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need help reconnecting 4 cable to pin

post #1 of 6
Thread Starter 
first all thanks for any help. todays i was replacing LCD coverter for an presario cq60 by mistake when im going to remove the cables from the coverter i take out the 4 cable from the pin connector. there i way to conect it again? this a pic of it.

http://imageshack.us/photo/my-images/20/4pincable.jpg/
BiosFear
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BiosFear
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post #2 of 6
First, I'll tell you how they make those connectors at a electronics factory.

1.) You purchase the pins, and the connector seperately.
2.) Using a special (very expensive) crimp tool, to crimp the pins onto the wires.
3.) Afterwards, you snap the pins into the connector.

Now, lets figure out the best solution for you. I can't see clearly from the picture, but it seems the pins are still inside the connector? Assuming they are....

1.) Useing tools like a very small screw driver or a exacto knife, push down on the pins in the right place and give them a push. This will make them pop out of the molex connector.

http://www.youtube.com/watch?v=TcV7l1pER2M <-- Use a process similar to this (skip to about 3 minuites into the video). I know this isn't your exact connector, but the basic idea is still the same. The tabs you need to push on to remove the pins will probally be on the top or bottom of the connector (instead of inside the connector).

2.) If you damaged the pins beyond use, we will need to order new ones off digi-key (this step can get complicated). You should be able to re-use the pins. Since you probally don't want to buy a $200-something dollar crimping tool,...... we need a way to make a good eletrical connection. Hand solder the pins on. With really really tiny pins this process is miserable, but patience and a good soldering iron is all you need.

3.) Use a pair of needle nose pliers to bend back out the tabs that make the pins "stay" in the connector.

4.) Finally, snap the pins with the wires attached into the connector.

I work designing electronics, so i have done this before when i needed to fix something in a hurry. If you can providfe a more clear picture, i can probally provide more clear directions.
Edited by crimsontears809739 - 2/17/12 at 10:01am
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post #3 of 6
Thread Starter 
thanks for the fast answer. but the thing its that the pins on the connector have like a some solid glue.
BiosFear
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post #4 of 6
Thread Starter 
where i can buy those pins and the connector?
BiosFear
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post #5 of 6
Sorry, back now.

http://www.digikey.com/ <-- If Digi-key doesn't have them, they don't exist.

Here is the part that gets miserable......finding a replacement on digi-key.

1.) Look at the connector closely under a bright light. Sometimes you can find a part number. If you type this into digi-key, it might bring up a match.

2.) If this doesn't work, grab a pair of precision calipers or a micrometer. If you don't have those, get a precise ruler. We need to take some precise measurements.

On Digi-key.com go to "Connectors", then "Rectangular - Housings". A new screen will pop-up. Select mounting type "free hanging (in-line)" and select rows "1". Click "apply filters". This narrows it down to about 3,468 connectors. That is as far as i can help you without more info,...but don't fear.

Next, enter the number of position (number of pins). Click "apply filters".

Next, measure the "pitch" (the space from the center of one pin to the center of the next pin) as precisely as you can. Try to find a matching pitch on digi-key. Click "apply filters". (A pair of calipers is the best tool for this, but I've done it with a ruler before. Just make sure to be precise)

This should narrow it down to about 5 to 100 (hopefully) connectors. (connector type "female socket" might help to narrow it down more) At which point you should be able to manually browse through the connectors to find the one you want. The pictures are really helpful at this point, but be careful the pictures are not always up to date.

Once you get to the connector you want, click on the "datasheet". The datasheet will have the physical dimensions. Make sure they are close enough to be compatible. Be careful if the part needs a locking mechanism. Also, at the bottom of the page for a specific item you will see a list called "Associated Products" at the bottom of the page. This will have the correct pins that you need to order. Order ATLEAST twice as many pins as you actually need. ( for $0.001 each, i typically order 100 pins. thumb.gif ) They are tiny, and your probably mess a few up trying to figure out how to attach them.

Let me know the connector you decide upon or if you need more help! Good luck!

It will probably end up being a molex, TE, or JST connector. Digi-key has lots of pictures, so that should help. Most computer connectors end up being from molex.

Also, often times pins will come in different varieties. Like gold plated, or aluminum, or copper, aluminum that is already tinned, ect. As long as it's a compatible pin, it doesn't really matter for 99% of applications. Since your gonna solder it, look for a metal that is easy to solder. Anything that is "tinned" would be in your favor,..aluminum is a pain in the butt to solder. thumb.gif

I've done this process before many times. It just takes some patience.
Edited by crimsontears809739 - 2/20/12 at 10:43am
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post #6 of 6
Hello? Just curious how everything is going for you? Or if you gave up?
Deus Ex Machina
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Deus Ex Machina
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