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Limpaar
Paper Tape
Posts: 6
Registered: ‎04-01-2015
Location: Estonia
Views: 2,613
Message 41 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

Does this power connector has a standard name? How is it called?

I checked on the wikipedia and complete USB section knows nothing about such connector.

I'm a very mobile person and travelling about 180 days per year in different coutries. Needed the car charger for my brand new Y3P, but local distributor could not help me with that (either could Swedish distributor).

I tryed to find it on lenovo page, but it seems to not give me any results. Is there car charger for Y3P available at all?

jtitman
Punch Card
Posts: 75
Registered: ‎01-09-2015
Location: USA
Views: 2,582
Message 42 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

Lenovo 40W Slim travel Adapter (UL)

Part number: GX20H34904

http://shop.lenovo.com/us/en/itemdetails/GX20H34904/460/FB655FA7A2834E04AED9731463CD174E#GX20H34904

Here’s all the info. I don’t know about a car charger.

Moderator edit: Fixed link to current location in US lenovo.com shop.

Limpaar
Paper Tape
Posts: 6
Registered: ‎04-01-2015
Location: Estonia
Views: 2,578
Message 43 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

Link doesn't open.

But this part number works in search now. It's weird though, that if you open shop and go to Yoga 3 Pro laptop section and open accessories - there is no charger under there (neither the link to this product).

http://shop.lenovo.com/us/en/laptops/lenovo/yoga-laptop-series/yoga-3-pro-laptop/#tab-accessories_-_...

Thanks anyway

 

But I still need the car charger. I'm on the road most of the time.

jbmoser
Paper Tape
Posts: 6
Registered: ‎02-09-2015
Location: Switzerland
Views: 2,538
Message 44 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

@Lenovo, when does the Yoga 3 Pro power adapter finally become available in Switzerland as a spare part?? Still waiting to be able to order it for over 3 months...

davidmoy
Paper Tape
Posts: 5
Registered: ‎04-10-2015
Location: usa
Views: 2,464
Message 45 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

Ashkadi,

 

I am in similar situation as you.  I blew my IC.

 

Do you know which wires you applied the 20v too?  Is it the White and Black?

 

Also Do you know where your tech shop got the new IC to replace it with from where?

 

Thank you for your help.

jtitman
Punch Card
Posts: 75
Registered: ‎01-09-2015
Location: USA
Views: 2,453
Message 46 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

I'm regret I don't know the answer to your question.

Contact Lenovo support.

Highlighted
davidmoy
Paper Tape
Posts: 5
Registered: ‎04-10-2015
Location: usa
Views: 2,450
Message 47 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

For some reason, I doubt Lenovo will tell me...

Community Moderator
Community Moderator
Posts: 1,060
Registered: ‎07-13-2010
Location: CA
Views: 2,446
Message 48 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

Unfortunately, it looks like the power regulation circuit is not isolated from the main board. I'd have to evaluate the circuitry, but from the below photo, it looks like there are 5 pins coming off the yellow USB 2.0 charger port. Without metering the pins, and given that the connector isn't USB 3.0, I'm assuming the extra pin is the 20V bus. If you applied 20V to the 5V bus by mistake, there's a good chance you fried the controller for several USB ports.

 

Unfortunately, again, there is no way to repair this. The likelihood of being able to source the exact IC, having a proper rework station, and a steady hand is very unlikely. You'll have to source a new motherboard, or get Lenovo to repair it.

 

I sympathize with your situation. Lenovo won't tell you the IC, but you can look for burn marks on the motherboard. If you find them, you can post a pic here and I can identify the IC on my board if it's printed on top.

 

http://content.hwigroup.net/images/products_xl/268083/4/lenovo-yoga-3-pro-silver-80he003wnx.jpg

←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗
Tap that kudos button if I helped ^^
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davidmoy
Paper Tape
Posts: 5
Registered: ‎04-10-2015
Location: usa
Views: 2,440
Message 49 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

HI,

 

I have determined that it's a Capactitor.  The Markings look like E8 J5.  I'm having a hard time finding that on mouser.com

jtitman
Punch Card
Posts: 75
Registered: ‎01-09-2015
Location: USA
Views: 2,436
Message 50 of 88

Re: What's with the Yoga 3 Pro power adapter - it's a USB charger too?

You're a far braver man than me!

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