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Question about Jl Audio 500/1 Car Audio Amplifier

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Power when i power it up it only stays on for about 15 seconds then powers off. when i hook up my 300/4 it stays on fine

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Bad ground.

Posted on Sep 06, 2007


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Related Questions:


I have an MTX audio JH 300 amplifier. When I turn the power off from the amp the yellow light comes on and stays on continuously. after about 15 minutes listening music amp shuts off, why

the light stays on because the amp is still storing power. it only turns off when the capacitors on the inside have drained off all the extra power

Timer will not tirun on the lights, it stops when it gets to the time to turn on.

Malibu home page
Malibu manuals

Try the manual override >>> un-plug power pack and try loosening manual override with WD-40

It sounds like the clock motor is unable to push the manual override
Don't continue to run power pack or the clock motor will burn up or break a plastic gear

If manual override will not work, or clock will not trip on lights, you need a new power pack
Power pack size chart and wire length

Be sure to buy same wattage power pack as you have
The 300 Watt unit is made for 15 - 20watt bulbs (15 x 20 = 300)
If you buy 600 Watt power pack and hook it up to 10 - 20 watt bulbs, it will burn out the bulbs
Manual also says to replace burned out bulbs ASAP or other bulbs will burn out.


Can you hook up two 12 gauge cables to the power pack of the ML 300 RTW transformer. Power cable would run in different directions. Thank you Joe

Hello yes you can the Important thing to remember here is not to exceed the wattage that the transformer puts out.

Add up the wattage of each bulb that you are running and ensure that you do not exceed 300 watts.

for example a 300 watt transformer could drive
a. 10 - 30 watt bulbs
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c 75 - 4 watt bulbs

Its also ok to mix bulb wattage for example I use 10 watt bulbs in the fixtures in the front of the house but also power 4 20watt spotlights from the same transformer.

Hope that helps


Battery won't charge on my 3250

try the reset first, its the little pin hole on the side, hold it in for 3 seconds you may also press and hold the power button for 10 seconds...if those fail, hook it up to your pc via the usb cable and if it will stay on, go to the link below and get the lateset update for your model.
its possible it has a software or hardware problem and reset or update could repair it, but its not likely. this model and a whole lot of others are none for the usb port going bad and they are not feasible to repair.


I have a RCA D52W20 52' It will turn on fine but after waching it for about 15 or 20 minutes it will blink to black and come back on for about 5 seconds then do it again then power off compleatly. You can...

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