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10-13-2017

BE

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Lenovo Yoga 3 1470 dead?

2017-10-13, 15:06 PM

Dear,

 

I'm really disappointed with Lenovo. I bought a Lenovo Yoga 3 1470 two years ago by Amazon. After 15 days, impossible to start the laptop. Fortunately, Amazon sent me a new one.

 

Few days ago, impossible to start again the laptop. No charge, the charge led doesn't work, nothing happens... I bought a new adpater to Amazon but unfortuntely, nothing happened with the new one, no charge led, no start, nothing...

 

I tried to remove the battery, push on power button during 30 seconds, replug the battery and start but the same nothing happened.

 

No warrantly...Do you have an idea? Please help me, i bought this laptop 800 euros two years ago....

 

Thanks.

 

Eric

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9994 Posts

11-30-2015

PH

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Re: Lenovo Yoga 3 1470 dead?

2017-10-13, 15:32 PM

Hi ericclosset,

 

Welcome to the Community Forums.

 

The hardware manual does offer power checkout guideline that you may already have followed (page21-22):

 

To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Connect the AC adapter.
3. Make sure that power is supplied when you turn on the computer.
4. Turn off the computer.
5. Disconnect the AC adapter.
6. Make sure that the battery pack supplies power when you turn on the computer.


If you suspect a power problem, see the appropriate power supply checkout:
• “Checking the AC adapter” on page 21
• “Checking operational charging” on page 21


Checking the AC adapter
You are here because the computer fails only when the AC adapter is used.
• If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
• If the computer does not charge during operation, go to “Checking operational charging”.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following figure: Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
• Replace the system board.
• If the problem persists, go to “Lenovo Yoga 3 14” on page 27.
Note: Noise from the AC adapter does not always indicate a defect.


Checking operational charging
To check whether the battery charges properly during operation, use a
discharged battery pack or a battery pack that has less than 50% of the total
power remaining when installed in the computer.

Perform operational charging. If the battery status indicator or icon is not lit,
remove the battery pack and let it return to room temperature. Reinstall the
battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator is still not lit, replace the system board.

 

If the steps points you for a replacement motherboard I would suggest of having it checked in a service center, specially those that can do systemboard troubleshooting. Inquire about repair cost including labor charge so that you can decide on how best to proceed.

 

Hope this helps answer your query.

 

Regards

 



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