I had a customer take a President Bill II and plug the cig lighter into a 24V plug on a loader. He said it got a little warm
. Now there is little reason in putting time into a radio that can be replaced with a new one far cheaper than the time to repair, but I still had to tear it down. This is the top side view after you remove the board from the frame.From left to right working up,
Q107 2SA2022
U10 L7807CU
Q 30 2SC2314 driver
Q29 IRFZ24N final
There is no TX power but Rx is good as well as all other functions of the radio. The service menu is still operational.
I'm a gambling man and going with the A2022 getting toasted with 24V.
Though you might like to see the pic.
Not sure if I'm going further.