Greetings!
Boy am I in a pickle! While enjoying the wonders of developing at home and
dealing with the myriad issues that go along with school work and taking care of
the family, I accidentally plugged in a +12V-2A power supply into my C6713.
Guess what? You can't do that!
Now, the board only responds with the +5V LED illuminated when I plug in the
correct power supply. It gets better. The board is not mine; it belongs to my
school. I have been informed that I will have to replace the board myself.
I know that I can search the internet for a good deal but I want to check here
as well. Please share with me somewhere to replace this board. I am in a bind
because I am a student and I really can't afford to replace it but I should
have thought of that before I plugged it in. :(
Also, if there is some method to repair this board, that would be great too.
Thank you so much for reading.
_____________________________________
Accidentally Plugged In Wrong Power Supply
Started by ●November 30, 2011
Reply by ●November 30, 20112011-11-30
Hello Static,
On 11/29/2011 9:11 PM, s...@gmail.com wrote:
>
>
> Greetings!
>
> Boy am I in a pickle! While enjoying the wonders of developing at home
> and dealing with the myriad issues that go along with school work and
> taking care of the family, I accidentally plugged in a +12V-2A power
> supply into my C6713. Guess what? You can't do that!
>
You learned the hard way - if you have multiple voltage supplies with
similar plugs, you need to put a voltage tag near the plug.
I had a similar experience - I had all +5v supplies on a lab bench. In
my absence, someone brought in a telecom board with a highly similar
+48v supply...
> Now, the board only responds with the +5V LED illuminated when I plug
> in the correct power supply. It gets better. The board is not mine; it
> belongs to my school. I have been informed that I will have to replace
> the board myself.
>
> I know that I can search the internet for a good deal but I want to
> check here as well. Please share with me somewhere to replace this
> board. I am in a bind because I am a student and I really can't afford
> to replace it but I should have thought of that before I plugged it in. :(
>
> Also, if there is some method to repair this board, that would be
> great too.
>
The schematics are in the Tech Ref manual on SD web site if you do not
have one.
As long as the board is not working, do not leave it powered on any
longer than necessary.
You probably blew U2 and/or U7.
Check JP2 pin 1 and pin 2 for 3.3v.
Check JP1 pins 1 and 2 for 1.26.
My guesstimates...
JP1-1 != 3.3v, U7 blown.
JP1-1 = 3.3v && JP1-2 != 3.3v, R66 blown
JP2-1 != 1.26v, U2 blown
JP2-1 = 1.26v && JP2-2 != 1.26v, R4 blown
The above is simplified and is not all inclusive - just some thoughts to
get you started.
The above references are from my schematics - they _should_ be the same
as your board.
mikedunn
> Thank you so much for reading.
On 11/29/2011 9:11 PM, s...@gmail.com wrote:
>
>
> Greetings!
>
> Boy am I in a pickle! While enjoying the wonders of developing at home
> and dealing with the myriad issues that go along with school work and
> taking care of the family, I accidentally plugged in a +12V-2A power
> supply into my C6713. Guess what? You can't do that!
>
You learned the hard way - if you have multiple voltage supplies with
similar plugs, you need to put a voltage tag near the plug.
I had a similar experience - I had all +5v supplies on a lab bench. In
my absence, someone brought in a telecom board with a highly similar
+48v supply...
> Now, the board only responds with the +5V LED illuminated when I plug
> in the correct power supply. It gets better. The board is not mine; it
> belongs to my school. I have been informed that I will have to replace
> the board myself.
>
> I know that I can search the internet for a good deal but I want to
> check here as well. Please share with me somewhere to replace this
> board. I am in a bind because I am a student and I really can't afford
> to replace it but I should have thought of that before I plugged it in. :(
>
> Also, if there is some method to repair this board, that would be
> great too.
>
The schematics are in the Tech Ref manual on SD web site if you do not
have one.
As long as the board is not working, do not leave it powered on any
longer than necessary.
You probably blew U2 and/or U7.
Check JP2 pin 1 and pin 2 for 3.3v.
Check JP1 pins 1 and 2 for 1.26.
My guesstimates...
JP1-1 != 3.3v, U7 blown.
JP1-1 = 3.3v && JP1-2 != 3.3v, R66 blown
JP2-1 != 1.26v, U2 blown
JP2-1 = 1.26v && JP2-2 != 1.26v, R4 blown
The above is simplified and is not all inclusive - just some thoughts to
get you started.
The above references are from my schematics - they _should_ be the same
as your board.
mikedunn
> Thank you so much for reading.
Reply by ●December 1, 20112011-12-01
Indeed R4 and R66 have a significantly lower resistance than a known good
board. I blew it, literally. Thanks for the reply, Mr. Dunn.
If anyone knows where I can buy a replacement board, that would be great.
Otherwise, I have to pay for the repair cost at Spectrum Digital (I emailed
them and graciously, they offered to repair the board for a fee).
board. I blew it, literally. Thanks for the reply, Mr. Dunn.
If anyone knows where I can buy a replacement board, that would be great.
Otherwise, I have to pay for the repair cost at Spectrum Digital (I emailed
them and graciously, they offered to repair the board for a fee).
