Question about Sony STR-GA7ES
My right speaker channel (Front Speaker) is going bad - the audio is there but it's breaking up and has a static-type sound. I swapped speakers, speaker wires, changed selection from Speaker A to Speaker B, and I get the same result from either TV, radio, or CD player.
Thanks for your help!
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Posted on Jan 02, 2017
SOURCE: Left channel out
probably I would say no. Unless you know how to read a schematic or know how to do certain small static checks on the output devices and the drivers as well as the power suppy feeding these devices.
Posted on Apr 05, 2006
I think you mean the left channel is out but when you use test tone, the sound comes from left and right channels through the right channel speaker. If this is case, the switching IC is malfuncting. Unit needs service
Posted on May 01, 2008
If you have checked the speakers and wiring, the right channel has a audio driver or output problem, which explains the low volume, static, and distortion. A service technician will be required to fix the receiver so it will balance the left side.
Posted on Jan 10, 2011
Inside the Receiver there are electronic components mounted on the aluminum
heatsink ( Audio Output Power Transistors )
it may looks like these :
MN2488 ( Q753 )
and usually paired with MP1620 ( Q754 )
You may have to check on those two pairs of power transistors
and replace in pairs.
( which means if any of the two is bad , have them both replaced )
Check also the audio signal on the right channel input , if it
is on the same level of those of the left channel.
These components are available at:
Posted on Feb 22, 2011
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