• Home
  • Help
  • Search
  • Login
  • Register
  Show Posts
Pages: [1]
1  General Category / General Discussion / Re: Two plugs found dead in Mexico on: December 23, 2011, 08:41:25 PM
Hello! I made this thread over a year ago describing the same issues. I tested the power supply, and it showed that it was working fine - something I think I'm reading from the original post? I even built an htpc to serve the function I was using my sheevaplug for, and a few extra goodies - just because I didnt want to have to deal with Global Scale again.

Depending on the price of the power supply and the shipping costs, I may purchase one and attempt to revive my year-gone sheeva!
ehhh. Turns out its ~$13 USD for the power supply and another $12 for shipping. I don't know if I can justify that...

Thanks so much for posting this!
2  Hardware and U-Boot firmware / Hardware / Re: SheevaPlug Development seemed to be in reset mode... on: February 21, 2011, 03:15:21 PM
You have a bad link there.


Bottom photo, 6525.JPG upper right corner on the top edge, labeled SW1 RESET

HTH, Jim

Thank you for pointing that out.
3  Hardware and U-Boot firmware / Hardware / Re: SheevaPlug Development seemed to be in reset mode... on: February 21, 2011, 01:52:45 PM
I couldn't find an edit button so I'm making another post.

I my plug's PCB says its a 'power plug rev 1.3' just like the one found here.

I can provide any extra info if asked.
4  Hardware and U-Boot firmware / Hardware / Re: SheevaPlug Development seemed to be in reset mode... on: February 21, 2011, 12:30:34 PM
I know that this thread is /very/ old, but it seems that I have the same issue.
I made this topic http://plugcomputer.org/plugforum/index.php?topic=2320.0 a while ago and it seems I have the same issue.

However, I cannot find a big red button in my sheevaplug.
Can anyone take a picture or describer where it might be?

Thank you!
5  Hardware and U-Boot firmware / Hardware / Re: Another SheevaPlug bites the dust on: November 07, 2010, 08:05:29 AM
And mine was behind books on a shelf. Heat seems the be the culprit. I was booting from the nand but had ubuntu mount an external hdd as /home /usr and /lib.
Maybe something melted on the pcb or the processor was damaged?
6  Hardware and U-Boot firmware / Hardware / Re: Another SheevaPlug bites the dust on: November 06, 2010, 04:52:54 PM
Same problem here, bro.

Was there a substantial amount of heat where the plug was located? Did it have high load averages often? I'm thinking this is a problem with the kirkwood processor.
7  Hardware and U-Boot firmware / Hardware / Re: Dead Plug? on: October 30, 2010, 08:07:53 PM
My pc doesn't even recognize that anything has been pluged into the usb port, but it dose when i plug in my iPod Nano, I bought a new charger thinking that was the problem so the cable is fine. Anyone got any ideas? Pls I need help, Thank you.

Same here mate. So it looks like no one has any knowledge of our issues.
Do you have the same LED issue as I do? Look at the first post.
8  Hardware and U-Boot firmware / Hardware / Re: Dead Plug? on: October 16, 2010, 06:00:53 PM
Bump. Any experience?
9  Hardware and U-Boot firmware / Hardware / Re: bricked plug, power unit fine, what else to try? on: September 27, 2010, 09:59:53 AM
Yea OP, I've got the same issue going on here: http://plugcomputer.org/plugforum/index.php?topic=2320.msg13033

I dont think it has anything to do with being bricked, because it just 'stopped working,' like mine did. The issues didnt occur duing flashing or anything. I'm betting its a hardware issue :/
10  Hardware and U-Boot firmware / Hardware / Re: Dead Plug? on: September 25, 2010, 04:40:18 PM
I would bet it's another case of bad capacitors in the power supply. I noticed my sheevaplug was dead yesterday. The green light was blinking about once a second, and the lights on the ethernet jack, yellow and green, were also blinking in sync. I took it apart, opened the power supply, and found a "bulged top" capacitor. 1000uF @ 10V.

I removed the cap and cleaned up some of the leaked fluid from it with a swab and alcohol. An old motherboard on the scrap heap had a 1000uF @ 6.3V that was the same physical size, so I stuffed it in and it came right up again.
I did measure the voltage across it and it was a 5V supply, so the 6.3V replacement was OK.

See "Capacitor Plague" on wikipedia.

I think I saw a post somewhere about a $10 replacement supply for out-of-warranty units, but I usually fix stuff myself.

Update: The $10 replacement may be rumor. It's here on plugcomputer.org "Topic: Replacement Sheevaplug power supply: What's the best thing to do?"

Thank you immensely for posting. I will open my plug later tonight and see if I could diagnose it.

Edit: I've just taken a look inside, and the psu is fine. Something on the PCB is messed up. I noticed that between the metal plate on the back of the PCB (which I assume to be the heatsink) that there is a chip without a pad. Most of the chips have a layer of some sort of material between them and the metal plate, but one of them doesnt. I think I'll cut off the plate tomorrow and see if there has been any damage to the chip.

Edit2: well, it turns out that missing piece is normal. I contacted some one else and they said that they were missing the same piece of material on the same chip. I have no clue whats wrong :/
The ethernet port's lights are always on. Even if I hit the processor reset, the LEDs dont flash or turn off like I think I recall them doing before all this. The green power light comes up, and no blue light. I also cannot access the serial console and running
sudo  ../openocd -f board/sheevaplug.cfg
results in
lucas@lucas-laptop:~/sheeva/sheevaplug-installer-v1.0/uboot/openocd/config$  ../openocd -f board/sheevaplug.cfg
Open On-Chip Debugger 0.2.0 (2009-07-26-14:56) Release
$URL: http://svn.berlios.de/svnroot/repos/openocd/tags/openocd-0.2.0/src/openocd.c $
For bug reports, read http://svn.berlios.de/svnroot/repos/openocd/trunk/BUGS
2000 kHz
jtag_nsrst_delay: 200
jtag_ntrst_delay: 200
dcc downloads are enabled
Error: unable to open ftdi device: device not found
Runtime error, file "command.c", line 469:

So :/ Any ideas?
11  Hardware and U-Boot firmware / Hardware / Dead Plug? on: September 22, 2010, 07:38:12 PM
Hello, I've had my sheevaplug (purchased from Global Scale) since just after Christmas and its been running extremely well for what I've been running on it (two instances of rtorrent, irssi, twonkymedia, an ircbot, and some other stuff). I run ubuntu 9.04 and have /home /var and /lib on a 1TB WD external drive. It has it's own power supply. I have a usb hub plugged into the sheevaplug's usb port. The usb hub has its own power source and the external drive was plugged into the hub.

Last night I logged on to it via ssh, and everything was well.
When I got home from school today, I wanted to check how things were going and attempted to ssh into it. No response. So I go upstairs to my router and check on it. No Blue light. I thought it was odd so I unplugged the sheevaplug from the wall, let it sit a minute, and plugged it in again without anything plugged into the USB port and the ethernet cable removed from the sheevaplug. Once again, the green power light was on but the blue light was not. Both ethernet lights were glowing, something I dont remember happening without the presence of the ethernet cable. The processor reset button also doesnt make the ethernet lights flash or go out as I remember them doing before this issue.

There are no foul smells emitting from the sheevaplug and a different usb powered hub lights up, leading me to believe that the psu is not damaged. I dont want to open the sheevaplug and break the seal if there is a remote chance of Global Scale RMA'ing or sending me a new one. When or if they deny it, I will be willing to open it.

Has anyone had similar issues with their plugs before?

Edit: Well, I've opened it and the psu is perfectly fine. I also cant access the plug via the serial console.
Pages: [1]