Konzert model AV 502A

defective A1943 or defective C5198 power transistors.

There must be other components that are bad causing you to blow those parts. Recheck all components and confirm their specs are normal

Program setting of the amp output is required.

Check setting of the output.

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...

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

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

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

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!