Volume knob has ceased to turn down the volume. That is, regardless of the direction of rotation of the volume only increased. Disorder ...
Let's open the radio and see what's inside. To do this, unscrew the fixing screws and podkovyrnut back cover.
Remove and front cover.
To get to the volume control does not prevent us to remove the handle. Usually it is easily removed, but had some trouble here. Someone put it on the sealant. Knob folding, rests on top of the bent metal plates. They turn down and remove the upper part.
Here we see the mechanism of highly contaminated (by the way, the same problem was with faulty mouse wheel ). Wipe all friction parts (rotary switch and contacts in the form of antennae) cotton swab with alcohol. I also "round timber holey" fell off, had his stick.
We clean the joints of contact platelets and glue it into place.
After cleaning, make sure that all the rubbing "whiskers" are located exactly on the same level, then collect everything in reverse order. I broke one of four metal plates that hold the assembly volume control. Do not worry, in three will also hold. And if they were broken off, you can glue on the top of the plant, but gently so the glue does not hit the inside of the contact elements. You can go check!