Toshiba TV29C90 problem; Image fades to black...

[JVC Dude]

~If it goes purple, do you mean it loses the green gun?
I would suspect a faulty tube.- perhaps the heater going O/c or an internal
short developing as it warms up.
Here in the UK we had many tube problems with the 29" sets, although ours
were made in France...by Philips !

AW

"Lanzar" <christian.loo@netikka.fi> wrote in message
news:677fafc5.0505310651.18cc9c96@posting.google.com...

I have now checked for any cold solder, but everything looks fine. The
picture is also blue tinted the first seconds when powered up. Then it
becomes normal, and after a while it starts fluctuating to purple, and
finaly its all purple tinted. Another problem is that when i push the
volume+ on remote, then volume goes directly to max.

 

[Darmok]

On 31 May 2005 13:53:45 -0700, kellrobinson@billburg.com wrote:

I need a female N bulkead connector, the kind with a flange with four
holes. I don't want to pay $7 shipping on a $3 item. Is there a place
in New York City where I can buy them?

Find a store that stocks "Ham Radio" supplies ... there's bound to be
one ... even in NYC.

 

[NSM]

"Scott Hedrick" <dinehnm@yahoo.net> wrote in message
news:%40ne.52595$J25.34853@bignews6.bellsouth.net...

"Stormin Mormon" <cayoung61-#spamblock*-@hotmail.com> wrote in message
news:l%Pme.27193$i42.21411@twister.nyroc.rr.com...
And if they are revelations, how do you know where they're coming from?
CY: An excellent question. First, all of my revelations have proven
true.
Which suggests they aren't from the Father of Lies.

What has Bill Clinton got to do with it?

Who brought Bill into this? He was talking about Dubya.


N

 

[James Sweet]

"Ron" <rcoonjr@buckeye-express.com> wrote in message
news:1117598130.769150.278210@f14g2000cwb.googlegroups.com...

I just aquired a Toshiba 43" rear projections television Model TP43H60
using chasis TAC9859. Upon plugging it in I hear the high voltage kick
in. All three tubes glow. But no picture. I removed the front panel
to reveal the control knobs for the flybacks. I toned them up a bit...
now I get a pictures with a horizontal line across. then after a few
seconds it scatters like a oval type shape. My thoughts since I repair
video game monitors for my work.. I suspected the horizonal output
transitor. Any help would be great.

If you have any picture at all then the HOT is obviously good. What do you
mean by the pic scattering? Do you have a way of measuring the HV?

 

[Stormin Mormon]

"Bobby D. Bryant" <bdbryant@mail.utexas.edu> wrote in message
news:d78tpi$607$5@geraldo.cc.utexas.edu...
On Fri, 27 May 2005, "Stormin Mormon" <cayoung61-#spamblock*-@hotmail.com>
wrote:

I, and many other LDS (Mormons) receive personal revelation.

What form do these revelations take?
CY: Usually impressions that come into my mind. Clearly, unlike my usual
more slow thought process. Sometimes I get ideas fully formed "that car
isn't going to stop for the stopsign, you must stop even though you have
right of way". That kind of thing. Sometimes it's reading scriptures, and I
can see a parallel to my own or someone else's life. While giving priesthood
blessings, I am given text, or impressions to speak for the benefit of the
person getting the blessing.


How do you know they are revelations rather than delusions?
CY: Revelations are nice and clear. Delusions are foggy and confused.


And if they are revelations, how do you know where they're coming from?
CY: An excellent question. First, all of my revelations have proven true.
Which suggests they aren't from the Father of Lies. Second, they go in the
direction of safety, and keeping the commandments of God. Which isn't the
stated goal of Satan.


--
Bobby Bryant
Austin, Texas

 

[Mebart]

Hi all,

I found this schematic on the web, and can't quite understand what the
TL081 op amp does. Obviously, it's some sort of ripple reducer, but
what does it do and how does it work?

The authors ISP returns errors with the 2 published email addresses
on the website.

The entire web page is here:

http://charliethompson.50megs.com/LowRippleHVsupply.html

Thanks,

M

 

[bigtom]

is this the model with the big heavy motor screwed to the base and has
the 4-6 wires connected to it? and some of the wires are connected to
switches mounted on the motor?
are you just after the motor wiring positions?

champion wrote:

Hey, I'm wondering if anyone can help me get my washing machine wired
up, I took my Hoover 820 in to get the pully weilded up, when the job
was done I put it back in the machine and then realised the markings I
had made for the wiring had been rubbed off, does anyone have a diagram
for the wiring system for this model washing machine, this would be
appreciated

 

[Art]

Try disconnecting the convergence yoke wires at the convergence correction
area of the deflection pwb. Pay attention as to which connector goes to
which plug. There are three, one for red, blue,and green. If you get a full
raster with video then it is probable the output ics have gone bad and need
replaced. The display will be distorted because the correction for
registration will not be present. Pay attention to the small value resistors
in that circuit also.
"James Sweet" <jamessweet@hotmail.com> wrote in message
news:Opcne.20112$Ri3.4501@trnddc09...

"Ron" <rcoonjr@buckeye-express.com> wrote in message
news:1117598130.769150.278210@f14g2000cwb.googlegroups.com...
I just aquired a Toshiba 43" rear projections television Model TP43H60
using chasis TAC9859. Upon plugging it in I hear the high voltage kick
in. All three tubes glow. But no picture. I removed the front panel
to reveal the control knobs for the flybacks. I toned them up a bit...
now I get a pictures with a horizontal line across. then after a few
seconds it scatters like a oval type shape. My thoughts since I repair
video game monitors for my work.. I suspected the horizonal output
transitor. Any help would be great.


If you have any picture at all then the HOT is obviously good. What do you
mean by the pic scattering? Do you have a way of measuring the HV?

 

[Art]

Probably in the village, Eh?? I realize the yellow book for NYC is normally
used as a weapon but this time read it under Amatuer Radio Supplies. Give
them a call, probably a local number. Eh?
"Darmok" <cooncat.spam@gmail.com> wrote in message
news:9qmp91lvebg7k54f285hdhev5mpu5vkv08@4ax.com...

On 31 May 2005 13:53:45 -0700, kellrobinson@billburg.com wrote:

I need a female N bulkead connector, the kind with a flange with four
holes. I don't want to pay $7 shipping on a $3 item. Is there a place
in New York City where I can buy them?

Find a store that stocks "Ham Radio" supplies ... there's bound to be
one ... even in NYC.

 

[Bob Parker]

The first Poptronics article was absolutely riddled with drafting
errors. Later they brought out a lot of corrections. Have you
incorporated those corrections into your meter?

Bob



"danbob5" <supplee1@earthlink.net> wrote:

I built the poptronics esr meter with a FAR circuit board. when i check a
regular cap it works as it should but when i check a electolitic it
generates about 5 to 10 % more voltage at the meter than when the probes
are touched and the meter is zeroed out. I have checked all componet
location & polarity 3 times and the voltages are good checked with meter &
O scope. any ideas?
Dan

 

[Antti Panula]

"danbob5" <supplee1@earthlink.net> wrote:

I built the poptronics esr meter with a FAR circuit board. when i check a
regular cap it works as it should but when i check a electolitic it
generates about 5 to 10 % more voltage at the meter than when the probes
are touched and the meter is zeroed out. I have checked all componet
location & polarity 3 times and the voltages are good checked with meter &
O scope. any ideas?
Dan

Please consider buying an EVB ESR meter. This piece of equipment is great. I
don't know what is your purpose of checking ceramic or polyester caps
because they almost never wear out. Regular ohm meter should be fine for
those.

http://clientes.netvisao.pt/greenpal/

Antti
OH7GLS

 

[NSM]

<Mebart> wrote in message news:jlqq91hc0p34rjm18hq1e6j895mfqlcdt8@4ax.com...

Hi all,

I found this schematic on the web, and can't quite understand what the
TL081 op amp does. Obviously, it's some sort of ripple reducer, but
what does it do and how does it work?

The authors ISP returns errors with the 2 published email addresses
on the website.

The entire web page is here:

http://charliethompson.50megs.com/LowRippleHVsupply.html

Possibly used as a gyrator?

N

 

[Jamie]

Mebart wrote:

Hi all,

I found this schematic on the web, and can't quite understand what the
TL081 op amp does. Obviously, it's some sort of ripple reducer, but
what does it do and how does it work?

The authors ISP returns errors with the 2 published email addresses
on the website.

The entire web page is here:

http://charliethompson.50megs.com/LowRippleHVsupply.html

Thanks,

M

well, personally i would add a TVS (transient Voltage Suppresser) and

maybe even a Zener to help protect that op-amp from an inrush of
voltage that would destroy the op-amp..
putting that aside.

what the op-amp is doing is simply using the inverting input signal
back to the source to cancel the effect there for, a high gain op-amp
is generally selected for this application because afterwards the
end results will be small.
this has also been noted in some doc's as an electronic/active capacitor.
personally, i wouldn't use it but that's me!

 

[Mebart]

well, personally i would add a TVS (transient Voltage Suppresser) and
maybe even a Zener to help protect that op-amp from an inrush of
voltage that would destroy the op-amp..
putting that aside.

Yes, I noticed that the high voltage was pretty close to the op amp
and that a leaky cap or a sudden application or removal of the power
might cause a problem.

Thanks for commenting.

M

 

[Allodoxaphobia]

On 1 Jun 2005 09:47:53 -0700, kellrobinson@billburg.com wrote:

Art wrote:
Probably in the village, Eh?? I realize the yellow book for NYC is normally
used as a weapon but this time read it under Amatuer Radio Supplies. Give
them a call, probably a local number. Eh?
"Darmok" <cooncat.spam@gmail.com> wrote in message
news:9qmp91lvebg7k54f285hdhev5mpu5vkv08@4ax.com...
On 31 May 2005 13:53:45 -0700, kellrobinson@billburg.com wrote:

I need a female N bulkead connector, the kind with a flange with four
holes. I don't want to pay $7 shipping on a $3 item. Is there a place
in New York City where I can buy them?

Find a store that stocks "Ham Radio" supplies ... there's bound to be
one ... even in NYC.

The problem with getting completely useless replies like "Oh, there
must be a store that sells it" and "Why don't you just look in the
Yellow Pages" is just that other people who read these postings will
get the feeling that the question has been answered, and I won't get
any meaningful responses.
Well, there are no more Amateur Radio store left in New York City,
believe it or not -- else why would I have posted? I have been a ham
for twenty years and lived in New York City just as long -- I should
know.
I would GREATLY prefer that you netizens would let my post die in
oblivion, without a single response, than get worthless replies. So
shut up. Unless you know where I can get N connectors locally.

Aren't there any local/regional web-based, or email-list-based
swaplists? It might pay to drop a WTB in one or more of'em.
Like me, I'm confidant that some ham in your area has a peanut-butter
jar full of'em.

73
Jonesy
--
| Marvin L Jones | jonz | W3DHJ | linux
| Gunnison, Colorado | @ | Jonesy | OS/2 __
| 7,703' -- 2,345m | config.com | DM68mn SK

 

[Pooh Bear]

Mebart wrote:

well, personally i would add a TVS (transient Voltage Suppresser) and
maybe even a Zener to help protect that op-amp from an inrush of
voltage that would destroy the op-amp..
putting that aside.

Yes, I noticed that the high voltage was pretty close to the op amp
and that a leaky cap or a sudden application or removal of the power
might cause a problem.

Thanks for commenting.

Clamp diodes from the relevant points to the op-amp's supply rails would
be an advisable addition.

Graham

 

[Art]

Ever hear of MCM Electronics in Ohio, or are you totally restricted to NYC.
www.mcminone.com Being an active HAM for over 20 years should have at least
intorduced you to this company> 73s (now take your QRM and stuff it!)
"Allodoxaphobia" <bit-bucket@config.com> wrote in message
news:slrnd9rvc2.1t5f.bit-bucket@shell.config.com...

On 1 Jun 2005 09:47:53 -0700, kellrobinson@billburg.com wrote:


Art wrote:
Probably in the village, Eh?? I realize the yellow book for NYC is
normally
used as a weapon but this time read it under Amatuer Radio Supplies.
Give
them a call, probably a local number. Eh?
"Darmok" <cooncat.spam@gmail.com> wrote in message
news:9qmp91lvebg7k54f285hdhev5mpu5vkv08@4ax.com...
On 31 May 2005 13:53:45 -0700, kellrobinson@billburg.com wrote:

I need a female N bulkead connector, the kind with a flange with four
holes. I don't want to pay $7 shipping on a $3 item. Is there a
place
in New York City where I can buy them?

Find a store that stocks "Ham Radio" supplies ... there's bound to be
one ... even in NYC.

The problem with getting completely useless replies like "Oh, there
must be a store that sells it" and "Why don't you just look in the
Yellow Pages" is just that other people who read these postings will
get the feeling that the question has been answered, and I won't get
any meaningful responses.
Well, there are no more Amateur Radio store left in New York City,
believe it or not -- else why would I have posted? I have been a ham
for twenty years and lived in New York City just as long -- I should
know.
I would GREATLY prefer that you netizens would let my post die in
oblivion, without a single response, than get worthless replies. So
shut up. Unless you know where I can get N connectors locally.

Aren't there any local/regional web-based, or email-list-based
swaplists? It might pay to drop a WTB in one or more of'em.
Like me, I'm confidant that some ham in your area has a peanut-butter
jar full of'em.

73
Jonesy
--
| Marvin L Jones | jonz | W3DHJ | linux
| Gunnison, Colorado | @ | Jonesy | OS/2 __
| 7,703' -- 2,345m | config.com | DM68mn SK

 

[Ken Weitzel]

nick2004@gmail.com wrote:

I just moved and in doing so my TV was damaged. The cable was ripped
out of the back and part of the TV (where you screw in the cable) came
with it.

I have pictures of the part that was damaged but I don't know what it
is or where to buy a part to replace it. Help!!

See pictures below - it's the shiny silver box with a hole in it.

http://207.54.123.12/TV_1.jpg
http://207.54.123.12/TV_2.jpg
http://207.54.123.12/TV_3.jpg
http://207.54.123.12/TV_4.jpg

Hi...

It's called an so59 or so259 - my old mine forgets which, so
someone else?

Pick one up at Radio Shack or equivalent where you live...
though seeing as the can has been ripped a little you may
need a couple of washers as well.

The red wire seen sticking out of your chassis connects to
the center terminal on the new socket; the mounting itself
provides the ground.

Take care.

Ken

 

[Tom MacIntyre]

On 1 Jun 2005 13:51:18 -0700, "b" <reverend_rogers@yahoo.com> wrote:

nick2004@gmail.com wrote:
I just moved and in doing so my TV was damaged. The cable was ripped
out of the back and part of the TV (where you screw in the cable) came
with it.

I have pictures of the part that was damaged but I don't know what it
is or where to buy a part to replace it. Help!!

See pictures below - it's the shiny silver box with a hole in it.

http://207.54.123.12/TV_1.jpg
http://207.54.123.12/TV_2.jpg
http://207.54.123.12/TV_3.jpg
http://207.54.123.12/TV_4.jpg

look at picture 2. there seems to be a metal prog/pin protruding
slightly from within the hole where the coax jack used to be.

if you are lucky, soldering a new piece of coax cable with a coax
socket on it (to plug your aerial into) may be all that is needed.
You'd solder the centre pin of the coax lead to that protrusion, and
the braid to the metal can's shielding.

And if the live chassis protection has been compromised? Maybe
unlikely given the look of this picture, but if that blocking
capacitor has shorted, you'll blow a fuse or two.

Tom

good luck, Ben

 

[Rono]

You have no vertical deflection. Bad connections, or
bad IC, these units are known for bad convergence IC's
also. Rono.