH1 CH2AUDIO
IN
ENCODER REMOTE
RS-232C
PARALLEL
REMOTE OUT
IN
REF VIDEOIN
ON
OFF
P
B
P
R
Y1
2
(WFM)3(SUPER)
P
B
P
R
CH1/2
OUT
REMOTE
75Ω
ON
OFF75Ω
ANALOGTCIN
TCOUT
MON
L
MON
R
CH1 CH2AUDIO
OUTOPTION 2
OPTION 1
SDTIIN OUT
1
2
SDIIN OUT
ACTIVE
THROUGH1
2
3(SUPER)
Reference signal
generator
Source
Recorder
Connections involving two units
SDTI signals 
						

							74
Connector signals
VIDEO IN
SDI IN
(DIGITAL)BNCa2, Active through (Option)
Y, PB, PR
(ANALOG)BNCa3
VIDEO IN
BNCa2, Loop-through,
75Ωtermination switch provided
REF VIDEO IN
BNCa2, Loop-through,
75Ωtermination switch provided
AUDIO IN
SDI IN
(DIGITAL)BNCa2, Active through (Option)
AUDIO IN
(DIGITAL)BNCa1 (CH1/CH2)
AES/EBU format
AUDIO IN
(ANALOG)XLRa2 (CH1, CH2)
TIME CODE
INXLRa1
AUDIO OUT
SDI OUT
(DIGITAL)BNCa3 (Option)
AUDIO OUT
(DIGITAL)BNCa1 (CH1/CH2)
AES/EBU format
AUDIO OUT
(ANALOG)XLRa2 (CH1, CH2)
TIME CODE
OUTXLRa1
MONITOR
OUTXLRa2 (L/R)
HEADPHONES(front)Stereo mini jack
RS-422A REMOTE (9P)
OREMOTE IN/OUT
VIDEO OUT
SDI OUT
(DIGITAL)BNCa3 (Option)
Y, PB, PR
(ANALOG)BNCa3
VIDEO OUT
BNCa3
Pin No. Signal
1FRAME GROUND
2TRANSMIT A
3RECEIVE B
4RECEIVE COMMON
5
====
6TRANSMIT COMMON
7TRANSMIT B
8RECEIVE A
9FRAME GROUND
OREMOTE OUT
Pin No. Signal
1FRAME GROUND
2RECEIVE A
3TRANSMIT B
4TRANSMIT COMMON
5
====
6RECEIVE COMMON
7RECEIVE B
8TRANSMIT A
9FRAME GROUND 
						

							75
Connector signals
PARALLEL REMOTE (25P)
Pin No. Signal
1PLAY COMMAND
2STOP COMMAND
3FF COMMAND
4REW COMMAND
5REC COMMAND
6EJECT COMMAND
7STAND BY COMMAND
8PREROLL COMMAND
9IN SET COMMAND
10
====
11
====
12
610 V, MAX 300 mA
13PLAY STATUS
14STOP STATUS
15FF STATUS
16REW STATUS
17REC STATUS
18EJECT STATUS
19STAND BY ON STATUS
20PREROLL STATUS
21SERVO LOCK STATUS
22OPERATION ENABLE STATUS
23
====
24
====
25GND

OCOMMAND pins: TTL level, active low, 6100ms
edge electrical signal.
OSTATUS pins: open collector, sink current 6 mA
ENCODER (15P)
Pin No. Signal
1
====
2BLACK LEVEL
3C LEVEL
4GND
5+12V
6SYSTEM H 0
7SYS. SC COARSE (2)
8–12V
9CHROMA PHASE
10VIDEO LEVEL
11RET GND
12
====
13
====
14SYS. SC FINE
15SYS. SC COARSE (1)
RS-232C
D-SUB 25-pin (crossover cable supported)
Pin No. Signal Description
1FG Protective ground
(Frame ground)
2RXD Received data
(Data is sent to PC.)
3TXD Transmitted data
(Data is received from PC.)
4CTS Clear to send
(Shorted with pin 5.)
5RTS Request to send
(Shorted with pin 4.)
6DTR Data terminal ready
(No processing)
7SG Signal ground
(Signal ground)
20DSR Data set ready (+ voltage output after
communication enable status) 
						

							76
[GENERAL]
indicates safety information. Power supply:AC 100 – 240 V, 50 – 60 Hz
Power consumption:110 W (with all options)
Operating ambient temperature:
41°F to 104°F (5°C to 40°C)
Operating ambient humidity:
10% to 80% (no condensation)
Weight:
33.0 lb (15.0 kg)
Dimensions (WaHaD):
16 
3/4a6 15/16a16 15/16inch (424a175.2a430 mm)
(Not including the support legs, connectors, and JOG dial)
Recording format:
DVCPRO/DV format selectable
Recording video signal:
525i system
Recording audio signal:
48 kHz 16-bit 2 channels
Recording tracks:
Digital video audio:
helical track
The time code is recorded in the sub-code area.
Cue track:
1 track
Control track:
1 track
Tape speed:
33.820 mm/sec (DVCPRO)
Recording time:
184 minutes (using the AJ-5P92LP)
66 minutes (using the AJ-P66MP)
Tape:
Metal tape
FF/REW time:
Less than 3 min (with AJ-5P92LP)
Less than 2 min (with AJ-P66MP)
Digital slow:
–0.43ato +0.43a, +0.5a, +0.75aspeed 
(DVCPRO)
Editing accuracy:
±0 frames (using the time code)
Tape timer accuracy:
±1 frame (using the continuous CTL signal)
Servo lock time:
Less than 0.5 sec (color framing/standby ON)
Specifications
[VIDEO]
$Digital video
Sampling frequencies:
Y: 13.5 MHz, PB/PR: 3.375 MHz
Quantizing:
8 bits
Video compression method:
DV-Based compression (SMPTE 314M)
Video compression rate:
DVCPRO: 1/5
Error correction:
Reed-Solomon product code
Bit rate:
DVCPRO: 25 Mbps
$Digital IN (option)/Analog component OUT
Video bandwidth:
Y : 30 Hz to 5.75 MHz (±0.5 dB)
PB/PR : 30 Hz to 1.3 MHz (±0.5 dB), 1.5 MHz (–5.0 dB)
S/N ratio:
Better than 60 dB (Y)
K factor:
Less than 1% (Y 2T)
$Analog component IN/Analog component OUT
Video bandwidth:
Y : 30 Hz to 5.5 MHz (±1.0 dB), 5.75 MHz (–2.0 dB)
PB/PR : 30 Hz to 1.3 MHz (±1.0 dB), 1.5 MHz (–5.0 dB)
S/N ratio:
Better than 55 dB
K factor:
Less than 1% (Y 2T)
Y/PB, PR delay:
Less than 20 ns
$Analog composite IN/Analog composite OUT
Video bandwidth:
Y : 30 Hz to 4.5 MHz (±1.0 dB), 5.5 MHz (–3.0 dB)
Y/C delay:
Less than 20 ns
$Video input connector
Analog component input:
BNCa3 (Y, PB, PR)
Y: 1.0 V [p-p], PB/PR: 0.486/0.7 V [p-p] switchable,
75Ω(75% color bar, 7.5% setup)
Analog composite input:
BNCa2, loop-through, 75Ωon/off
VIDEO:1.0 V [p-p] (75Ω)
Reference input:
Analog composite, BNCa2, loop-through, 75Ωon/off
SDI input (option):
BNCa2, active through, complies with SMPTE 259M-C
standard
SDTI input (option):
BNCa1, complies with SMPTE 305M/321M standard 
						

							77
Specifications
[VIDEO]
$Video output connector
Analog component output:
BNCa3 (Y, PB, PR)
Y: 1.0 V [p-p], PB/PR: 0.486/0.7 V [p-p] switchable,
75Ω(75% color bar, 7.5% setup)
Analog composite output:
BNCa3, video 1, video 2 (video/WFM selectable), video 3
(superimpose on/off)
SDI output (option):
BNCa3, complies with SMPTE 259M-C standard
SDI 1, SDI 2, SDI 3 (superimpose on/off)
SDTI output (option):
BNCa2, complies with SMPTE 305M/321M standard
$Video signal adjustment
Video output gain:
±3 dB
Video output chroma gain:
±3 dB
Video output HUE:
±30°
Video output setup level:
±14 IRE
Video output sync phase:
±15 µsec
Video output SC phase:
±180°
[AUDIO]
$Audio input connector
Analog input (CH1, CH2):
XLRa2, 600Ω/high impedance selectable (factory setting: high
impedance), +4/0/–20 dBu selectable
Digital input (CH1/CH2):
BNCa1, AES/EBU format
SDI input (option):
BNCa2, active through, complies with SMPTE 259M-C/272M-
A standard
$Audio output connector
Analog output (CH1, CH2):
XLRa2, low impedance, +4/0/–20 dBu selectable
Digital output (CH1/CH2):
BNCa1, AES/EBU format, 
75Ω, 1.0 ± 0.2 V [p-p]
SDI output (option):
BNCa3, 75Ω, complies with SMPTE 259M-C/272M-A standard
Monitor output:
XLRa2, low impedance, +4/0/–20 dBu selectable
Headphones:
Stereo mini jack, 8Ω, variable level
[Other Input/Output Connectors]
Time code input:
XLRa1, 0.5 V to 8.0 V [p-p], 10 kΩ
Time code output:
XLRa1, low impedance, 2.0 V ± 0.5 V [p-p]
RS-422A input:
D-sub 9-pin, RS-422A interface
RS-422A output:
D-sub 9-pin, RS-422A interface
RS-232C:
D-sub 25-pin, RS-232C interface
Parallel input/output:
D-sub 25-pin
Encoder remote:
D-sub 15-pin
[AUDIO]
$Digital audio
Sampling frequencies:
48 kHz (synchronous with video)
Quantizing:
16 bits
Frequency response:
20 Hz to 20 kHz ±1.0 dB (at the reference level)
Dynamic range:
Better than 90 dB (1 kHz, emphasis OFF, “A” weighted)
Distortion:
Less than 0.05% (1 kHz, emphasis OFF, reference level)
Crosstalk:
Less than –80 dB (1 kHz, between 2 channels)
Wow & flutter:
Below measurable limit
Headroom:
20 dB
De-emphasis:
T1 = 50 µsec, T2 = 15 µsec (auto on/off)
$Cue track
Frequency response:
300 Hz to 6 kHz (–5.0 dB to +3.0 dB)
Weight and dimensions when shown are approxlmately.
Speclilcailons are subject to change without notice. 
						

							PANASONIC BROADCAST & TELEVISION SYSTEMS COMPANY
UNIT COMPANY OF MATSUSHITA ELECTRIC CORPORATION OF AMERICA
Executive Office:
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Broadcast PARTS INFORMATION & ORDERING:
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TECHNICAL SUPPORT:
Emergency 24 Hour Service (800) 222-0741
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