Kenwood KA-5090R T.R.A.I.T Stereo Amplifier Crackles

[oszkar]

Hello!

My Kenwood KA-5090R T.R.A.I.T Stereo Amplifier Crackles from time to time on nomather what imput source only on left channel! A few weeks earlier no channel was working but after a little, the channels started working again! What should I do?
Thanx!

 

[oszkar]

Here is a pic, so that it goes in tune with the thread's discution!

 

[sgrossklass]

Someone move this to Solid State please.

If the crackling is not volume dependent, the cause is likely to be near the input of the respective power amplifier, probably a bad solder joint or (less likely) bad transistor. Finding something like this can be a royal pain. You may want to consult an experienced repairman, who'd have an eye for soldering quality and could redo suspect joints quickly.

(Don't get me wrong, but if you're showing us a photo with not even the lid off, chances are you're not a repair wizard.)

 

[oszkar]

I have opened it this night and tapped each relay with the screwdriver and it is the right side relay! I just can't take the lid off!

 

[oszkar]

Ok took the cover off and the relay makes no contact! It does not switch eighder when switching to Speakers A! What should I do?

 

[PetruV]

Crare full with metal things into powered amplifiers,you can short something out

 

[east electronics]

Written in a a small plastic bag with peanuts given as a treat inside an airplane :

CAUTION : contains peanuts !!
INSTRUCTIONS:
1)Open bag
2) Eat peanuts

Replace the relay ....

 

[oszkar]

Many thanx!

 

[oszkar]

Problem solved! Thread closed! Thanx!