Power laptop ma7 will not power up mains lead ok

If you are talking about a desktop / tower, you have a lead that goes from your wall socket outlet to the rear of the computer the end will be shaped like a kettle lead, in the trade we call them "kettle leads" Google image search and you will find it.
Now if you are talking about a laptop.
You have a lead that goes from your wall socket outlet to a mains charger and that's where the mains lead stops DO NOT try and plug that directly into the laptop.
Now with laptop mains leads you have three different types;
1) IEE
2) Cloverleaf ?? think of leaf with three petals
3) Figure of eight ??
If you Google image "computer mains leads"you will see the three different types including the IEE
To energise your laptop with or without a battery and after your mains lead you will need a "computer charger" or a "laptop charger"
On the underside of the laptop there will be a "rating label" telling you of the various voltages.
Or an easier way is to Google your laptop make & model
To get onto the internet you need either a Wi-Fi connection or a wired connection which is an RJ 45 plug Google the image RJ 45 and you will have your answer.
Good luck

Long list of gateway devices http://www.excelcomputerinc.com/html/xlsearchbrandresults.asp?brand=gateway http://www.freeproductmanual.com/gateway-laptop-model-ma7/ Gateway MA7 Laptop for Parts or Repair http://www.youtube.com/watch?v=L3hjxjDlqoc http://freelaptopmanuals.com/gateway_laptop_manuals.html

A good shop search in Google will find just about anything!
http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=Gateway+MA7#hl=en&sugexp=ldymls&xhr=t&q=Gateway+MA7+charger&cp=13&qe=R2F0ZXdheSBNQTcgYw&qesig=jE2Sl3iwm_qLoVoY8vB7Vg&pkc=AFgZ2tl6c_PoVCQ1WmfP_yvIPIZQgDaeWqB0I7jUQ3dfQC8GhFi4pfGqyciKpNiyrSrc5GjhnAv1FssjVI5Vhf-mg-eDIXb5Jg&um=1&ie=UTF-8&tbo=u&tbs=shop:1&source=og&sa=N&tab=wf&biw=1366&bih=653&bav=on.1,or.&fp=2ec3dc04db9d7db1

Need schematic for a Gatewsay MA7 laptop. I need to replace the power/charging circuit

You might need to re-apply some thermal grease onto the CPU's & chipset's surface beneath the heat sink. You might also need to clean the heat sink's vents.

If you are not getting any thing when just the charger is plugged in and either no battery or the battery is dead, but the system will run on a fully charged battery. There may be a problem with the motherboard that a DC jack replacement will not help.. some of the traces sandwiched in the mid-plain on the mother board might have corroded away and need to be bypassed .. check my blog for pictures on how this can be done. http://cegeekbook.blogspot.com/2010/07/gateway-ma7-mx6930-no-power-will-not.html

hi there
i read your report. OK 1. check plug in connection on the computer to c if its lose. If it's not lose simply try a new power cord. thank you for writing to fix ya.

Best Regards Richard

Take out the hard drive, take out the dvd drive. If you still don't get any video, try another stick of RAM and if that still doesn't work, then the motherboard is definitely bad at that point.

• the battery may need full charging, charge it for 4-5 hours, and it the problem persist it needs replacement.
• for it works in power cord.
  

Gateway MA7s have dodgy DC sockets. Poor solder joint on +ve pin = increased resistance = lots of heat = burnt PCB around +ve pin usually shorting the +ve pin straight to ground. If you're lucky you might still be at the poor solder joint stage and the DC socket might simply need replacing and/or re-soldering. If not, it could be a burnt PCB and it's a pain to bypass the burnt areas due to how the power gets distributed around the PCB.