vga plug/cable replacement ?

[fenix]

A friend has a 17" Sony trinitron crt monitor with a bad plug, (many missing pins-broken off). How involved is it
to replace the whole wire (of course using all the "opening a CRT monitor" precautions and discharging etc). Is there soldering involved ? I know these monitors are only worth
about $20-$25 these days, but he would like to get it repaired if it can be done without too much time/hassle/$ involved. IS it possible to put a new end on it ?

chuck it ?

 

[wahnula]

fenix

Does this monitor have a cable hard-wired onto it or a jack (socket) instead? If it has "a tail" it is possible to replace only the plug, but that requires dextrous multi-pin soldering, while splicing the cable with another one (with VGA jack attached) is much easier. If you are handy with a soldering iron simply swap the plug.

If not, get another VGA cable with attached plug, ID the wires, and splice the cable with butt splices. Covering it all with shrink wrap (placed BEFORE the splicing) makes for a neater look.

Tony

Users helping Users...

 

[goombawaho]

The only problem with the above is that usually the problem is a crimped/damaged wire right where the cable enters the monitor so there's not much to work with in terms of splicing.

 

[edfair]

You can get a VGA extension cable and use the cable and male end as the spliced on new end.

Soldering the HD connectors are a pain.

It may be pluggable on the CRT end but finding one would require you buying another monitor and probably more hours than your friend would want.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[fenix]

thanks Tony, I think I'll splice a new wire in so I don't have to open the case. I guess by your suggestions that the cord's wires are hard wired onto a board. (I've never seen a detachable VGA to monitor plug on a CRT).

There are 8 wires, 3 larger ones, RGB, and 5 very thin wires. Using butt connectors, it looks pretty tricky to be able to attach the metal mess insulation or the foil wrap layer either to the other mating wire.

Or do I have to ? Does the mesh insulation or the foil layer carry a ground or are they just for EMI/RMI concerns (which I wouldn't mind taking a chance on, given the disposibility of the project)

thx

I'll be off my computer until tomorrow--ahhhhgh
it's called painting

 

[edfair]

Mesh probably is at ground from the computer end but may be at both. Use a meter to check if it carries through.

You can probably fake the rest.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[fenix]

goomba,

The damage is missing pins.

thx

Hi Ed,

I happen to have an extension vga cable but would hate to cut it up for this project...think I'll just pick up one somewhere someday from someone's old monitor and see if I can splice it in. I guess the 2 cylindrical in line objects are standard on all CRT monitors, (one near the plug end and one near the monitor end, maybe capacitors ?). I've never specifically noticed. But the two CRT's that I have left each have 2 so I'm thinking that it's standard design.

 

[edfair]

Ferrite loops for noise protection. Some have them, others don't, but the move to higher res came in parallel with the increasing use of them.

Kinda keeps the video cable from becoming a source of TV interference.

Ed Fair
Give the wrong symptoms, get the wrong solutions.