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Chat Area => General Discussion Area => Topic started by: Darth Loo-knee on 11 October 2009, 17:21:55

Title: For all you computer people
Post by: Darth Loo-knee on 11 October 2009, 17:21:55
My lappy is not turning on at all, no lights saying the mains are plugged in etc, the screen just stays black.....
I have checked the mains power lead and there is 20.2volts getting to the end of the little plug that goes into the laptop.

Any one with any ideas other than smashing it in will be welcome as I am toying with that option as I type ;D ;D ;D
Title: Re: For all you computer people
Post by: Mr Skrunts on 11 October 2009, 17:24:29
I believe jamie has a tool to fix it, Think it's been nicknamed Sammy.   ::) ;D ;D ;D
Title: Re: For all you computer people
Post by: TheBoy on 11 October 2009, 17:56:50
Will it start if you remove battery?
Title: Re: For all you computer people
Post by: KillerWatt on 11 October 2009, 18:24:16
As above, remove battery and try that.

If that doesn't work, then the next thing is a CMOS reset.
Post back the make & model, and I'll dig out the procedure for that.

PS
I'd also test the power supply under load, just because it displays it's correct voltage to a meter (which is no load at all), it doesn't mean you'll have the same voltage when you apply the load (the laptop).

If a CMOS reset/battery removal doesn't cure it, and the PSU checks out OK, and the power light (the one that indicates the charger is plugged in) still refuses to light.....I'd be looking at where the power socket is soldered to the motherboard (quite a common fault).
Title: Re: For all you computer people
Post by: Darth Loo-knee on 11 October 2009, 18:29:13
Tried taking the battery out fella's then plugging the lappy in.. but nothing at all happens :(

So will the soldering be easy I am ok at soldering normal cars wires etc but not done anything tiny like I expect inside this computer ::)
Title: Re: For all you computer people
Post by: KillerWatt on 11 October 2009, 18:32:38
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So will the soldering be easy I am ok at soldering normal cars wires etc but not done anything tiny like I expect inside this computer ::)
The ease of soldering will depend on your skills, and the iron you use for the job.

A £3.99 shovel rated at 50W is NOT the tool for the job (especially with multi-layer PCB's).
 
Title: Re: For all you computer people
Post by: TheBoy on 11 October 2009, 18:32:49
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Tried taking the battery out fella's then plugging the lappy in.. but nothing at all happens :(

So will the soldering be easy I am ok at soldering normal cars wires etc but not done anything tiny like I expect inside this computer ::)
Soldering may be something best left to somebody a little more experienced.  Sure there are a few people near you who can help though :y
Title: Re: For all you computer people
Post by: TheBoy on 11 October 2009, 18:33:34
That said, the power socket is normally pretty easy to resolder, assuming the tracks aren't knackered
Title: Re: For all you computer people
Post by: Darth Loo-knee on 11 October 2009, 18:34:09
So will I see a broken wire or something as I am going to try with My Shovel ;D ;D
Title: Re: For all you computer people
Post by: TheBoy on 11 October 2009, 18:35:03
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So will I see a broken wire or something as I am going to try with My Shovel ;D ;D
Dry joint or cracked board near the power socket
Title: Re: For all you computer people
Post by: Darth Loo-knee on 11 October 2009, 18:36:21
here it goes then
stay online for Gowds Sake  ;D
Title: Re: For all you computer people
Post by: JamesV6CDX on 11 October 2009, 18:38:25
My Dell recently did this.

When I took it apart, the CMOS battery seemed to be seeping a little fluid over the motherboard.

Cleaned it up with contact cleaner, left it to dry, put it together, and worked fine, no faults since  :y
Title: Re: For all you computer people
Post by: Darth Loo-knee on 11 October 2009, 19:30:48
There are a million screws holding this lappy together :D
Title: Re: For all you computer people
Post by: CaptainZok on 11 October 2009, 19:39:27
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There are a million screws holding this lappy together :D
See how many you've got left over when it's back together. ;D
Title: Re: For all you computer people
Post by: Vamps on 11 October 2009, 20:56:04
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Quote
There are a million screws holding this lappy together :D
See how many you've got left over when it's back together. ;D

 :D :D :D :D
Title: Re: For all you computer people
Post by: Mr Skrunts on 11 October 2009, 21:10:57
If there are less than 5 screws left over then the jobs a good un.   :y
Title: Re: For all you computer people
Post by: robbo299 on 11 October 2009, 21:12:34
Had the same prob with my daughters Compaq lap top. All she had was a blinking power light on her keyboard and nothing on the screen. One repairer said it was probally the power jack connection and took it for an estimate. That took 5 days and the outcome they said was a new motherboard was needed at a cost of £130+ :(  Wasn`t entirely happy with the diagnosis so took it to another lap top repairer who has a small shop near me and he diagnosed almost imediately the problem. Took him a week to find and replaced faulty component on motherboard and charged me £70. Component was just a few pence to replace he explained but cost of repair was mostly faultfinding. I thought about "having a go" myself before i took it for repair and downloaded a repair and faultfinding PDF file for her lappy but when i saw how complex it was decided against it. Like has been said above.... hope Daz doesn`t have any screws left over! :D ;D ;D
Title: Re: For all you computer people
Post by: JamesV6CDX on 11 October 2009, 21:21:23
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Took him a week to find and replaced faulty component on motherboard

That's the difference - the larger dealers don't always have the time to go into so much depth.

When I worked in a computer shop, we'd not go into that much detail.

Considering the extra labour/time, it was more cost effective to just swap the motherboards out...
Title: Re: For all you computer people
Post by: dad1uk on 11 October 2009, 21:29:20
Is no news good news?
Has Daz Destruction struck again?
Will he own up to messing it up?
Is there a faulty laptop on Ebay in the Stoke area?
If it's Del, is it the one with a pink top? ;D
Title: Re: For all you computer people
Post by: Darth Loo-knee on 11 October 2009, 21:37:19
It (the laptop) is now sitting somewhere on the lawn in the garden after throughikng out of the patio door >:(
Did not have any screws left over though ;D
Title: Re: For all you computer people
Post by: CaptainZok on 11 October 2009, 21:41:49
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It (the laptop) is now sitting somewhere on the lawn in the garden after throughikng out of the patio door >:(
Did not have any screws left over though ;D
Give it a drink of hot chocolate, that's how you fixed the last one. ;D ;D
Title: Re: For all you computer people
Post by: Darth Loo-knee on 11 October 2009, 21:50:48
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Quote
It (the laptop) is now sitting somewhere on the lawn in the garden after throughikng out of the patio door >:(
Did not have any screws left over though ;D
Give it a drink of hot chocolate, that's how you fixed the last one. ;D ;D


How very dare you..... I tripped carrying six hot chocolates  :o scolded myself in the fall too :-[
Title: Re: For all you computer people
Post by: PhilRich on 11 October 2009, 21:57:38
Leave it out all night mate, some passing hedgehog will probably piss on it & it will be right as rain when you plug it in again!  ;) :y
Title: Re: For all you computer people
Post by: ali on 11 October 2009, 22:50:20
Has your laptop been spending too much time with mine :-? Ive spent the last few hours with the same problem :( Have managed to turn it on but its getting very hot   :-/ :-/ :-/ :-/
Title: Re: For all you computer people
Post by: Ken T on 11 October 2009, 23:12:11
If there are no lights, then as Killer Watt said it prob means power isn't getting into the works. So DC socket is the favourite, caused by people pushing and pulling their plug. :o

(http://i159.photobucket.com/albums/t155/lapbits/PICT1664.jpg)

 Trouble is when the soldered joint goes bad it still passes 3A of juice, which starts to heat up the PCB around the socket. This can burn the PCB, and ruin tracks, esp if its multi layer.  :-X :-X :-X

If all else fails, it can be worth a few bob for spares. Stick it on fleabay.

Ken
Title: Re: For all you computer people
Post by: eddie on 12 October 2009, 01:11:27
Is it a Dell by any chance ??  (No not Dellboy!)

I posted a fix for this in here somewhere... if its a Dell see if the  (thin) pin in the middle of the plug (on the laptop end of the adapter cable) is still there ??

eddie
Title: Re: For all you computer people
Post by: tunnie on 12 October 2009, 09:01:40
if its still in once peice (sort of) Daz i can take a look.

If your still popping down London way?