[Coco] Coco MC-10 connection problem

J.P. Samson coco+list at jeanpaulsamson.com
Thu Dec 22 19:17:35 EST 2011

On Dec. 22, 2011, at 4:28 PM, john T Chasteen wrote:

> I have the impression that I need the "Channel 3/4 Switch" to connect
> the MC-10 to the New Flat screen TV.  Will the MC-10 work when
> connected directly? I have several inputs to the TV... TV, VGA,
> SVIDEO, HDMI, AV, COMPONENT The MC-10 Manual instructs to use the use
> the Switch... The MC-10 can be set to connect to channel 3 or 4 .

Doesn't the MC-10 have a channel selector switch on the bottom of the  
computer?  Assuming your new TV has an analog tuner in it, I figure  
you should be able to connect to the coax input on the TV directly  
(using the aforementioned adapter).  Then, simply set the channel on  
the TV to 3 or 4 to match the switch setting on the underside of the  
MC-10.  As far as I know, there aren't any impedance-matching issues  
(everything is at 75 ohms, I think).  The big problem is how much  
interference will there be in the picture?

Any modern TV is not going to have a twin-lead 300 ohm antenna input,  
so why bother trying to convert the MC-10's 75 ohm RF output using the  
switchbox, only to have to reconvert back to a 75 ohm coax cable to  
screw into the coax jack on the back of the TV?

Perhaps this is more complicated that I think.  (Could there be a  
balanced versus unbalanced issue?)  Gene knows way, way more about  
this stuff.

-- JP

> On Thu, 22 Dec 2011 14:50:09 -0700 "J.P. Samson"
> <coco+list at jeanpaulsamson.com> writes:
>> Perhaps something like this F-jack adapter connected to an RCA cable
>> would be one way to bypass that "Channel 3/4" switchbox entirely:
>> http://www.radioshack.com/product/index.jsp?productId=2103471

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