[sdiy] Need help with a SMD kit (OT?)

[Tim Ressel]

Hi,

It may not be a blown processor. There are many possibilities. Some 
things to check:

Inspect the board for shorts  ;-)
Check the power on the board. Is the processor even powered?
Check the reset line (assuming there is one)

--tr


On 7/18/2017 6:57 AM, Elain Klopke wrote:
> Well.... Nevermind....
>
> I found my solder wick and was terribly happy to get all the excess 
> blobs off the chips. The controls and jacks went in with ease. And 
> then I plugged it in, fed it power (Red stripe where it is meant to 
> be), and nothing happened. No lights. No sound. Nothing. I have a 
> feeling that I severely overheated at least the microcontroller if not 
> a few other bits of it.
>
> That was a very expensive lesson...
>
> On Tue, Jul 18, 2017 at 6:26 AM, <paula at synth.net 
> <mailto:paula at synth.net>> wrote:
>
>     Elain,
>
>
>      I understand your frustration, I've been there :)
>
>      Best way to get rid of solder bridges on SMT chips is to use the
>     following;
>
>     1) Solder flux
>
>     2) Solder wick
>
>     3) patience
>
>     4) practice
>
>
>     you can buy numbers 1 and 2, simply cover the offending pins in
>     flux (I use a syringe) and then use solder wick to lift the bridges
>
>     number 3 comes with time
>
>     number 4 you can do by grabbing an old PCB and bridging it then
>     practicing removing the bridges.
>
>
>     Sadly I'm not in the USA else I'd offer.
>
>
>     Paula
>
>
>
>     On 2017-07-18 08:15, Elain Klopke wrote:
>
>>     Hey list,
>>     I bought the Elements diy kit from Synthcube and managed to get
>>     all the surface mount components attached using solder paste, a
>>     tiny syringe, and a hot plate. Everything melted nicely and I
>>     only burnt the solder mask a bit because I wasn't quick enough
>>     getting it off the hot plate, but the copper traces appear to be
>>     still attached to the board so I'm not too worried.
>>     And then the problems started. I let the board cool down and then
>>     started going about eliminating solder bridges on a couple of the
>>     ICs. I cleaned up one side of the microcontroller and then made
>>     the other three worse. I got one chip that was a little crooked
>>     seated properly and then another popped free and I couldn't get
>>     it resoldered.
>>     I've stepped away from the kit so I don't do more damage or throw
>>     it against the wall in frustration.
>>     Is there anyone experienced in surface mount soldering
>>     (preferably in the US) that would be willing to fix this mess for
>>     me. I'm way out of my depth and am willing to pay postage both
>>     ways and a fee for your time.
>>     Thanks in advance.
>>
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>
>
>
>
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-- 
--Tim Ressel
Circuit Abbey
timr at circuitabbey.com

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