JLCooper Electronics ES-450 Manuale utente
ES-450
9-Pin Machine Controller
Users Manual
ES-450 is a trademark of JLCooper Electronics.
All other brand names are the property of their respective owners.
ES-450 User’s Manual, First Edition
Part Number 932087
2001 JLCooper Electronics, 142 Arena Street, El Segundo, CA 90245 USA
1
Table of Contents
Table of Contents.......................................................................... 1
Description..................................................................................... 2
Setting up the ES-450.................................................................... 3
Controlling a machine................................................................. 3
Using with a Host Computer....................................................... 3
Controls.......................................................................................... 4
Jog/Shuttle Wheel....................................................................... 4
Transport Controls...................................................................... 4
Track Arming.............................................................................. 5
Editing Controls.......................................................................... 5
Timecode Window...................................................................... 7
Locate Functions......................................................................... 7
Direct Numeric Entry.................................................................. 8
Technical Reference...................................................................... 8
Electrical Interface...................................................................... 8
Troubleshooting.......................................................................... 9
Care and Service......................................................................... 9
2
Description
The ES-450 is a self-contained machine controller for professional
and semi-professional VTRs, audio decks and computer based
editing systems that support the industry standard Sony 9-pin
protocol. This is also known as Sony “P2” or RS-422 protocol.
ES-450 features include:
•Timecode display
•Genuine Sony Jog/Shuttle wheel
•Transport control
•Frame Bump forward and reverse
•Seven Locate points
•Remote Track arming
•Direct timecode entry
•Support for 24/25/29.97/30 frames per second
•Support for Drop and non-Drop timecode
3
Setting up the ES-450
The ES-450 can operate in either of two modes: as a stand-alone
master controller for VTRs and decks that respond to the Sony 9-
pin protocol or, as a slave device meant to be attached to a host
that directly supports the ES-450. See your system documentation
for details. As shipped from the factory, the ES-450 is normally
configured as a master controller.
Controlling a machine
As a master controller, the ES-450 requires little in the way of
setup to use it with a VTR or audio deck.
1. Connect the 9-pin D-sub connector from the
rear of the ES-450 to your machine or computer.
2. Connect the supplied power supply to the end
of the cable attached to the ES-450
Your machine must be set for remote operation. Please consult
your Operators Manual for details.
Using with a Host Computer
Using the ES-450 with a host computer requires the unit to be
changed to slave mode. To do so, you will need the following
tools: a 5/64" Allen wrench, a 3/16" hex driver, and a small flat-
blade screwdriver.
1. Remove the four Allen screws from the front.
2. Carefully remove the front panel from the bottom chassis.
3. On the small circuit board, remove the 8-pin IC, which is
inserted into U3 “To Mach.” socket, and move it to the "To
Host" socket. Make sure orientation is preserved.
4. Remove the jumper JB1.
(In case the unit might be changed back in the future, you
can re-plug in the jumper to only on pin of JB1.)
5. Reassemble the front panel to the bottom chassis.
4
Controls
The ES-450 was laid out in an ergonomic manner. It was designed
to be used by left- and right-handed operators. With the operators
hand resting on the Jog/Shuttle Wheel, the most commonly used
transport buttons are in easy reach.
Jog/Shuttle Wheel
The Jog/Shuttle Wheel has two modes. The mode can be changed
by simply pressing the wheel.
In the Shuttle Mode, the wheel has a detent in the center and at the
two extreme positions. In the center position, The ES-450 places
the machine into SHUTTLE STILL or PAUSE mode. As the
wheel is turned clockwise, the machine will start shuttling forward.
Conversely, as the wheel turned counterclockwise, the machine
will start shuttling in the reverse direction. The two arrow LEDs
indicate the direction the tape is moving. When both arrow LEDs
are illuminated, the machine is in SHUTTLE STILL or PAUSE
mode. Below are typical shuttle speeds from the center detent to
the extreme ends of rotation:
STILL 1/8x 1/4x 1/2x 1x 2x 3x 4x 5x 6x 10x 13x 16x
In the Jog Mode, the wheel turns freely without any detents or
stops. Turning the wheel clockwise moves the tape forward.
While turning the wheel counterclockwise moves the tape in the
reverse direction. The two arrow LEDs indicate the direction the
tape is moving. When the Jog wheel is not being turned, both
arrow LEDs will be off indicating that the machine is in JOG
STILL or PAUSE mode.
Transport Controls
The Transport Controls are positioned above the Jog/Shuttle
Wheel. These functions include: Stop, Play, Reverse Play, Fast
5
Forward and Rewind. Additionally, there is an Eject button in the
upper left hand corner of the front panel.
Typically, pressing the Stop button places the machine into STILL
or PAUSE mode so the operator can view the image on tape.
Pressing Fast Forward and Rewind place the machine into shuttle
forward and reverse respectively. These functions may be
implemented differently in your machine or editing software.
Track Arming
Above the Transport Controls are the Track Arming buttons, which
select tracks to be overwritten when the machine is placed in
Record. Pressing the ASM button will place the machine in to
Assemble mode where the video and audio tracks are written. To
insert new material over existing material, the Insert mode is used.
To initiate Insert mode, press the INS button and any tracks you
wish to record.
LEDs above the Track Arming buttons indicate the tracks that are
armed or being recorded on.
Record is initiated by pressing REC/SHIFT and F-PLAY.
Editing Controls
Located around the Jog/Shuttle Wheel are the Editing Controls.
At the top center just above the Jog/Shuttle Wheel is the
SHUTTLE SELECT button. The SHUTTLE SELECT button
allows the machine to return to a shuttle operation after it has been
interrupted by a STOP, FRAME+1, FRAME-1 or GOTO
command. The direction arrows indicate the direction of the
pending shuttle. In Jog Mode, this button has no effect.
On either side of the SHUTTLE SELECT button are the
FRAME+1 and FRAME-1 buttons. Pressing either of these
buttons will move the tape forward or backwards one frame. This
6
is performed by using the timecode sent to the ES-450 by the
machine. The ES-450 sends a locate that is incremented or
decremented by one frame.
Note:
If the machine does not use the timecode it sends out of the
remote connector as the locate reference, the machine will
locate to the wrong point. An example of this would be a
machine that sends VITC timecode to the remote, but uses
LTC to locate.
MARK IN and MARK OUT send Mark In and Mark Out
commands to the machine. These are used to set points used in
Preview and Autoedit operations.
The PREVIEW button sends a Preview command to the machine.
This allows the operator to preview an edit. Typically, this
command causes the machine to perform the following actions:
1. Locate to the Mark In point minus the pre roll
2. Enter Play mode
3. Switch to input monitor at the Mark In point
4. Revert to tape monitor at the Mark Out point
5. Stop the tape at the Mark Out point plus the post roll
The AUTOEDIT button sends an Auto Edit command. This
allows the operator to perform an edit with frame accuracy.
Typically, this command causes the machine to perform the
following actions:
1. Locate to the Mark In point minus the preroll
2. Enter Record Ready mode
3. Switch to Record mode at the Mark In point
4. Revert to Record Ready mode at the Mark Out point
5. Stop the tape at the Mark Out point plus the postroll
7
Timecode Window
The Timecode Window displays the timecode that the machine
sends via the 9-pin interface. This is usually the longitudinal
timecode of the media. Some machines will send timecode
derived from VITC, a dedicated timecode track or the control
track. The timecode is displayed in hours:minutes:seconds:frames
format. Drop frame timecode is indicated by a small dot or period
between “LTC” and the hours field.
LTC 01:25:36:12
Non-Drop frame timecode
LTC.01:25:36:12
Drop frame timecode
Locate Functions
The ES-450 can store up to seven locate points internally. These
locate points are stored as long as the unit is powered.
The locate buttons are secondary functions of the Editing Controls.
The locate buttons are identified below:
Mark In Locate 1
Preview Locate 2
Frame-1 Locate 3
Shuttle Select Locate 4
Frame+1 Locate 5
Autoedit Locate 6
Mark Out Locate 7
Locate points are set by pressing and holding REC/SHIFT then the
desired locate button. Locate points are recalled by pressing
GOTO then the desired locate button. Locate points are stored in
memory as long as the unit is powered.
8
Direct Numeric Entry
The ES-450 can also command the machine to locate to arbitrary
timecode position. This is initiated by pressing the GOTO button.
The display will show:
GoTo : : :
Using the Transport and Track Arming Buttons, key in the desired
timecode then press ENTER. The machine will immediately go to
the entered timecode.
Technical Reference
Electrical Interface
The ES-450 uses the EIA RS-422A protocol over a 9 pin D-Sub
connector. The pinout is listed in the table below:
1 Ground
2 Receive A
3 Transmit B
4 Ground (Transmit)
5 not used
6 Ground (Receive)
7 Receive B
8 Transmit A
9 Ground
The ES-450 sends data at 38.4 kbits/sec. The data format is 1 start
bit, 8 data bits, 1 stop bit and 1 parity bit. The parity is odd. That
is, the sum of the data bits and the parity bit is an odd number.
D7 + D6 + D5 + D4 + D3 + D2 + D1 + D0 + P = 1
Indice
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