Re: CS>Odd Silver Puppy behavior

[Ode Coyote]

Excellent.

Ode

On Fri, Jan 1, 2016 at 12:48 PM, Jerry Durand 
wrote:

> I ran another batch overnight with 1 hour of overtime and the lights are
> now out.  I get a reading of 12uS so it looks like it worked and the
> calibration is still good.
>
> On 12/30/2015 10:51 AM, Jerry Durand wrote:
>
> I've buttoned it up, will let you know if I have any further problems.
>
>
> --
> Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
> tel: +1 408 356-3886, USA toll free: 1 866 356-3886
>
>

Re: CS>Odd Silver Puppy behavior

[Jerry Durand]

I ran another batch overnight with 1 hour of overtime and the lights are
now out.  I get a reading of 12uS so it looks like it worked and the
calibration is still good.

On 12/30/2015 10:51 AM, Jerry Durand wrote:
> I've buttoned it up, will let you know if I have any further problems.
>

-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886

Re: CS>Odd Silver Puppy behavior

[Jerry Durand]

I'll pop the hood today and have a look around, any bad joints, bridges,
balls are all easy to fix.

On 12/30/2015 03:58 AM, Ode Coyote wrote:
> It actually seems to be working correctly except the signal that tells
> the yellow LED what to do is telling it to stay on rather than turn
> off. [like getting a zero rather than a one]
> Is it possible for a programmer to glitch and not detect the difference?
> ..or maybe a tiny solder ball rolled into an I/O pinor...a cold
> solder joint disconnected...or
>
> Be glad to replace it.
>
> Ode
>

-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886

Re: CS>Odd Silver Puppy behavior

[Jerry Durand]

I've buttoned it up, will let you know if I have any further problems.

Inspection report:

I found a couple of solder balls but they were stock solid in the flux
on the back of the board.  I removed them.

I found one surface mount joint with minimal solder but it looks
connected ok so I left it since it would be hard to get at (on the
bridge rectifier).

The rest of the joints look fine, no solder balls on top of the board.


Notes:

I reassembled it with some polyimide tape (Kapton(tm)) under the two
screw heads over in the analog part in case they were causing problems.

It looks like you use rosin core solder for the through-hole parts,
since that's a natural organic product it can cause some issues as it
ages.  A good "no-clean" flux is engineered to not cause any issues
(corrosion or high impedance shorts).  After running into a flux issue
on one product I switched to Kester SN96.5AG3CU.5 with 275 no-clean
flux.  Since this is close to $100 a spool now we're experimenting with
silver-free solder, SN99.3CU0.7 by MG Chemicals since it's half the price.


On 12/30/2015 09:03 AM, Jerry Durand wrote:
> I'll pop the hood today and have a look around, any bad joints,
> bridges, balls are all easy to fix.

-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886

Re: CS>Odd Silver Puppy behavior

[Ode Coyote]

It actually seems to be working correctly except the signal that tells the
yellow LED what to do is telling it to stay on rather than turn off. [like
getting a zero rather than a one]
Is it possible for a programmer to glitch and not detect the difference?
..or maybe a tiny solder ball rolled into an I/O pinor...a cold solder
joint disconnected...or

Be glad to replace it.

Ode

On Tue, Dec 29, 2015 at 11:31 AM, Jerry Durand 
wrote:

> H, did it again.  I left it running overnight with only +1 hour set.
> This morning the yellow light was on solid, colored LED off.
>
> I unplugged it, removed it from the CS, plugged it back in and put it
> back.  Green light.  Clicked the button, yellow came on.  Now the yellow is
> flashing one as it should.
>
> Since it went into overtime quickly, I assume it was done and messed up
> either in the handoff to overtime or the shutdown.
>
> Anything I can test on this?  I have a full electronics bench with SMT
> capability.
>
> --
> Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
> tel: +1 408 356-3886, USA toll free: 1 866 356-3886
>
>

Re: CS>Odd Silver Puppy behavior

[Jerry Durand]

H, did it again.  I left it running overnight with only +1 hour
set.  This morning the yellow light was on solid, colored LED off.

I unplugged it, removed it from the CS, plugged it back in and put it
back.  Green light.  Clicked the button, yellow came on.  Now the yellow
is flashing one as it should.

Since it went into overtime quickly, I assume it was done and messed up
either in the handoff to overtime or the shutdown.

Anything I can test on this?  I have a full electronics bench with SMT
capability.

-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886

Re: CS>Odd Silver Puppy behavior

[Jerry Durand]

I unplugged it, removed it from the water.  Plugged back in and replaced
in the water, green light came on.  Pressed the button and the yellow
light came on.  I checked after several hours and both lights were out
so it looks to be back to normal.

I don't know which processor you're using, but I had a lot of trouble
with that with some TI processors. On initial power up they were fine
but would hang on brownouts.  On investigating their power on detect
circuit released the RESET at a reasonable operating voltage but
wouldn't apply it again unless Vdd went below something silly like
0.1V.  I made sure they understood how stupid I considered that and
since I've designed chips I KNOW you don't have to do it that way. 

I now use NXP ARM Cortex processors for most things and haven't had a
single brownout issue that I'm aware of.  They even have 8 pin DIP
versions!  (Yes, a 32-bit ARM in an 8 pin package seems silly but
they're cheap and come in handy at times.)

On 12/26/2015 05:15 AM, Ode Coyote wrote:
>
>
>   I've never seen that before.
>
> Sounds like you may have experienced a micro power outage that reset
> and mimicked program inputs that confused the computer.
>  If you do a power off reset, [unplug/replug] does it stay that way?
>

-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886


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Re: CS>Odd Silver Puppy behavior

[Ode Coyote]

  I've never seen that before.

Sounds like you may have experienced a micro power outage that reset and
mimicked program inputs that confused the computer.
 If you do a power off reset, [unplug/replug] does it stay that way?

On Sat, Dec 26, 2015 at 1:04 AM, Jerry Durand 
wrote:

> My Silver Puppy (2015 model) is acting odd.  I set it up earlier today
> with a pint of distilled water and one tick of overtime.
>
> Around dinner I saw the yellow light flashing so I knew that meant it
> would be done soon.
>
> Well, now the yellow light is on solid and the red/green out is out.
> Been that way for a while now.
>
> ???
>
> --
> Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
> tel: +1 408 356-3886, USA toll free: 1 866 356-3886
>
>
> --
> The Silver List is a moderated forum for discussing Colloidal Silver.
>   Rules and Instructions: http://www.silverlist.org
>
> Unsubscribe:
>   
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