The following manuals have been structured with the concept that there are multiple faults in the unit under test. The basic concept is “first things first”. If you follow the process as presented in the order of the document, you will greatly reduce the chances of misdirection and running in circles.
Need a fresh look at troubled radio? Contact me, perhaps we can work it out together. Use the CONTACT page on this site. Or, if I am in the shop/lab I will be monitoring 146.52MHz and 3.960MHz