Tim
I looked up the FCC certification for the x5105 (older board but should be functionally the same) and in it is pictures of the radio supplied for the test. The schematic was excluded but the pictures show the two regulators are a 8.0v (different) and the other one is a 3.3v regulator (makes sense). ?If you give up on it try to remove the parts and put you own regulator in it or clean it up the and replace the burned parts and see if you can¡¯t put it back together. ?I have seen worse that made it back.
good luck!
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Tom
AE5NF
