You've been close to another big radio......you think that was a question but I believe it is the answer. The rf amp transitor or the diodes in that circuit have been damaged. So that stage of amplification is not stepping it up for the next. Resulting in the electrical power converted to air audio by speaker isnt available. Cb shops refer to this as a blow front end. Tr17 is the transistor location .......just a side note some radios have a mic circuit check that dulls audio levels this is not the case here.
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You've been close to another big radio......you think that was a question but I believe it is the answer. The rf amp transitor or the diodes in that circuit have been damaged. So that stage of amplification is not stepping it up for the next. Resulting in the electrical power converted to air audio by speaker isnt available. Cb shops refer to this as a blow front end. Tr17 is the transistor location .......just a side note some radios have a mic circuit check that dulls audio levels this is not the case here.