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"hollywood sound labs" Installation

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FAQ -- Questions about amplifier installation

  1. Amplifier Features
  2. Installation guide
  3. Checklist
  4. Troubleshooting
  5. Philosophy
  6. hollywood sound labs suggestions

Amplifier Features.

hollywood sound Amplifier Features
-Pulse Width Modulated power Supply
-MOSFET circuitry & tighly regulated power supply
-Full amplifier protection against shorts, D.C., thermal overflow & reverse polarity
-Direct coupled, fully complementary amplifier circuits
-LowERS 105°capacitors are used in all power supplies
-High speed rectifiers(35nano-sec) used throughout
-Unique separate set of RCA line outs wich allow you to actually control a second amplifier via our exclusive PLUG-IN-CARD
-Advanced heatsink design
-Total thump-free turn-on and turn-off & time delayed turn-on
-FULL GOLD printed card
-Large power-plane on printed card
-Exclusive speakers & power terminal with multi wire size accepted
-MADE IN THE GOOD OL’ USA

 

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Installation guide

Disconnect battery ground before installation.


Mount the amplifier in a suitable location so that free
airflow is avaible.


Connect the power ground connection on the respective
barrier strip to the nearest good ground point on the
chassis of the vehicule, using 10ga. wire or greater (refer
to the check-list)


Connect the remote wire to the switched output of the
head unit using 16ga. wire.


Mount the RCA inputs to the peace of equipment that
will be delivering signal to the amplifier.


Connect the loudspeakers as show in each respective
diagram. Make sure that there are no shorts in these
speaker circuits, either to each other or to the ground
of the vehicule.


Set the input gain to minimum (0.1 V), turn on the
head unit, and adjust the level control for the sound
pressure.

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Checklist


This checklist is provided to facilitate a smooth, trouble-free installation and operation.

1.Check battery terminal location

2.Check battery voltage(11.5v or above)

5.Check amplifier mounting tighness

4.Check Amp location for heat and ventilation

5.Check Ground connection:
Lenght of wire, Gauge of wire, Ohm to ground
6.Check battery lead: Distance of fuse from battery, Solid fuse holder mounting
Good terminal connection at battery , Gauge of wire, Proper routing(Grommets, heat) , Resistance to ground Ohms(infinity)
7.Speaker leads: Proper gauge, Resistance to ground,eachlead Ohms(infinity)
8.Speakers: Insure proper wattage rating for amp
9.Head Unit: Grounding of unit separate from low level wiring , Ground fault and ground loop , Low level signal routing (away from D.C. wiring)

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Troubleshooting

This troubleshooting guide is intended to assist you with certain
problems which may occur. If you still encounter problems, see your
Authorized HOLLYWOOD Dealer for assistance.

PROBLEM
Amplifier will not play Remote Turn-on light is off.
SOLUTION
1. Check the DC voltage at the amplifier's B+ terminal with a voltmeter. The voltage should measure between 11 .5V - 1 5.5V.
If voltage is not found, check the battery, fuse, fuse housing and wire connections. Fix, repair, or replace accordingly.
2. If the amplifier still does not play, check the voltage at the amplifier's remote turn-on lead. The voltage should measure between 11 V - 1 5V.
a. If voltage is above or below the prescribed measurements,
check for proper connections and have the head unit checked by
an Authorized HOLLYWOOD Dealer.
b. If the remote turn-on current draw from the head unit is connected to multiple amps and/or electronics, the current draw may be too great. Check for proper connections. (Use a relay to suppress the excessive current draw.)
PROBLEM
Amplifier will not play Remote Turn-on light is on.
SOLUTION
1. Unplug the head unit and test the amplifier with another working source unit(i.e., bench-test radio, walkman, etc.). If the amplifier plays, check the in-dash leads for cuts, breaks and/or shorts.
2. If the ampl ifier stil I does not play, disconnect the existing speakers and connect a set of test speakers to the output of the amplifier (any type of speaker will do - i.e., simple home box type, bookshelf, raw speaker, etc.). If the amp plays, check for shorts or blown voice coils in the vehicle's speaker system.

PROBLEM
Amplifier gets too hot.
SOLUTION
1. Be sure the amplifier is properly mounted. You should be able to place your hand a few inches above the amplifier housing and feel the heat rising when the unit is on.Hot air rises. Consequently mount the amplifier with the heatsink fins aligned vertical Iy. Th is allows the air to flow freely, carrying away the heat. Check to see that the heatsink fins are free of any obstruction (i.e., carpet, seats etc.).
2. If#l does not solve the problem, check to see that the impedance of the overall system is not less than 2 ohms stereo or 4ohms bridged/ mono. Using an AC impedance meter , sweep from 20 Hz-20 kHz, and look for dips below 2 ohms.
Be sure to test the bass region (20 Hz - 150 Hz) of your system. If the ampl ifier is bridged to those speakers, the load the amp sees is one-half (1/2) of the reading on the AC impedance meter.If the impedance level is below 2 ohms, check for a bad speaker and/ or crossover, proper usage of passive crossovers or shorted wires, or try rewiring the entire system.
PROBLEM
Amplifier noise (Turn-On Pop)
SOLUTION
1. Disconnect the RCA plugs from the amplifier and recheck the amp by turning it on and off with the source unit. If turn-on pop goes away, connect a delay turn-on module to the amplifier. See your Authorized HOLLYWOOD Dealer for more information.
2. If the noise persists, disconnect the turn-on wire from the head unit and use a different +12 volt power source to turn on the amplifier (i.e., battery direct). If the noise is gone, use a relay to switch +12 volts auto power from the clean power source.

PROBLEM
Engine Noise (Whine)
SOLUTION
1. Disconnect the speakers from the amplifier. Connect a test speaker to the amplifier output terminals. If the noise goes away, check your speaker leads, speakers and crossovers.
2. If the noise persists, use a "shorting plug" to mute the input signal at the amplifier. If the noise goes away:
a. Bypass all of the other equipment (i.e., crossovers and equalizers) and connect the head unit directly to the amp. If the noise disappears, reconnect the equipment one piece at a time, being sure to test for noise after each piece is installed. Logic indicates that the last unit installed when the noise returns is the culprit. Refer to the unit's owner's manual for more information.
b. If the noise persists, run a new RCA line from your head unit to the amplifier. If there is no noise, replace the RCA cable.
c. If the noise is still present after replacing the RCA cable, run the RCA cable on a different route.
d. Isolate the grounds on the head unit so that there is only one grounding point. If the noise disappears, install the radio, using only one (1 ) grounding point. Isolate the radio chassis from the grounding on the dash, and use an antenna grounding loop isolator on the antenna. If noise persists, see your Authorized HOLLYWOOD Dealer.

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Hollywood sound labs philosophy

From the Team:


«hollywood because life's to short for excuses!»



At Hollywood sound Laboratories we have made a committment to providing the finest car audio loudspeakers in the world. Completely manufactured and designed in the United States, Hollywood subwoofers have become some of the most demanded car audio product in the U.S. and abroad. This same committment has now been implemented with Hollywood amplifiers.

Our complete in-house tech and support Team will always be ready and waiting to assist you in any way.

We would like to thank you and congratulate you on you purchase of America’s Best Car Amplifiers. With this purshase, you are assured of our ample support direct from qualified factory personnel.

Again, let us thank you for helping make hollywood America’s best.



The hollywood team

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Hollywood sound labs Suggestions

remember that this hollywood amplifier likes to bedrive hard. Whenever possible always choose the TRI-MODE system. With the extreme flexibility of the HOLLYWOOD amplifier, we highly recommend that you carefully design the entire system BEFORE its installation. Remember, at HOLLYWOOD SOUND LABORATORIES, we don't just manufacture mobile electronics, We also manufacture and sell high quality SUB-WOOFERS, BASS-TUBES, high quality MID-RANGE and TWEETERS, active and passive CROSS-OVER with up to 24 db slope frequency!
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Last modification : 15-04-1997.

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