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  1. #1
    BIFF
    Guest

    Default !!! Calling Billy T and Terry Porritt !!!

    Hello Monitor Masters <grovel grovel>

    I have a nice modern 17" monitor from Compaq. Unfortunately the person who gave it to me did so because it has no VGA connector! It's a D-sub amputee!!

    Can you help me figure out which wires do what? They are as follows:

    The cable is shielded coax.
    It contains:

    Fine Dark Teal wire
    Fine Orange wire
    Fine Yellow wire
    Fine White wire
    Fine Brown wire
    Fine Black wire
    Thick Red wire (sheilded or two strands?)
    Thick Blue wire (sheilded or two strands?)
    Thick Grey wire (sheilded or two strands?)

    I am armed with a suitable soldering iron, 15 pin VGA plug and a multimeter. Can you help me?

    Any assistance you may be able to provide will be most gratefully received.

    -BIFF


  2. #2
    drys
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    BIFF Try this link
    http://www.acl.co.uk/pinouts.htm
    Trev

  3. #3
    Terry Porritt
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    Aw Gee. Billy T is the expert, I only dabble. I take it the plug has been cut off the end of the cable for some reason?
    The 15 pin plug can be soldered on, but it's tricky, there's not a lot of room between the pins, you need a very fine tip. Really your best bet is a new cable altogether, they're all different, there are about 4 different styles of plug on the other end in the monitor also.

    The easy bits first:
    The red wire is probably the red signal, will go to pin1.
    The shielding will go to pin6.

    The blue wire will be the blue signal and that will go to pin3.
    The shielding will go to pin8.

    The grey wire therefore must be green signal going to pin2.
    the shield wire will go to pin7.

    The other important connections are horizontal sync on pin 13, vertical sync on pin14 and a ground wire.

    That makes a total of 9 connections minimum for the monitor to work.

    The others are for identification plug and play signals, but which are which among the remainder?????

    With the multimeter you could check to see if the black wire goes to monitor ground. If so then in the plug you could wire pins 4, 10, 11 together and connect the black wire to one of those.

    Now there are the sync connections.

    Im going to duck out and see what Billy says

  4. #4
    Terry Porritt
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    Of course the other obvious connection is the outer braiding screen should be soldered to the vga plug metal shell.
    It also helps if the plug can be held in a small vice as several pairs of hands are really needed. Also I find that those magnifying visor thingies you can get from Dick Smith can help if you have difficulty focussing at close range.

  5. #5
    Terry Porritt
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    Im going daft, see you are from Wellington! Well if all else fails go to Monitor and Terminal in Willis Street. Extremely helpful guys there, very helpful. They may be able to tell you the connections straight away, or they may have a second hand cable, or as a last resort they could probably get you a new one.

  6. #6
    Mike
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    Or perhaps they could just do the whole job themselves?

    Mike.

  7. #7
    BIFF
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    > Or perhaps they could just do the whole job
    > themselves?
    >
    > Mike.

    I've got quite a bit of scottish blood in me!

  8. #8
    BIFF
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    Hi Terry,

    thank you for your help, I believe I now have all the wiring information I need to fix the plug

    -BIFF

  9. #9
    Terry Porritt
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    Now the tricky bit begins, soldering the connections ensuring there are no solder blob shorts between the pins.
    Did you find out the colour coding for the sync and ID pins?
    Good luck.

  10. #10
    Billy T
    Guest

    Default Re: !!! Calling Billy T and Terry Porritt !!!

    Sorry Biff

    I was tied up with work and missed this thread. To be honest, I don't think I can add anything to the very sound advice that Terry has offered except to endorse Monitor & Terminal as good guys.

    Colour codes should be consistent between manufacturers but often they are not and sometimes the only way to sort them out is to look at the other end inside the monitor and see if you can trace the connections there.

    BTW, cut off plugs usually indicate that the monitor was disconnected in a hurry by persons who didn't know much about computers but knew what they wanted (if you get my drift) so you might wish to take care if you cannot establish its provenance. A reasonable clue would be if the serial number is still present. If not, it could be dodgy.

    If it all looks above board and you can't sort out the correct connections, I would heartily recommend M & T as it should not be an expensive repair.

    Cheers

    Billy 8-{)


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