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Laptop expert please help

post #1 of 12
3/1/09 at 2:19pm
Thread Starter 
Hi guys my problem is little weird ...

I power on my laptop v4000 and nothing happens no sounds no lights no hd spinning completely dead....
But ass soon as i plug in my vga external monitor it wakes up completely and turns on i can even press fn+f4 lcd/crt and my laptop screen also comes on but ass soon as i unplug the vga laptop screen goes black... ... it cant be my mptherboard because it works with external so what elses it could be?

please help is really weird..
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post #2 of 12
3/2/09 at 3:59am
Your LCD inverter is probably bad. Cheap and easy to replace.

cheers ...
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post #3 of 12
3/3/09 at 12:22pm
Thread Starter 
I just found using just only the battery works good everything works,laptop boots up all the way to windows ,but if i use just the power cord and take off battery goes dead again the only way it works on the power cord alone is plugging in the vga external monitor.. ....

Thanks...would it still be the inverter even tho the lcd creen works perfect on battery and no vga intalled?
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post #4 of 12
3/4/09 at 2:53am
1. So LCD works only on battery?

2. LCD works with battery and AC?

3. Battery goes dead with AC on?

cheers ...
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post #5 of 12
3/14/09 at 7:33pm
I am guessing that this is a "power" issue, motherboard related, not an LCD issue at all. based on the fact that you are getting no hard drive, lights, or anything...this does not sound like anything to do with the inverter.

I think that when you plug in an external monitor and it boots up, it is throwing folks off track.

That it runs fine on battery power alone, leads me to suspect that there is an issue somewhere on the mainboard, likely to do with the AC conversion.
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post #6 of 12
3/14/09 at 7:36pm
Thread Starter 
Quote:
Originally Posted by PeteC2 View Post
I am guessing that this is a "power" issue, motherboard related, not an LCD issue at all. based on the fact that you are getting no hard drive, lights, or anything...this does not sound like anything to do with the inverter.

I think that when you plug in an external monitor and it boots up, it is throwing folks off track.

That it runs fine on battery power alone, leads me to suspect that there is an issue somewhere on the mainboard, likely to do with the AC conversion.
thanks you i will order a power jack and also a new power ac cord and see and will let you know thank u all
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post #7 of 12
3/16/09 at 1:16pm
Thread Starter 
Ok i just got back my new power cord ac i check the volts with a meter and its good ...LAPTOP WORKS PERFECT ON BATTERY ALONE ,when i plug in the adapter wont do nothing it will not even show the charge light or power light i try also ac alone and no battery and nothing... i want to let u know guys so you can give me your last bet , before i pay 150 to replace powerjack or dc jack ...THANKS
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post #8 of 12
3/16/09 at 7:16pm
ryant, I was talking about the AC conversion within the laptop, not the "power brick". I still suspect that it is the circuitry on the mainboard itself. It may be just the input jack, but based on your description of what is happening, I am afraid that it is more likely the motherboard itself (I hope that I am wrong)
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post #9 of 12
3/17/09 at 2:26am
Thread Starter 
Can A Dc Jack Go Bad Even If Its Not Broken From The Soldier ? What Happend With This Laptop Is That My Mother Had It On Her Lap While It Was Conected And The Laptop Felt And Bent The Dc Jack Pin ... So I Opend The Laptop And Check Dc Jack And The Jack Look Soldier On All Parts But The Pin Of The Jack Was Bent So I Straighne It Out And Try It And Been Having This Problems ...

Sorry For The Caps It Late And It Dark Here
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post #10 of 12
3/19/09 at 11:33am
Looking like you have a short within the power jack, when you tried to straighten it out.

cheers ...
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post #11 of 12
3/19/09 at 6:12pm
Quote:
Originally Posted by qhn View Post
Looking like you have a short within the power jack, when you tried to straighten it out.

cheers ...
Yep, now with the details, I agree! At least that is not a terrible problem to fix...
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post #12 of 12
3/26/09 at 6:16pm
I have an extra DC for this model if ya would like it
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