I have an old motherboard with some problem with the VGA port. The connector was loose and got off from the motherboard. How is this supposed to be connected or is this broken?
Obviously broken. You need to desolder what's left of the connector from the board and solder a new one in it's place. You need to look for a 15 pin D-SUB connector to replace the broken one.
Can you show the other side of the jack? I'm curious how the strain relief let go.
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wrote:Obviously broken. You need to desolder what's left of the connector from the board and solder a new one in it's place. You need to look for a 15 pin D-SUB connector to replace the broken one.
Some practical tips in addition to this:
Preheating the PCB laminate around the connector to 130-150 deg C with a hot air gun will make desoldering the connector hell of a lot easier. Just be careful and don't go too hot, you don't want to overheat electrolytic caps, or melt plastic details and other solders in the vicinity of the connector.
Also, there are a few variants of DE-15 connectors for different hole patterns in the PCB. Not sure what they're called, but that looks like the variant with tighter pin spacing on the soldered side, it usually is when the ports are stacked that way. Another broken mobo would be a good source of the right kind of connector, and it would also give you the chance to practice desoldering on the connectors you don't need this time.
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Been there. Done that one.
It's not a hard fix. Just sucks to have to mess with it.
wrote:Can you show the other side of the jack? I'm curious how the strain relief let go.
See the barbs sticking up on the motherboard to either side of the pins.
Those attach to the threads that hold the jack screws.
It's a weak point and it twists a bit right there when you tighten or loosen the screws.
They can snap when removing the jack screws that are too tight or if the monitor cable suffers a good yank.
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Mann-Made Global Warming. - We should be more concerned about the Intellectual Climate.
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
https://www.youtube.com/watch?v=ULWDrF-JEUk
With such a Tool its pretty easy to add a new jack.
The cheap way for home:
https://www.youtube.com/watch?v=qJ8kTnOok7s
Maybe you just can glue it back in place ? Instead of soldering a new one?
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https://www.retroianer.de - german retro computer board
