[mcjefferson]

I have this japan stereo amp yamaha ax-500 gave by a friend, when i first use it i didnt notice anything unusual(the amp is 100v i did plug it in 110v). the next day it made a static and popping sound but not very loud i can still listen to my music it only appears when theres no sounds coming from the source, you can here it i think every 2-3mins and it will gone and then came back again. even when theres no source connected it will appear. i try my speaker in my avr and everything seems to be fine. i just bought today a stepdown transformer for this amp.


I also took some pictures inside the amp.

 

[mcjefferson]

can anyone tell that theres something wrong in the picture? i'm starting to like the amp and keep it, do i need to send it to repair shop?

 

[JBWIII]

Based on what the guys in the forum below are saying, that yellow stuff is probably glue. If your caps are blown, you might not be able to tell just by looking at them.

http://forum.allaboutcircuits.com/ne...ic.php?t=70335

 

[mcjefferson]

thanks JB


would you thinkthat possible cause is my speaker is under power(rti a1)?

there are days when i'm using it approximately 3hours the cracking appears 3-4 times.

 

[mcjefferson]



Quote:
Originally Posted by mcjefferson /forum/post/20957142


thanks JB


would you thinkthat possible cause is my speaker is under power(rti a1)?

there are days when i'm using it approximately 3hours the cracking appears 3-4 times.

need infos guys

 

[JBWIII]

I've asked a few technical questions like this on this board that went unanswered. Most of the people here are consumers, not engineers. I'd take it to an electronics repair shop and have them try to diagnose the problem.

 

[phantom52]

Sounds like a leaky cap. They can be changed by a repair shop. Labor should be more than the caps cost.

 

[stangjason]

When I think of static I think of something like dirty contacts in a dial or something like that. I don't know the technical term for it though. You might pull any knobs off and clean around and inside it.