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Jim Yanik

wrote in
:

On Thu, 17 Sep 2009 22:18:31 -0700, Smitty Two
wrote:

So the g.f. says her bedroom TV won't turn on. If she hits the momentary
on/off button on either the TV or the remote, the green power indicator
lights briefly but goes out again immediately. It's a 1991 Panasonic 19"
CRT, model # CTN1956R.

She's coming down (300 miles) this weekend and will bring the thing with
her if there's a reasonable chance that I can fix it fairly readily and
for little if any money, with some help from the group of course. At the
moment I'm not gainfully employed so my time is free anyway.

I can solder and use basic test equipment and sort out ohm's law and
stay away from charged capacitors, but my AS degree in electronics
technology is rusty.

Obviously a 19" CRT is virtually worthless, and if this isn't a fairly
obvious fault we'll pick up another one free or cheap, or upgrade to an
LCD. So feedback of any appropriate nature is welcome.
I think your last paragraph says it all. The TV is 19 years old. IF
you knew what values of caps were used in the power supply secondary
you could replace the lot and have a good chance of fixing it.
Without that information it is unlikely you would be able to fix it in
a weekend.

A few hours spent perusing your local Craigslist's electronics
section will likely turn up a newer, working TV for little more than
the cost of repairing the Panasonic. Ideally, this would leave time
for other, more pleasant passtimes. Such as watching the WNBA
playoffs.

I'm of two minds about upgrading to LCD at this time. I recently
purchased a new Sony 19" LCD tv. The retailer provided a 5 year
warranty. I think it very unlikely the TV will last 5 years. In
another 5 years I am confident a more reliable set will be available
for less money.

PlainBill

I just picked up,from the trash,a 13" TV built in 1989,and it runs great.
I use it with one of my ATSC converters.
I also had a "recycled" 1986 12" TV that had a great CRT pic,but the cold
solder joints became too much a problem,so I replaced it with the 13."

--
Jim Yanik
jyanik
at
kua.net