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-   -   audio control series II eqx will not power up (http://www.diyaudio.com/forums/car-audio/105252-audio-control-series-ii-eqx-will-not-power-up.html)

02ss 15th July 2007 02:51 AM

audio control series II eqx will not power up
 
I have an audio control eqx series II that for some reason or another will not power up . Checked all connections to unit 12v ground and remote turn on wires all seem to be good . I would like to fix this unit myself. Anyone have a wiring schematic or some insight into what I should check on the circuit board? I am a newbie with electronic repair.

1moreamp 15th July 2007 06:33 AM

Send it to Audio Control they have reasonable rates.
The power supply is not complicated, but if your new it will be up hill to tech out.

I have seen bad caps cause it not operate, I have seen these get Reversed polarity put to them and this causes a whole bunch of possible failures. ( burnt traces, to blown up transistors and chips)

I have seen the power transformers short out on these a lot, and thats a Audio control only part, so you end up going to them for that part for sure.

My friend has one now that needs a transformer. These also use a 5 pin LM series switch mode control chip this also takes a dive from time to time depending on how it was treated.

Maybe some one here has a schematic, but I would not count on it. Look them up on the web and give them a call, maybe they will release you a document. After all the thing is nowhere near new

Clipped 17th July 2007 05:57 AM

if you havent pulled the power plug out, i'd do that as soon as possible...i had an eqx that started sending out voltage through the remote wire...at that time i had it hooked up to the cars switched 12v ,instead of the radios remote out.....and couldnt turn my car off !!!

I Am An Idiot 17th July 2007 11:24 PM

I am not sure about this, but if you remove the cover I think you will find a fuse inside.

1moreamp 18th July 2007 04:08 AM

Quote:

Originally posted by I Am An Idiot
I am not sure about this, but if you remove the cover I think you will find a fuse inside.
I Don't think so.....

Unless, your calling all the vaporized circuit traces I have seen inside them fuses ??? lol lol lol


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