SVGA Wiring

Vanilla_Ice · 4 Jul 2006 at 14:03

Hi,

Not sure if this is the correct forum or not, so Dons please move if required.

I want to connect my laptop to a SVGA wall socket that will send a video signal through a SVGA cable traced into the wall to a remote wall socket. From this second wall socket I wish to connect a wall mounted TFT TV.

I have some SVGA cabling with 7 wires within. I would like to know which of these 7 wires I need to connect to which pins on connectors in the wall mounted sockets. I'm guessing it is a straight through type scenario i.e. 1 to 1, 2 to 2 etc. But as there are only 7 wires, which are essential?

Cheers,

ICE

EDIT: It would help if I could count!! - there are 8 wires within the SVGA cabling I have.

Energize · 4 Jul 2006 at 15:00

At least these and their grounds. Afaik 7 pins for a vga cable is not enough 9 is miniumum.

Red
Green
Blue
H sync
V sync

hybrid · 4 Jul 2006 at 15:10

http://www.acl.co.uk/pinouts.htm

that might help

Vanilla_Ice · 4 Jul 2006 at 17:12

Thanks lads

Energize said:
At least these and their grounds. Afaik 7 pins for a vga cable is not enough 9 is miniumum.

Have enditted origonal post there are 8 wires within the SVGA cabling I have.

Can anyone else please confirm that 9 are required?

Cheers,

ICE

Energize · 4 Jul 2006 at 17:58

Actually since its only a tv you may be able to get away with not having h sync. Still very strange that there is only 8 pins in the cable when standard vga uses 15pins.

Vanilla_Ice · 7 Jul 2006 at 17:15

OK, Im getting abit confused.

Is someone please able to explain which of these wires should go to which pin out? :confused:

Cheers,

ICE

Energize · 7 Jul 2006 at 17:23

Depends, are you connecting it to a 9 pin or a 15pin socket?

Vanilla_Ice · 8 Jul 2006 at 12:36

15 pin D-SUB

Cheers,

ICE

Vanilla_Ice · 9 Jul 2006 at 14:22

BUMP

ICE

fornowagain · 9 Jul 2006 at 18:50

The three thicker one's (123) probably have their own screening, as they're RGB signal cores, if they have then they're (678). Use 2 for the H/V sync (13 14). Colours don't matter as long as its the same both ends.

1 Red (Analog)
2 Green (Analog)
3 Blue (Analog)

4 Reserved
5 Ground

6 Red Return
7 Green Return
8 Blue Return

9 No Connect
10 Ground
11 (ID0) GND (Color)
12 (ID1) NC (Color)

13 Horzontal Sync
14 Vertical Sync

15 No Connect

http://en.wikipedia.org/wiki/VGA_connector

Vanilla_Ice · 11 Jul 2006 at 19:51

fornowagain said:
The three thicker one's (123) probably have their own screening, as they're RGB signal cores, if they have then they're (678).

Thanks fornowagain,

They do have their own screens, so i litteraly connect the screening to the appropriate pin, right?

Cheers,

ICE

fornowagain · 11 Jul 2006 at 21:33

Vanilla_Ice said:
Thanks fornowagain,

They do have their own screens, so i litteraly connect the screening to the appropriate pin, right?

Cheers,

ICE

Yep

Red to 1, red screen to 6 and so on.

Vanilla_Ice · 24 Jul 2006 at 13:01

UPDATE:

I have soldered the wires as instructed, but it hasn't worked

No picture is being sent to the monitor as the "no signal" logo dances around the screen. However, I did notice that with pin 10 connected the logo would dissapear, but still no picture was being displayed.

Any more advice? Where might I be going wrong? Are the RGB screens definately needed?

Cheers,

ICE

Energize · 24 Jul 2006 at 18:06

I think you need pin 10 or 5 connected for a sync ground, you could try having pin 10 connected in place of either v or h-sync, iirc computer monitors don't use vsync by default so it may not be needed. With only 8 pins though I wouldn't be so sure its a vga cable and not something like a serial one.

fornowagain · 25 Jul 2006 at 02:38

Try this and yes you need the screens for the RGB cores.

1 RED Red color signal, red coax core
2 GREEN Green color signal, green coax core
3 BLUE Blue color signal, blue coax core
5 N.C. white
6 GND-RED Ground Red signal gnd, red coax shield
7 GND-GREEN Ground Green signal, gnd grey coax shield
8 GND-BLUE Ground Blue signal, gnd blue coax shield
10 GND-SYNC Ground Sync signal, black
12 ID0 Monitor identification bit 0, red
13 H-SYNC Horizontal Synchronization, orange
14 V-SYNC Vertical Synchronization, yellow

Take the main screen to the d-sub metal outer.

Energize · 25 Jul 2006 at 11:11

Hes only got 8 pins though.

In all honesty I think you need a new cable.

fornowagain · 25 Jul 2006 at 11:20

8 pins?

Thought it was a 15 pin d-sub. The cable has 3 coax and 5 conductors. That's 11.

Energize · 25 Jul 2006 at 11:22

3+5=11?

fornowagain · 25 Jul 2006 at 11:24

Energize said:
3+5=11?

6+5=11

Coaxial, as in both in the same axis.

Vanilla_Ice · 25 Jul 2006 at 12:20

fornowagain said:
Try this and yes you need the screens for the RGB cores.

1 RED Red color signal, red coax core
2 GREEN Green color signal, green coax core
3 BLUE Blue color signal, blue coax core
5 N.C. white
6 GND-RED Ground Red signal gnd, red coax shield
7 GND-GREEN Ground Green signal, gnd grey coax shield
8 GND-BLUE Ground Blue signal, gnd blue coax shield
10 GND-SYNC Ground Sync signal, black
12 ID0 Monitor identification bit 0, red
13 H-SYNC Horizontal Synchronization, orange
14 V-SYNC Vertical Synchronization, yellow

Take the main screen to the d-sub metal outer.

It worked! :cool:

However, there is a but...

the picture has a blue tint to it. I'm guessing there is a short somewhere in the soldering. Any ideas where to look? I have visually inspected them all and I can't see anything out of order.

Thanks for getting me this far... would really appreciate any help with getting rid of this blue tint if you have any pointers.

Cheers,

ICE