ALPINE DAI-C990 High Resolution D/A Converter Owner’s Manual
- June 13, 2024
- Alpine
Table of Contents
DAI-C990 High Resolution D/A Converter
Owner’s Manual
DAI-C990
AlpineF#1Status™
DAI-C990 High Resolution D/A Converter
WARNING
This symbol means important instructions.
Failure to heed them can result in serious injury or death.
DO NOT DISASSEMBLE OR ALTER.
Doing so may result in an accident, fire or electric shock.
USE THE CORRECT AMPERE RATING WHEN REPLACING FUSES.
Failure to do so may result in fire or electric shock.
MAKE THE CORRECT CONNECTIONS.
Failure to make the proper connections may result in fire or product damage.
USE ONLY IN CARS WITH A 12 VOLT NEGATIVE GROUND.
(Check with your dealer if you are not sure.) Failure to do so may result in
fire, etc.
BEFORE WIRING, DISCONNECT THE CABLE FROM THE NEGATIVE BATTERY TERMINAL.
Failure to do so may result in electric shock or injury due to electrical
shorts.
DO NOT ALLOW CABLES TO BECOME ENTANGLED IN SURROUNDING OBJECTS.
Arrange wiring and cables in compliance with the manual to prevent
obstructions when driving. Cables or wiring that obstruct or hang up on places
such as the steering wheel, shift lever, brake pedals, etc. can be extremely
hazardous.
DO NOT SPLICE INTO ELECTRICAL CABLES.
Never cut away cable insulation to supply power to other equipment. Doing so
will exceed the current carrying capacity of the wire and result in fire or
electric shock.
DO NOT DAMAGE PIPE OR WIRING WHEN DRILLING HOLES.
When drilling holes in the chassis for installation, take precautions so as
not to contact, damage or obstruct pipes, fuel lines, tanks or electrical
wiring. Failure to take such precautions may result in fire.
DO NOT USE BOLTS OR NUTS IN THE BRAKE OR STEERING SYSTEMS TO MAKE GROUND
CONNECTIONS.
Bolts or nuts used for the brake or steering systems (or any other safety-
related system), or tanks should NEVER be used for installations or ground
connections. Using such parts could disable control of the vehicle and cause
fire etc.
DO NOT BLOCK VENTS OR RADIATOR PANELS.
Doing so may cause heat to build up inside and may result in fire.
KEEP SMALL OBJECTS SUCH AS BATTERIES OUT OF THE REACH OF CHILDREN.
Swallowing them may result in serious injury. If swallowed, consult a
physician immediately.
DO NOT INSTALL IN LOCATIONS WHICH MIGHT HINDER VEHICLE OPERATION, SUCH AS THE
STEERING WHEEL OR SHIFT LEVER.
Doing so may obstruct forward vision or hamper movement etc. and results in
serious accident.
DO NOT OPERATE ANY FUNCTION THAT TAKES YOUR ATTENTION AWAY FROM SAFELY DRIVING
YOUR VEHICLE.
Any function that requires your prolonged attention should only be performed
after coming to a complete stop. Always stop the vehicle in a safe location
before performing these functions. Failure to do so may result in an accident.
KEEP THE VOLUME AT A LEVEL WHERE YOU CAN STILL HEAR OUTSIDE NOISE WHILE
DRIVING.
Failure to do so may result in an accident.
MINIMIZE DISPLAY VIEWING WHILE DRIVING.
Viewing the display may distract the driver from looking ahead of the vehicle
and cause an accident.
USE THIS PRODUCT FOR MOBILE 12V APPLICATIONS.
Use for other than its designed application may result in fire, electric shock
or other injury.
CAUTION
This symbol means important instructions.
Failure to heed them can result in injury or material property damage.
HAVE THE WIRING AND INSTALLATION DONE BY EXPERTS.
The wiring and installation of this unit requires special technical skill and
experience. To ensure safety, always contact the dealer where you purchased
this product to have the work done.
USE SPECIFIED ACCESSORY PARTS AND INSTALL THEM SECURELY.
Be sure to use only the specified accessory parts. Use of other than
designated parts may damage this unit internally or may not securely install
the unit in place. This may cause parts to become loose resulting in hazards
or product failure.
ARRANGE THE WIRING SO IT IS NOT CRIMPED OR PINCHED BY A SHARP METAL EDGE.
Route the cables and wiring away from moving parts (like the seat rails) or
sharp or pointed edges. This will prevent crimping and damage to the wiring.
If wiring passes through a hole in metal, use a rubber grommet to prevent the
wire’s insulation from being cut by the metal edge of the hole.
DO NOT INSTALL IN LOCATIONS WITH HIGH MOISTURE OR DUST.
Avoid installing the unit in locations with high incidence of moisture or
dust. Moisture or dust that penetrates into this unit may result in product
failure.
HALT USE IMMEDIATELY IF A PROBLEM APPEARS.
Failure to do so may cause personal injury or damage to the product. Return it
to your authorized Alpine dealer or the nearest Alpine Service Centre for
repairing.
PRECAUTIONS
- Be sure to disconnect the cable from the (–) battery post before installing your DAI-C990. This will reduce any chance of damage to the unit in case of a short-circuit.
- Be sure to connect the color coded leads according to the diagram. Incorrect connections may cause the unit to malfunction or damage to the vehicle’s electrical system.
- When making connections to the vehicle’s electrical system, be aware of the factory installed components (e.g. on-board computer). Do not tap into these leads to provide power for this unit. When connecting the DAI-C990 to the fuse box, make sure the fuse for the intended circuit of the DAI-C990 has the appropriate amperage. Failure to do so may result in damage to the unit and/ or the vehicle. When in doubt, consult your ALPINE dealer.
- The DAI-C990 uses female RCA-type jacks for connection to other units (e.g. amplifier) having RCA connectors. You may need an adaptor to connect other units. If so, please contact your authorized ALPINE dealer for assistance.
- Be careful not to cause a short by jamming the cable into the computer when connecting. It can cause a fault.
- Alpine accepts no responsibility for damaged or lost data in your computer etc., even if data etc., is damaged or lost while using this product.
Wiring Connections
Improper wiring connections could cause serious damage to your audio system.
Be sure you:
- DO NOT connect (–) wires from left and right speakers together.
- DO NOT ground any speaker wires.
- DO NOT run wires where they may be pinched or cut.
- DO NOT leave bare speaker terminals ex posed. They may contact the vehicle chassis and cause a short.
Fuse
When replacing the fuse(s), the replacement fuse must be of the same amperage
as shown on the fuse holder. If the fuse(s) blows more than once, carefully
check all electrical connections for shorted circuitry. Also have your
vehicle’s voltage regulator checked. Do not attempt to repair the unit
yourself; return it to your Alpine dealer or nearest Alpine Service Station
for servicing.
Temperature
In order to ensure proper performance, be sure the temperature in your vehicle is above 14°F (–10°C) and below 140°F (60°C) before turning your unit on. Good air circulation is essential to prevent internal heat build-up in the unit.
Installation Location
Make sure the DAI-C990 will not be installed in a location subjected to:
- Direct sun and heat
- High humidity and water
- Excessive dust
- Excessive vibrations
Maintenance
If you have problems, do not attempt to repair the unit yourself. Return it to your Alpine dealer or the nearest Alpine Service Station for servicing.
IMPORTANT
Please record the serial number of your unit in the space provided below and
keep it as a permanent record. The serial number plate is located on the
bottom of the unit.
SERIAL NUMBER:—————————
INSTALLATION DATE:———————-
INSTALLATION TECHNICIAN:————
PLACE OF PURCHASE:———————
To prevent external noise from entering the audio system.
- Locate the unit and route the leads at least 10 cm away from the car harness.
- Keep the battery power leads as far away from other leads as possible.
- Connect the ground lead securely to a bare metal spot (remove any paint, dirt or grease if necessary) of the car chassis.
- If you add an optional noise suppressor, connect it as far away from the unit as possible. Your Alpine dealer carries various noise suppressors. Contact them for further information.
- Your Alpine dealer knows best about noise prevention measures so consult your dealer for further information.
Control and Connection Descriptions
-
Crossover Mode Selector Switch (Front HPF)
Set to HP to turn on the HPF crossover. The Front output becomes midrange to highs only.
To use the Front output for full-range, set to OFF. -
Crossover Frequency Adjustment Control (Front HPF)
Use with the crossover mode selector switch (Front HPF) set to HP.
Use this control to adjust the crossover frequency between 30 and 400 Hz.
It is normally set to 50Hz, but you can adjust it to a level you like. -
Crossover Mode Selector Switch (Rear HPF)
Set to HP to turn on the HPF crossover. The Rear output becomes midrange to highs only.
To use the Rear output for full-range, set to OFF. -
Crossover Frequency Adjustment Control (Rear HPF)
Use with the crossover mode selector switch (Rear HPF) set to HP.
Use this control to adjust the crossover frequency between 30 and 400 Hz.
It is normally set to 50Hz, but you can adjust it to a level you like. -
Phase Selector Switch (Subwoofer)
The subwoofer phase can be changed. While sitting in the driving seat, you can switch between 0˚ (normal phase) and 180˚ (reverse phase) and choose whichever setting has the lower frequency range output. 180˚ (reverse phase) may be better depending on the speaker installation position and the shape of the car. -
Crossover Frequency Adjustment Control (Subwoofer LPF)
Use this control to adjust the crossover frequency between 30 and 400 Hz.
It is normally set to 100Hz, but you can adjust it to a level you like.
-
Fuse (7.5A)
-
Battery terminal
Connect this terminal directly to the positive (+) terminal of the vehicle’s battery. Do not connect this terminal to a switched voltage source (such as Ignition). -
Remote OUT terminal
Use this output to control an amplifier or other peripheral device. -
Ground terminal
Connect securely to a metal part of the vehicle’s body using the ground cord. -
IONBUS Port
Use these ports to connect to IONBUS compatible head units or peripheral devices. -
DVD Audio Link Port
Input a DVD Audio signal to this port. -
Subwoofer Output
Output signal to drive the subwoofer amplifier. -
Rear Output
Output signal to drive the Rear amplifier. -
Front Output
Output signal to drive the Front amplifier.
- The covers for the DVD Audio and IONBUS ports must be removed when connecting the DVD Audio Link cable and the IONBUS cable. Leave the covers on if you are not using the DVD Audio or the IONBUS ports.
- This unit is incompatible with multi-channel playback. Select stereo (2ch) audio from sources that contain stereo (2ch) audio, such as DVD video or DVD audio.
- Even if discs with multi-channel audio such as DVD video/DVD audio are played, the same audio is output from the rear/subwoofer as the front (the subwoofer is LP).
- The output for the subwoofer in this unit is fixed at stereo. To playback through the subwoofer alone, use an external amplifier that can mix the L/R audio.
Accessories
-
Ferrite Core
Attach the Ferrite Core (included) to the both ends of the IONBUS cable at a location where the product does not touch the core when installing. (When connecting to the main unit, attach the core at a location of approx. 4 cm from the terminal end.) -
For connection of DAI-C990, the battery power cable (sold separately), ground cable (sold separately), remote out cable (sold separately), are necessary.
Installation
-
Decide on the installation location.
• The trunk, etc., is the best place. -
Mark the positions of the mounting screws at the chosen location.
-
Drill 3 mm (1/8”) holes or smaller.
WARNING: When making holes, be careful not to damage pipes, tanks, electric wires, etc. Doing so could lead to accidents or fire. -
Securely mount the unit using the four included pan head screws (M4 x 14).
Pan head screws (M4 x 14)
Connection
- Basic Connections Diagram
- When connecting the Battery power cable direct to the battery terminal, a fuse at the battery should be used to protect your equipment. Please consult with your Alpine dealer for the proper fuse value.
Example of system expansion
-
DAI-C990 + DVI-9990R/DVI-9990E Head Unit + TMI-M990 Monitor + Ai-NET compatible Changer Connected
*1 Ferrite Core (See page 8).
Two pieces are attached to DAI-C990,TMI-M990, KCI-500B. -
IONBUS compatible products can be connected in any order. The connection order shown above is an example.
-
When an Ai-NET compatible changer is not connected, then the KCI-500B does not need to be connected.
-
The separately sold multimedia manager (PXI-H990) cannot be connected and used.
-
If connecting this unit to the head unit (DVI-9990R/DVI-9990E) only, then connect the IONBUS cable to the head unit side.
-
This unit operates when connected to the head unit (DVI-9990R/DVI-9990E). (It does not work when connected with an Ai-Net compatible head unit).
-
For details about connections, refer to the instruction manual of the product you are connecting with.
Information
In case of difficulty
If you encounter a problem, please review the items in the following
checklist. This guide will help you isolate the problem if the unit is at
fault. Otherwise, make sure the rest of your system is properly connected or
consult your authorized Alpine dealer.
Set does not operate.
Nothing appears on the head unit display.
-
Vehicle’s ignition key is turned off.
– Turn the vehicle’s ignition key on. -
Set’s power is not turned on.
– Turn the vehicle’s ignition key on then turn on the power of the head unit. -
Power cord is not securely connected.
– Connect the power cord securely. -
Fuse is blown.
– Replace with a fuse of the specified capacity. -
Power is on but no sound is produced.
-
Volume level is set to the minimum.
– Increase the volume level from the head unit.
No sound is produced from the speakers. -
Cords are not securely connected.
– Connect the cords securely. -
Check the connections to the external amplifier (Remote OUT cable, RCA Extension cable).
“System Error” is displayed on the head unit. -
The connections are incomplete.
– Check the Battery power cable and the Ground cable connections on this unit.
– Check the IONBUS cable connection. -
Fuse is blown.
– Replace with a fuse of the specified capacity.
Specifications
Frequency response (DVD-Audio): 20 Hz to 20 kHz (20 Hz~96 kHz) (when HPF is
off for front/rear channel)
S/N ratio: 110 dB (IHF-A)
Channel separation: 90 dB
Front/Rear (when HPF is on),
Subwoofer crossover: 30 to 400 Hz (ANALOG-VR) Fixed Slope 12dB/OCT.
Rated output: 4V (with 10 k ohms load)
Output impedance: 1 k ohm or less
Weight: 2.1 kg (4 lbs. 10 oz)
Dimensions
Width 260 mm (10-3/16″)
Height 67 mm (2-5/8″)
Depth 160 mm (6-1/4″)
Due to continuous product improvement, specifications and design are subject
to change without notice.
The illustrations included in these instructions may appear different from the
actual product due to printing conditions.
ALPINE ELECTRONICS MARKETING, INC.
1-1-8 Nishi Gowanda,
Shinagawa-uk, Tokyo 141-0031, Japan
Phone 03-5496-8231
ALPINE ELECTRONICS OF AMERICA, INC.
19145 Gramercy Place, Torrance,
California 90501, U.S.A.
Phone 1-800-ALPINE-1 (1-800-257-4631)
ALPINE ELECTRONICS OF CANADA, INC.
7300 Warden Ave., Suite 203, Markham,
Ontario L3R 9Z6, Canada
Phone 1-800-ALPINE-1 (1-800-257-4631)
ALPINE ELECTRONICS OF AUSTRALIA PTY. LTD.
6-8 Giveaways Boulevard Keys borough,
Victoria 3173, Australia
Phone 03-9769-0000
ALPINE ELECTRONICS OF U.K. LTD.
Alpine House
Fletchamstead Highway,
Coventry CV4 9TW, U.K.
Phone 0870-33 33 763
Designed by ALPINE Japan
Printed in Japan (S)
68P70033Y61-O
Sankei Kikiki Co., Ltd.
1-13-38, Hinda,
Hino, Tokyo, Japan
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