My amp has some darkening around the power input area on the PCB. There is a resistor (gold, black, black, red) -- cant read what one it is) but is in near Q50, Q51 and C35. Those two transistors and the cap all look to be heated as well.. And the resistor reads bad. Is there a place to send these for repair.
SOURCE: Green light blinks slowly on my JL Audio 300/4 amp
Check your fuse at the battery. While AGU glass fuses "look" good, when you read the voltage AFTER the fuse, you can only be getting 5 volts or so. I can't tell you how many times I have seen this.
Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html
SOURCE: jl audio 1000/1 low voltage -keeps shutting off at high volume
You should definitely upgrade the power wire to the sub amp to 4 gauge -absolutely your choking your amp its starving for current-poor thing is starving !!!!!!!
SOURCE: will a JL audio 1000/1 amp run a orion HCCA 15
Hello evopower,
The JL 1000/1 will power the Orion HCCA OK.
It is stable only to 1.5 ohms so your best choice would be the 15.4 with dual 4ohm voice coils. In parallel, this would offer a 2ohm impedance. The 15.2 could only be wired for either a 1ohm load (too low) or a 4ohm load (less power).
Hope this helps.
SOURCE: JL Audio 500/1 Amp
Do you get sound if you set it on full? If you don't get sound in any way it maybe broked. Do you smell burnt components? Is the protection light on? If so you probably have a shorted transistor inside. If everything looks normal but has no sound at all. The preamp circuit is probably not getting power due to a malfuctioning power supply circuit. The way a car amp works is it has a DC-DC converter, which steps up the 12 volts to two supply voltage. One is usually a -35V, an the other is +35V. To a totall of 70V. Power transistors don't operate efficiently on 12 volts thats why it is designed like that. A PWM (pulse width modulation) circuit which consist of a chip, and various components connected to it drives an array of Power FET(field effect transsitors) usually conected in parallel to add power. These FET drive two or more "powder iron core" transformer. The other side of the transformer is connected to large diodes, providing power to the transsistors that actually drive your speakers. The supply voltage to the section preamp section is usually the same as the battery voltage. This preamp section filter high frequency for things such as low pass, high pass etc, and through many stage of amplification using small transistor, the final stage is the large transistors that drive the speakers. If you can tell me more info I can help you with a step by step guide on fixing the amp.
SOURCE: I have a JL Audio 500/1 and when I hooked it up it
I have the same amp also. I was playing with the switches and found out if you look rite by the gain level their is a switch that says low/high voltage, make sure its on low. You will only use it on high voltage if you want too use the rca output only. It mite work for some of you and some of you it mite be internal problems.
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