[mythtv-users] RE: DVI and RGBHV connections

[Neil]

Hi Bill, 

I'm wondering why I'm not getting any emails from mythtv-users mailing list. 
I saw your reply at gossamer site. :) 

Please see my replies below. 

>> I also read a thread in mythtv mailing about interlace bug 
>> not evident in 
>> VGA port. So, here it is, I was already happy before when I 
>> was using DVI 
>> but I'm ecstatic now with my new connections, RGBHV and that it's a 
>> homebrew. Please see 
>> http://restricted.dyndns.org/hookingpc2hdtv.ht> ml for 
>> more 
>> information....  
>> 

>Please be aware that the info you are presenting in that page is somewhat 
>wrong. The pin out is correct but there is a issue with the signal levels 
>presented to your tv. The drive levels put out by the VGA connector are 
>higher than the maximum level allowed by the RGBHV spec. To protect your tv 
>and to improve the color and saturation of your picture you need to place a 
>75 ohm resistor in series with all five signals (RGBHV). This should be done 
>as close to the VGA connector as possible. This does two things. 1 - It 
>presents the 75 ohm cable with a 75 ohm drive impedance and 2 - It reduces 
>the peak to peak voltage to be close to the spec. This may save you from 
>blowing out the input to your tv. The resistors can be very low wattage, 1/8 
>watt or smaller is fine. 

Ok. So correct me if I am wrong that the only piece I was missing is the 75 
ohm resistor for all the five signals.
Correct? 

>PS - I use RGBHV on my system with a homemade cable and its by far the best 
>picture I have ever gotten driving the tv with a computer. 

Did you see my screenshots too? It's awesome. 

Thanks for your inputs. It helps a lot. 

Ronneil