Good evening companions. Today I was given to clean the electronic part of the pssacassette radio with isopropyl alcohol. I have noticed that the stations are running. Just tune in when the dial is in the middle. The. 570 on the 800 visual dial. I have disassembled it, run the dial to 570 and arm it again but I don't fix it. It seems easy but it got complicated. A hug

Good night, if the dial wire is good and does not slip and the base of the variable capacitor steering wheel is good and whole, it may be due to a calibration problem which you can do in the flat screw (trimmer) settings that are located in the variable capacitor, 2 are for AM and the other 2 for FM, of which the 2 of fm one is for the antenna and the other is for the local oscillator and the same is for am. For example you can calibrate with the radio in fm you place where the stations start to pick up, then you give a small adjustment to the left or right and the dial is running where you want to slide a few and turning that screw more until you reach the Start point and you will notice that the seasons change when you turn the trimmer screw. You can guide yourself from another radio in good condition by locating the first station of the dial at 88 mhz while you are calibrating the radio you are repairing and so you are not wrong in the first station and with this the last station at 107 mhz is automatically fixed. The image below is with a more common variable capacitor used in old radios, now there are other capacitors still older in which the screws are elsewhere. Now in am it is another procedure the adjustment is in a coil similar to the fi transformer and it is rare that both AM and FM bands have been moved. With this you can correct the dial of your receiver, if in all attempts it does not work the last thing you can resort to is the change of this variable capacitor because it was affected or damaged, the replacement must be of the same similarity.