TV output going yellow

[Deke]

<ray@bobnet.us> wrote in message news:h8u7pg$n71$1@Kil-nws-1.UCIS.Dal.Ca...

Thank you so much for all your comments and replies. I will try to get the
set repaired and, at least, have something to go on.

I know the newer sets are getting cheaper but my 4x3 52" set seems so nice
and large (screen-wise) and the 52" 16x9 LCDs look so tiny (almost like a
26" set) in comparison. The 16x9 ratio really sucks down on the viewing
size of the screen, doesn't it. The numbers may be the same but the visual
aspect is so different. It looks like I would need a 100" LCD to get a
similar size picture as my old set. I like the 4x3 aspect ratio better,
but I guess that shows my age (70+).

Thanks again, everyone. Ray

Heres part of a comparison chart I used. The left column is the "old" TVs,
right column
is 16:9...to get the same 4:3 picture size in the left column, you'll need
the screen size in the right column.
4:3 16:9
___________________
27 33
32.7 40
36 44
52.3 64

And you CAN move your chair closer if youre watching HDTV. I went from 16
feet away watching a 60" SD Pioneer, to 8 feet away watching my 42" HDTV.
I'm happy, altho the increase in picture quality of the HDTV did drive me to
get new glasses. LOL.

Deke

 

Our older projection television is looking visibly yellow. Sometimes it
fixes itself and then returns to yellow.

Is this a gun problem or a chip on the motherboard that's easily fixed?
It's an older Magnavox 52". I'm retired and really can't afford a new tv.

Thanks.

 

[N_Cook]

<ray@bobnet.us> wrote in message news:h8pe0r$6qh$3@Kil-nws-1.UCIS.Dal.Ca...

Our older projection television is looking visibly yellow. Sometimes it
fixes itself and then returns to yellow.

Is this a gun problem or a chip on the motherboard that's easily fixed?
It's an older Magnavox 52". I'm retired and really can't afford a new tv.

Thanks.

Always same shade of yellow ?, jumps from good/bad/good or drifts between
states ?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

 

From: "N_Cook" <diverse@tcp.co.uk
ray@bobnet.us> wrote in message [5] news:h8pe0r$6qh$3@Kil-nws-1.UCIS.Dal.Ca...
Our older projection television is looking visibly yellow. Sometimes it
fixes itself and then returns to yellow.
Is this a gun problem or a chip on the motherboard that's easily fixed?
It's an older Magnavox 52". I'm retired and really can't afford a new tv.

Always same shade of yellow ?, jumps from good/bad/good or drifts between
states ?

It jumps from good/bad/good but is staying more bad now so it may be
getting worse. Color adjustments aren't helping, unfortunately, as well
as different sources ie... dvd, vcr, cable. Whatever it is, it's after
the source inputs. It's a three gun rear projection unit (quite large)
and has always worked well, up until now. We bought it in 1991 so it's 18
years old. My crappy old pension doesn't allow me to replace it so I hope
a fix isn't too costly, otherwise we'll have to watch yellow programming
from now on.

Thanks.

 

[Geoffrey S. Mendelson]

ray@bobnet.us wrote:

It jumps from good/bad/good but is staying more bad now so it may be
getting worse. Color adjustments aren't helping, unfortunately, as well
as different sources ie... dvd, vcr, cable. Whatever it is, it's after
the source inputs. It's a three gun rear projection unit (quite large)
and has always worked well, up until now. We bought it in 1991 so it's 18
years old. My crappy old pension doesn't allow me to replace it so I hope
a fix isn't too costly, otherwise we'll have to watch yellow programming
from now on.

Move the speakers or other electronic device you just put on top or next to it.

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel gsm@mendelson.com N3OWJ/4X1GM

 

[AZ Nomad]

On Wed, 16 Sep 2009 01:11:55 +0000 (UTC), ray@bobnet.us <ray@bobnet.us> wrote:

Our older projection television is looking visibly yellow. Sometimes it
fixes itself and then returns to yellow.

yellow is red plus green. Blue is weak or cutting out.
http://en.wikipedia.org/wiki/Additive_color

 

From: "Geoffrey S. Mendelson" <gsm@mendelson.com
Move the speakers or other electronic device you just put on top or next to it.

The vcr and dvd have been on it for at least five years and the one lone
speaker behind it has been there since we bought it in 1991 (the other
speaker sits across the room behind the stereo stand). Would these
affect it now, after all these years?

 

[whit3rd]

On Sep 16, 8:06 pm, AZ Nomad <aznoma...@PremoveOBthisOX.COM> wrote:

On Wed, 16 Sep 2009 01:11:55 +0000 (UTC), r...@bobnet.us <r...@bobnet.us> wrote:
Our older projection television is looking visibly yellow. Sometimes it
fixes itself and then returns to yellow.

yellow is red plus green.  Blue is weak or cutting out.http://en.wikipedia.org/wiki/Additive_color

Yep, this is right. Look inside the projector unit: is this a three-
CRT type,
with a red, green, blue trio of tubes? The solder joints at/near the
connectors to the base (the narrow end of the neck) of the blue tube,
and at any power driver transistors on the associated circuit board,
are
the most likely culprits. Second thing to check is adjustment pots
(if one is dirty, moving it a little back and forth will clear up the
problem).

 

[Meat Plow]

On Wed, 16 Sep 2009 01:11:55 +0000 (UTC), ray@bobnet.uswrote:

Is this a gun problem or a chip on the motherboard that's easily fixed?

Oh boy!

 

[Deke]

<ray@bobnet.us> wrote in message news:h8pe0r$6qh$3@Kil-nws-1.UCIS.Dal.Ca...

Our older projection television is looking visibly yellow. Sometimes it
fixes itself and then returns to yellow.

Is this a gun problem or a chip on the motherboard that's easily fixed?
It's an older Magnavox 52". I'm retired and really can't afford a new tv.

Thanks.

If the TV is "fixing" itself, and the problem comes and goes, I'd say you
have a bad solder joint,
or connector, or dirty internal control. This will require the services of
a repair shop to track it down, but it is fixable. On the other hand, a new
LCD TV wont cost much more than the
repair, and the hassle of getting it to the shop and back home.
And since the TV is 18 years old, if you get it fixed after hauling it to
the shop and back home, whats going to fail next? And the bill for the
current fault will be considerable.
If it were me, (and it was a year ago..failing TV, low income, elderly), I
applied for and got a Wal-Mart credit card with an $800 limits. On the day
after Thanksgiving (Black Friday), I bought a 42" LCD TV from wallyworld,
$700.00, no interest if paid off within 18 months. I'm making payments (its
almost paid off within a year) and enjoying my new HD TV.
42" LCD HDTVs are even cheaper now, almost a year later.

Your TV is repairable, but get some estimates, and explore ALL your options.
If you choose the repair option, set spending limits before any work is
done.

Deke

 

Thank you so much for all your comments and replies. I will try to get the
set repaired and, at least, have something to go on.

I know the newer sets are getting cheaper but my 4x3 52" set seems so nice
and large (screen-wise) and the 52" 16x9 LCDs look so tiny (almost like a
26" set) in comparison. The 16x9 ratio really sucks down on the viewing
size of the screen, doesn't it. The numbers may be the same but the visual
aspect is so different. It looks like I would need a 100" LCD to get a
similar size picture as my old set. I like the 4x3 aspect ratio better,
but I guess that shows my age (70+).

Thanks again, everyone. Ray

 

[Meat Plow]

On Thu, 17 Sep 2009 20:56:16 +0000 (UTC), ray@bobnet.uswrote:

Thank you so much for all your comments and replies. I will try to get the
set repaired and, at least, have something to go on.

I know the newer sets are getting cheaper but my 4x3 52" set seems so nice
and large (screen-wise) and the 52" 16x9 LCDs look so tiny (almost like a
26" set) in comparison. The 16x9 ratio really sucks down on the viewing
size of the screen, doesn't it. The numbers may be the same but the visual
aspect is so different. It looks like I would need a 100" LCD to get a
similar size picture as my old set. I like the 4x3 aspect ratio better,
but I guess that shows my age (70+).

Thanks again, everyone. Ray

Move your Lazy Boy closer to the set.

 

[Bob Larter]

ray@bobnet.us wrote:

From: "N_Cook" <diverse@tcp.co.uk
ray@bobnet.us> wrote in message [5] news:h8pe0r$6qh$3@Kil-nws-1.UCIS.Dal.Ca...
Our older projection television is looking visibly yellow. Sometimes it
fixes itself and then returns to yellow.
Is this a gun problem or a chip on the motherboard that's easily fixed?
It's an older Magnavox 52". I'm retired and really can't afford a new tv.
Always same shade of yellow ?, jumps from good/bad/good or drifts between
states ?

It jumps from good/bad/good but is staying more bad now so it may be
getting worse. Color adjustments aren't helping, unfortunately, as well
as different sources ie... dvd, vcr, cable. Whatever it is, it's after
the source inputs. It's a three gun rear projection unit (quite large)
and has always worked well, up until now. We bought it in 1991 so it's 18
years old. My crappy old pension doesn't allow me to replace it so I hope
a fix isn't too costly, otherwise we'll have to watch yellow programming
from now on.

The blue signal is obviously dropping out intermittantly. Do the usual
checking for dry joints, & fix any you find. Your odds of fixing it that
way are fairly good.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------