Panasonic Aj D250 Operating Instructions Manual

							71
RS-232C
$Mode transition table
VTR STATUS
Return
command
STOPSTANDBY
OFFEJECT PLAY REW FFPLAY
PAUSERECREC
PAUSESHORT
PLAY
OSP± t±±±±±±±
EFE± ± t±±±±ttt
OEJ±±±±±±ttt
OPL±±t±±±ttt
ORW±±t±±±±±±
OFF± ± t±±±±±±
OPA± ± t±±±PLAYREC
PAUSERECREC
PAUSE
ORC± ± t±±±±±±
ORP± ± t±tt±±±
EINt t tttt±ttt
EADt t tttt±ttt
OAFt t tttt±ttt
OARt t tttt±ttt
OPR± ± t±±±±ttt
OSL± ± t±±±±ttt
OSF± ± t±±±±ttt
OSR± ± t±±±±ttt
Search
commands± ± t±±±±ttt

± ±
:Operation changes to the return command mode.
t t
:Error code ER001 is returned, and execution is disabled.
:The operation mode is maintained.
OPA command: The current operation mode may be replaced by another operation mode when the OPA command is issued.
Search commands: OPT, SCP, SCS, SMS, SPT, SRS, SUBAUTO
BACKSEARCH
±±
t±
t±
±±
±±
REC±
±±
±t
t± tt
tt
tt
tt
t±
t±
t±
t±
t± 
						

							72
RS-232C
$Mode transition table
VTR STATUS
Return
command
STILLVIDEO
INSERTVIDEO
INSERT
PAUSEAUDIO
INSERTAUDIO
INSERT
PAUSEA/V
INSERTA/V INSERT
PAUSE
OSP±±±±±±±
OEJ±tttttt
OPL±tttttt
ORW±tttttt
OFF±tttttt
OPAPLAYPLAY
PAUSEVIDEO
INSERTPLAY
PAUSEAUDIO
INSERTPLAY
PAUSEA/V INSERT
ORC±tttttt
ORP±tttttt
EFE±tttttt
EIN±ttA/V INSERT
PAUSEt
EAD±tA/V INSERT
PAUSEtt
OAFttttttt
OARttttttt
OPR±tttttt
OSL±tttttt
OSF±tttttt
OSR±tttttt

± ±
:Operation changes to the return command mode.
t t
:Error code ER001 is returned, and execution is disabled.
:The operation mode is maintained.
OPA command: The current operation mode may be replaced by another operation mode when the OPA command is issued.
Search commands: OPT, SCP, SCS, SMS, SPT, SRS, SUB
Search
commands±ttttt
FIRST
EDIT
±
t
t
t
t
t
t
t
t t
t
t
t
t
t
t
t
t
Processing
Search Command
(Cue Up, etc.)
±
±
t
t
t
t
t
t
t t
t
t
t
t
t
t
t
t t 
						

							73
RS-232C
$Send command intervals
The AJ-D250 is a multi-microcomputer VTR.  For
this reason, it takes time (approx. 150 ms) for
communication to be performed between the RS-
232C interface microcomputer and system control
microcomputer inside the VTR before any
processing can be performed by the system control
microcomputer inside the VTR.
Therefore, leave an interval of at least 150 ms
before sending a command from the computer.Commands which can be accepted
OQ (query) commands
OOSP command (STOP)
OOEJ command (EJECT)
Error code ER001 is returned when a command
other than one which can be accepted is sent.OPT, SCP, SCS, SMS, SPT, SRS, SUB, EFE
(5) Checkpoints for RS-232C communication
$Send commands and data returned from the
VTR
1. If the LOCAL/MENU/REMOTE switch on the
front panel is not at the REMOTE position, it is
not possible to exercise proper control using the
RS-232C interface.
If any command except a Q (query) command is
sent while this switch is not at the REMOTE
position, error code ER001 is returned.
2. After one of the following commands is sent, not
all commands can be accepted until the
processing of the sent command is completed. 
						

							74
Error Messages
When a problem has occurred in the unit, one of the following error messages will appear on the tape
counter.
Error No. Description
— d — Condensation (dew) has formed.
E— 00
E— 01
E— 11
E— 21Four or more 4 seconds have elapsed after the
cassette was inserted but the cassette is not
lowered down inside the unit.
Alternatively, 4 or more seconds have elapsed after
the eject operation was initiated but the cassette is
not ejected.
E
— 31The loading operation is not completed within 4
seconds.
E— 32The unloading operation is not completed within 4
seconds.
E— 41The FG signal (rotational speed signal) is not output
from the cylinder motor.
E — 42The PG signal (phase signal) is not output from the
cylinder motor.
E— 43 The cylinder motor speed is abnormally high.
E— 44 The cylinder motor speed is abnormally low.E
— 51The FG signal (rotational speed signal) is not output
from the capstan motor.
E— 52 The capstan motor speed is abnormally high. Error No. Description
E— 66The start or end processing operation fails to be
completed even after 7 or more seconds have
elapsed.
E— 67A communication error between SERVO and
AVSYS.  Errors in the data.
E— 68A communication error between SERVO and
AVSYS.  The data is fixed at high or low.
E— 69A problem in communication between SERVO and
AVSYS when the power was switched on.
E— 70
The reel base which operates in line with the size of
the tape has been locked for 2.5 or more seconds.E
— 53 The capstan motor speed is abnormally low.
E
— 61 The supply (S) reel motor is locked.
E— 62 The take-up (T) reel motor is locked.
E— 63 The supply reel motor speed is abnormally high.
E— 64 The take-up reel motor speed is abnormally low.
E— 65 Abnormal tension has been detected.
E— 09Appears when the servo fails to lock for 3 or more
seconds. 
When T&S&R is selected as the setup menu item
No.001 setting, “SERVO NOT LOCKED” is
displayed on the third line (line where the remaining
tape amount is indicated) of the monitor screen.
Appears when there is no head output for one or
more seconds (due to clogging, etc.).  
“L” is displayed on the first line (counter line) of the
monitor screen.
When T&S&R is selected as the setup menu item
No.001 setting, “LOW RF” is displayed on the third
line (line where the remaining tape amount is
indicated) of the monitor screen.
Appears when a blank area on the tape has been
detected.
“N” is displayed on the first line (counter line) of the
monitor screen.
When T&S&R is selected as the setup menu item
No.001 setting, “NO RF” is displayed on the third
line (line where the remaining tape amount is
indicated) of the monitor screen.
When all the following conditions are met, the part of
the tape is recognized as a blank.
ONo output from any of the heads
OPlayback data cannot be read
ONo CTL signal
The fan motor has stopped.
“S” is displayed on the first line (counter line) of the
monitor screen.
When T&S&R is selected as the setup menu item
No.001 setting, “FAN STOP” is displayed on the
third line (line where the remaining tape amount is
indicated) of the monitor screen.
When about an hour elapses, the unit is shut down
automatically. E
— 6BThis appears when there is a communication error
between IF and AVSYS. There is a problem with the
internal reference or external reference.
E— 72 There is a problem in the solenoid drive circuit.
E— 73There is a problem in the cleaning solenoid drive
circuit. 
						

							75
2
3
4
34 1
5
Emergency Eject
Procedure for removing the tape manually in an emergency
Use the procedure below to remove the cassette tape if it can not be removed even when the EJECT button is
pressed.
OBefore proceeding to eject the tape manually, you must first turn off the power to the unit.
1
Remove the top panel.
2
Use a Phillips head screwdriver to push in and turn
the red plastic screw part counterclockwise.  
(This screw needs to be rotated about 30 turns
before unloading can be started.)
3
Insert the take-up jig (packed with the unit) into the
tape ejection slot (on the mechanism side of the
VTR), and rotate the flange part (white gear) of the
supply reel in the take-up direction using the
rubber part of the take-up jig to take up the tape
slack.

Take care not to damage the tape in any way.4
Use the Phillips head screwdriver to push in and
turn the red plastic screw part counterclockwise
once more.  Again rotate the flange part of the
supply reel in the take-up direction to take up the
tape slack.
This two-step procedure needs to be repeated until
the tape is completely housed in the cassette case
(about 90 turns of the red plastic screw part).
5
Use the Phillips head screwdriver to turn the red
plastic screw part at the slot-in side clockwise to
eject the cassette tape.  
(This screw needs to be rotated through about 140
turns until the tape is ejected.)

Take care not to sandwich or catch the tape when
closing the cassette cover. 
						

							76
Video Head Cleaning
This unit is equipped with an auto head cleaning function which automatically reduces the
amount of dirt on the video heads.  However, in order to maximize the unit’s reliability, it is
recommended that the video heads be cleaned as and when appropriate.
For further details on  how to actually clean the heads, consult with one of our service
companies or with your dealer.
Condensation
Condensation is formed according to the same principle by which droplets of water form on the
window panes of heated rooms.  It forms in the unit when the unit or tape is moved to a location
with a significant difference in temperature or humidity.  It also forms when the unit has been
moved:
OTo a very humid location filled with steam or a room immediately after it has been heated up.
OSuddenly from an air-conditioned environment to a place with high temperature and humidity
levels.
When moving the unit to these types of locations, do not turn on the power immediately but
leave the unit standing and wait for about 10 minutes.  If condensation has formed inside the
unit, an error message (– d –) lights up on the counter display, and the cassette tape is
automatically ejected.
Leave the power on, and wait until the error message is cleared.
Maintenance
Before proceeding with maintenance, set the power switch to the OFF position, and disconnect
the unit from the power outlet: always remember to take hold of the molded part of the power
plug when doing this.
Use a soft cloth to clean the cabinet.  In the case of stubborn dirt, dilute some kitchen detergent,
soak a cloth in the solution, wring it out well, and now use it for cleaning.  After wiping up the dirt,
remove any remaining moisture with a dry cloth.
Do not use paint thinners or benzine. 
						

							77
Specifications
[GENERAL]
Supply voltage:120 V AC, 50 – 60 Hz
Power consumption:56 W
Ambient operating temperature:
41°F to 104°F (5°C to 40°C)
Ambient operating humidity:
35% to 80% (no condensation)
Weight:
14.3 lb (6.5 kg)
Dimensions (Wa
Ha
D):
8 
7/16˝a
5 1/4˝a
15 7/16˝ (214a
132a
391 mm)
Recording format:
DVCPRO format
Recording tracks
Digital video/audio
Time code: recorded in sub-code area
Digital audio: 2 channels
Cue signal: 1 track
Control (CTL): 1 track
Tape speed:
33.820 mm/sec.
Recording time:
184 minutes (when an AJ-5P92LP is used 
)
66 minutes (when an AJ-P66MP is used)
Tape used:
1/4˝ thin magnetic layer metal tapes
FF/REW time:
Less than 5 min. (using an AJ-5P92LP tape)
[VIDEO]
For AJ-5P92LP cassette tapes, use a VTR supporting
DVCPRO (25 Mbps) 184 minute tapes.
$Digital video
Sampling frequency:
Y: 13.5 MHz, P
B/PR: 3.375 MHz
Quantizing:
8 bits
Error correction:
Reed-Solomon product code
$Analog composite IN/OUT
Video band:
Y: 30 Hz to 4.5 MHz (0 ±1 dB)
Y/C delay:
Less than 20 ns
K factor:
Less than 2%
$Input connectors
Line input:
BNCa
1, 1.0 V
P-P, 75 ½
REF VIDEO input:
BNCa
1, 1.0 V
P-P, 75 ½
S-VIDEO:
4Pa
1,  Y: 1.0 V
P-P, 75 ½
C: 0.286 V
P-P, 75 ½(burst level)
$Output connectors
Line output:
BNCa
1, 1.0 V
P-P, 75 ½
Monitor output:
BNCa
1, 1.0 V
P-P, 75 ½
S-VIDEO:
4Pa
1,  Y: 1.0 V
P-P, 75 ½
C: 0.286 V
P-P, 75 ½(burst level) 
						

							78
Specifications
[AUDIO]
$Digital audio
Sampling frequency:
48 kHz
Quantizing:
16 bits
Frequency response:
20 Hz to 20 kHz (0 +1.0 dB, –2.0 dB)
Dynamic range:
More than 85 dB
(1 kHz, emphasis OFF, “A” weighted)
Distortion:
Less than 0.1%
(1 kHz, emphasis OFF, reference level)
Crosstalk:
Less than –80 dB (1 kHz, between 2 channels)
$Input connectors
Line input (CH1/CH2):
PHONOa
2, –8 dBV, 47 k½
$Output connectors
Line output (CH1/CH2):
PHONOa
4, –8 dBV, 1 k½
Headphones output:
M3 stereo, variable level (max. –32 dBV or
more), 8 ½
[OTHER INPUT/OUTPUT CONNECTORS]
RS-232C:
D-sub, 25 pins, RS-232C interface
Wired remote control:
M2 jack (simple remote control)
[DISPLAY TUBE]
Counter:
8 digits (CTL/TC/UB display switching, remaining
tape)
Audio level meter:
18 steps
Other:
REC/REC INH, REMOTE, WIDE, consumer-use
cassette insertion display, REPEAT, SERVO,
channel condition, cassette insertion display
Weight and dimensions shown are approximate.
Specifications are subject to change without notice. 
						

							PANASONIC BROADCAST & DIGITAL SYSTEMS COMPANY
DIVISION OF MATSUSHITA ELECTRIC CORPORATION OF AMERICA
Executive Office:
3330 Cahuenga Blvd W., Los Angeles, CA 90068   (323) 436-3500
EASTERN ZONE: 
One Panasonic Way 4E-7, Secaucus, NJ 07094   (201) 348-7621
Mid-Atlantic/New England:
One Panasonic Way 4E-7, Secaucus, NJ 07094   (201) 348-7621
Southeast Region:
1225 Northbrook Parkway, Ste 1-160, Suwanee, GA 30024   (770) 338-6835
Central Region:
1707 N Randall Road E1-C-1, Elgin, IL 60123   (847) 468-5200
WESTERN ZONE: 
3330 Cahuenga Blvd W., Los Angeles, CA 90068   (323) 436-3500
Dallas Region:
6226 Abington Way, Houston, TX 77008   (713) 802-2726
No. CA/Northwest Region:
5870 Stoneridge, #3, Pleasanton, CA 94588   (925) 416-5108
Government Marketing Department:
52 West Gude Drive, Rockville, MD 20850   (301) 738-3840
Panasonic Canada Inc.
5770 Ambler Drive, Mississauga, Ontario L4W 2T3   (905) 624-5010
Panasonic Sales Company
Division of Matsushita Electric of Puerto Rico Inc.
San Gabriel Industrial Park, 65th Infantry Ave., Km. 9.5, Carolina, Puerto Rico 00630   (787) 750-4300