"j" wrote in news:1171224282.081911.60940
@k78g2000cwa.googlegroups.com:

On Feb 8, 11:49 pm, "j" wrote:
I've decided to fix the set, believe it or not, when it warms up the
picture is still great.

I have access to electricians who fix boards at work. They do this or
machines don't run. Would it be wise to try this repair with some
help, or let the tv repairman handle it. Also, I have a friend who
sends his amps out to be reworked and upgraded to higher grade
capacitors, maybe his contact would be more reliable at repairing the
board, if I removed it. Will better capacitors make it look any
better, or is that overkill? My friend swears by his amps after being
reworked, but he has a very high end Class A HT ($30,000) set-up.

Thanks again for your help.

I take it silence means it's not a good idea?

Cold solder joints, broken traces, defective
transitors/ics/capacitors/resistors, all can cause intermittent and
thermally related problems.

Changing all the capacitors might fix it. It might not.

I suspect that sending your board to the people that fix your friends amp
may produce a bill similar to the bills he gets for work on his amp. You
probably are not willing to pay that much.

As for his swearing by his amp, "A mother's opinions about her children's'
beauty, intelligence, goodness, et cetera ad nauseam, keep her from
drowning them at birth. [Robert Heinlein]"

With high speed A-to-D(analog to digital) and
high speed, high power D-to-A,
it is possible to produce amps (with almost any filter profile you might
desire) that accurately amplify from DC to above the hearing range of any
human, for a LOT less than $30k.

Beauty is in the ear of the listener, however.


--
bz 73 de N5BZ k

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

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