At 11:05 AM 5/16/2005 -0500, you wrote:
>
>
>-----Original Message-----
>From: piclist-bounces@MIT.EDU [mailto:piclist-bounces@MIT.EDU] On Behalf Of
>Lindy Mayfield
>Sent: Monday, May 16, 2005 8:33 AM
>To: Microcontroller discussion list - Public.
>Subject: RE: [EE] replacing a faulty capacitor on a T.V
>
>
>
>I read this a lot, and I believe it.

I'm rather dubious myself. The energy stored in the capacitance of a 27" or 
smaller
CRT will likely be well under 10 joules, and hence not likely to kill 
anyone in normal
health. It might make you drop the set on your foot. The fat electrolytic 
power supply
capacitors are probably more dangerous, and VERY deserving of proper 
respect. They
store enough energy to burn the skin, especially if your skin is unusually 
conductive
(wet/sweaty).

Has anyone making these claims pointed to a single cite of such a fatality? 
I'm sure
plenty of people have gotten a shock. I probably have, but I can't 
remember. ;-)


>  But I was always curious how the experts
>discharge these caps?

Ideally, through appropriately rated resistors (both voltage and current). The
old-fashioned method of shorting to the chassis can damage modern sets.
DO NOT use a regular resistor, it will most likely arc and can damage the set.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
 >>>Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff


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