[TenTec] Scout 555 - no output

[Michael Fishman]

Hey all - new guy with little electronics xp hoping to find a solution for a Scout that won't tx. Happened suddenly - simply no output out of the blue. Have tried multiple power sources, antennas and band modules - same across the board.
Read something about bypassing finals to narrow down possible issues, but instructions weren't very clear to someone who is new to hardware issue diagnosis.

Any ideas welcome!

Very 73, Mike NK8S

Nasty Kharybdis 8 Sailors
FISTS #17907 NAQCC #8554 SKCC #15862T​
ZUT!