HI, I BOUGHT A NEW MOTHERBOARD AND REPLACED IT IN MY LAPTOP. THE LAPTOP WILL NOW TURN ON, OR AT LEAST THE LIGHT WILL, BUT THE SCREEN DOESN'T LIGHT, THE KEYBOARD WON'T TYPE ETC.. AND IT SEEMS LIKE IT STILL HAS NO POWER. IS THERE ANYWAY TO TELL IF I HAVE NOT HOOKED SOMETHING UP RIGHT? IS THERE A DIAGRAM OR ? THAT I CAN GO BY TO SEE WHAT I HAVE MISSED? THANKS SO MUCH FOR ANY AND ALL HELP! LORI
Still haven't figured it out. I am resigned to the fact that I don't know enough on the laptop so even with your great advice and help, I won't be able to fix it without a visual. I'm still trying though. Thanks so much for the help.
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DC jack, where you plug the power adapter cable, might be loose or
defective, & needs to be either re-soldered or replaced. In order to do this, the laptop needs to be disassembled
& the motherboard taken out. Also, the motherboard needs to be checked for defective/burned out components in the
area near the DC jack. Any defective/burned out components found should
be replaced, or you might need to replace the laptop's motherboard
Alternatively, the charger wire just next to the charger head might be damaged. Some wire has frayed apart and is making intermittent
contact with itself. This could be fixed by either replacing the charger with a new one, or replacing the charger head & the few centimeters of the wire connecting it to the charger & re-soldering a new charger head instead.
I have solved that problems by replacing the plastic Lamp Cover. NEC says they wear out over the years due to the heat. If you have a spare VT700 about, swap covers and see if that works. or order one from NEC, thay cost 5 dollars.
Hi, If after the replacing the AC adapter the problem still persists , the power board on the motherboard has gone bad. The same can be repaired, but would require you to take the system in for repairs. if the system is under warranty then the best thing to do is get the motherboard replaced.
OK you may indeed have the driver installed, but do you have your sound manager installed? Often you need a sound manager too. Again you need to install the whole package, and NOT just the driver itself. Usually just the driver gets installed if it is detected and windows just installs the driver only, and not the management software. You will need to obtain this installer to do this.
website for drivers above.
hi there, i recommend replacing the entire board. once you have a short like this, the micro board itself will become useless. the thin micro circuitry has become separated within the layers, preventing a closed current transfer. its best to order a new canvas so to speak.
If you have replaced the power pack (assuming the power pack is BRAND NEW and has a green light to indicate that there is power going into the adapter) i've seen cases where the green light is on the power pack but no juice is flowing to the laptop - so if its2nd hand i'd look at a new one.
Failing that remove battery and try - battery could be casuing the motherboard not to accept power due to faulty battery
Failing you have tried all the above then it looks like your motherboard needs replacing