Just bought a mint SONY CFS 99 locally and found that the left channel is very weak.
Fixed the deck, and now the problem is a weaker left channel.
I cleaned all the sliders and the record bar, but still the left channel (left one when you face the box) is very weak.
Also I cleaned the headphone jack as usual. It is weak on radio and tape. The VU works perfect on both channels.
Any help with this problem is greatly appreciated.