VGA plug wiring advice needed

[Tim Sampson]

Hi Folks

I've got myself in a right pickle trying to fix the broken cable on my
TFT monitor. It's a Mitac MT-15AX1-NBU. I need to replace the 15 pin plug
but due to an unfortunate turn of events, I don't know what pins some of
the wires should solder to.


What I'm fairly sure about:

1 Red coaxial wire (RED)
2 Green coaxial wire (GREEN)
3 Blue coaxial wire (BLUE)
4 Short purple wire (ID GND)
5 Brown wire (GND)
6 Bridged with 7 & 8 (RED GND)
7 Bridged with 6 & 8 (GREEN GND)
8 Bridged with 6 & 7 (BLUE GND)
9 (+5v)
10 (Sync return/GND)
11 (ID GND)
12 Green wire (ID1/Data)
13 (Hz Sync)
14 Yellow wire (Vert Sync)
15 Orange wire (ID3/Clock)


The mystery wires:

A grey coaxial wire (thick like the R,G,B wires)
A black wire
The purple wire is a short length which does not continue up the cable to
the monitor, so probably loops to another pin.


I guessed that the grey coaxial wire might be Horizontal Sync. When it is
connected to pin 13, I get a very red, fuzzy picture.

Can anyone figure out how I should connect my mystery wires?

TIA
Tim

 

[Ancient_Hacker]

Hi Folks

I've got myself in a right pickle trying to fix the broken cable on my
TFT monitor. It's a Mitac MT-15AX1-NBU. I need to replace the 15 pin plug
but due to an unfortunate turn of events, I don't know what pins some of
the wires should solder to.

dunno why you're getting read and fuzzy. Did you connect the ground
shields on the coax to pins 5-6-7-8-10?

If that still doesnt work, you can get vga cables pretty cheap on eBay.

 

[[email protected]]

dunno why you're getting read and fuzzy. Did you connect the ground
shields on the coax to pins 5-6-7-8-10?

If that still doesnt work, you can get vga cables pretty cheap on eBay.

No, I havent connected the grounds. I will give it a go. However, that
will still leave me with 2 wires that aren't connected.

Did I mention that the other end plugs directly into the monitor's
internal board? If only they had used a standard plug to plug lead.

Thanks
Tim

 

[Sam Goldwasser]

dunno why you're getting read and fuzzy. Did you connect the ground
shields on the coax to pins 5-6-7-8-10?

If that still doesnt work, you can get vga cables pretty cheap on eBay.

Not if it's a cable hard-wired into the monitor!

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[James Sweet]

Hi Folks

I've got myself in a right pickle trying to fix the broken cable on my
TFT monitor. It's a Mitac MT-15AX1-NBU. I need to replace the 15 pin plug
but due to an unfortunate turn of events, I don't know what pins some of
the wires should solder to.


What I'm fairly sure about:

1 Red coaxial wire (RED)
2 Green coaxial wire (GREEN)
3 Blue coaxial wire (BLUE)
4 Short purple wire (ID GND)
5 Brown wire (GND)
6 Bridged with 7 & 8 (RED GND)
7 Bridged with 6 & 8 (GREEN GND)
8 Bridged with 6 & 7 (BLUE GND)
9 (+5v)
10 (Sync return/GND)
11 (ID GND)
12 Green wire (ID1/Data)
13 (Hz Sync)
14 Yellow wire (Vert Sync)
15 Orange wire (ID3/Clock)


The mystery wires:

A grey coaxial wire (thick like the R,G,B wires)
A black wire
The purple wire is a short length which does not continue up the cable to
the monitor, so probably loops to another pin.


I guessed that the grey coaxial wire might be Horizontal Sync. When it is
connected to pin 13, I get a very red, fuzzy picture.

Can anyone figure out how I should connect my mystery wires?

TIA
Tim

Do you still have the broken plug? When I've replaced those plugs
before, I used an ohm meter to identify the wires on the plug.

 

[[email protected]]

Do you still have the broken plug? When I've replaced those plugs
before, I used an ohm meter to identify the wires on the plug.

If only I had been that wise! The plug had a load of moulded gunk
holding the wires in place. In trying to pull it away, I dislodged some
of the wires so I don't know where they go.

Thanks
Tim