Laptop Won't Power Up.. Suggestions Please

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Soldato
Joined
23 Nov 2002
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Near Bristol
Hi Guys,

I've been given a faulty laptop to take a look at. Basically it won't power up, you press the power button, the power/adapter button flashes on and then off quickly but there is no boot, fan spinning etc. My first thought was the AC Adapter and through some tests using a multimeter seemed to confirm that it wasn't putting out any power. So I purchased a replacement with the same output, wattage etc. The only difference that has made is now with one of the two batteries I have, the battery charge light comes on.

I've opened her up as the warranty seal was broken already, I don't see anything out of the ordinary. I removed the hard drive and messed around with the ram modules, both of which didn't help but then I didn't really expect them to. I guess it is possible that the AC Adapter blew and took out what ever fuses are in the power supply.

It is made by a competitor, so I can't mention the make, but think white dwarf explosion and you are half there. Model: M67SRU, Product Code: M670SRU. It is out of warranty, so if anyone has any suggestions before I sell it for part/spares that would be a great help.

Mark
 
If you've eliminated the power supply then it can only really be a fault with the mother board. Faulty ram or cpu doesnt usually cause a laptop to turn straight off.
 
beermonster said:
If you've eliminated the power supply then it can only really be a fault with the mother board. Faulty ram or cpu doesnt usually cause a laptop to turn straight off.
Click to expand...

Yeah thats true. I tried the old remove battery, press and hold power button trick and that didn't do anything. Either the PSU inside is gone or like you say the motherboard.

Anyone else got any suggestions or is it one for a parts and spares sale?
 
Laptops don't have a psu inside as such, thats what the black brick is for, but something will have blown on the motherboard, a repair shop with fault finding skills should be able to trace the dead componennt but it could cost £50+ to get it sorted.
 
beermonster said:
Laptops don't have a psu inside as such, thats what the black brick is for, but something will have blown on the motherboard, a repair shop with fault finding skills should be able to trace the dead componennt but it could cost £50+ to get it sorted.
Click to expand...

Are you sure? They must have something to regulate and convert the voltage. This laptop uses 19.4v and SATA hard drives use 12v, 5v and 3.3v lines, unless I'm missing something.
 
Ah I see, pretty different from a standard desktop motherboard then. I guess I'll stick it on the bay.

Thanks for the replies.
 
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