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4 Posts

12-10-2012

Cambodia

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Lenovo IdeaPad Z470 got black screen when power on

2012-12-10, 7:10 AM

I have bought Lenovo z470 last year on November 11/2011. There are no problem at all but a few day a go i noticed that start up screen load was longer than usual. This morning when I power on the laptop nothing appear not even LENOVO logo on POST. I think that my laptop have problem with the screen so i try to hook up with the TV and Moniter but still no luck. The HDD light didn't even blink i try many solution but still not fix it. Any idea? I hope i can fix it real soon so i can continue my work.

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145 Posts

09-12-2012

Bangalore

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Re: Lenovo IdeaPad Z470 got black screen when power on

2012-12-10, 8:03 AM

Hello and Welcome to the forum.

 

It looks like a hardware issue. Try doing a power drain.

 

Steps for power drain

1. Completely power off the laptop.

2. Disconnect both battery and adapter.

3. Press and hold the power button for at least 30 seconds.

4. Connect only the adapter, power on the laptop and check if it works normally.

 

If it works, then do a proper shutdown, connect the battery and check again.

 

If the above step does not help, then the next step would depend on the laptop warranty status and your comfort level in disassembling the laptop.

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4 Posts

12-10-2012

Cambodia

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Re: Lenovo IdeaPad Z470 got black screen when power on

2012-12-10, 8:17 AM

Thank you for your reply but this solution didn't work for me i try it many time but still no luck. I may have dissasamble it after all. if ther any more solution please reply.

Thanks, Regard.

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145 Posts

09-12-2012

Bangalore

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Re: Lenovo IdeaPad Z470 got black screen when power on

2012-12-10, 8:23 AM

Is the laptop under warranty?

 

If you are not sure, please check on this link before disassembling. http://support.lenovo.com/en_IN/product-service/warranty-status/default.page?

 

If it is under warranty, please do not disassemble. contact the local technical support for assistance.

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4 Posts

12-10-2012

Cambodia

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Re: Lenovo IdeaPad Z470 got black screen when power on

2012-12-10, 8:31 AM

My warranty already expire since 08/2012. Anyway,thank you for trying to help me. If i can solve this problem i will let you know :D.

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1 Posts

01-24-2013

Malaysia

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  • Message 6 of 8

Re: Lenovo IdeaPad Z470 got black screen when power on

2013-01-24, 12:59 PM

Hi, I'm having the same problem. May I know how you solve it? Thanks a lot!

 

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145 Posts

09-12-2012

Bangalore

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Re: Lenovo IdeaPad Z470 got black screen when power on

2013-01-25, 11:04 AM

wrote:

My warranty already expire since 08/2012. Anyway,thank you for trying to help me. If i can solve this problem i will let you know :D.



Hi Neatkk. Were you able to diagnose? Is the issue resolved?

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29 Posts

06-24-2013

Saudi arabia

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  • Message 8 of 8

Re: Lenovo IdeaPad Z470 got black screen when power on

2013-06-25, 11:36 AM

hi,

 

I have also the same problem getting black screen with power adapter plug in.

but if i only use battery it boot normally and for fine.

there is a conflict with ATI radeon and the power adapter.

 

Did someone resolved this issue?please lets us know..urgent

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