[TenTec] Herc II and 9420 PSU

[JACrux]

Whilst the xyl was out I got the 9420 into the kitchen and took a peek inside. 
One of the 14v rails is very dead - the wires at the terminals of one 47,000 
mfd capacitor look as if they have been running hot. Now I have the capacitor 
out and on the table, I can see the top is cracked and the + terminal is 
corroded. The cap itself It shows an internal near short. So no wonder the 
wires to it look well cooked. 
OK so I need a new cap from somewhere. But before I do more disassembly, 
I wonder if anyone out there has seen this before ?  And how much damage did 
it do ?
The transformer seems OK, but I guess the regulator card and pass transistors 
are fried, maybe also the bridge rectifier. I do have spares; maybe its best 
to replace everything in that leg of the supply ?
Now to move the thing out of my xyl's way ASAP ! She is due home shortly.

The good news is that the Herc II may well be OK ....................... sigh 
of relief. Power supplies are almost within my feeble brain power.
73  John G3JAG