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How do I fix konzert av 502b ampli with no output on both channels?

One fuse 10 amp blown but no sound on both channels. There is sound when speakers were connected to the center speaker connection at the back of the unit.

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It is burnt

Posted on Apr 10, 2015

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1 Answer

Fuse blown konzert karaoke amplifier av 502b


first you need to check the fuse to the load down to the power transistor. a shorted power transistor. can blown the fuse. and have some fun to check one by one.... then you see the defective thank you...

Sep 08, 2015 | Audio Players & Recorders

1 Answer

Konzert amplifier av 302


200 watts is the output, home use or commercial? not a good amp to run at its max as it has a low reserve headroom. for home use 100 watts rms is more than enough.

Mar 08, 2014 | Audio Players & Recorders

1 Answer

Konzert amplifier av 302 can i use 4pcs of 200watts speaker in that amp


It depends on the impedance of the speakers, if you use (2) 8 ohms speaker on each channel the load will be 4 ohms if you use (2) 4 ohms the load will be 2 ohms , check and see what load the amp can handle.

Dec 12, 2013 | Audio Players & Recorders

1 Answer

Black diagram of av-502a


front: 500 watts/channel
surround: 30 watts/channel
center: 30 watts

Jun 22, 2013 | Audio Players & Recorders

1 Answer

What is the specs of konzert av-502 amplifier


input voltage: 220vac
500 watts /channel
5 channel output
pro logic surround decoder
single output digital delay
w/ karaoke function

Aug 08, 2011 | Car Audio & Video

3 Answers

How can i upgrade my av 302 to becomes best as konzert av-502


Hi,
upgrade your 302 to 502 need to replaced the toroid transformer, set of output amplifier, set of electrolytic capacitor.
Purchasing of these parts one-by-one is much expensive rather that you buy a brad new Konzert AV-502. Also upgrading the unit is quite tech and need a lot of experienced in electronics.
Hope that it may help you.
Have a nice day.
JDVillanueva

Jan 31, 2011 | Audio Players & Recorders

2 Answers

Car Ampli Problem


forget hooking this on a subwoofer. this amp produces only 50 watts per channel at 4ohms or 70 watts per channel at 2 ohms RMS...
If you try bridging the sub, it will only give out maybe 100watts bridged.
So..... if your sub is, lets say 1000watts RMS, youre just going to bust your amplifier to smoke...
Find a more decent and powerful amp. This amp is only intended for separates and lowend subs with an RMS of 80 to 150 watts

Sep 08, 2009 | Eclipse EA3422 Car Audio Amplifier

1 Answer

No sound out of left speaker


did the left channel work when u switched speakers, if so then the left speaker or wiring is a fault.if not then the output circuits on the amp are blown or the fuse is blown some amps have internal fuses in the output to protect the output transistors. unplug the power cord and take the cover off, look to see if u can find any fuses and check these for continuity u can hold these up to the light and u should see a fine filiment in one piece and not broken. these fuses sometimes blow just from age and use at high volume like a regular light bulb.If the fuse is blown replace with the same value else the output transistors will need to be replaced most likley along with the drivers.

May 19, 2009 | Sony STR-DE135 Receiver

1 Answer

Speaker outputs blown on 4 channel amp


the outputs should be replaced in pairs, there are 2 to 4 pairs, but you sould only need 1 pair replaced. these transistors typically range between 10 to 30 cdn each + labour, look for 1 to 1.5h to replace & test the unit after repair. check your local repair shop for their rates. good luck

Nov 05, 2006 | Kenwood KAC-728S Car Audio Amplifier

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