Question about Ultra Linear Car Audio & Video
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Posted on Jan 02, 2017
SOURCE: ultra linear ul-600hc
If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, do the following. I'll assume that you've checked the amplifier's on-board fuses.
With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.
If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp almost certainly has shorted output transistors and will need to be repaired.
Let me know if you have any other questions.
Posted on Aug 26, 2008
If you run the remote from the battery you will need a on/off switch. Sounds like the amp is overheating. Also, I don't understand bridge the remote and power. They should be seperate going into the amp.
Posted on Mar 01, 2009
SOURCE: Modulation with my linear
the radio you are trying to fry your amp with is driving the amp to hard. that radio has a toshiba 80 watt final inside the radio you are killing your radio with the dead key at 2 watts it causes the final to overheat and shut down because it is not built to be turned down that much. its best to turn the radio back up and use the radio.
Posted on Mar 08, 2009
Could be overheating or a bad ground. Could also be a cracked tube or other internal part, that is expanding under heat and failing out.
Posted on Apr 07, 2010
that will most definitely be the best amp you will own and the only amp you will ever need to purchase.
Posted on Jun 11, 2010
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