40 Watt EQ/Booster (120-1966) Installation Faxback Doc. # 7560
Before you install the equalizer/booster, carefully read all installation
instructions. If you are unsure about any part of the installation
process, we recommend that you have a professional install your
equalizer/booster.
Note the following before you begin installing the equalizer/booster:
* Be sure your vehicle has a 12-volt DC, negative-ground electrical
system. If it does not or if you are not sure, have a professional
install your equalizer/booster.
* If you connect front and rear speakers to the equalizer/booster, each
speaker must have an impedance of 8 ohms or more. If you connect only
one pair of speakers, each speaker must have an impedance of 4 ohms or
more and you must connect the speakers to the front speaker harness.
* Before you mount the equalizer/booster, temporarily connect the
equalizer/booster as described in "Connecting the Equalizer/Booster".
Do not mount the Equalizer/Booster until you are sure the connections
work.
SUPPLIED HARDWARE
The following items are supplied with the equalizer/booster. Be sure you
locate these items before you throw away the packing materials.
1 - Left-Bracket
4 - Machine Screws
4 - Small Flat Washers
4 - Large Flat Washers
1 - Right-Bracket
4 - Small Lock Washers
4 - Sheet-Metal Screws
4 - Large Lock Washers
1 - 7-Amp Fuse
CHOOSING A MOUNTING LOCATION
Choose a mounting location that:
* Is as close as possible to your vehicle's radio/cassette player or
other main auto-sound component
* Does not interfere with the vehicle's operation
* Is not directly in front of a heating vent
* Lets you drill mounting holes without damaging other vehicle
components
* Allows enough leg room for passengers
* Lets you conveniently and safely route wires
CONNECTING THE EQUALIZER/BOOSTER
To connect the equalizer/booster, connect the wires and install the
correct fuses as described in the following pages.
CAUTION: To protect your vehicle's electrical system, disconnect the
cable from the vehicle battery's positive (+) terminal before
you connect the equalizer/booster. (This disconnects power from
your vehicle's clock, your auto sound system's tuner memories,
and any other clock or memory devices in your vehicle. You must
later reset these.)
CONNECTING THE WIRES
Place the equalizer/booster as close as possible to the selected mounting
location. Then, route the wires, and temporarily disconnect the equalizer/
booster as follows:
1. Connect the equalizer/booster's five-wire harness to the
radio/cassette player's five-wire socket (includes a red power wire).
2. Connect the equalizer/booster's black (ground) wire to a chassis
ground, such as a clean metal bolt attached to the vehicle's frame. Be
sure that the bolt is not insulated from the frame by a plastic part.
3. Connect the front speaker harness supplied with your radio/cassette
player to the equalizer/booster's FRONT socket.
Be sure that this harness's red power wire is connected to a terminal
in the vehicle's fuse block that turns on and off with the ignition.
This connection provides power to the equalizer/booster when you turn
on the ignition, and turns off the ignition. This prevents your
vehicle's battery from being drained if you leave on the
equalizer/booster when you turn off the ignition.
4. Connect the front speakers to the front speaker harness, with the
white (-) and green (+) wires to the left front speaker and the gray
(-) and brown (+) wires to the right front speaker.
5. Connect the rear speaker harness to the equalizer/booster's rear
socket.
Connect the rear speakers to the rear speaker harness, with the white
(-) and green (+) wires to the left rear speaker and the gray (-) and
brown (+) wires to the right rear speaker.
If this harness has a red power wire, use a wire tie to keep the red
wire out of the way.
You can buy a rear speaker harness at your local Radio Shack store.
6. Proceed to "Installing the Fuses."
CONNECTING THE EQUALIZER/BOOSTER TO YOUR EXISTING AUTO-SOUND SYSTEM
IF THE EXISTING AUTO-SOUND COMPONENT (RADIO OR TAPE PLAYER) HAS RCA-TYPE
LINE OUTPUT JACKS:
1. Connect the radio/tape player's line outputs to the
equalizer/booster's LINE INPUT jacks using shielded cables with RCA-
type plugs. (Connect left to left and right to right.)
2. Disconnect the square, in-line connectors in the equalizer/booster's
input wiring harness.
3. Insert the equalizer/booster's output wiring plug into the matching
jack on the existing radio/tape player (or into the matching jack that
you or a qualified technician added to the existing component).
IF THE EXISTING AUTO-SOUND COMPONENT (RADIO OR TAPE PLAYER) DOES NOT HAVE
RCA-TYPE LINE OUTPUT JACKS:
1. Be sure that the square, in-line connectors in the equalizer/booster's
input wiring harness are securely connected.
2. Insert the equalizer/booster's output wiring plug into the matching
jack on the existing radio/tape player (or into the matching jack that
you or a qualified technician added to the existing component).
INSTALLING THE FUSES
Before you use the equalizer/booster, you must install fuses of the proper
rating.
Check the rating of the fuses originally supplied in the radio/cassette
player's front speaker harness. This harness is now installed between the
equalizer/booster and the fuse block and is shown in the diagram in the
manual as Harness A. Then, follow the appropriate procedure.
* If the fuse is a 3-amp fuse, replace it with the 7-amp fuse supplied
with the equalizer/booster.
* If the fuse is not a 3-amp fuse, replace it with a fuse that is rated
at 4 amps higher (not supplied). Then, replace the fuse originally
supplied in the equalizer/booster's harness (Harness B) with the fuse
you removed from Harness A.
NOTES: Use only standard 30 mm fuses.
To open a fuse holder, push the two parts together and twist them
so they spring apart. To reassemble a fuse holder, push the parts
together and twist them so they snap together.
TESTING THE CONNECTIONS
After you connect the wires and install the fuses, reconnect the cable to
the vehicle battery's positive (+) terminal. Test the equalizer/booster to
be sure that the connections are correct. See "Operation".
MOUNTING THE EQUALIZER/BOOSTER
After you test the equalizer/booster, disconnect the cable from the
vehicle battery's positive (+) terminal, and disconnect the
equalizer/booster. Then, mount the equalizer/booster as follows.
1. Temporarily attach the mounting brackets to the equalizer/booster.
2. Position the equalizer/booster in the mounting location. Then, mark
the positions for the mounting brackets on the mounting surface by
tracing the outside edges of the mounting brackets.
3. Remove the mounting brackets from the equalizer/booster, and position
them as marked on the mounting surface. Then, trace the positions for
the mounting holes.
4. Drill 3/16-inch holes in the marked locations. Be sure you do not
damage anything on the other side of the mounting surface.
5. Attach the mounting brackets to the mounting surface using the
supplied sheet-metal screws, large lock washers, and large flat
washers, with a single large lock washer between each sheet-metal
screw and large flat washer.
6. Attach the equalizer/booster to the mounting bracket using the
supplied machine screws, small lock washers, and small flat washers,
with a single small lock washer between each machine screw and small
flat washer.
7. Reconnect the equalizer/booster.
8. Reconnect the cable to the vehicle battery's positive (+) terminal.
CONNECTING A CD PLAYER
To connect a portable CD player or other audio component that has a 1/8-
inch headphone jack, use a patch cord with a 1/8-inch stereo plug at both
ends.
Plug the cord into the equalizer/booster's CD jack and the CD player's
headphone jack.
(tlc/all-09/15/94)