Question about Lightning Audio LA1.300.2 Car Audio Amplifier

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Overhaul light (red) stays on!

I have had my amp for a year now and it has been working fine. Sometimes when it gets hot the red light will come on and I just shut the stereo off and cut it back on and it is ok (needed to lower the gain). Now I have a problem where the light does not turn green when I shut the power to the stereo off or lessen the gain on it. It just stays red. Please help! Tipster14

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Re: Overhaul light (red) stays on!

Check the Ohm measurement of your speakers. See if they are about 4 Ohms. The More speakers you stack on an output, the LOWER the ohm ohm Meaning MORE current and heat.
Try stacking fewer spekers on each output and see if the amp runs cooler. However, if the protect light wont go out after you troubleshoot, the amp is damaged and probably meeds some new output transistors. You can search the internet for exact replacement transistors. Make a diagram of where they go and get the right ones in the right places and it should go. If it doesnt go, it might need new power supply transistors as well.

Posted on May 27, 2008

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Re: Overhaul light (red) stays on!

This is not a ovehaul light. It is called the protect indicator. It kicks in when the amp detects a fault on it's output. Disconnect the speaker / sub. Power up the amp and see if the light goes out. If it does you Sub is toast and needs to be replaced. If it stays on then the amp is done.

Posted on Jun 29, 2007

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