1972 Sony Trinitron portable

[Kiwick]

Hi you all,

I've just fished a 1972 sony KV-1300E 12" trinitron portable out of a dumpster,

It displays a blank raster and no sound, someone has messed up the IF board badly, a couple of transistors are missing, there's a lot of shoddy wiring, lots of hot glue and a small makeshift circuit with an IC wrapped in electrical tape and hot glued to the IF board... now i will have to clean up that mess and return the set to its original conditions

Maybe someone has a schematic of the IF board?

Francesco