hi fi question

-jellybelly-

hi, I have a Sony hi fi that is a few years old. On the back there are black and red connections for left and right speakers. the speakers I have are the ones that came with it. either speaker connected to the left output works fine but when connected to the right output it gets really loud like the sound of the pop plugging or unplugging something from a jack input but continuously, any ideas?

-jellybelly-

measuring the ohms on the left channel gives a value below one but the right channel is jumping and only gets overload from multimeter

andy1249

Youve ruled out a fault with the speakers , so now you know there is a problem with the output driver stage in the unit.

You can open it up , check for anything obvious or easy to fix , like a loose connection or dry joint , but if nothing is obvious then you are going to have to troubleshoot and replace the faulty component or components in that particular channels output stage.

For that , you will have to hunt down a maintenance manual if you can , and get a list of part numbers for that stage and see if they are available.

Quite often these days the output stage is a proprietary semiconductor device ( or ASIC = Application specific Integrated Circuit ) and may be out of production and/or impossible to get your hands on.

Check availability and the pricing of parts before spending too much of your time on it , as it may not be possible or worth it to fix at all.

-jellybelly-

thanks I might open it up when I get a chance