{ "numMessagesInTopic": 10, "nextInTime": 1468, "senderId": "EjECcsPJbiyk8PR8mGKEM3IxwZULTxAonefehHd_1Ly6NtFwQaZIJVFD6_xvKX8p4M56r3-EVTuWMA9SBifjrfhfSY2KQqygc6g", "systemMessage": false, "subject": "Re: Working home-built converter box!", "from": ""libert001" <starpicker@...>", "authorName": "libert001", "msgSnippet": "Hi, If you check the original cable,you see the DVI connectors do the same as you do,the connectors are differend coupled so they give only each single link to", "msgId": 1467, "profile": "libert001", "topicId": 1466, "spamInfo": { "reason": "12", "isSpam": false }, "replyTo": "LIST", "userId": 174735083, "messageBody": "
>Well,
\n> Hi all,
\n>
\n> Just a quick update on the "home-built" converter box project.
\n
> not really home built, as the heart of the system is a Kramer DVI5V
\n> distribution amp suggested by Wilson, the VM-2DVI, which can be
\n> found online for $200ish.
\n>
\n> Again, the whole idea is to send the dual-link signal to a 1x2
\n> distribution amplifier so that the dual-link signal is amplified,
\n> duplicated and output to 2 (dual-link) connectors. Each output
\n> connector has a wire brace attached to it with the assignments as
\n> detailed in one of my earlier posts, which I will repeat here:
\n>
\n> Pin Assignments:
\n> Input pin # Output 1 pin # Output 2 pin #
\n> 1,2 (Red 1) 1,2
\n> 9.10 (Green 1) 9.10
\n> 17,18 (Blue 1 + dig sync) 17,18
\n> 4,5 (Green 2) 9,10
\n> 12,13 (Blue 2) 17,18
\n> 20,21 (Red 2) 1,2
\n>
\n> All other pins from Input are split and go to the same positions on
\n> both Output 1 and 2, ****EXCEPT**** for the +5V pin on output 2,
\n> which is NOT**** connected. This was critical, and came from a
\n> little tidbit from Mr. Wright, who hinted that the absence of the
\n
> was the signal to the DG5 to go into the special dual-link decodingattached
\n> mode.
\n>
\n> For a list of the pinouts, see here:
\n> http://en.wikipedia.org/wiki/Digital_Visual_Interface
\n>
\n> Make sure that you are referencing it to the female connector
\n> looking at the socket.... I forgot at first and had to resolder a
\n> few connections.
\n>
\n> It took me about 2.5 hours or less to strip a DVI cable for the
\n> required wires, and to do all the soldering to some male and female
\n> DVI connectors that I got from www.pacificcable.com. I ran home and
\n> plugged it all in, not expecting very much, but once I set the EDID
\n> to 2, Powerstrip let me push the pixel clock to 250+Mhz for 26Hz
\n> refresh @ 3840x2400 easily, with only 1 dual-link connector
\n
> to the graphics card!
\n>
\n> The info panel on the monitor also showed 2 inputs as being active,
\n> so all indications are that the converter box is working as it
\n> should.
\n>
\n> I am by no sense "good" or "handy" with a soldering iron, and
\n> probably did a very bad job putting the stuff together... so it
\n> really seems like the fault tolerance of this system is pretty high
\n> as long as you don't make a wrong connection, which is easy enough
\n> to check.
\n>
\n> More details to come, and I'll get photos of the wire braces and
\n> setup over the weekend!
\n>
\n> Yeang
\n>