[R-390] Front Panel Diode Load

[Bill Coleman]

I'm refurbing a basket case R-390A. Getting ready to install the front 
panel & I have one dangling shielded wire in the harness.  It's near the 
1/4 phone jack, the shield is connected to the jack's ground lug and the 
center conductor has no home.

I'm pretty sure this is the front panel diode load, but I get no 
continuity to the rear diode load connection. I don't see the front 
panel diode load in any of the doc that I have. 

Anybody know for sure?

THANKS!

73, Bill  N2BC