Question about Cadence A7 HC Car Audio Amplifier

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Cadence A7 HC not working

I got a Cadence A7 it does not want to work. Goes directly to diagnostic.



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  • makjr13 Aug 18, 2008

    I was just thinking of paying to get it fixed because i don't want to try fixing it. I am scared i might just mess it up more.


  • izzy2526 May 11, 2010

    My amp fried my ground wire on my wild beast sub. I resodered it back and hooked it back up and now it keep going to diagnostic. Even with it not hooked up. What should i do. should I send in please reply soon. thank you.

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  • Master
  • 631 Answers

If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, read through the following page:

Amp in Protection - Troubleshooting

Let me know if you have any other questions.

Posted on Aug 18, 2008

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1 Answer

THE PROTECTOIN AND POWER LIGHT KEEP FLASHING ON AND OFF


The prtection light normally responds to impedance problems with speakers....try diconnecting all speakers and see if situatioin continues,.........with the power light, ensure that you have proper grounding of the a,mplifier as well as insulationa dn fuse protecxtion mounting for the powe supplies

Sep 27, 2010 | Cadence A7 HC Car Audio Amplifier

1 Answer

No problem what to do


i go with the diamond d6 1200.1 for surejust make sure you can get those subs in 1ohm and if you want a 1200 watt class d id look in to planet audio they make real good amp for for half the price of that one

Apr 02, 2010 | Diamond Audio D6-1200.1 Car Amp

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I am working on putting together a kick *** cadence system but I hear they are going out of business, is that true?


It is NOT true.
CLICK HERE for their website.
They are still producing and developing new products.
Cadence Innovation - a parts builder GM sued is out out of business.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Feb 28, 2010 | Dual Car Amplifiers

2 Answers

My subs don't bump to the beat, they just go THUMP THUMP THUMP...


It sounds like you need to ask for pro help mate, mybe the amp just needs setting properly, Is the amp on bypass for bass, or does the amp run the complete system

Jun 13, 2009 | Cadence TXA 750D High Power Mono Amplifier...

2 Answers

Have a a7 Hc... Blown transistors.. Shematic diagram??


What are the part numbers on the transistors you replaced?

Did you replace transistors in the output section and the power supply section?

Does this amp have the defaced ICs labeled B52 and F16?

Jun 21, 2008 | Cadence A7 HC Car Audio Amplifier

1 Answer

Diagnosis light


It could be an overheating or power issue. It may be that the two speakers are loading it too much, which will cause it to overheat. Does the light eventually go off and the sound return ? Do you have the speakers wired in series or parallel ? What's the impedance of the speakers and the minimum continuous load for the amp ?

Nov 20, 2007 | Cadence A7 HC Car Audio Amplifier

1 Answer

Mine is actually a q4000 4 channel amp


First of all, you MUST HOOK UP YOUR GROUND WIRE FIRST. You may have damaged it if you hooked your power and trigger wire first and then the ground wire. Unhook EVERYTHING except the hot wire, ground wire and trigger wire. If you still can't get the unit to come on then it is time for a trip to the repair shop. Good luck.

Feb 01, 2007 | Cadence Q200 2 CHANNEL POWER AMPLIFIER...

1 Answer

Cadence FX500


The FX500 is 4 x 75 watts clean and 1 x 500 watts RMS @2 ohm mono. What subs are you running and what are the ohms per voice coil. Single or dual voice coil. By what you said (not getting hot) sounds to me like the load istoo much. Let me know.

I was/am a Cdence daler and I sold many of those amps without a problem Never had a bad one!
Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

Dec 05, 2006 | Cadence Z9000 Car Audio Amplifier

1 Answer

Cadence z1200 stays in Safe Mode!


If the subs are rmoved from the amp (wiring), does the amp still go into protection without them hooked up? If no, shorted sub, if it still des, unplug RCA's, does it still go into protection? Also check voltage. Make SURE you have greater than 12 volts AT THE AMP using amps ground to check the power AND remote wires. Hit me back wth an update.Those amps rock.

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

Sep 17, 2006 | Cadence Z8000 Car Audio Amplifier

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