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Pls check burnt resistors, if ceramic it's value is .25 0hms 5 watts, if big carbon film resistor it's value is 10 ohms 3 watts. check also power transistors A1941 & C5198. also check driver transistor A940 & C2073

Posted on Jul 02, 2013


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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

2 Answers

Why av-502a karaoke amplifier no sound on main speakers but sorround and center have sound

Check the main speakers. If found OK, check and replace damaged components at the main power amplifier circuit. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".

Jul 13, 2014 | Audio Players & Recorders

1 Answer

Konzert model AV 502A

Disconnect the speakers, all of them. If the fuse continues blowing off, you have a short circuit in the final stage of the device, called the amplification circuit. If the does not blow , then the short circuit in is one or more speakers.

Jan 18, 2014 | 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

Can i hook-up the konzert 502A to AV Reciever

yes you can, just select the audio source to cd/dvd and use stereo rca cord.

Dec 03, 2012 | Audio Players & Recorders

1 Answer

Just asking for a right speakers for konzert 502a

What actually is Right is for you to decide:

These will be dependent to what you intend to use.

If these unit will be used for Karaoke , suggestion could be

using Single 15" Konzert Speakers for each channel or

Dual 12" Konzert Speakers for each channel.

But if you intend to use it in a small room , you can visit the

showroom in which speakers are connected to it, to have your

final decision.What may be best for others may not be the one

you choose.Listen and feel what you like .

Have a nice day!

Nov 03, 2012 | 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

1 Answer

I have a konzert amplifier av-502 that has two burnt resistor r130r and r130l. could you please let me know the value of the said resistor thank you very much.

Is it the resistors near the relay? that would be 10 ohms. You may replace it with a higher wattage (like say 5 watts)

Aug 02, 2010 | Audio Players & Recorders

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