IR Board Fried?
 

we accidently reversed the positive and negative wires on the IR board(pins 1 & 3). Unfortuantely we had a burning smell and when we tried it the correct way we get no response from our board. I think the board is fried....but this also seems like a common mistake and I thought the board would have protection against this. Please help!!!!!!!

Re: IR Board Fried?
 

What exactly are you looking for? You need to include a question. Are you looking for a new one, or how to repair yours?

Re: IR Board Fried?
 

well it seems to us that our only option is to get a new one which no one seems to know how to do. If you know of a way to find how to repair it, it would be appreciated.

Re: IR Board Fried?
 

We too had a burning smell and got no response. We used a 9V battery.
We confirmed and doubled checked that the wiring was done correctly.
I did the wiring myself and had it doubled check by another Mentor.
We did find the the voltage regulator was lose when we first smelled it.

So we are assume the voltage regulator is fried, faulty or installed faulty.

SO if anyone knows how to get a replacement, or repair let us know.

Re: IR Board Fried?
 

Seems like the IR Board is not available online so the only other option i guess is to try to fix it somehow
sorry i tried to find one for u
other option could be to try to contact FIRST and get a replacement
:confused:

Re: IR Board Fried?
 

We looked into acquiring replacement/extra IR boards.

The word from FIRST is that their supply of boards is limited. Seems that they are going to first take care of the teams whose boards were genuinely defective when they got them. After that, if there are enough remaining, they are going to consider putting them up for purchase.

Re: IR Board Fried?
 

Just get a new 5V regulator.


I can't tell you where to get it. I just used an old one from another old board.

Try and get a L805 if you can, if you can't... improvise.


I have already repaired our board twice. Both times it was because the 5V regulator died. It's too bad FIRST did not design the board with a diode to protect it from accidental reversed polarity.

Re: IR Board Fried?
 

Thanks everyone for their comments
We will be getting a new 5v regulator

Re: IR Board Fried?
 

We burnt are board up pretty bad and we contacted FIRST support through E-Mail and got a new one no problem... :D

Re: IR Board Fried?
 

The same thing happend to us, a quick trip to the electrical supply shop and for $1.40 Canadian we got 2 new 5V regulators A quick solder job (sarcastic) and it works perfect.

- Bochek

Re: IR Board Fried?
 

Yeah, your safest bet is to add another 5V regulator (make sure it is the same type or a generic brand of it) and if you want to, see if you can cut a trace and insert a diode to protect from reverse voltages (check the flow chart)

Re: IR Board Fried?
 

Well we just replaced the voltage regulator today.

And the IR Board still doesn't work.
I'm going to assume that this board never worked.

Re: IR Board Fried?
 

Contact FIRST you can get a new one.

Re: IR Board Fried?
 

Did you get a new IR board after emailing FIRST? We've emailed them at least twice and haven't heard a peep. Is there some super-secret email address we don't know about, or more likely, haven't found?

Thanks.
-Blair

Re: IR Board Fried?
 

I contacted F.I.R.S.T. when we initially had issues with the board.

The first thing they told us was we probably had a fried voltage regulator and to replace it. We did this, and the board still didn't work. I personally think it would have never worked.

I informed F.I.R.S.T. by email last evening after we had exhausted all the diagnostics we could perform on the IR board in an attempt to get it working.

The response I received this morning:
Please refer to Team Update #2. The remaining FIRST IR boards will be sold in the FIRST Store on the Innovation First, Inc. website. The boards are not available yet, but should be shortly.


Personally I'm not thrilled with the answer, but it is what it is. So when they are available we'll have to get a replacement.