Conall
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HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 2:54 pm

I fear i have done something utterly stupid and wrong. I used my Samsung phone charger to power my Rasberry Pi for the first time and a component (Labelled as "D1") is letting out smoke. I immediately disconnected the power source and have not braved to try again. Why has this happened and is my Rasberry PI broken?

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AndrewS
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 3:18 pm

Doesn't sound like you've done anything wrong, so I'd suggest sending it back for a replacement.

Lorian
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 3:28 pm

Sounds like the power supply might be over voltage.

More info here

http://www.raspberrypi.org/phpBB3/viewt ... 63&p=95868

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Gert van Loo
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 3:32 pm

That will happen if your HDMI cable has a short.
Disconnect you HDMI cable and it should not longer smoke.
Instead of waiting for it to smoke you might keep a finger on D1.
The advantage is that you will notice much quicker if something is wrong so you can switch it off faster.
The dis-advantage is that you might burn your finger (which heals faster then your Pi).

I would make sure that you have a FAST way of disconnecting the power. e.g. use a switched socket.

JeremyF
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 3:33 pm

http://www.raspberrypi.org/phpBB3/viewt ... +coded+pcb

D1 is part of the HDMI thingies, and I would suspect like Lorian says that you've passed too much voltage through the Pi.

edit:listen to Gert
{sig} Setup: Original version Raspberry Pi (B, rev1, 256MB), Dell 2001FP monitor (1600x1200), 8GB Class 4 SD Card with Raspbian and XBMC, DD-WRT wireless bridge

Conall
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 3:36 pm

I was lucky enough to be send two of the RasPi's. Its the same HDMI cable i use for my xbox as well and it causes no problems?

akkarin
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 4:39 pm

Hello,

I had the exact same Problem.
And the HDMI cable does not have any short at least it is working with my notebook and workstation, so?

And putting the finger on wouldn't have helped cauise it was really _instantly_

It was the first time I was powering on the rpi as well.

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Gert van Loo
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 5:12 pm

I am just applying Occam's razor: so it is most likely a short of the HDMI power pin on the board. That should not have gotten past the production test.
If so, I am curious: Is it the PCB (copper short), is it a soldering short or is it shorted inside the connector.

akkarin
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 5:30 pm

Well I'm not sure how I can find out?

I just uploaded a picture. http://f.imgtmp.com/JSVh9.jpg
There you can see that D1 is completely smoked.

Conall
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 9:08 pm

akkarin wrote:Well I'm not sure how I can find out?

I just uploaded a picture. http://f.imgtmp.com/JSVh9.jpg
There you can see that D1 is completely smoked.
Mines looks a bit like that too

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Gert van Loo
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 9:23 pm

It is very difficult to find out.
Copper might be visible on the PCB.
Short on soldering would be most likely between HDMI pins 17 & 18.
Inside the plug is impossible to see.
I though of another possible error: C75 could be shorted or soldered badly.

It is not important for me but for RS/Farnell , I assume (hope) somebody is analyzing the returns and uses the result
to improve the production. After all the production has only just started with about 200-300K out there.
There are still another,million of two to go :-)

akkarin
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Re: HELP! My RasberryPi is smoking!

Fri Jun 22, 2012 9:28 pm

Ya. Well I'll see what they are gonna say.
Just sucks that I have to wait now for long time again till I get my hands on a new RPi.

But well... :)

thexman
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Re: HELP! My RasberryPi is smoking!

Sat Jun 23, 2012 9:47 am

my understanding was RS and Farnell retained some stock for faulty replacements so you don't have to rejoin the Awaiting a Pi list.

can RS/Farnell confirm this
one armed controls engineer, my grammar is bad but lets face it most keyboards don't suit a one armed man

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Burngate
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Re: HELP! My RasberryPi is smoking!

Sat Jun 23, 2012 10:45 am

Silly question, I suppose, But what happens if D1 is removed? (I would guess it's removed itself by that pont!)
What would be the effect on the HDMI system? I assume the monitor wouldn't come out of standby or switch automatically to that input, but does it need the 5v from the Pi to work? And could hdmi_force_hotplug=1 help?

pjc123
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Re: HELP! My RasberryPi is smoking!

Sat Jun 23, 2012 11:14 am

HELP! My RasberryPi is smoking!

I recommend you try the patch.
My Raspberry Pi Project Page:
https://www.flaminghellmet.com/launch/

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computerpie
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Re: HELP! My RasberryPi is smoking!

Sat Jun 23, 2012 11:46 am

The solder joints on your board look ugly. The top joint on D1 almost looks like a cold solder joint or it didn't reflow right. Also D2 and D3 joints (just above the HDMI connector) look blobby..... is that a word?

Compare your board to this one http://elinux.org/images/0/04/RaspiFront-Farnell.JPG to yours http://f.imgtmp.com/JSVh9.jpg .

I'd look into getting a replacement.

Just my 2 cents.
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