On Wed, 23 May 2007, Digital Image Studio wrote:
> On 23/05/07, Cory Papenfuss <[EMAIL PROTECTED]> wrote:
>
>> Most likely a mechanical failure in the camcorder, and either a
>> mechanical failure or electronic overheating in the DVD player. Properly
>> designed solid-state electronics will last practically until the sun burns
>> out (or the electrolytic caps fail).
>
> I should add by citing a very recent example of equipment failure that
> I experienced. Yesterday my network printer printed one job but the
> next was stuck in the queue and would not print. The problem turned
> out to be the JetDirect network interface card in the printer, it was
> simply no more, nothing fried on it (and no tinned electros either
> funny enough) but the printer completely failed to recognize it any
> longer.
>
> It had on board a Philips ARM processor, Samsung RAM, Broadcom LAN
> interface and another AMD CPU plus a handful of passive components.
> I'm sure that the components could be designed to me more robust but
> I'm also sure that in this case they would have all be working well
> within their design parameters however it broke for no apparent
> reason.
>
Like I said, properly design electronic devices made with
high-quality components and attention to thermal design last practically
forever. Major causes are:
- Bad or no thermal design... especially with computer parts
- Electrolytic caps
- Electrostatic damage
- Mechanical shock (not too normal)
Citing examples of consumer-grade electronics failing often negate
the original assumption of properly and correctly designed with decent
components. Take a piece of aircraft avionics.... they live in a
*horrible* environment with heat/cold/vibration/shock/corrosion and last
literally for decades. The failures are almost always mechanical, not
electrical, and are due to the bad environment.
-Cory
--
*************************************************************************
* Cory Papenfuss, Ph.D., PPSEL-IA *
* Electrical Engineering *
* Virginia Polytechnic Institute and State University *
*************************************************************************
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