Repairing Laptop Adapter-Short Circuit

This week my wife inform that her laptop battery was not charging.. yeah... i know that her adapter got problem... Then, she inform that her adapter produce beep...beep... sound... So i inform her to get new 1 bcoz nobody would repair that thing!! And in market the new price juz  only around RM180 for Compaq... 

This weekend she come back from her working district and she pass the adapter to me... arghhhh!!! expect me to repair that thing for her.. So, she could save RM180 for her!!! Ok...

So, I try to solve the problem even i never "operate" that thing and nobody would repair also.. Normally, laptop adapter would never have any screw to dismantle the item... So, I use screw driver to break the chasing... Luckily, the casing was not damage so bad.. Later, I able to use back if repairing process success...

After fully dismantle the chasing, found that 2 wires were disclose properly which indirectly would cause short circuit.. Maybe, the manufacturer built a safety where once found any short circuit, the circuit would cutoff and beep...beep... sound would automatically produce from the adapter...

Disclose wire at the adapter output

We able to close the expose wire by using a black tape.. but i choose a proper way to repair that item.. So, I take out back my soldering equipment which previously used while I'm active with radio control car for service and assemble electronic parts...

My soldering tools... juz a cheap one..

Also a cheap iron...

Firstly, dismantle all of the soldered wire... This adapter have 3wires which need to dismantle.. Before that, we have to cut out some portion of plastic which cover the wafer board... Use a knife cutter, cut properly the plastic.. But not too big... Only juz enough to put the soldering tools.. And bend the plastic upward... Later, we able to cover it back...

Plastic part which covering the solder...

Cut a small portion to move in the soldering tool... Bend the plastic upward... Dismantle that 3wires by using soldering tools...

Don't know the name.. But it used to cover the wire.. Can be found at electrical and electronic shop..

Put the cover properly... Use a suitable size of diameter.. Too small would difficult to install... Too big would not able to hold the wire nicely...

 And burn it by using lighter...

After burn... Melt and hold tightly the wire..

After completely cover the wires, solder it back to the position.. Make sure that U solder at the right position... Do not change or modify the location..

After complete soldering...

Finally, cover back the plastic cover which had been cut before... Then, seal the adapter back by using tape.. Make sure it seals tightly and not easy to open back.. The tape that I use available at any Tamiya Store...

So, I had saved RM180 and can use the money for others...

Good luck!!!