14 Dec
2011
14 Dec
'11
2:31 p.m.
But, at the moment, all that we care about is whether
we can cable from an
"RCA jack" and whether it can tune in the almost-NTSC USA "channel 3"
put
out by the RF modulator in a Coco.
We don't actually know what version of the CoCo 2 the OP has/ We're
assuming it's the US version. There was a version sold over here (UK) with
PAL encoded video and a UHF modulator on channel 36 (I forget the
carrier frequency). There may well be other national versions though (it
wouldn't suprise me at all if a PAL versio nwitha Aa VHF modualtor was made).
The CoCo 3 was never sold over here, but according to the service manual
there was an Australian version with PAL encoded video (but a VHF
modulator). This machine hs a composite output of coruse.
AFAIK from reading hte manuals, the US CoCOs have a VHF modulator
switchable (esternal swithc on the rear of the machine) to channel 3 or
4.. The outptu is an RCA phone socket.
(I am assuming that info is correct. Although I am
hardware incompetent,
I never even connected to the RF output of my Cocos, nor the 5 pin DIN
of my TRS80s.)
If you made no conenction to the RF output socket of a CoCo or the 5 pin
DIN vidoe ouptu (composite video and +5V) of a model 1, how ever did you
vieww the output of these machines?
-tony