Uniden UH-001 UHF Radio

[Ashhhhh]

Hey all,

I've picked up one of these for free and am attempting a repair.
The main issue ive found so far is that the typical old corrosive/conductive glue had damaged some diodes, which ive replaced.
I've also replaced the main filter caps which were massively out of spec and leaky.

The current situation is that it wont go into transmit mode when pressing the mic button. Pressing the "tone send" button does light the transmit button and it outputs power.

Looking inside, its almost like its been modified. For what end, im not sure. There is daughter board which doesnt look factory with a wiring header that looks hacked about.
Does anyone have one of these that they could photograph for me? Alternatively a high quality schematic would be great, the one I have is too grainy to be of any use.

Cheers
Ash