sony ta-fb940r qs,left channel hardly there.

[paul.42]

picked up a sony ta-fb940r qs real cheap,and left channel very quiet and mushy,any ideas??

[sgrossklass]

Since it does not go into protect mode, the problem can't be too severe. Does it occur with all the inputs? Check for contact problems e.g. in source-direct and tape monitor switches. If the issue is much less severe when using headphones, you probably need a new protection relay; also take a look at the speaker terminals' solder joints.

[paul.42]

Originally Posted by sgrossklass

Since it does not go into protect mode, the problem can't be too severe. Does it occur with all the inputs? Check for contact problems e.g. in source-direct and tape monitor switches. If the issue is much less severe when using headphones, you probably need a new protection relay; also take a look at the speaker terminals' solder joints.

ok ,will try those points first.thank you.

[paul.42]

Originally Posted by paul.42

ok ,will try those points first.thank you.

have also find that the bass control knob is pretty near seized,could this be the problem.

[paul.42]

Originally Posted by paul.42

have also find that the bass control knob is pretty near seized,could this be the problem.

it is also a 900k unit,and cant seem to find a match through RS or farnells,what could i replace it with.??

[paul.42]

Originally Posted by paul.42

it is also a 900k unit,and cant seem to find a match through RS or farnells,what could i replace it with.??

any one.