tm wrote:

"Tony Hwang" wrote in message
...
Oren wrote:
On Tue, 26 Nov 2013 13:18:19 +0000 (UTC), Danny D'Amico
wrote:

On Tue, 26 Nov 2013 00:52:40 -0600, The Daring Dufas wrote:

it's hard to diagnose a problem with even simple electronic
systems without hands on it and doing things to test it that actually
come out of your subconscious.

I agree.
I hoping, for example, that someone knows a good way to "reset"

Crying out loud!!! Find a reset or master clear pin on the micro
processor chip and jumper it to ground for few seconds... reset done.
Is it so difficult for you? You are just mouth, where is your brain
and hands? Where is the pin number? Look up the chip data sheet...



It really isn't necessary to be an asshole here. The OP has done a good
job considering his lack of electronics knowledge and very limited test
equipment. And no schematics! The "chip" has all the markings sanded
off. So tell us all, what it the part number of the processor?

tm
Hmmm.
He is not even following up on quite a few good suggestions presented
here, I lost interest trying to help. I am not a baby sitter, I am not a
spoon feeder, all I can is giving pointers, suggestions and tips.

If he really want to tackle the problem, the board has to be removed to
work bench and go through it step by step. Wish him all the luck.