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Xbox360 Forums => Xbox360 Hardware Forums => Xbox360 Audio/Video Technical => Topic started by: Juvenal1228 on January 25, 2009, 05:04:00 AM

Title: Vga Help
Post by: Juvenal1228 on January 25, 2009, 05:04:00 AM

hey i need some help with running my xbox and pc on the same monitor with only one input, VGA

i don't have a KVM and really don't want to buy one as im very cheap

i do have advanced soldering skills and good soldering equipment

i have ALOT of VGA cables and recepticles

i have some various switches n things

i was thinking that it would be possible to make a vga "switch" with only a few wires needing to be disconnected as alot of pins on VGA are N.C.

here is a VGA pinout

1 Red
2 Green
3 Blue
4 No Connect
5 Ground
6 Ground
7 Ground
8 Ground
9 No Connect
10 Ground
11 No Connect
12 DDC DAT
13 Horizontal Synchronization
14 Vertical Synchronization  
15 DDC Clock

as far as i know the following could be left connected at all times or not connected at all

4 No Connect
5 Ground
6 Ground
7 Ground
8 Ground
9 No Connect
10 Ground
11 No Connect

and the following switched

1 Red
2 Green
3 Blue
12 DDC DAT
13 Horizontal Synchronization
14 Vertical Synchronization  
15 DDC Clock

which is still 7 switches

but what im wondering is if it would be possible to connect evrything and switch between the ground?
thats only one switch

or possibly get a few relays and use those to switch all wires?

i would like to make this as simple as possible and not spend alot of money so any ideas would help me out

Title: Vga Help
Post by: Juvenal1228 on January 25, 2009, 05:26:00 PM

ok cool ill rig up a few of these http://www.maxim-ic.....cfm/qv_pk/4015

Title: Vga Help
Post by: Juvenal1228 on January 26, 2009, 06:21:00 PM

ok i just figured i would use some of those seeing as i had a few but ill get a few of the video mux things for the video lines

but would it be ok if i used the ones i have for pin 12-15 and my audio lines(standard phono and 3.5mm)

Title: Vga Help
Post by: Juvenal1228 on January 28, 2009, 09:52:00 AM

about the audio, would it be impossible to use the chips i already have or would it just be bad quality?

Title: Vga Help
Post by: Juvenal1228 on February 01, 2009, 04:18:00 PM

for one this project is costing me almost nothing because i have everything i need and two it is more of a "project" for me, i want a challenge and i need a KVM just for my xbox and PC so i decided what the hell at least ill try.