Doremi Labs V1-400 Series User manual

Doremi Labs, Inc.
306 E. Alameda Avenue, Burbank, CA 91502
USA
V1
User's Manual
Version 4.08
(09/01)
For use with V1 - 400 series
(Serial# 4000 and above)

2
TABLE OF CONTENTS
WARRANTY............................................................................................................................... 5
WARNING................................................................................................................................... 6
AVIS ............................................................................................................................................. 6
PROTECTING YOURSELF AND THE V1............................................................................ 6
CE NOTICE ................................................................................................................................ 8
INTRODUCTION....................................................................................................................... 9
1SETUP GUIDE.................................................................................................................. 11
1.1 QUICK START GUIDE .................................................................................................. 11
1.2 INSTRUCTIONS FOR INITIAL SETUP & TRANSPORT IMPORTANT!!............ 12
REMOVE THE SCSI TERMINATION ON REAR (LEAVING IT MAY BREAK THE SCSI CONNECTOR DURING
TRANSPORT). ............................................................................................................................. 12
1.3 SETUP OF TWO OR MORE DRIVES USING SINGLE FILE SYSTEM................................ 12
1.4 SETUP OF TWO OR MORE DRIVES USING MULTI FILE SYSTEM ................................... 12
2FRONT PANEL DESCRIPTION.................................................................................... 13
2.1 SCSI DRIVES............................................................................................................... 13
2.2 LCD TIME CODE DISPLAY.......................................................................................... 13
2.3 NUMERIC KEYPAD ...................................................................................................... 14
2.4 TRANSPORT CONTROLS .............................................................................................. 14
2.5 FUNCTION KEYS.......................................................................................................... 14
3REAR PANEL CONNECTIONS.................................................................................... 16
3.1 HARDWARE SETUP OF THE MIDI AND BI-PHASE INPUT................................ 19
3.2 THE GPIO OPTION CARD............................................................................................ 19
4MENU SELECTIONS...................................................................................................... 21
4.1 STANDARD MENU ....................................................................................................... 21
4.2 OPTIONS MENU........................................................................................................... 25
5RECORDING & PLAYBACK ........................................................................................ 32
5.1 RECORDING................................................................................................................. 32
5.1.1 STANDARD (CRASH) RECORDING PROCEDURE......................................... 32
5.1.2 OVERDUBBING VIDEO & AUDIO TRACKS ................................................... 32
5.1.3 OVERDUBBING/INSERT OF VIDEO ONLY or AUDIO ONLY ....................... 32
5.1.4 TIME CODE OFFSET........................................................................................ 32
5.2 SPECIAL PLAYBACK FUNCTIONS....................................................................... 33
5.2.1 OPTION PLAY Command or Chase Command.................................................. 33
5.2.2 CHASE to LTC Time Code mode........................................................................ 33
5.2.3 CHASE to RS422 or Serial Time Code mode...................................................... 33
5.2.4 CHASE to BI-PHASE mode ................................................................................ 33
5.2.5 SEGMENT DEFINITION & PLAYBACK........................................................... 34
5.2.6 PLAY LIST & LOOPING .................................................................................... 34
5.2.7 REMAINING TIME OF A SEGMENT DURING PLAYBACK............................ 35
5.2.8 REVERSE PLAY.................................................................................................. 35
5.3 DELAYED PROGRAMMING................................................................................... 36
5.3.1 Introduction......................................................................................................... 36
5.3.2 Rear Panel Connection ....................................................................................... 36

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5.3.3 Preparing the units.............................................................................................. 36
5.3.3.1 The Recorder................................................................................................... 36
5.3.3.2 The Player........................................................................................................ 36
5.3.4 Preparing the drive ............................................................................................. 36
5.3.5 Running the system.............................................................................................. 37
5.3.6 Link2V1 utility:.................................................................................................... 37
5.4 SLOW MOTION ............................................................................................................ 38
5.4.1 Introduction......................................................................................................... 38
5.4.2 Rear Panel Connection ....................................................................................... 38
5.4.3 Preparing the units.............................................................................................. 38
5.4.3.1 The Recorder................................................................................................... 38
5.4.3.2 The Player........................................................................................................ 38
5.4.4 Preparing the drive ............................................................................................. 39
5.4.5 Running the system.............................................................................................. 39
5.4.6 Using a DNF ST-300 Slow Motion Controller:.................................................. 39
5.4.7 Link2V1 utility:.................................................................................................... 39
5.5 USING DISCONTINUOUS TIME CODE ON A DRIVE......................................... 40
5.5.1 INCREASING TIME CODE................................................................................ 40
5.5.2 NON INCREASING TIME CODE....................................................................... 40
5.5.3 REPEATING TIME CODE ................................................................................. 40
6CONTROLLING THE V1 FROM A PC OR MAC...................................................... 41
7UPGRADING THE V1 FIRMWARE............................................................................. 42
8WIRING DIAGRAMS AND PINOUTS ......................................................................... 43
8.1 WIRING OF THE V1 RS422-PC CABLE ....................................................................... 43
8.2 WIRING OF THE V1 RS422-MAC CABLE .................................................................... 44
8.3 WIRING OF THE STANDARD RS422 CABLE ................................................................ 45
8.4 WIRING OF THE RS422 CHASE CABLE........................................................................ 46
8.5 GPIO CONNECTOR PINOUT ........................................................................................ 47
8.6 MIDI
AND BIPHASE CONNECTOR PINOUT: ................................................................ 47
9DISK RECORD TIMES FOR VARIOUS COMPRESSION RATIOS....................... 48
9.1 NTSC M-JPEG COMPRESSION CHART ACCORDING TO CCIR-601........................... 48
9.2 PAL M-JPEG COMPRESSION CHART ACCORDING TO CCIR-601.............................. 49
9.3 MPEG2 COMPRESSION - NTSC CHART AT 720X480 ................................................ 50
9.4 MPEG2 COMPRESSION – PAL CHART AT 720X480 .................................................. 50
9.5 STANDARD DEFINITION UNCOMPRESSED – PAL/NTSC............................................ 51
9.6 HIGH DEFINITION UNCOMPRESSED............................................................................ 51
10 USING THE RCV9P-V1 REMOTE CONTROL ...................................................... 52
11 APPLICATION AND TROUBLESHOOTING INFORMATION.......................... 53
11.1 UNABLE TO CONTROL V1 REMOTELY ........................................................................ 53
11.2 QUICK TOGGLE BETWEEN SHUTTLE & JOG MODES ............................................... 53
11.3 RECORDING IN CASE OF TAPE DROP-OUT.................................................................... 53
11.4 V1 IDENTIFICATION FOR DAW ON THE RS422 PORT .................................................. 53
11.5 THE UNIT IS NOT PLAYING SMOOTHLY IN REVERSE PLAY ......................................... 53
11.6 MODES OF OPERATION WITH MULTIPLES DRIVES ...................................................... 53
11.7 THE VIDEO HAS NO COLORS ....................................................................................... 53
11.8 NO AUDIO FROM INPUT MONITOR.............................................................................. 54
11.9 UNABLE TO WRITE TO ACTIVE DRIVE......................................................................... 54
12 CONNECTING V1 TO AUDIO WORKSATIONS & EDIT CONTROLLERS.... 55

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12.1 CONNECTION TO THE DAWN WORKSTATION (V 4.3C OR LATER) ............................ 55
12.2 CONNECTION TO THE AKAI DD-1500 WITH RS422 CONTROL (RECOMMENDED)..... 55
12.3 CONNECTION TO THE AKAI DD-1500 IN CHASE RS422 MODE............................... 55
12.4 CONNECTION TO THE FAIRLIGHT ............................................................................... 56
12.5 CONNECTION TO THE MICROLYNX, THE LYNX 1 AND LYNX 2 SYNCHRONIZERS..... 56
12.6 CONNECTION TO THE SONIC SOLUTIONS ................................................................... 56
12.7 CONNECTION TO THE PRO-TOOLS 4.0........................................................................ 56
12.8 CONNECTION TO THE ORBAN AUDICY VX.............................................................. 57
12.9 CONNECTION TO THE DYAXIS II................................................................................. 57
12.10 MOST COMMON CONNECTION ............................................................................... 57
12.11 LIST OF DAWS & EDITORS CURRENTLY SUPPORTED BY THE V1(*) ...................... 58
12.12 USING THE V1 WITH EDIT CONTROLLERS ............................................................. 58
13 INSTALLING SCSI DRIVES...................................................................................... 60
13.1 V1
AND REMOVABLE SCSI DRIVES............................................................................ 60
13.2 IMPORTANT NOTE ABOUT USING JAZ DRIVES............................................................ 60
13.3 MOUNTING DATA-EXPRESS ON ALL JPEG PRODUCTS EXCEPT V1BX2..................... 61
13.4 MOUNTING DATA-EXPRESS ON THE V1BX2 WITHOUT DRIVE SHARING................... 62
13.5 MOUNTING DATA-EXPRESS ON THE V1BX2 SHARING A DRIVE ................................ 62
13.6 MOUNTING DATA-EXPRESS ON THE V1U.................................................................. 62
13.7 MOUNTING DATA-EXPRESS ON THE V1MP2............................................................. 62
13.8 SETUP OF THE SEAGATE ULTRA SCSI HARD DRIVES................................................. 63
13.9 SETUP OF THE MAGNETO-OPTICAL DRIVE (MOD) NIKON BELUGA DD53.......... 64

5
WARRANTY
Doremi’s warranty obligations are limited to the terms set forth below:
Doremi Labs, Inc. (“Doremi”) warrants this hardware product against defects in materials and
workmanship for a period of ONE (1) YEAR from the date of original retail purchase.
If you discover a defect, Doremi will, at its option, repair, replace, or refund the purchase price of this
product at no charge to you, provided you return it during the warranty period, with transportation
charges prepaid, to the authorized Doremi distributor from whom you purchased it or to any other
authorized Doremi distributor within the country of original retail purchase. (You can obtain additional
information by contacting Doremi at the address printed on this certificate). To each product returned for
warranty service, please attach your name, address, telephone number, and a copy of the bill of sale
bearing the appropriate Doremi serial numbers as proof of date of the original retail purchase.
If your product fails during the warranty period while you are out of the country of original retail
purchase, you may have it repaired (no refunds or replacements are provided) at your expense by an
authorized Doremi distributor in the country in which the product failed. You may obtain a refund for the
repair costs by submitting a claim to Doremi (instructions are obtained by contacting Doremi at the
address printed on this certificate).
This warranty applies only to hardware products manufactured by or for Doremi that can be identified by
the “V1” trademark, trade name, or logo affixed on them. Doremi software is warranted pursuant to a
separate written statement packed with the software. Doremi does not warrant any products that are not
Doremi products. Note that most third-party products have a manufacturers' warranty. This warranty
does not apply if the product has been damaged by accident, abuse, misuse, or misapplication; if the
product has been modified without the written permission of Doremi; or if any Doremi serial number has
been removed or defaced.
THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF
ALL OTHERS, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. DOREMI
SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT
LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. No Doremi distributor, agent, or employee is authorized to make any modification,
extension, or addition to this warranty.
DOREMI IS NOT RESPONSIBLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES RESULTING FROM ANY BREACH OF WARRANTY, OR UNDER ANY OTHER
LEGAL THEORY, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DOWNTIME,
GOODWILL, DAMAGE TO OR REPLACEMENT OF EQUIPMENT AND PROPERTY, AND ANY
COSTS OF RECOVERING, REPROGRAMMING, OR REPRODUCING ANY PROGRAM OR DATA
STORED IN OR USED WITH DOREMI PRODUCTS.
Doremi Labs, Inc.
306 E. Alameda Avenue.
Burbank, CA 91502

6
WARNING
THIS APPARATUS MUST BE EARTHED
IMPORTANT
WARNING
Power requirements for electrical equipment vary from area to area. Please ensure that your V1 meets the
power requirements in your area. If in doubt, consult a qualified electrician or Doremi Labs, Inc. dealer.
120VAC @60Hz for USA and CANADA rating 1A
220-230/240VAC @50Hz for Europe rating 0.5A
240VAC @50Hz for Australia rating 0.5A
AVIS
Le voltage peut differer d’un pays a l’autre. Il faut que le V1 soit ajuste au voltage du pays.
LA SOURCE DE PUISSANCE DOIT AVOIR UN CONDUCTEUR CONNECTE A LA TERRE.
Toutes reparations doient etre effectuees par une personne qualifiee.
AFIN D’EVITER UN CHOC ELECTRIQUE, VEUILLEZ NE PAS ENLEVER LE CAPOT.
PROTECTING YOURSELF AND THE V1
Never touch the AC plug with wet hands
Always disconnect the V1 from the power supply by pulling on the plug, not the cord.
Allow only a Doremi Labs, Inc. dealer or qualified professional engineer to repair or reassemble the V1.
Apart from voiding the warranty, unauthorized engineers might touch live internal parts and receive a
serious electric shock
Do not put, or allow anyone to put any object, especially metal objects into the V1
Use only an AC power supply. Never use a DC power supply.
If water or any other liquid is spilled into or onto the V1, disconnect the power, and call your dealer.
Make sure the unit is well ventilated, and away from direct sunlight.
To avoid damage to internal circuitry, as well as the external finish, keep the V1 away from sources of
direct heat (stoves, radiators, etc.).
Avoid using aerosol insecticides, etc. near the V1. They may damage the surface, and may ignite.
Do not use denatured alcohol, thinner or similar chemicals to clean the DR8. They will damage the
finish.
Modification of this equipment is dangerous, and can result in the functions of the V1 being impaired.
Never attempt to modify the equipment in any way.
In order to ensure optimum performance of your V1, select the setup location carefully, and make sure
the equipment is used properly. Avoid setting up the V1 in the following locations:
1. In a humid or dusty environment
2. In a room with poor ventilation
3. On a surface which is not horizontal
4. Inside a vehicle such as a car, where it will be subject to vibration
5. In an extremely hot or cold environment

7
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN !
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 the arrowhead symbol superimposed
across a graphical representation of a person, within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure; that may be
of sufficient ma
g
nitude to constitute a risk of electric shock.
!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.
WARNING!!
To prevent fire or shock hazard, do not expose this appliance to rain or moisture

8
CE NOTICE
Marking by the symbol indicates compliance of the device to the EMC (Electromagnetic
Compatibility) directive and to the Low Voltage directive of the European Community. Such marking is
indicative that this device meets or exceeds the following technical standard:
• EN 55022 "Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment."
A "Declaration of Conformity" in accordance with the above standard has been made and is on file at
Doremi Labs, Europe, Valbonne, France.

9
INTRODUCTION
Thank you for your V1 purchase. The V1 is a random access digital disk recorder that uses
magnetic drives (hard drives) as a recording medium.
To record video on a hard drive it should be digitized which means that the analog video
information must be converted to a digital data stream. Every NTSC video frame contains 525
lines that have 858 pixels each, however, only 480 lines with 720 pixels each are used to hold
picture information.
The table below indicates the bit rate standard definition (SD) and high definition (HD) video
without the use of compression.
Resolution 8 bit encoding 8 bit encoding 10 bit encoding 10 bit encoding
Mbits/sec MBytes/sec Mbits/sec MBytes/sec
SD 720x480 (NTSC) 166 20.7 207 25.89
SD 720x576 (PAL) 166 20.7 207 25.89
HD 1920x1080x60Hz 995 124.4 1244 155.5
HD 1920x1080x59.94Hz 994 124.3 1243 155.4
HD 1920x1080x50Hz 829 103.7 1037 129.6
HD 1920x1080x30P 995 124.4 1244 155.5
HD 1920x1080x25P 829 103.7 1037 129.6
HD 1920x1080x24P 796 99.5 995 124.4
HD 1280x760x60P 934 116.7 1167 145.9
HD 1280x760x50P* 778 97.3 973 121.6
*Not implemented.
The V1 line of products covers uncompressed video recorders (8 and 10 bit encoding) for the
highest quality possible and compressed video recorders (8 bit encoding) for applications that do
not require highest quality. When using compression, the trade off is between storage
requirement and video quality.
V1 Uncompressed
The V1-U series records the video directly on the hard drive without the use of compression.
(V1-U for standard definition video and the V1-UHD for HDTV video).
V1 Compress Video ( JPEG vs MPEG2 )
Doremi’s V1 product line includes models that use motion JPEG compression (the V1, V1m,
V1d, and V1bx2) and MPEG2 compression (V1-MP2).
Motion JPEG consists of compressing every field of video and saving the data on the drive.
MPEG2 compresses only a few frames/sec called I frames and then recording the motion
between each new frame and the I frame. MPEG2 compression requires very sophisticated
techniques but yields a better transfer rate than JPEG for the same video quality. Since the price
of the media is going down day after day, the MJPEG solution is still the most viable solution for
a lot of applications. MPEG2 will yield a better quality when recording on DVD-RAM drives
and larger servers can be built with MPEG2 units. MPEG2 also offers higher image quality than
MJPEG.
The CBS algorithm
The V1 uses a constant block size (CBS) algorithm. With traditional compression algorithms,
depending on video complexity, the size of each compression field can vary thus requiring

10
maintaining a list to indicate the start of each field on the drive. With CBS all fields have the
same maximum size. Consequently, CBS does not require maintaining a list indicating the start
of each field because they are all the same size. This results in a more reliable disk recorder with
faster video access and frame accurate recording.
Audio and Time Code
In addition to the video, and regardless of the compression ratio used, the V1 records 0, 2, 4, 6 or
8 tracks of uncompressed audio (sampled at 48Khz). Each audio sample is coded on 2 bytes
(2*2*48000= 192 KB/s) and every field of time code is sampled on 80 bytes (29.97*2*80= 4.795
KB/s for 2 channels in NTSC and 25*2*6= 4 KB/s for 2 channels in PAL). The V1 can also
record up to 8 channels of AES/EBU digital audio.
Hopefully this introduction has explained to the reader the basic technical principles of digital
disk recording.

11
1 Setup Guide
1.1 Quick Start Guide
For more information about the bold letters, refer to Chapter 4 there you will find every Menu and
Option Menu command listed and explained. Note V1-U and V1-UHD drives are pre-installed at the
factory. See section 1.4 for setup information.
This quick start guide assumes the most common hardware setup: Single video channel V1 equipped with
a removable hard drive using the Kingston Data Express drive carrier and receiver. If you purchased your
Kingston and SCSI drive from Doremi, your V1 has been setup at the factory.
1. Plug the hard drive carrier in the Data Express receiver and turn the key counter clockwise until it
locks
2. Power the unit ON by flipping the switch to the ON position. If you keep watching the LCD display
on the RCV1 or VToolsPro, you will see a “Scanning” message displayed for about 30 to 60 seconds
(the time it takes for the hard drive to be mounted)
i. The “Scanning” message should now disappear and you should get one of the
following:
1. A message saying “No MD Present” alternating with “Scanning”. This
means that this is the first time this drive is mounted on a V1 unit. If you
want to start using the drive:
a. Go to Option Menu 30 and select SINGLE FILE.
b. Set DISK-1 ID to the SCSI ID of the drive installed.
c. Set STRIPE ON to 1.
d. Set #RAIDSET to 1.
e. Go to MENU 7 and Initialize. In about 1 minute, the “initialize”
message should disappear and you can start using the unit.
2. No message other than the Time Code and the Stop. This means that the
drive is recognized as a V1 drive and is ready to be used.
ii. If you keep watching the LCD display on the front panel or VToolsPro and you don’t
see the any messages alternating, press the Menu button. If the menu disappears and
you don’t get a response, the V1 itself has a problem starting up. Contact Doremi
Labs’ Tech Support.
3. Plug a valid video source on the composite input of the V1.
4. Plug a working monitor on the composite out of the V1
5. Go to the Sync Source Menu and select your sync source.
6. Go to the Menu and make sure Input Source is set to Composite
7. Go to Option Menu 3 (Video), press the Toggle Key until you reach the Pattern Sub-menu, then
press the ++ key to set the Pattern ON. This should display a pattern on your monitor. Press the ++
key again to set the Pattern OFF, then hit Escape.
8. If you have something recorded on the disk, it will be displayed on the monitor and hitting the Rec
button should set the unit in EE mode.
9. If you see a valid video signal on your monitor, you can press Rec and Play at the same time to start
recording on the V1
10. Hit Stop to finish the recording

12
1.2 INSTRUCTIONS FOR INITIAL SETUP & TRANSPORT IMPORTANT!!
♦ Before powering-up the V1 unit, please connect the SCSI termination supplied on the rear
external SCSI connector (If not there, the V1 will not operate properly).
♦ After powering-up, if your V1 has been ordered with a drive from Doremi Labs, you will be able to
play the initial "video test" recording (In NTSC for USA, PAL for Europe) without the need of an
external sync reference (Internal Sync. selected). If you need to play locked to House Sync, connect
a Black Burst signal to the SYNC IN connector and go to menu (02) "Sync from", select the option
Sync In and validate by pressing ESC.
♦ Before any transport :
♦ Lock the Data-Express (Key ON as for normal use).
♦ Switch the V1 OFF.
Remove the SCSI termination on rear (Leaving it may break the SCSI connector during transport).
1.3 Setup of two or more drives using SINGLE file system
♦ Make sure the two drives are on consecutive SCSI ID numbers i.e., 3 and 4.
♦ Power up the first drive on ID4 (Turn on the key of the Data Express)
♦ Set the compression ratio to the desired value.
♦ Initialize the drive.
♦ Power up the second drive on ID3 and wait for about 1 minute.
♦ Go to Option menu 30 and set the “Disk-1 ID” parameter to 3.
♦ Initialize the drive.
♦ Use Menu 4 to issue a mount command. The time left in Menu 10 should reflect the total time from
both drives
♦ Record. The V1 will start recording on the drive with the higher SCSI ID number and will continue
on the lower ID number. The jump from drive to drive is not noticeable.
This procedure can also be used to record on more than two drives with consecutive SCSI ID
numbers. As described above, each drive must first be initialized alone using the same compression ratio
for all drives, then all drives should be powered-up and initialized together. Use the Mount menu
command to mount all drives, if needed, before initializing them.
1.4 Setup of two or more drives using Multi file system
♦ Make sure the two drives are on consecutive SCSI ID numbers i.e., 1 and 2.
♦ Power up all drives (Turn on the key of the Data Express)
♦ Go to Option Menu 30 and set it to: “Multi File”, “Disk-1 on:”=1, “Stripe on:”=2, “#RAIDSET:”=1
♦ Initialize.
♦ The time left in Menu 10 should reflect the total time from both drives
♦ Record. The V1 will record across all drives at the same time.
This procedure can also be used to record on more than two drives with consecutive SCSI ID
numbers. As described above, each drive must first be initialized alone using the same compression ratio
for all drives, then all drives should be powered-up and initialized together. Use the Mount menu
command to mount all drives, if needed, before initializing them.

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2 FRONT PANEL DESCRIPTION
The V1 front panel contains a space for two (3 1/2") half-height SCSI drives or 3 (3 1/2") Low Profile
SCSI drives, transport control keys, function keys, a jog/shuttle wheel and a numeric keypad.
2.1 SCSI Drives
The V1 is shipped with a choice of standard SCSI storage devices: 3 1/2" half-height or low-profile (LP)
hard drives mounted internally inside the V1 or in a removable tray (Data-Express).
When mounted in a removable tray, hard drives can be removed (or installed) while the V1 is on-line
(without the need to shut the unit off). To remove (or install) a drive, insert the supplied drive key into
the key slot on the receiver below the lit SCSI ID number and turn it clockwise (or counter-clockwise).
When removing a drive, turning the key clockwise will unlock the drive and cut power off from it
causing it to spin down. Before removing a drive, wait until it has completely finished spinning
down. This will usually take about 30 to 40 seconds depending on the drive. The Data Express receiver
inside the V1 sets the SCSI ID. All V1 internal drives should not be terminated. the external SCSI
termination supplied with the V1 should be mounted before powering up.
Additional SCSI drives can be added to the V1 rear panel SCSI connector. All drives on the external
chain should not be terminated except for the last drive in the chain which should be terminated. When
no drives are connected externally, connect the supplied SCSI terminator to the SCSI connector on the
back of the V1.
DO NOT USE THE SCSI ID ASSIGNED FOR THE V1 IN OPTION MENU 17 FOR ANY OF
THE DRIVES CONNECTED TO THE V1.
2.2 LCD Time Code Display
The first line of the Time Code display shows the time location of the video material using the following
format: “HH:MM:SS:FF F1/F2”where "HH" represent the hours from 00 to 23, "MM" represent the
minutes from 00 to 59, "SS" represents the seconds from 00 to 59, "FF" represents the frames from 00 to
24 in PAL and 00 to 29 in NTSC, "F1/F2" represent the field: "F1" for odd fields and "F2" for even
fields. This display will show either Absolute Time or Time Code depending upon what the user has
selected in the "Time Mode" (01) Menu. The display also shows field information; “.” Means field 1 and
“:” is field 2 NonDrop or “;” is field 2 DROP frame.
In addition to the audio input levels the second line displays the following:
♦ At the V1 start-up, the bottom left displays the version of the V1 software installed on the flash
EPROM (example, V2.0 when version 1.20 is installed), then No Disk and Scanning messages will
alternate on the left side and Stop is displayed on the right side until a valid drive is recognized on the
SCSI bus of the V1, in such case No Disk will disappear and only Stop will be displayed indicating
that the V1 is now ready to access the drive. If No Disk/Scanning is still displayed even though a disk
was mounted, the V1 did not recognize the disk. Check for SCSI ID conflict or check the MD settings
in Option Menu 30.
♦ During transport controls, the current operation is shown on the right side of the display: PLAY,
STOP, REWIND, FORWARD, RECORD, JOG, SHUTTLE, VAR..
("VAR" is indicated during play in chase on LTC/MTC or in variable speed from RS422)
♦ During shuttle movement, the shuttle speed is shown as :
If forward shuttle : ">> xx %" with xx % = 10%, 20%, 48%, 100%, 200%, 500%, 1000%
If reverse shuttle : "<< xx %" with xx % = 10%, 20%, 48%, 100%, 200%, 500%, 1000%

14
♦ During segment playback, the remaining time up to the OUT point is shown as "ssss : MM.SS",
where "sss" is the number of the segment played from 001 to 2047, "MM.SS" is the remaining time
up to the OUT point of the segment played in mn:sec
♦ During formatting, the message Formatting... is shown. During initialize, the message Initialize is
shown. During drive copy, the message Copying... is shown, once done, Copy Complete is shown
and if source drive has invalid recording, Bad Segment or Copy aborted is shown.
♦ During the drives mounting (insert) and un-mounting (eject), the message No disk is displayed.
2.3 Numeric Keypad
This keypad is used to enter numeric data such as time code addresses, in and out points, locate points,
etc. To enter data, simply begin typing the numbers and the display will automatically overwrite. To
abort an operation, press the ESC (escape) key. The display will revert to its previous setting. The BKSP
(Backspace) key can be used to correct typing errors.
2.4 Transport Controls
The V1 standard tape-style transport controls are:
REW Rewind control button with a speed of 40 times normal. When the
rewind is close to the beginning of the recording, the speed is slowed
down to normal until it reaches the start.
FF Fast forward control button with a speed of 40 times normal. When the
fast forward is close to the end of the recording, the speed is slowed
down to normal until it reaches the end.
PLAY Play control button. If the active drive has recorded material, pressing
the PLAY key will start playback from the current location at normal
speed and the green LED will go ON.
STOP Stop control button. The STOP key will cause the V1 to stop any
transport control (Play, record, rewind, fast forward).
REC Record control button. This key is used in several ways described later
in this menu.
2.5 Function Keys
MENU Pressing this key will engage the menu mode. Pressing the MENU key
again will return the V1 to the time code display mode. (You may also
press ESC.) all settings are saved.
ARROW UP Use this key (!) to scroll to the next menu.
ARROW DOWN Use this key (") to scroll to the previous menu.
TOGGLE/SELECT Use this key (Double arrow, !
!!
!) to change selections within most
menus.
WHEEL This key activates the Jog/Shuttle wheel. When active, the amber LED
above the button will go ON. Pressing the key while active will toggle
between jog and shuttle :
♦ In Jog mode, the rotation of the wheel will generate "Jog" steps in
forward or reverse.

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♦ In Shuttle mode, the angle of the wheel from its initial position will
control the shuttle speed with 7 different values in each direction :
10%, 20%, 48%, 100%, 200%, 500%, 1000% in >> or <<. The
value used and the direction (">>", "<<") is displayed on the bottom
line of the LCD during the shuttle operation.
NUDGE BACK (--) Locates one field back from the current position. Also used for selection
in the "Edit Preset" and "Set Video" Optional Menu selections.
NUDGE FORWARD (++) Locates one field ahead of the current position. Also used for selection
in the "Edit Preset" and "Set Video" Optional Menu selections.
IN Sets the IN point for segment play. (See Section 5.2.5, "Segment
Definition and Playback").
OUT Sets the OUT point for segment play. (See Section 5.2.5, "Segment
Definition and Playback").
GOTO To locate to a specific frame (field) from the V1 front panel, enter the
time code location numbers from the numeric keypad and press GOTO
when finished.
ESC This is the escape key. Press it when you want to exit the menu modes or
abort an operation.
RCL Used to recall a segment number. (See Section 5.2.5, "Segment
Definition and Playback").
SAVE Used to save a segment into a memory location number (See Section
5.2.5 "Segment Definition and Playback").
CLEAR Clears the display to enter new data.
ENTER Press after selecting a segment number to play. (See Section 5.2.5,
"Segment Definition and Playback"). Also used in the copy command.
OPTION Used to access additional functions.
BKSP Moves the cursor back one character.

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3 REAR PANEL CONNECTIONS
V1 Rear Panel

17

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Note : Please do not use YUV/RGB output and Y/C (S-Video) outputs at the same time because
these signals are coming from the same buffered outputs and so this will produce a mismatch on
impedance loads.
Sync In House Sync input BNC connector for the V1 synchronization reference. Use only Black
Burst Sync here. Your Sync input should not exceed 1V P-P.
Video Analog Composite video input and output BNC connectors. Video IN is where you connect your
video signal for recording to the V1 and Video OUT is for connection to a video monitor or another
video recorder.
S-Video Two separate Y and C BNCs. You must use a Y/C to Mini DIN-4 adaptor for single
cable S-VHS applications.
SDI V1D only. Serial Digital Interface input and output BNC connectors for a direct connection with
digital betacams.
RGB/YUV V1D only. Three RGB or YUV selectable BNC output connectors
Analog Audio : These XLR connectors are the balanced analog audio inputs and outputs. Pin 2 is hot
(+), pin 3 is cold (-), and pin 1 is ground.
Digital Audio: Optional, Transformer balanced AES/EBU input and output. Pin 2 is hot (+), pin 3 is
cold (-), and pin 1 is ground.
RS-422 (1): The serial interface connector to the V1. Connector 1 should be connected to your edit
controller or workstation, while connector 2 is used to connect the optional RCV1 external
remote control from Doremi Labs, Inc.
RS-422 (2) or MIDI/Biphase: If all 9 jumpers on J34 are set to the RS422 position; this connector will
be used as a second RS422 port (this is the default setting when the unit
is shipped). If all 9 jumpers on J34 are set to MIDI+BP position; this
connector will be used as a MIDI I/O and Biphase input with a +5V
supply.
GPIO: Optional GPIO connector.
Ethernet: 100BaseT connector.
Time Code: Balanced TRS 1/4" input and output connectors for LTC time code. The V1 time code input
accepts balanced signals (tip hot, ring cold & sleeve is ground). If you are feeding an
unbalanced signal to it, both ring and sleeve should be connected to GND. You can use an
unbalanced jack (tip and sleeve) on the time code input of the V1. The V1 time code
output is a balanced signal (tip hot, ring cold & sleeve is ground). If you are feeding it to an
unbalanced input, ring should not be connected to anything. You can not use an
unbalanced jack (tip and sleeve) on the time code output of the V1. If you connect time
code from one V1 to another the cable should be balanced on both ends.
SCSI: Standard 68-pin female connector for connection to external SCSI drives. When no
external SCSI devices are used, make sure the supplied terminator is connected here. When
connecting external drives, the last drive in the chain should be terminated. All V1 internal
drives supplied by Doremi Labs, Inc. are non-terminated.
115V / 230V: Confirm that the proper voltage is selected for your area on the power supply. The switch
is located next to the power connector.

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Video Connections:
There are 4 analog output connectors provided that can be configured using Option Menu 3 for:
SVHS RGB (optional) YUV (optional)
C (SVHS) Y (SVHS) R G R-Y Y-SYNC
Composite 1 Composite 2 B SYNC B-Y Composite
The YUV output carries the SYNC on Y. The RGB output uses the composite output to provide
SYNC. It does not have SYNC on Green.
There are 4 analog input connectors provided that can be configured using Menu 5 for:
SVHS RGB (optional) YUV (optional)
C (SVHS) Y (SVHS) R G-SYNC R-Y Y-SYNC
Composite SYNC B SYNC B-Y SYNC
The YUV or RGB inputs will only accept signals with SYNC on Y or Green
3.1 HARDWARE SETUP OF THE MIDI and BI-PHASE INPUT
To enable Chase to Biphase, the 9 jumpers in J34 should be in the MIDI+BP position (the
position that is away from the edge of the board). The second DE-9 or Port-2 of the V1 will have
the following pinout:
GND
1
TX
MIDI-
2
RX
MIDI+
3
BP-S
4+5V 5
GND
6
TX
MIDI+
7
RX
MIDI-
8
BP-R
9
DVP400
In order to enable the Biphase input port : switch off the V1, disconnect the AC power cable, remove
the V1 top cover and locate the J34. Move all 9 jumpers to the MIDI+BP position.
Note: The RZ and SZ signals are locked in phase with a +/-90° phase difference.
3.2 The GPIO Option Card
To install the GPIO option card: switch off the V1, disconnect the AC power cable, remove the V1 top
cover and locate the 10-pin connector labeled GPIO.
• If there is a jumper installed in the middle of the GPIO connector, remove it.
• Plug the IDC cable supplied with your GPIO card in the GPIO connector
• Connect the other end to the GPIO card itself
• Mount the board using the enclosed accessories.
Pin 5: +5V will provide a 5V power signal
Pin 4: Biphase S signal
Pin 9: Biphase R Signal
Pin 1: Ground Signal
The rest of the pins are used for MIDI chase,
which is still not implemented.

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The pinout is of the external DE9 GPIO connector is:
GND
1
GPO3
2
GPI3
3GND 4GPI1 5
GND
6
GPO2
7
GPI2
8
GPO1
9
GPIO connector on Back Panel
Option Menu 33, GPIO Port, is used to enable or disable the GPIO for units that have the GPIO
option board installed. If the Option board is not installed, this option menu should be disabled.
A future software release will allow the user to specify the functions of the 3 GPIs and GPOs. In
the current software the 3 GPIs are set to:
GPI1: Play previous available segment,
GPI2: Reset segment number to 0,
GPI3: Play next available segment.