Panasonic Aj D750_200dpi Operating Instructions Manual

							Digital Video Cassette Recorder
AJ-P
Operating Instructions 
						

							IMPORTANT
“Unauthorized recording of copyrighted televi-
sion programs, video tapes and other materials
may infringe the right of copyright owners and
be contrary to copyright laws.”
WARNING:
To reduce the risk of fire or shock hazard,
do not expose this equipment to rain or
moisture.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the products enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
CAUTION:
To reduce the risk of fire or shock hazard and
annoying interference, use the recommended
accessories only.
is the safety information.
Do not insert fingers or any objects into the video
cassette holder.
Avoid operating or leaving the unit near strong
magnetic fields. Be especially careful of large audio
speakers.
Avoid operating or storing the unit in an excessively
hot, cold, or damp environment as this may result in
damage both to the recorder and to the tape.
Do not spray any cleaner or wax directly on the unit.
If the unit is not going to be used for a length of time,
protect it from dirt and dust.
Do not leave a cassette in the recorder when not in
use.
Do not block the ventilation slots of the unit.
CAUTION:
TO REDUCE THE RISK OF FIRE OR
SHOCK HAZARD, REFER MOUNTING OF
THE OPTIONAL INTERFACE BOARD TO
AUTHORIZED SERVICE PERSONNEL.
FCC Note:
This device complies with Part 15 of the FCC Rules.
To assure continued compliance follow the attached
installation instructions and do not make any
unauthorized modifications.
This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful
interference when the equipment is operated in a
commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruc-
tion manual, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area is likely to cause harmful interference
in which case the user will be required to correct the
interference at his own expense.
Use this unit horizontally and do not place anything on
the top panel.
Cassette tape can be used only for one-side, one
direction recording. Two-way or two-track recordings
cannot be made.
Cassette tape can be used for either Color or Black &
White recording.
Do not attempt to disassemble the recorder.
There are no user serviceable parts inside.
If any liquid spills inside the recorder, have the recorder
examined for possible damage.
Refer any needed servicing to authorized service
personnel.
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							Contents
General and Features
Controls and their functions
Front panel
Front panel bottom section
Connector area
Connections
Connections when one unit is used
Connections when 2 units are used
Connections with editing controller
Connections for adjusting video output
(encoder output) signals
Tapes
Switching on the power/inserting the cassette
STOP/STAND BY mode
Recording
Playback
Jog/shuttle
Manual editing
Preroll
Automatic editing
Switch settings and adjustments
Selecting the editing mode
Entering the edit points
Checking the edit points
Modifying the edit points
Preview
Executing automatic editing
Review
Split editing
4
6
7
14
16
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Video output (encoder output)
signal adjustment
Setup (default settings)
Setup menus
System menu
Basic menu
Operation menu
Interface menu
Edit menu
Tape protect menu
Time Code menu
Video menu
Audio menu
Time code/user bit
Recording internal/external time codes
Reproducing the time code/user bit
Superimpose screen
Servo reference
Audio V Fade Function
Printed circuit board
Rack mounting
Connector signals
Head cleaning
Condensation
Specifications
Before operating this unit, check that all of its accessories are present and accounted for.
Power cord 1 pc
41
42
43
44
45
47
48
49
51
52
54
55
58
59
60
61
62
64
65
66
67
69
69
70
Option
AJ-YA750P component serial interface board
AJ-CS750P Cassette adaptor
AJ-MA34HP Rack mounting adaptor
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							General and Features
This unit is a digital video cassette recorder which uses 1/4-inch tapes.
It incorporates digital compression technology so that the deterioration in picture quality and
sound quality resulting from dubbing is significantly minimized compared with existing
analog systems.
Furthermore, since it has a compact 4U size and light weight, the unit can be carried around
or mounted in a 19-inch rack with ease.
The settings for the units setup can be performed interactively while viewing the screen
menus on the TV monitor, and editing functions include both assemble and insert editing.
Features
Compact size and light weight
This is a 4U size digital VTR. It can be mounted in a 19-inch rack with ease using the
optional rack-mounting adaptors (AJ-MA34HP).
Up to 123 minutes of recording
Two sizes of cassette tapes can be used with this unit: the news-gathering cassette (max.
63 minutes) and general purpose cassette (max. 123 minutes). The width of the tapes
measures 1/4 inch to achieve a compact design.
Compatibility with consumer products
Consumer cassette tapes shot with digital cameras available on the consumer market can
be played back on this unit using the optional cassette adaptor (AJ-CS750P).

Slow playback of consumer cassette tapes will not produce the smooth operation produced
by slow playback of DVCPRO cassette tapes.
Digital slow motion/jog
Digital slow-motion technology created originally by Panasonic enables noiseless images to
be played back from speeds ranging from still picture to approx. ±1/2 
× normal tape speed.

Some noise may occur when the slow motion speed is changed.
Time codes
This unit comes with a built-in time code generator (TCG)/time code reader (TCR). In
addition to the internal time code, time code facilities include external time code input as well
as recording of the input signal VITC code.
Multi-function input/output interfaces
Analog input/output
Component (Y, PB, PR) and composite signal input and output connectors are provided.
Serial digital input/output
Digital component interfacing complying with the SMPTE 259M-C/272M serial digital signal
standard is possible when the optional component serial interface board (AJ-YA750P) is
used.
AES/EBU audio input/output
Digital audio input and output connectors are provided.
9-pin (RS-422A)/(RS232C) remote
In addition to the standard 9-pin serial (RS-422A) connector, RS-232C and 25-pin parallel
connectors are also featured.
The RS-422A connector enables another VTR to be operated in parallel with the unit if a
looping connection is used for the two units.
2-channel high-sound-quality digital audio
Sound can be edited separately for two channels while channel mixing capabilities are also
available. One channel is provided for the analog cue track.
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							Features
(continued)Dial jog/shuttle
All playback is free of noise bars with jog operations performed when the variable range is
set to between –0.43 and 1 
× normal tape speed. Shuttle operations can be performed up
to 60X normal tape speed in both forward and reverse directions. Color images are well-
defined even during high-speed searches.
Automatic editing functions
Besides assembly and insert editing, can also be performed.
Menu-driven setup
The setup settings, which are conducted prior to operating the unit, are performed while
viewing the screen menus either on the unit’s display or a TV monitor.
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							Controls and their functions
Front panel
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POWER switch
When the ON side is pressed, the power is switched on, and the audio level and videolevel meters, counter display and INPUT SELECT display light up.
INPUT SELECT switches
These are used to select the video and audio input signals.

Each time the VIDEO button is pressed, the input video signal selection is switched in the
order of Y P
B PR, COMPOSITE, SERIAL IF and back to Y PB PR.

Each time the AUDIO button is pressed, the input audio signal selection is switched in the
order of ANALOG, AES/EBU, USER SET, SERIAL IF and back to ANALOG.
USER SET is a function for selecting two different input signals to be recorded on PCM
audio signal CH1 and CH2, and it is used in tandem with the on-screen menu. For instance, if USER SET is selected by INPUT SELECT and CH1=ANALOG, and
CH2=DIGI are selected on the on-screen menu, the analog input signal and digital input signal (AES/EBU and SERIAL IF) will be respectively recorded on channels 1 and 2 of
the PCM audio signals recorded on the tape.
INPUT SELECT display
The characters corresponding to the selected input signal light.

Y PB PR:Analog component video signal
CMPSIT:Analog composite video signal
SERIAL IF: Serial component digital video signal (SMPTE 259M-C/272M) (option)

ANALOG: Analog audio signal
AES/EBU: Digital audio signal
USER SET: Selection of audio signal to be recorded
SERIAL IF: Serial digital audio signal (SMPTE 259M-C/272M) (option)
Cassette insertion slot
The news-gathering cassette, general-purpose cassette and consumer cassette with
adaptor are inserted into this slot.
Consumer cassettes can be played back only.
EJECT button
When this is pressed, the tape is unloaded and several seconds later the cassette is automatically ejected. When the counter display indicates  “
CTL
”, the display is reset.
The lamp lights when the eject command is received.
Channel condition lamps
One of these lamps lights in accordance with the error rate status. (Green   amber  red)
Green: This lights when the error rates for the video and audio playback signals are
both acceptable.
Amber: This lights when the error rate for the video or audio playback signals has
deteriorated.
Red:The playback picture will remain normal even when this lamp lights.
This lights when the video or audio signals are subject to rectification or
interpolation.
AUTO OFF lamp
This lights when trouble has arisen in the deck ’
s operation.
-7- 
						

							Controls and their functions(continued)

PLAY button
Playback commences when this button is pressed.
Recording commences when the button is pressed together with the REC button; manual
editing commences when it is pressed together with the EDIT button during playback.
Pressing only the PLAY button during manual editing will cut out the editing and establish
the playback mode.
REC button
Recording commences when this button is pressed together with the PLAY button.
When it is pressed during playback, search*1), fast forward or rewind, EE mode images
and audio signals can be monitored for as long as it is kept depressed.
When it is pressed in the stop mode, EE mode images and sound can be monitored.
When the STOP button is pressed, the original picture and sound are restored.
STOP button
When this is pressed, the tape stops traveling, and if the TAPE/EE selector switch is at
TAPE, still pictures can be monitored.
The drum continues to rotate even in the stop mode, and the tape remains in close
contact with the drum. If the stop mode continues for more than a certain period of time, the unit automatically
switches to the standby OFF mode in order to protect the tape.
The stop mode is established immediately after a cassette has been inserted into the
unit.
FF button*2 )
The tape is fast forwarded when this is pressed.
REW button*2)
The tape is rewound when this is pressed.
EDIT button
For manual editing, press both this button and the PLAY button together during playback.
When the button is pressed in the stop mode, the input mode signals selected by the
ASSEMBLE or INSERT button can be monitored in the EE mode.
The original picture and sound are restored when the STOP button is pressed. When the button is pressed during playback, search*
1), fast forward or rewind, the input
signals can be monitored in the EE mode for as long as it is kept depressed.
SERVO lamp
This lights when the drum servo and capstan servo have locked.
REC INHIBIT lamp
This lights when the REC INHIBIT switch in the front panel bottom section is at ON or
when the accidental erasure prevention mode has been set for the cassette.
In this state, neither recording nor editing is possible.
*
1) No guarantee is made for the audio EE mode at tape speeds below the normal tape
speed.
*2) The FF/REW speed can be selected on the setup menu NO. 102 (FF, REW MAX), and it is set to the same speed.
-8 - 
						

							
STAND BY button
When this is pressed, the same tension as in the regular stop mode is applied to the tape,
and while the head drum continues to rotate, the button’s lamp lights to indicate that the
standby ON mode is established.
In the standby OFF mode, the half-loading mode is established.
When this button is pressed in the stop mode, the standby OFF mode is established, the
half-loading mode is established. The lamp in the button now goes off. When the unit
remains in the stop mode for longer than a predetermined period, the standby OFF mode
is automatically established in order to protect the tape.
When this button or the STOP button is pressed in the standby OFF mode, the standby
ON mode is established.
When a button other than the STOP button is pressed, the mode corresponding to the
button pressed is established.
On-screen settings are available for the transfer time to the standby OFF mode.
PLAYER/RECORDER buttons
These buttons are operated when editing operations are conducted using the unit as the
recorder and a VTR equipped with an RS-422A serial interface remote control connector
(9 pins). Neither button functions when the unit is used on its own.
PLAYER button: When this button is pressed, its lamp lights, and the player connected to
the unit can be operated by remote control. The unit’s editing and tape transport buttons
now control the player’s functions.
RECORDER button: When this button is pressed, its lamp lights, and the editing and tape
transport buttons control the recorder’s (= the units) functions.
TC/CTL switch
By pressing this switch, what appears on the counter display is changed between TC and
CTL.
When TC is selected, either the TC or UB value is displayed depending on the position
selected by the TC/UB switch.
TC/UB switch
This selector switch determines whether the value of TC or UB appears on the counter
display when the TC/CTL switch has been set to TC.
INT/EXT switch
INT:For using the built-in time code generator.
EXT:For using the time external code which is input from the time code input connector
or the video signal VITC. The selection is set at the menu.
TAPE/EE switch

TAPE: 
For outputting the signals played back from the tape.
EE:For outputting the input signals selected by the INPUT SELECT switch.

TAPE: 
For outputting the simultaneous playback signals.
EE:For outputting the input signals selected by the INPUT SELECT switch.
* The SETUP menu No.308 (CONFI EDIT) setting is required.
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							Controls and their functions (continued)

REMOTE/LOCAL switch
This switch is set when the unit is to be controlled from an external source using the
REMOTE connector, RS-232C connector or parallel connector.
REMOTE: Set to this position when controlling the unit by a device connected using the
9-pin REMOTE connector or RS-232C/parallel connector.
LOCAL:Set to this position when controlling the unit using the controls on its own
operation panel.
REMOTE lamp
This lights when the REMOTE/LOCAL switch has been set to the REMOTE position.
Search button
This button is pressed to establish the search mode.
When the search dial is set to the shuttle mode and turned to a particular position, and
this button is pressed, playback commences at the speed set by the search dial.
JOG/SHTL/SLOW lamps
These indicate the present status of the search dial and SHTL/SLOW switch.
JOG:This lights when the unit is in the JOG mode.
SHTL:This lights when the unit is in the SHTL mode.
SLOW:This lights when the unit is in the VAR (variable) mode.
SHTL/SLOW switch
This selector switch is set when the search dial is used for SHTL or SLOW applications.
REV/STILL/FWD lamps
One of these lamps lights depending on the operation of the search dial.
REV:This lights when the dial is turned counterclockwise and the tape travels in the
REV direction provided that the lamp in the search button has lighted.
STILL:This lights in the JOG mode while the dial is kept stationary, and the tape stops
traveling provided that the lamp in the search button has lighted.
It lights in the SHTL mode provided that the dial is at the STILL position.
FWD:This lights when the dial is turned clockwise, and the tape travels in the FWD
direction provided that the lamp in the search button has lighted.
Search dial
This is used to search for the edit points.
Each time it is pressed, the mode is alternately set to shuttle or jog, and one of the JOG,
SHTL and SLOW lamps lights. When the power has been turned on, the dial will not
function until it has first returned to the STILL position.
Shuttle mode: When the dial is turned and stopped at a particular position while the
SHTL/SLOW switch is at SHTL, the tape can be played back at the
speed corresponding to the dial’s rotary angle position. A still picture
appears at the dial’s center position.
Jog mode:
When the dial is turned all the way counterclockwise with the
SHTL/SLOW switch at SLOW, the tape speed is set to –4 
× normal
speed, when it is set to the center position, a still picture is produced, and
when it is turned all the way clockwise, the tape speed is set to +4 
×
normal speed. The speed for SLOW can be set using set-up menu No.
300 (VAR RANGE).
The dial clickstops are cleared, and the tape is played back at the speed
(–1/2 
× to +1 × normal speed) corresponding to the speed at which the
dial is turned.
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