My almost 30 year old Yamaha receiver RX300 had this trick for a long time - the use of a second system but it was not so important if here and there turned out the left channel. By turned around somewhat on balance control and with a little patience
Have injected the funds into the source input rotary switch of a 15-year-old Yamaha stereo and switch actuated several times. This was followed again a flawless transmission of sound without noise and scratching. Alternative would have been the renew
The Teslanol Spray is an effective means for cleaning electrical contacts. The size of spray should be chosen so that it is used up over time, since there is a loss of blowing gas repeatedly.
