hello everyone my name is rosky ... i have a problem with echo effect in the sense that it works, but the reverb is low enough not as powerful as i remembered ... the radio was stopped in a garage well protected in its original box and original manuals and cables ... it was put aside because it had problems with the cassettes that turned badly ... then after more than 30 years I got the ball to put it back in the middle, the radio is like new without a scratch I repeat as new not for anything else but I think it is impossible to find very few like this ... the second problem when I go into manual recording the levels are the same while if I record in the car the left channel is lower ... it will only be necessary to clean it well according to you? like potentiometers and disassemble it and wash it well all the pieces with deox? ... can someone help me solve the problem? ... thanks in advance