[Premium-Rx] Cubic R-3036 dual MF/HF receiver info wanted

[Nick England]

At a recent hamfest, I picked up a Cubic R-3036 MF/HF dual receiver as a
$100 gamble. The seller knew nothing about it since it came from an estate.
No manual of course. Some photos are at
http://www.virhistory.com/ham/clt-19.htm#k4nyw

It looks much like the R-3035, but with an IEEE-488 CPU module and a
"Baseband Converter" module instead of the Serial Interface module shown in
the R-3035 brochure. There are B/B outputs on the rear.

I gave it the 60 cycle smoke test and got tantalum smoke out of one
receiver. I hate old tantalum caps! OK - pull that p/s and leave that side
for later.

The other receiver powered up and the controls seem to function as
expected, All the module fault LEDs are off. However, the displayed
frequency was alternating with a display of "REF".

OK, there are REF connectors on the rear, but no internal/external switch
like on the 3030. The Reference/2nd LO module has what looks like a 10 Mhz
TCXO inside so I am puzzled as to why it would require an external
reference - So I hooked up a 10 Mhz signal generator to the REF connector
and the "REF" display quit blinking but the fault LEDs lit up on the
synthesizer modules. Changing the REF input to 1 MHz killed the fault LEDs
as well as the blinking "REF".

So here I am - I have no audio other than some little birdies plus a big
birdie at 0.000 frequency. Where do I go from here? - A manual would be
great. I found the 3035 brochure on Terry's site, but beyond that I am
stuck trying to apply the similarities to the 3030. Any advice/pointers
would be greatly appreciated. Are there any R-3035 owners out there?
Cheers,
Nick England K4NYW
www.navy-radio.com.