The PIC does not start its program.

[Ted's]

The circuitry is actually far beyond basics. There is even a IR receiver + software decoding included aswell as some other modern items.

I excluded anything being unimportant for this issue.

[skimask]

The circuitry is actually far beyond basics. There is even a IR receiver + software decoding included as well as some other modern items.

See! What did I say! It's so very complicated! IR receivers...firmware decoding... So much going on!

But...like anything else...
If the car won't start, how do you know the automatic transmission will upshift or the anti-lock brakes actually work?

[Darrel Taylor]

I think you've certainly covered the bases on what NOT to do with a PC board.



Throw that one out. Get a new soldering iron, some 60/40 solder, some liquid flux, and a large pencil eraser. And try again.

[Darrel Taylor]

Also, from the 2 indentations on the melted transistor, it looks like you are soldering with something like this ...



You really need something smaller. A 40W pencil type will do.

[skimask]

I think you've certainly covered the bases on what NOT to do with a PC board.
....
Throw that one out. Get a new soldering iron, some 60/40 solder, some liquid flux, and a large pencil eraser. And try again.

It might've been easier to show the GOOD solder joints and the 'finer' points of this PCB.
Nothing like a properly tinned, properly cleaned, fully dewetted pad with a proper concave fillet between the lead and the pad connecting the 2 parts...
I saved those 4 pictures and I sent them to the instructors at the 2M-CCR class I took last year as examples of what NOT to do.
(BTW - I saw 2 pads that would pass at that 2M-CCR course as 'acceptable' in the upper left corner of the 3rd picture, the rest....fail.)

[Ted's]

Darrel Taylor, it is much better to circle them on the picture instead of cutting them out.

As you are admin, I want you to increase the maximum picture size to 4MB for me to be able to upload high quality pictures.

[Darrel Taylor]

[Ted's]

Can I help you?