Question about Power Acoustik LT-980/2 Car Audio Amplifier

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Red Light I'm thinking of buying this used amp but when I hooked it up to a 12 volt power supply, All I can get is a red light. Any suggestions??? Thanks, Bill

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Power wire is too thin or ground is not conected to bare metal.

Posted on Jul 16, 2008

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Posted on Jan 02, 2017

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How to i find out whats wrong with my bazooka tube i tried to hook it up to a car battery and car stereo out side but wont work ???


follow this steps and fix it. GOd bless you

  • Verify that the amplifier is turning on by looking to see that it is lit up.

  • 2
    Use a voltmeter to verify your power supply is a good 12 volts by touching the ground lead to you amplifier's ground screw and the positive one to the amplifier's constant power supply screw. Also verify that you have 12 volts coming from the remote lead wire which is usually a thin blue wire between the ground and constant 12 volt supply.

  • 3
    Look for the "thermal overload" light. It is usually a red LED on the side of the amp. If the amp feels really warm and this light is lit, the amp has probably overheated from being tuned wrong or turned up too loud and shut itself down to cool off.

  • 4
    Check the fuses on the amplifier. These can blow with extended use or during heavy bursts of use.

  • 5
    Make sure the "Gain" and other volume controls are turned up.

  • 6
    Confirm that the signal wire is still attached to the amplifier and has not come disconnected by vibrations in the car. Also check that the wires running out of the amp to the speakers are still attached to the amp.

Oct 27, 2013 | Car Audio & Video

1 Answer

Fault Light/ inverter failure


the current from the 12volt supply is not sufficient try a fully charged car battery instead, your inverter needs 30 amps and above of current from 12 volt power supply

Jul 20, 2013 | Televison & Video

1 Answer

How do you make this work ???? I hooked it up I think and nothing is happening


whatever watt that amp is find a computer power suply that has same or more watts, when you get it you will notice there is a large bundle of wires that go to a 10 pin or more plastic clip. if you look at it with the clip lock facing up, you will see a green wire 4th one in from the left and black ones on both sides of it, bridge the green and the black one directly on the right of it, that is what will turn the power supply on, find your 12 volt and ground on any of the smaller clips, 12 volt is yellow 5 volt is red and ground is black, just hook your remote and power wire to the yellow and ground to ground, i recommend you hook a switch to it so you can turn it off !! and i DO NOT recommend using a power supply with less watts as you amp! nor do i recommend trying a xbox 360 power supply something WILL blow!!

Apr 19, 2013 | Audio Players & Recorders

1 Answer

Mitshubishi WD-62327 TV will not turn on and no sound. TV made a interference sound and shut off. Tried to turn it in the morning still nothing. Replaced lamp/bulb still nothing. Red light is on (not...


If you have a voltage meter there are some things you can check.
Unplug the unit and remove the back cover of the set. Then Plug the unit back in.
You will need to tape down the lamp safety switch in order to do these tests.
Here are all the failures that would give you a lamp error and what to check.
Cause 1. Unit powers on and works properly for a while then shuts off with a red lamp led(lamp error). Suspect bad lamp and replace.
Cause 2. Unit does not power up correctly and you have red lamp led(lamp error). Check the lamp enable line at connector J14 on the back of the light engine. If pin 6 does not switch to 5 volts after turn on, but your 12 and 5 volt supplies are good, then suspect a defective light engine.
Cuse 3. At power on the lamp turns on and off 3 times and then the unit shuts down with a red lamp led(lamp error). You have a defective light engine.
Cause 4. Unit does not turn on correctly and you have a red lamp led(lamp error). Check for 12 volts at connector J9 pin 4 on the light engine. If voltage is missing check for an open fuse F9A09 on the power supply board. If it is open, then you need to replace the fuse and you still have a defective light engine.
Cause 5. Lamp enable line at connector J14 pin 6 on the light engine does go to 5 volts at turn on, but does not drop back to 0 volts after 5 seconds, but your 12 and 5 volts supplies are good then you have a defective light engine.
Cuase 6. Check for 5 volts at connector J9 pins 1 and 2 on the light engine. If low or missing check Capacitors C9A37 and C9A38. Values are 3300MF/10V. Replace capacitors if defective.

This is all I have and I wish you luck.

Mar 20, 2013 | Mitsubishi WD-62327 62" Rear Projection...

1 Answer

The red lightcomes on when i hook up things to it when nothin is hooked up its green


Usually, this indicates an overload condition. I have a Pyramid 35 amp supply that has no green light but uit does have a red light and an irritating little beeper that the instruction book says is activiated when power draw approaches 90% of rated output. (Why not call it a 30 amp supply if you can't use the full 35???) Enough editorializing. You don't say if the supply actually works, just that the light changes color. If it doesn't work at all, I would start with checking the diode bridge for a blown or leaking diode. If one is bad, it can output enough to drive an LED but fail anything else. If these are good, check the filter capacitor. If this is bad, the hum could concievably confuse the regulator circuit. Next, I would check what ever voltage regulator it has in it. I can't comment on specifics as there are many schemes that can be used. My unit, for example, is like a mouse driving an elephant. It has a small 723 regulator IC, (Aprox. 100ma output), controling 4 large TO-3 pass transistors driven by a 36 volt 40 amp transformer to boil it all down to an adjustable 12 to 15 volts.
The bottom line is without knowing if the unit is puting out or not and not having it in my hand to look at, this is the best I can do. I hope it helps.
Good luck.
Jeff

Feb 03, 2011 | Pyramid 10 Amp Power Supply (068888701655)...

1 Answer

Need to install a cdplayer in 70 chevy truck?


Because of the year of the truck you will not have any wires pre-wired in the truck, go to a Radio Shack, car audio store or Best buy and buy yourself some speaker wire for vehicles, about 5 ft of 14 - 16 gauge yellow wire, 5 ft of 14 - 16 gauge red wire a couple of 10 amp fuses and 5ft of 4 gauge black wire.

You are going to run the Yellow, Red, Black wires together from the radio space where the radio sits in down to your steering column, the speaker wires will go to your speakers from the radio, a + and a - lead to your speakers and connect them as needed.

Now back under your dash you will connect the yellow wire from the radio to the 12 volt + wire under your steering columns 12 volt power wire with a fuse inline, if you hook up a test light to this wire it will light up the test light without the car switch being turned on, the red wire will hook up to your ignition switch wire and your balck wire to the vehicles ground chassis, basically ground that wire to a non painted surface of the vehicle. This radio needs to be hardwired like I explained.

Good luck and hope it helps.
Lex.

May 21, 2010 | Car Audio & Video

1 Answer

Brake Box Will Not Work


First try a 12 volt "stab in" test light pushed into the blue wire at the brake controller. Red is brake feed from the truck, black is 12 volt power and white is ground. If all is wired correctly, the blue wire should power up when you hit the brakes. Be sure to turn the controller up to highest setting to test it. When you hook the test light up, the connection indication light should come on. Then turn red when you hit the brakes. Also see http://www.etrailer.com/faq-wiring.aspx for more info.

Oct 22, 2009 | Pioneer Voyager 4000 HD-DVR

1 Answer

Power supply suddenly 'dead'


You check the power supply using multimeter. but before everything make sure the you are getting power from the power outlet.

Here is how you can check the power supply with multimeter

If the wall outlet and the power cord are good, make sure the connection at the motherboard is secure. Then you may have to face the fact that the power supply itself is bad. If you have a multimeter, you can test the power supply output before purchasing a new one. Simply follow these steps:
  1. Turn off the PC, but do not unplug it. Open the system unit. Set the multimeter to read DC volts in the next range higher than 12 volts. Locate a power connector similar to the hard drive (or CD-ROM drive connector that is unused) and turn on the PC.
  2. You can also unplug a drive connector and use it. Turn on the PC and insert the BLACK probe into the power connector on one of the BLACK wires. Touch the RED probe to the YELLOW wire on the power connector.
  3. The multimeter reading should be +12 volts. Now touch the RED probe to the RED wire and the reading should be +5 volts. If no readings or different readings occurred, you’ll have to replace the power supply. If the readings were correct, you should check the P8 or P9 connectors at the motherboard. These connectors may also be named P4 and P5. To check these connectors, perform the following:
    • Insert the BLACK probe into P8 at one of the BLACK wires. Insert the RED probe into the P8 connector at the RED wire. The reading on the multimeter should be +5 volts.
    • Check the power going to the motherboard connections by inserting the RED probe into P8 at the YELLOW wire and you should get +12 volts. Leave the BLACK wire touching the BLACK wire at the P8 connector. Check the BLUE wire and the reading should be a -12 volts.
    • Now move the BLACK probe to the BLACK wire on the P9 connector. Test the WHITE wire by inserting the RED probe and the reading should be -5 volts. Check the RED wires on the P9 connector and you should get +5 volts on each red wire. You won’t get exactly 5 or 12 volts, but the readings will be very close, such as 5.02 volts.
    • If the Power Supply is a couple of volts off in either direction, such as when the RED wire should be reading -5 volts but it reads -8 volts, or if there are no readings, replace the power supply.

Mar 22, 2009 | Computers & Internet

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