The HV transformer. Power it in a dark room, you'll probably see it spark.
The HV transformer. Power it in a dark room, you'll probably see it spark.
So I just kept cycling power and... it has been powered on for over 2 hours now with no problems.
I'm beginning to suspect the electrolytic caps. Being el-cheepo (no-name) brand, they probably went intermittent short or low ESR and blew the fuse. After replacing the fuse (remember it's been over a year since this thing has been powered on for more than a few seconds at a time) the caps needed a little time to reform.
Or maybe a power surge popped the fuse (and the cap re-form thing still applies).
I think I'll replace the caps -- for peace of mind -- and see if it continues to work.
-- John English
High ESR !
Doh!!
Yes, of course.
(Homer answer: "Oh, so maybe I shouldn't have replaced all those good caps?" ;-)
-- John English
Just to follow up...
Replaced all the caps (using Panasonic FM series) in this monitor and it works like new. And should last quite a bit longer.
-- John English
Thanks for passing on your results, John. It's always nice to know how these things turn out.
-- W . | ,. w , "Some people are alive only because \\|/ \\|/ it is illegal to kill them." Perna condita delenda est ---^----^---------------------------------------------------------------
I concur. It's all-too-common to follow such a thread that is years old only to find no-one cared to post the results. I like to think about the guy or gal who is Googling a few years from now and comes across this thread. (Hi!) ;-)
-- John English
Speaking of that, what ever happened to the self-tuning piano? Was that guy ever going to post a .WAV file or something, of the piano tuning itself?
Thanks, Rich
I believe it turned out that the only existing documentation of the self-tuning piano in action was in the form of miniature photographs stored as multiple images on a common sheet of film, and these proved impossible to correctly adjust for conversion into any electronic media. For as we all know, while you CAN tune a piano, you can't tune a fiche.
Bob M.
Well played, sir!
-- Rich Webb Norfolk, VA
Ngung, ngung, ngung!!
-- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads!
Not *alone*, certainly, but perhaps if you had a tuner helper...
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
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