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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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HELP! How do I connect a DC coaxial connector?
The AC adapter for my laptop broke, but only the very end connector that
plugs into the laptop. It is a DC coaxial connector (female), i think 5mmOD x 2.1mm ID. I assume I can purchase these little connectors at radioshack. How do I attach them to the wire? Do I have to cut the wire and solder something? Any links with instruction for a soldering newbie? thanks |
#2
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"Sabian Smith" wrote in message ... The AC adapter for my laptop broke, but only the very end connector that plugs into the laptop. It is a DC coaxial connector (female), i think 5mmOD x 2.1mm ID. I assume I can purchase these little connectors at radioshack. How do I attach them to the wire? Do I have to cut the wire and solder something? Any links with instruction for a soldering newbie? thanks Yes you have to cut the wire off, strip it carefully and solder it without melting the insulation and shorting it out. You need to make sure you get the polarity right too or you'll fry the laptop. It's not as hard as it sounds, but it might be good to get help from someone who's soldered before. |
#3
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James Sweet wrote:
"Sabian Smith" wrote in message ... The AC adapter for my laptop broke, but only the very end connector that plugs into the laptop. It is a DC coaxial connector (female), i think 5mmOD x 2.1mm ID. I assume I can purchase these little connectors at radioshack. How do I attach them to the wire? Do I have to cut the wire and solder something? Any links with instruction for a soldering newbie? thanks Yes you have to cut the wire off, strip it carefully and solder it without melting the insulation and shorting it out. You need to make sure you get the polarity right too or you'll fry the laptop. It's not as hard as it sounds, but it might be good to get help from someone who's soldered before. And when you're done, take a voltmeter and VERIFY the polarity. Go have a cup of coffee then come back with the voltmeter and VERIFY the polarity again. DO NOT SKIP THIS STEP!!! Jobs that look trivial can be the most challenging to get right. Do not GUESS. Do not trust the color of the wire. Do not assume you hooked it up the way you're sure it is supposed to be. The connector gets a lot of stress, as evidenced by your busted one. After I verify that it's all working, I shoot the connector full of hot-melt glue to keep the wire stable. mike -- Return address is VALID. Wanted, PCMCIA SCSI Card for HP m820 CDRW. FS 500MHz Tek DSOscilloscope TDS540 Make Offer http://nm7u.tripod.com/homepage/te.html Wanted, 12.1" LCD for Gateway Solo 5300. Samsung LT121SU-121 Bunch of stuff For Sale and Wanted at the link below. http://www.geocities.com/SiliconValley/Monitor/4710/ |
#4
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Since you have to ask this question, you should take it to your local TV
shop and let them do it for the few dollars that they may charge. When changing the connector, the wire will have to be cut, and the new one soldered on. It is VERY IMPORTANT that the polarity is not reversed, or that the connection does not have a short (usually caused by improper soldering). If there is a problem, the mother board can be damaged, and thus the computer repair will be very expensive. When I was working in servicing consumer equipment, from time to time, I have seen very expensive cameras, laptops, and other types of equipment come in with extensive damage. As it turned out, most of this type of damage was caused by people trying to save a few dollars by attempting to fix it themselves. In the end, they usually ended up doing more damage than what they started with. -- Jerry G. ===== "Sabian Smith" wrote in message ... The AC adapter for my laptop broke, but only the very end connector that plugs into the laptop. It is a DC coaxial connector (female), i think 5mmOD x 2.1mm ID. I assume I can purchase these little connectors at radioshack. How do I attach them to the wire? Do I have to cut the wire and solder something? Any links with instruction for a soldering newbie? thanks |
#5
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duh....
you just jam it into the hole with a lot of super glue.... then take it to the repair shop. That is the way I see a lot of this stuff coming into my shop. It will be cheaper if you just TAKE it to the shop first. electricitym |
#6
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wrote in message oups.com... duh.... you just jam it into the hole with a lot of super glue.... then take it to the repair shop. That is the way I see a lot of this stuff coming into my shop. It will be cheaper if you just TAKE it to the shop first. electricitym Not super glue. Liquid solder! -- N |
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