Panasonic Digital Video Cassette Recorder Ajd850a Operating Instructions

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Table of AUTO OFF Error messages
Counter display DescriptionVTR operation(Restart condition)
CAP ROTATE TOO 
SLOW 
CAP TENSION ERROR 
DEW
DRUM ROTATE TOO 
FAST
E-FF 
DRUM ROTATE TOO 
SLOW
If the capstan motor speed is abnormally low, the  
AUTO OFF lamp lights, and the message display 
flashes.STOP 
(POWER OFF
®ON)
If an abnormal tension at the supply side is detected  
in the capstan mode, the AUTO OFF lamp lights, and 
the message display flashes.STOP 
(POWER OFF ®ON)
If condensation is...

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SERVO CONTROL 
ERROR
Counter display DescriptionVTR operation(Restart condition)
REEL DIR UNMATCHIf the reel motor at the take-up side is running in the  
reverse direction, the AUTO OFF lamp lights, and the 
message display flashes.STOP 
(POWER OFF
®ON)
REEL TENSION ERROR
SERVO COMM ERROR
SERVO ERROR
S-FF/REW TIMEOVER
S REEL ROTA TOO 
FAST
T REEL ROTA TOO 
FAST
T REEL TORQUE 
ERROR
UNLOAD ERROR 
S REEL TORQUE 
ERROR 
WINDUP ERROR
If an abnormal tension at the supply side is detected  
in the reel...

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1. Introduction
(1) The VTR can be operated by commands when the RS-232C interface is used.
(See command table on pages 96 Ð 98.)
(2) Conditions for acknowledging commands from RS-232C interface
The front panel REMOTE/LOCAL switch must be at REMOTE.
The setup menu item No. 204 ÒRS232C SELÓ must be ON.
If the above conditions are not met, [ACK] + [STX]ER001[EXT] is returned to the external unit.
Whether the [ACK] code is returned depends on the setting which has been selected for setup menu item...

RS-232C interface
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3. Software specifications
Protocol
1) Communication parameters
Communication system Asynchronous, full duplex
Communication speed 300/600/1200/2400/4800/9600
Bit length 7 bit/8 bit
Stop bit1 bit/2 bit
Parity bitNONE/ODD/EVEN
ACK codeACK code returned/ACK code not returned

The ACK code is what is returned from the VTR to the controller when data has
been successfully sent from the controller.
The underlining indicates the factory settings.
Any changes to the settings can be made...

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3) Return format [VTR ® controller (PC)]
The following responses are made to the command. If necessary, more than one response is made.
n When the communication has terminated normally
1. The receive completion message is returned.
[ACK]
06h
2. The execution completion message is returned.
[STX] [command] [data] [ETX]
02h XX XX XX XX-XX 03h
¥ [command]: This is the message (data) which is returned or the execution completion message identifier.
¥ [data]: This is the data to be returned. It can be...

RS-232C interface
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VTR
operationSend commandReturn (completion)
messageSupplementary notes
[STX] OSP [ETX] STOP
[STX] OSP [ETX]This command is for stopping the tape travel.
The resulting output picture and sound statuses 
differ according to the settings selected for the setup 
menu No. 105 (AUTO EE SEL).
[STX] OEJ [ETX] EJECT [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...

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VTR
operationSend commandReturn (completion)
messageSupplementary notes
[STX] OBF [ETX] STANDBY
OFF[STX] OBF [ETX]This command is setting the VTR to standby OFF.
[STX] OSR:data [ETX] SHTL
REVERSE[STX] OSR [ETX]This is the reverse direction shuttle command.
data = n:
0:
1:
2:
3:
4:
5:
6:
7:
8:
9:
A:speed data
STILL
´0.03
´0.1
´0.2
´0.43
´1
´1.85
´4.1
´9.5
´16
´32(DVCPRO),
(DVCPRO),
(DVCPRO),
(DVCPRO),
(DVCPRO),
(DVCPRO),
(DVCPRO),
(DVCPRO),
(DVCPRO),
(DVCPRO),´0.03
´0.1
´0.3
´0.5
´1
´1.85
´3.1...

RS-232C interface
Ð 98 Ð
VTR
operationSend commandReturn (completion)
messageSupplementary notes
[STX] QCD [ETX] CTL/TC
DATA
REQUEST
[STX] CD data [ETX]This command is for inquiring about the counter 
value.
[STX] QOP [ETX] STATUS
REQUEST[STX] xxx [ETX] data =  f w gh mm ss ff
f
w
gh
mm
ss
ff= F
= S
=
CTL:
TC:
=
=
=g =
h =
gh =SP (20h):
– (2Dh):
0 – 9: hours
00 – 23: hours
00 – 59: minutes
00 – 59: seconds
00 – 29: framesfor a plus display
for a minus display
CTL or TC is returned,
whichever corresponds...

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(3) Microsoft QuickBASIC sample program
CLS
STX$ = CHR$(&H2): ETX$ = CHR$ (&H3): NAK$ = CHR$(15): ACK$ = CHR$(&H6)
PRINT *** RS-232C COMMUNICATION SAMPLE PROGRAM ***
PRINT Type Command QUIT to quit.
PRINT
REM *** Communication Port Initial & Open ***
REM Port 1,9600Bps,No parity,8 bit data,1 stop bit
OPEN COM1:9600,N,8,1 FOR RANDOM AS #1 LEN = 256
REM *** Input Command & Send Command ***
SendCmd:
INPUT Input Command =; SEND$
IF SEND$ = QUIT THEN GOTO ProgEnd
PRINT #1, STX$ + SEND$ + ETX$
REM ***...

Ð 100 Ð
Connector signals
VIDEO IN
SERIAL IN (DIGITAL) BNC ´ 2 Active through (Option)
Y,  PB, PR (ANALOG) BNC ´ 3
VIDEO IN BNC ´ 2Loop-through, 75W termination
switch provided
REF VIDEO IN BNC ´ 2Loop-through, 75W termination
switch provided
VIDEO OUT
SERIAL OUT (DIGITAL) BNC ´ 3 (Option)
Y,  PB, PR (ANALOG) BNC ´ 3
VIDEO OUT BNC ´ 3
AUDIO IN
SERIAL IN (DIGITAL) BNC ´ 2 (Option)
AUDIO IN (DIGITAL) XLR ´ 2 CH1/CH2, AES/EBU format
AUDIO IN (ANALOG) XLR ´ 2 CH1, CH2
CUE IN XLR ´ 1
TIME CODE IN XLR ´ 1...