Sony SA-WX700 Subwoofer "preamp repair" Questions

...the speaker or can this be repaired? ur sub wont buzz due to bad speaker. either u have a faulty preamp or power amp. yes it can be repaired and will not cost much. if it is loud and annoying, get ...

...repair shop to look at the subwoofer amplifier. The HTS20 has a power switch so without power, there should not be any hum from the unit. Interestingly, hum, buy its nature is hard to localize so you ...

...that supplies +-15 volts to the preamp section. If you are not familiar with electronic circuits you could still ask a repair shop to verify those large capacitors. Hope this help and happy

...repair shops wont fix it down to the component level, they just want to replace the board. any idea how much that would cost? should I just buy another sub... I must say I'm dissapointed with Sony as ...

...preamp damage. Try taking them away from the system and using a completely different source like the output from a CD player/MD/ even video with a new cable. That will tell you if it is the speakers ...

...me with that? Best regards, Jul Sounds like (no pun intended) the amplifier circuit in the speaker is bad. When you use the headphone the amplifier is not used - only the preamp. It will need

...sound, home theater, type of receiver, the theory is the same, but the connection is through the preamp-out/ main amp-in section of the receiver. Not all receivers have this feature. Most, in

preamp PCB. As a consumer, if the fuse is blown, unless you are familiar with soldering techniques and troubleshooting electronics, leave this to the pro's. It isn't as easy as you might think and you

...preamp. whats happening?? have your built-in amp checked for trouble. there should be trouble in the output stage feedback loop. this is something to be done by a repair technician Hi Tom, I have the ...