Looking for a charger for my proscan laptop PLT1090-k

Go on eBay and you should be able to get one. This site doesn't sell parts.

Your laptop charge which originally came with your laptop may have a defect. The laptop you are having problems with needs a compatible charger to power up. Not all laptop chargers work for different laptops. Shop on Amazon and reference the exact make (model number) of your laptop specific hardware (Charger) of what you are looking for. I bet it is your charger.

you should probably find it on site like ebay , amazon if you dont find it i will try for you

Proscan is classified as a bargain tablet in the low end range.so you should expect any kind od issues related to it. like that of power button.
Obviosly you have a problem with your battery, though no way to tell "from distance" if it's prperly the battery or the charger... or both You haven't commented in your post if it works with the power adapter. Chargers can be easily diagnosed by measuring output with an electronic tester. Once you have a good charger, you should test if you can charge your battery.
I understand that Proscan batteries are "lifetime", so it's not easy to replace them.
You should evaluate it it's worth to buy new charrger and replace the battery or maybe buy another device. Probably you need some technical assitance for diagnosis.
Take note that you can get a used tablet from Amazon from about 465 USD in good conditions, without the need of spending on repairs







Amazon com Customer Reviews Proscan 7 Inch Android Internet Tablet...



Proscan 7 Inch Android Internet Tablet Capacitive Touch Screen Android 4 1...

power switsh problem

The battery can't hold the charge. Defective.

Or the charger is defective and not outputting enough voltage.

This can be tested with a voltage tester. The charger should be outputting 5 volts.

A good purchase is an inexpensive voltage tester. Can be used for so many things.

check out this article - not sure if the same for your model but worth looking at in case.
http://zolygon.com/?p=1745

Sounds like the battery is dead. Does the charge light come on when you connect it to the charger? If not, the port on the tablet or the charger may be bad.

If you wish to know its programming procedure, check the sites linked here. it is difficult to type all all here by this wondow. http://electrohelponline.blogspot.com/
http://electro-medical.blogspot.com/
Both the sites have setup code list, and setup procedure to many popular brand remote controls. Check the site in 'Mosaic' view. It will make search easy.

Here's the link to all Proscan TV Manuals =>

http://oncorpus.com/down/down.htm

Here's the link to your Proscan model#42LA45H 42" lcd tv =>

http://www.oncorpus.com/down/ENG/42LA45H%20English%20UM.pdf