MOTM

My rear-projection TV had this problem; the symptom was that vertical sync
seemed to be erratic, with the picture jumping up and down. It turned out to
be the picture-in-picture board. The service person said a Chinese capacitor
company had recently won all the business with super low prices, but the
lifetime of their caps was turning out to be incredibly short. Once we
replaced all their caps the board was fine and has been working for about 13
years now. -BobC

 

From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On Behalf Of John
Blacet
Sent: Wednesday, October 24, 2007 5:01 PM
To: motm@yahoogroups.com
Subject: Re: [motm] electrolytic capacitor life span.......

 

Well, ya know that's the manufacturers warranty. Like a fridge with a one
year warranty, lasts for 20 years and you throw it out only because it got
too ugly?

Caps are probably better than they used to be but you might want to Google
the subject if you really want something MORE to worry about....:> !!!

BTW I had a Canon HI-8 video cam in the 90's. It was a beautiful thing but
apparently, the SM caps all went bad in 2 years. At least that was the
story that one repair shop gave me; wanting $200 to replace ALL the
caps.....grrrrr.

> Hello,
> Another newbie question I'm afraid but could anyone please tell
> me what the normal life expectancy is for electrolytic capacitors as
> I have seen some panasonic ones stated to be 2000 hours. Is this
> longer or shorter than usual? How does this compare to say Mouser
> equivalents?
> Thanks in anticipation
> Kerry
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-- 
John Blacet