D-ILA Serial connector to S-Video for Dilard - AVS Forum | Home Theater Discussions And Reviews
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Old 04-17-2001, 12:08 AM - Thread Starter
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When I was wiring my home theater I decided to run every type of cable I could think of to my projector before I drywalled. I ran 2 VGA, 1 Composite, 1 S-Video, & Power.

Drywall, Tape, Mud, Paint....Doh!!

Silly me I forgot to run a serial cable (for Dilard). It would be pretty much impossible to run a serial cable now (due to a very convoluted cable path).

After much debate, I decided to use one of the cables I already have there. Since the internal scaler in my D-ILA sucks, I don't really have plans to use the S-Video cable. Here is my question:

From what I understand, RS-232 can work with as few as 4 wires. Two questions: Can Dilard communicate with my HTPC with only 4 wires? And, which four wires? I know Send, Transmit, and Ground are required, but what should I connect the fourth wire to?

As unlikely as it sounds, does anybody make an S-Video to RS-232 (9 Pin) adapter? Actually S-Video and Apple Desktop Bus (ADB) are the same connector, so maybe somebody makes a Female ADB to Female RS-232.

Help!

Jeremy

------------------
D-ILA, HTPC, HDTV, Panamorph(?)

[This message has been edited by JeremyNeish (edited 04-17-2001).]

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Old 04-17-2001, 12:28 AM
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Found this in the Dilard FAQ at www.dilard.com

Q: "What type of cable do I need to run Dilard?"

A: You will need a null modem or full modem cable to run Dilard

This is a relatively simple cable that you can build yourself, if you wish. The brief cable schematic is here (thanks to Kevin Gilmore for drawing the diagram):

Computer--------Dila
2-----------------3
3-----------------2
5-----------------5


-=-=-

I'd suggest you use the grounds on the S-Video as Pin5 and use the
center conductors for Pins 2 & 3. (Tx & Rx). Get a couple of female
S-Video connectors and a couple of female DB-9 connectors and you
should be set.
I doubt you'll find a ready made cable for this.

------------------
JVC G1000 DILA
Stewart Greyhawk
Sony: SAT-B3, DTC-100,STR-DA777ES Receiver
Toshiba: SD-3109 DVD
Proscan 27" TV
B&W: DM601, CC6, DS6B, 800ASW speakers

-=-
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Old 04-17-2001, 05:08 AM
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Its a null modem cable . . . pins 2 and 3 (receive / transmit)are "crossed". A straight adaptor won't work, even if you find one. You would need to add a "null modem". It is probably easier to just cut the s-video connectors off, and change them to DB9s.

SM
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Old 04-17-2001, 05:35 AM
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You can get the parts at Radio Shack or Black Box.
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Old 04-17-2001, 07:48 AM
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Hi Jeremy,

You probably already know this from the posts above, but the RS232 communication only needs 3 wires and not 4.

1 to transmit
1 to receive
1 for ground

It doesn't get much more basic than that.

The ground goes straight through (pin5), and as Swampfox (Stew?) mentioned, pins 2 and 3 cross for the communication and connect 2-->3 and 3-->2.

Mark Hunter
Technical Director, Home Theater Products
Datacolor, Inc.
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