Mackenzie DV-2000 User manual

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______________________
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Return Address
Mackenzie Laboratories, Inc.
1163 Nicole Court
Glendora, CA 91740 USA
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DV-2000 User’s Manual
DV-2000
Digital Autoload,
Message-On-Hold System
MACKENZIE LABORATORIES, INC. Tel: [phone] • Fax: [phone]
1163 Nicole Court Web: www.macklabs.com
Glendora, CA 91740 • USA email: [email protected]

General Safety Instructions
Always follow these basic safety precautions when using the system:
1. Read carefully and understand all instructions.
2. Follow all warnings and instructions marked on the product.
3. DO NOT block or cover ventilation slots and openings.
4. DO NOT place the product in a closed enclosure or cabinet unless proper ven-
tilation is provided.
5. Never spill liquid on the product or drop objects into the ventilation slots and
openings. Doing so may result in serious damage to the components.
6. Repair or service must be performed by a factory authorized repair facility.
7. DO NOT staple or otherwise attach the power supply cord to building surface.
8. DO NOT use the product near or in wet or damp places, such as wet basements.
9. DO NOT use an extension cord. Install within 6 feet of a grounded outlet
receptacle.
10. DO NOT install during lightning storm.
11. Never touch un-insulated wires or terminals unless the unit is disconnected
from both power and the rest of the phone system.
12. Use Caution when installing or modifying configuration switches or control lines.
13. Install in a protected location where no one can step on, or trip over, power and
line cords.
14. The unit must be securely attached to a wall board, rack or table mounted.
15. Use correct power source. Use only the power pack supplied.
Regulations
FCC (Part 15) Radio Frequency Interference
The DV-2000 generates and uses radio frequency energy and if not installed and used
in strict accordance with the manufacturer's instructions, may cause interference to
radio and television reception. Unit complies with the limits for Class A devices in
accordance with the specifications in Subpart J of Part 15 of the FCC Rules. This
testing is designed to provide reasonable protection against such interference.
However, there is no guarantee that interference will not occur in a particular instal-
lation. If this equipment does cause interference to radio or television reception,
which can be determined by turning the unit off and on, the user is encouraged to
try to correct the interference by one or more of the following measures:
• Reorient the radio or TV receiving antenna.
• Relocate the unit with respect to the radio or TV receiver or vice-versa.
• Plug the unit into a different outlet so that it and the radio or TV receiver are on
different branch circuits
• If necessary, the user should consult the dealer or an experienced radio/television
technician for additional suggestions.
i DV-2000 User’s Manual
Warranty & Registration Card for the
DV-2000 - Digital Autoload, Message-On-Hold System
Date: ______________ Serial No.: ________________________________
Purchaser: ______________________________________________________
Address: _______________________________________________________
City: ______________________ State: ______ Zip: ________________
Phone: _____________ Fax: _____________ Email: ____________________
Purchased From: _____________________________ Date: _____________
Address: _______________________________________________________
City: ______________________ State: ______ Zip: ________________
Phone: _____________ Fax: _____________ Email: __________________
Return warranty card via fax to [phone] or mail to:
Mackenzie Laboratories Inc., 1163 Nicole Court, Glendora, CA 91740 USA.
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Mackenzie Product Lines
Message On Hold & Storecasting - Mackenzie's full line of digital Message-On-
Hold systems, turn your telephone into a powerful marketing tool. The DYNAVOX
series offers maintenance free digital playback with tape, modem or satellite down-
load. Several varieties are available with advanced features such as Music-Thru, indi-
vidual message enable/disable, message sequencing and more.
Digital Message Repeaters - Mackenzie's line of Digital Message repeaters are the
.ideal audio and video solutions for Information, Amusement, Entertainment,
Museum and Exhibit applications. Self contained solid state systems offer unparal-
leled reliability. A variety of channel, connection, bandwidth and memory configu-
rations are available.
Fire Alarm & Life Safety - Mackenzie's line of Fire Alarm and Life Safety Digital
Message Repeaters offer advanced features and unsurpassed reliability. These prod-
ucts offer the maintenance free operation of digital playback and are UL compliant
for Life Safety with self test and full supervision. Large memory capacity, random
access, multiple channel and field recording/programming are available.
Page Stacker / Feedback Eliminator - Mackenzie's FE series of Digital Page Stacker/
Repeater and Feedback Eliminators offer advanced features for the most difficult
paging and intercom applications. A unique design makes feedback virtually impos-
sible by recording then repeating pages which opens the loop between the input
microphone and speakers. Various models are available to support simple repetition,
multiple page stacking and multiple input channels.
Transit - Mackenzie is making a difference in transit applications with innovative
solutions for ADA compliance and Passenger Information Systems. These products
address a variety of audio and text messaging requirements and support both in-
vehicle and wayside installations.
DV-2000 User’s Manual 11

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10 DV-2000 User’s Manual
Table of Contents
1. OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1. Features and Benefits: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2. General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3. Models: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1. Wall or Table Installation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2. Connecting Power: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3. Connection to Telephone Equipment: . . . . . . . . . . . . . . . . . . . 2
3. OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1. Message Downloading: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.2. Message Playback: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.3. Pushbutton Descriptions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3.1. Eject / Record Stop Pushbutton . . . . . . . . . . . . . . . . . . . . . 6
3.3.2. Speaker pushbutton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.4. LED (Light Emitting Diodes) Descriptions . . . . . . . . . . . . . . . 6
3.5. Audio Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5.1. Audio level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5.2. Aphex® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.6. Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. POWER FAILURE RECOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5. TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . 8
6. WARRANTY, SERVICE & RETURNS . . . . . . . . . . . . . . . . . . . . . 9
6.1. Warranty Coverage: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.2. What we ask you to do: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.3. What this warranty does not cover: . . . . . . . . . . . . . . . . . . . . . 9
DV-2000 User’s Manual ii

Shipping Container Contents
The following items should be found in the container of the DV-2000.
• DV-2000
• Wall mount power pack
• Audio cable
• Mounting hardware
• User's manual
Aphex®, Aphex Aural Exciter and AX are patented, registered trademarks of
Aphex Systems, Ltd.
iii DV-2000 User’s Manual
6. WARRANTY, SERVICE & RETURNS
The industrial grade housing and quality construction of the Mackenzie
DV-2000 virtually eliminates the need for service or maintenance. There are
no user-serviceable components within the Mackenzie DV-2000. Refer all
servicing to the factory.
6.1. Warranty Coverage
The Mackenzie DV-2000 is tested and checked before shipment and is guar-
anteed against defective material or workmanship for a period of three (3)
years from the date of purchase. Should trouble ever develop, contact the
Factory directly by telephone or in writing. If it is determined that the
equipment requires Factory service, return it to the Factory. If our inspection
shows that the trouble was caused by defective material or workmanship, we
will repair or replace the equipment without charge and return it prepaid.
Repairs made necessary by abuse, improper use, unauthorized service or
maintenance, and/or improper installation, as well as out of warranty repairs,
will be charged at our regular repair prices in effect at the time. The obliga-
tion under this warranty shall be limited to the replacement, repair or refund
of any such defective device within the warranty period. This warranty is in
lieu of and excludes all other warranties, expressed or implied, and in no event
shall MACKENZIE be responsible for damage to other equipment or property,
for any anticipated profits, consequential damages, loss of item, or other opera-
tion or use of this product, and MACKENZIE'S maximum liability shall not
ever be greater than the price paid for the equipment. This warranty gives you
specific legal rights. Your rights may vary from state to state. Inquiries regarding
use, repair and service should be made to:
MACKENZIE LABORATORIES, INC.
1163 Nicole Court, Glendora, CA 91740 USA
Telephone: [phone]; FAX No: [phone]
Email: [email protected]; WWW: www.macklabs.com
6.2. What we ask you to do
To get warranty service for your DV-2000, you must provide proof of the
date of original purchase. In the event you need to ship your DV-2000 to the
factory for service, call us for a return authorization number. When you ship
your DV-2000, you must prepay all shipping costs. We suggest that you
retain your original packing material in the event that you need to ship your
DV-2000. When sending your DV-2000 to the factory, include your name,
address, phone number, proof of date of purchase, and a description of the
operating problem. After repairing or replacing your DV-2000, we will ship
it to your return address at no cost to you within the USA. Repair or
replacement of your DV-2000 at our factory is your exclusive remedy.
6.3. What this warranty does not cover
This warranty does not cover defects resulting from accidents, damage while
in transit to factory, alterations, unauthorized repairs, failure to follow
instructions, misuse, fire, flood, and acts of God.
DV-2000 User’s Manual 9

5. TROUBLESHOOTING GUIDE
No LEDs are active on the DV-2000.
• Just after a tape is inserted, and before audio is detected by the DV-2000,
all LEDs will be off.
• Verify that the AC-DC power adapter is plugged into non-switched AC
power outlet.
• Verify that the power connector is plugged completely into the jack on
the DV-2000.
The system will not mechanically load the tape into the system
• Push the cassette tape completely into the DV-2000.
• Verify that the AC-DC power adapter is plugged into non-switched AC
power outlet.
• Verify that the power connector is plugged completely into the jack on
the DV-2000.
The Record LED never comes on after the cassette tape is loaded into
the system
• Verify that the tape was inserted right side up.
• If the tape is blank, the Record LED will never come on.
• Verify that the nominal level of the audio recorded on the tape is over
-20dB.
After recording the tape, the tape ejected, and the system is not playing
a message.
• If the user pressed, and held the edit/eject button during the record, the
system will eject the tape immediately and delete the recorded audio.
• Verify that the tape was inserted with the audio recorded side facing side up.
• If there is no audio on the tape, it will eject it automatically when it reach-
es the end of the tape.
Can not hear anything through the on-hold circuit
• If both Record and M-0-H LEDs are off, there is no audio being output
by the system.
• Verify that the RCA to RCA connector is securely attached to the
DV-2000 and the phone system.
• Turn the output level adjustment clockwise to increase the audio output level.
• Use the 8 ohm output instead of the line level output.
Can not hear anything through the monitor speaker
• If both Record and M-0-H LEDs are off, there is no audio being output
by the system.
• Press the Speaker button so that it locks in the depressed position.
• If the level of the audio output is adjusted very low, the level from the
monitor speaker will also be very low.
8 DV-2000 User’s Manual
1. OVERVIEW
1.1. Features and Benefits
The DV-2000 is a highly reliable audio playback system specifically designed
for Message-On-Hold applications. Message material is loaded into the system
by cassette and stored in non-volatile FLASH memory. Messages play contin-
uously from memory until new messages are loaded.
The DV-2000 is designed to interface with the Message-On-Hold port of a wide
variety of phone systems. This allows your marketing messages to be played to
customers while they are on hold, reducing hang ups and increasing sales.
DV-2000 incorporates a ruggedized cassette mechanism and non-volatile
FLASH memory for unsurpassed reliability. The cassette mechanism was
originally designed for automotive applications and is intended for years of
reliable service. FLASH memory means that your messages remain intact in
the event of a brownout or power loss, without battery backup.
Multiple audio outputs with level control, Aphex® and high quality sam-
pling allow the sound of the DV-2000 to be optimized to almost any phone
system, insuring that the message gets heard.
1.2. General Specifications
Memory:
Type: Non-Volatile FLASH
Capacity: 8 - 32 minutes
Audio Fidelity:
STD Version 100Hz - 3.4kHz
PRO Version 100Hz - 6.8kHz
Signal to Noise 60dB
Power: 12VDC (power pack)
Audio Outputs:
Line: RCA, mono, 600 ohm
Amplified: RCA, mono, 2W @ 8ohm
Manual Controls: Aphex Mix, Output Volume,
Eject, Speaker Enable
LED Indicators: Tape Ejected, Recording, M-O-H
Package: Painted steel chassis
1.3. Models
DV-2000 User’s Manual 1
Model # Capacity Bandwidth
DV-2004 4 minutes 3.4kHz
DV-2008 8 minutes 3.4kHz
DV-2016 16 minutes 3.4kHz
DV-2032 32 minutes 3.4kHz
DV-2008 PRO 8 minutes 6.8kHz
DV-2016 PRO 16 minutes 6.8kHz
1. OVERVIEW
1.1. Features and Benefits
The DV-2000 is a highly reliable audio playback system specifically designed
for Message-On-Hold applications. Message material is loaded into the system
by cassette and stored in non-volatile FLASH memory. Messages play contin-
uously from memory until new messages are loaded.
The DV-2000 is designed to interface with the Message-On-Hold port of a wide
variety of phone systems. This allows your marketing messages to be played to
customers while they are on hold, reducing hang ups and increasing sales.
DV-2000 incorporates a ruggedized cassette mechanism and non-volatile
FLASH memory for unsurpassed reliability. The cassette mechanism was
originally designed for automotive applications and is intended for years of
reliable service. FLASH memory means that your messages remain intact in
the event of a brownout or power loss, without battery backup.
Multiple audio outputs with level control, Aphex® and high quality sam-
pling allow the sound of the DV-2000 to be optimized to almost any phone
system, insuring that the message gets heard.
1.2. General Specifications
Memory:
Type: Non-Volatile FLASH
Capacity: 8 - 32 minutes
Audio Fidelity:
STD Version 100Hz - 3.4kHz
PRO Version 100Hz - 6.8kHz
Signal to Noise 60dB
Power: 12VDC (power pack)
Audio Outputs:
Line: RCA, mono, 600 ohm
Amplified: RCA, mono, 2W @ 8ohm
Manual Controls: Aphex Mix, Output Volume,
Eject, Speaker Enable
LED Indicators: Tape Ejected, Recording, M-O-H
Package: Painted steel chassis
1.3. Models
DV-2000 User’s Manual 1
Model # Capacity Bandwidth
DV-2004 4 minutes 3.4kHz
DV-2008 8 minutes 3.4kHz
DV-2016 16 minutes 3.4kHz
DV-2032 32 minutes 3.4kHz
DV-2008 PRO 8 minutes 6.8kHz
DV-2016 PRO 16 minutes 6.8kHz
1. OVERVIEW
1.1. Features and Benefits
The DV-2000 is a highly reliable audio playback system specifically designed
for Message-On-Hold applications. Message material is loaded into the system
by cassette and stored in non-volatile FLASH memory. Messages play contin-
uously from memory until new messages are loaded.
The DV-2000 is designed to interface with the Message-On-Hold port of a wide
variety of phone systems. This allows your marketing messages to be played to
customers while they are on hold, reducing hang ups and increasing sales.
DV-2000 incorporates a ruggedized cassette mechanism and non-volatile
FLASH memory for unsurpassed reliability. The cassette mechanism was
originally designed for automotive applications and is intended for years of
reliable service. FLASH memory means that your messages remain intact in
the event of a brownout or power loss, without battery backup.
Multiple audio outputs with level control, Aphex® and high quality sam-
pling allow the sound of the DV-2000 to be optimized to almost any phone
system, insuring that the message gets heard.
1.2. General Specifications
Memory:
Type: Non-Volatile FLASH
Capacity: 8 - 32 minutes
Audio Fidelity:
STD Version 100Hz - 3.4kHz
PRO Version 100Hz - 6.8kHz
Signal to Noise 60dB
Power: 12VDC (power pack)
Audio Outputs:
Line: RCA, mono, 600 ohm
Amplified: RCA, mono, 2W @ 8ohm
Manual Controls: Aphex Mix, Output Volume,
Eject, Speaker Enable
LED Indicators: Tape Ejected, Recording, M-O-H
Package: Painted steel chassis
1.3. Models
DV-2000 User’s Manual 1
Model # Capacity Bandwidth
DV-2004 4 minutes 3.4kHz
DV-2008 8 minutes 3.4kHz
DV-2016 16 minutes 3.4kHz
DV-2032 32 minutes 3.4kHz
DV-2008 PRO 8 minutes 6.8kHz
DV-2016 PRO 16 minutes 6.8kHz
1. OVERVIEW
1.1. Features and Benefits
The DV-2000 is a highly reliable audio playback system specifically designed
for Message-On-Hold applications. Message material is loaded into the system
by cassette and stored in non-volatile FLASH memory. Messages play contin-
uously from memory until new messages are loaded.
The DV-2000 is designed to interface with the Message-On-Hold port of a wide
variety of phone systems. This allows your marketing messages to be played to
customers while they are on hold, reducing hang ups and increasing sales.
DV-2000 incorporates a ruggedized cassette mechanism and non-volatile
FLASH memory for unsurpassed reliability. The cassette mechanism was
originally designed for automotive applications and is intended for years of
reliable service. FLASH memory means that your messages remain intact in
the event of a brownout or power loss, without battery backup.
Multiple audio outputs with level control, Aphex® and high quality sam-
pling allow the sound of the DV-2000 to be optimized to almost any phone
system, insuring that the message gets heard.
1.2. General Specifications
Memory:
Type: Non-Volatile FLASH
Capacity: 8 - 32 minutes
Audio Fidelity:
STD Version 100Hz - 3.4kHz
PRO Version 100Hz - 6.8kHz
Signal to Noise 60dB
Power: 12VDC (power pack)
Audio Outputs:
Line: RCA, mono, 600 ohm
Amplified: RCA, mono, 2W @ 8ohm
Manual Controls: Aphex Mix, Output Volume,
Eject, Speaker Enable
LED Indicators: Tape Ejected, Recording, M-O-H
Package: Painted steel chassis
1.3. Models
DV-2000 User’s Manual 1
Model # Capacity Bandwidth
DV-2004 4 minutes 3.4kHz
DV-2008 8 minutes 3.4kHz
DV-2016 16 minutes 3.4kHz
DV-2032 32 minutes 3.4kHz
DV-2008 PRO 8 minutes 6.8kHz
DV-2016 PRO 16 minutes 6.8kHz

2. INSTALLATION
This section provides complete instructions for mounting the DV-2000.
Before you install the DV-2000, make sure you have:
• A message or music on hold input connection/jack on your phone system.
• A non-switchable 110VAC electrical outlet near the location where the
unit is to be installed.
2.1. Wall or Table Installation
1. Locate a proper space on the telephone equipment board or wall (see
Figure 1). You can mount the DV-2000 in one of three positions: flat,
side, or horizontal. See illustration below.
2. Position the unit on the board; mark the mounting hole locations.
3. Using the mounting screws provided, secure the DV-2000 to the board
or wall.
4. If table top mounting the DV-2000, stick the enclosed rubber feet on the
bottom of the unit.
2.2. Connecting Power (Figure 2)
1. Plug the power pack into a 110VAC power outlet which is not connect-
ed to a switch.
2. Plug the power jack into the DV-2000’s power plug marked 12VDC.
3. There is no power switch on the DV-2000, so as soon as power is con-
nected, the system will be active.
2.3. Connection to Telephone Equipment (Figure 2)
1. Connect one side of the supplied RCA cable to the telephone equip-
ment's Message-On-Hold input. Connect the other side of this cable to
the DV-2000's LINE OUT. There are two audio outputs on the
DV-2000, LINE OUT (Low, +4dB into 600 ohms), and SPKR OUT
(High, 2W into 8 ohms). Use the LINE OUT first adjusting the audio
output volume potentiometer to obtain the correct audio level. If this
does not provide enough audio level, then switch to the SPKR OUT.
2 DV-2000 User’s Manual
Figure 1
3.5. Audio Adjustments
There are two potentiometers on the DV-2000 allowing the user to tailor the
audio output level and high frequency response. These potentiometers are
located on the front side of the device directly above the audio output con-
nectors.
3.5.1. Audio level
The level of both the LINE OUT and SPKR OUT are simultaneously
adjusted using the audio level adjustment potentiometer. Turning this poten-
tiometer counter clockwise will lower the audio level. Turning this poten-
tiometer clockwise will raise the audio level.
3.5.2. Aphex®
This special, psycho-acoustical processing extends the high frequency
response of the DV-2000. Turning this potentiometer clockwise amplifies the
high frequencies while turning it counterclockwise attenuates the high fre-
quencies.
3.6. Connections
There are several connectors on the front side of the device.
DC Power
2.5mm Barrel connector. The system is powered by 12VDC. Use only the
AC-DC power adapter supplied by the manufacturer to guarantee proper
operation.
Line Level Audio Output (LINE OUT)
RCA connector. A 600 ohm, transformer isolated, audio output. When
installing the DV-2000, connect this output to the phone system first.
Amplified Audio Output (SPKR OUT)
RCA connector. An amplified, 2 watt into 8 ohm, audio output. Use this
audio output if the audio from the Line output can't drive the on-hold cir-
cuit to a high enough level.
4. POWER FAILURE RECOVERY
The DV-2000 uses FLASH memory which is not dependent upon power or
battery backup to retain its memory. This eliminates problems associated
with brownouts or unexpected power losses. When power is returned, the
system will immediately start the operation it was in prior to power being
removed.
DV-2000 User’s Manual 7

3.3. Pushbutton Descriptions
Two pushbuttons are provided on the DV-2000.
3.3.1. Eject/Record Stop Pushbutton
A momentary pushbutton, red in color. This button allows the user to stop
the recording process, and/or eject the tape.
1. When the system is not recording, the button functions as an Eject button.
2. When the DV-2000 is recording audio, (whenever the Record LED is on)
pressing this button momentarily will stop the recording and save the
audio which was just recorded. The system will rewind the tape, but not
eject it.
3. If the button is pressed momentarily while the DV-2000 is recording
audio, and then pressed momentarily again, the system will stop the
recording process, save the audio just recorded, and eject the cassette tape.
4. If this button is pressed and held for two seconds while the DV-2000 is
recording, the audio just recorded will be deleted, and the tape will be
ejected without being rewound.
3.3.2. Speaker pushbutton
A locking pushbutton, black in color, which controls the monitor speaker
located on the front of the unit. Pressing this button will activate the mon-
itor speaker, allowing the local user to hear the audio being output by the
DV-2000. Releasing the button will deactivate the monitor speaker.
The volume of the monitor speaker is determined by the volume setting of
the audio output. If the phone system requires a particularly low level from
the DV-2000, the volume of the monitor speaker will also be low.
Note: Do not adjust the audio output level adjustment in order to hear the
monitor speaker level better. Doing this will adjust the level of the Message-
On-Hold output which may not be acceptable.
3.4. LED (Light Emitting Diodes) Descriptions
Three LEDs are provided on the top of the DV-2000 to display the current
status of the system.
Eject LED
This yellow LED will light whenever there is no tape inside the system.
When a tape is inserted, and loaded into the machine, this LED will go out.
Record LED
This red LED will light when the DV-2000 starts recording an audio pro-
gram, and will go out when the recording process stops. The Record LED
will blink one time when the DV-2000 is powered on, indicating that the
memory is operational.
M-0-H LED
This green LED will light when the DV-2000 is playing a previously record-
ed message.
6 DV-2000 User’s Manual
DV-2000 User’s Manual 3
3. OPERATION
3.1. Message Downloading
When you receive the new DV-2000, its memory will be blank. To load a
new message into the DV-2000's memory, simply insert a recorded cassette
(Tape Up, Facing Label).
When a new tape is inserted, the DV-2000 will automatically rewind the cas-
sette to the beginning and then start playing it. The DV-2000 will record the
audio program, ignoring the silence before and after the audio recorded on
the cassette. When the audio program on the tape starts, the red Record light
will come on signifying that audio is being recorded to memory. At the end
of the audio program, when the DV-2000 detects 5 seconds of silence, the
recording will end, the Record LED will go out, and the system will auto-
matically rewind the cassette tape. The 5 seconds of silence will be deleted
prior to playing the message.
The audio being recorded will be output though the LINE and SPKR out-
puts during the recording process. This audio may also be monitored by the
user, by pressing the "Speaker" button.
Warning: When a tape is inserted into the DV-2000, the previous
recording is deleted immediately. If the tape is then ejected, prior to
recording any audio, the DV-2000's memory will be empty.
3.2. Message Playback
After a message has been recorded into memory, the DV-2000 will automat-
ically begin playing this message through the audio outputs. The green
M-O-H LED, will illuminate whenever a pre-recorded message is playing.
Figure 2

EJECT / RECORD STOP PUSH-BUTTON:
This ejects the tape when the system is playing a
message. If pressed during the recording process the
recording will be stopped.
NOTE:
It is recommended That you leave the Cassette Tape in the system for
auto download operation.
Insert Pre-Recorded tape Cassette as shown ( Tape up, Facing label ),
system will rewind tape then start loading ( Red LED is on ) at the end
of downloading the message, the Red LED will turn off, system will
rewind the tape. It automatically the message from the digital audio
memory starts playing.
The Mackenzie Dynavox
Digital Autoload Message On-Hold System
Model DV-2000 & DV-2000 PRO
TAPE EJECTED LED:
Yellow light on indicates there is no cassette
inserted.
Insert cassette, yellow light off = cassette in place,
will start memory loading.
RECORDING LED:
Used to determine tape loading mode. Red light
on, indicates message (s) is being loaded into
memory
M-O-H LED:
This green LED is on when the system is playing
a Pre-Recorded message.
SPEAKER PUSH-BUTTON:
Local Monitor ON/OFF
POWER:
Insert power adapter supplied.
APHEX:
Adjusts the amount of high frequency
enhancement necessary to deliver the best
overall system performance.
LINE OUT:
Audio output level at of to +4dp into 600 , this is
a standard level for most applications.
SPKR OUT:
Audio output level at up to 1.5W into 8 use this
output if more drive is needed to reach a more
comfortable listening level.
LEVEL:
Adjusts the volume to the line
level or power audio outputs. Monitor Speaker