Faithful readers of the GSD blog may remember the near-disaster we went through here with our Gateway laptop:
- Calling H-Town Techies: Help Save our Laptop! - GSD Blog
- All Healed! – GSD Blog
Basically the plug socket jack solder-points became broken on the systemboard.
This turns to be a common problem for many laptops.
It was a $250 fix that I would rather not repeat.
Looking at the design and knowing how Alvis (and I) had been using it, I suspected the L-shaped design of the plug allowed it to swing downward and then when carelessly set on a lap, the ottoman, a table, etc. this could put pressure on the systemboard jack solder points and cause them to break. Take a look at what I mean below.
In most cases that plug wants to point directly down and makes a 90-degree connection into the laptop DC plug jack receptacle. Any pressure on the plug cord housing is transmitted directly to the plug jack as it is not fortified tightly/directly to the laptop casing body like some other systems I’ve seen (Dell).
I saw a guide once where a guy had hacked together a “strain-relief” connection with an unused modem jack plug/socket, cable, and some rubber bands. It was ugly but worked.
Unfortunately, the back of this model laptop only has the DC plug socket on one side and a VGA D-sub connection point on the other corner.
But wait….maybe I could make a low-profile “dummy cap” for it to which I can affix a clip of sorts to hook the AC cord wire into. That should keep the L-shaped AC/DC plug aligned safely so it doesn’t get jammed when resting on the desk or my lap and maybe apply pressure again that could re-break the solder joints.
I ran this thought across the D-man’s desk but he was having a hard time following.
So last weekend I did the hack and took pictures so everyone can see the MacGyver jury-rigging job that I did.
So far field-deployment has been very positive in the results!
The Hack-Job
I dropped in at RadioShack and picked up a 15-Position HD Male Solder D-Sub Connector. They actually had two models. One with the pins inserted as shown above and one without the pins inserted.
I got the pins-in-place model as I was thinking that the pins would help keep the jack aligned and attached more firmly. In hindsight I should have got the other one.
Once at home I got out the Dremel and drilled a vertical 90-degree hole in the portion of the connector just behind the "plate”. The hole was just large enough for a small plastic zip-fastener to fit through. I also ground-smooth the sharp edges created when I drilled out the hole to make sure the cord (or me) didn’t get cut by any burrs.
Once done I inspected the work.
The problem I saw was that when I drilled through it some of the pins were now very loose. I removed these with needle-nose pliers.
Then I wondered if maybe while making the cut, some metal fragments might cause a “short” between pins, thus sending a false signal to the VGA system. That probably wouldn’t be good.
So I ended up extracting them all to leave the connector “pin-less”.
I attached the connector on one end of the laptop.
I then plugged in the DC plug on one side.
I routed the cord horizontally across the back being sure to leave just a little bit of slack to keep tension off the jack itself.
Then I threaded the zip-tie through the hole and bound the cord snugly to the connector housing with it; trimming off the zip-tie excess when done.
Thoughts
It works great.
the L-shaped jack is now safely oriented to keep it from getting jammed when the laptop is on a flat surface.
I suppose I could use screws to more securely attach it to the laptop, but I decided against that. I do want it to “break-away” easily if the cord is tripped over or snagged.
I did lightly crimp the housing just a bit to allow a snugger fit on the VGA plug itself.
I probably should have mounted it securely in a vise when I did the drill-out to get a more accurate hole and placement, but it was close enough.
All said, it cost just under $5.00 to rig this preventative getup.
Not too bad and not too ugly.
It remains small enough to wrap the cord up without adding much bulk.
Small price to pay.
Cheers!
--Claus V.
0 comments:
Post a Comment