Toshiba TV29C90 problem; Image fades to black...

Sony Beta format was immune to Macrovision,IIRC.
That's a myth that I've seen proven untrue countless times.

AAMOF, I've had Beta machines, including Sonys, which reacted to MacroVision
with video that dimmed and brightened repeatedly. - Reinhart
 
excellant, thank you very much. Ill have a look to see if I can locate
the coil in question. Im sure Ill have many more questions in the
future...ill let you know what I find.
 
"Adam" <kinema@gmail.com> wrote in message
news:j%Ywd.2656$9j5.2486@newsread3.news.pas.earthlink.net...
| Not shielding that's magnetic but rather shielding to block those
| annoying rotating magnetic field radiating from the neighbor's apartment.
....
| What materials would not only work but wouldn't require me to sell any
| appendages?

I'd be inclined to try sheets of aluminium - say 4 ft x 4 ft sections of
20#. They aren't expensive and might help as the eddy currents tend to
reduce the magnetic effects. Other methods become more difficult to use - or
pay for.

BTW, a different monitor might work better.

N
 
"Jim Yanik" <jyanik@abuse.gov.> wrote in message
news:Xns95C3740CFEA69jyanikkuanet@129.250.170.84...

| Sony Beta format was immune to Macrovision,IIRC.

RCA CED had no Macrovision AFAIK!

N
 
"LASERandDVDfan" <laseranddvdfan@aol.com> wrote in message
news:20041218122846.23218.00002222@mb-m03.aol.com...
| >Sony Beta format was immune to Macrovision,IIRC.
|
| That's a myth that I've seen proven untrue countless times.
|
| AAMOF, I've had Beta machines, including Sonys, which reacted to
MacroVision
| with video that dimmed and brightened repeatedly. - Reinhart

Well, strip it out with one of those $40 boxes. Works fine.

N
 
NSM wrote:
"Jim Yanik" <jyanik@abuse.gov.> wrote in message
news:Xns95C3740CFEA69jyanikkuanet@129.250.170.84...

| Sony Beta format was immune to Macrovision,IIRC.

RCA CED had no Macrovision AFAIK!

N
Possibly because it had no customers.
gg
 
<stratus46@yahoo.com> wrote in message
news:1103398929.175573.159710@c13g2000cwb.googlegroups.com...
|
| NSM wrote:
| > "Jim Yanik" <jyanik@abuse.gov.> wrote in message
| > news:Xns95C3740CFEA69jyanikkuanet@129.250.170.84...
| >
| > | Sony Beta format was immune to Macrovision,IIRC.
| >
| > RCA CED had no Macrovision AFAIK!
| >
| > N
| Possibly because it had no customers.
| gg

Incredibly wrong. Try a search on eBay.

N
 
"bg" <bg@nospam.com> wrote in message news:cq23dk$2c0$1@news.xmission.com...
| There is no such thing as a magnetic insulator. Magnetic shielding is
highly
| permeable which gives the magnetism an easier path to follow. Copper,
| aluminum, etc, non ferrous materials do not work.

Untrue. The eddy currents buck the magnetic field - imperfectly, but at a
much lower cost than mumetal. A sandwich of alternate layers of aluminum and
steel would probably work better, but the OP wanted cheap and easy things to
try.

N
 
ok...ive noticed another thing about the TV that i didnt notice before.
There are interferance lines in the picture that are linked to the
audio of that scene. I didnt npcie it beofre casue i routed my audio
from my DVD through my reciever, but when i hooked it back up i figured
id see if there was any audio inerferance, and there was. Is this still
a symptom of this coil being mis-adjusted?
 
"Sam Goldwasser" <sam@saul.cis.upenn.edu> wrote in message
news:6w7jnfjgbx.fsf@saul.cis.upenn.edu...
| The only technically easy way ... Tin foil won't do anything except make
| your monitor look strange.

If you wear it on your head you REALLY look strange!

N
 
"James Sweet" <jamessweet@hotmail.com> wrote in message
news:pH4xd.265$_62.212@trnddc01...

| Certainly some people bought them, in fact there were a couple arcade
games
| that used them (rather than the more common Laserdisc games) but from what
| I've read, the discs were played with a stylus that badly wore the areas
| used for the attract mode.
|
| Still in the grand scheme of things they were a flop, compared to VCR's
and
| optical Laserdisc they effectively had "no" customers.

I have two players, the stereo adaptor, and over 100 movies. When movies on
VHS were running around $80 each, I was able to buy then from a mail order
dealer for around $7 each and got one free for every two I bought.

I'd sell them on eBay but the weight makes shipping a bitch.

N
 
I remember those too. I used to adjust them and I seem to remember
blue and red coil forms. Take an alignment tool to the one marked disc
first. I don't remember if there was a top and bottom (primary and
secondary) to this coil. If so your tool will have to be able to slide
in to the top make that adjustment and then slide down to the bottom
section. Put a piece of tape on the tool like a flag. Note the position
of the flag before turning the tool so that you can return it to its
starting position if the adjustment does not change the audio. As I
recall just a slight twist was all it took to clear it up. Anything
related to "disc or 4.5mhz) is in the right neighborhood. Good luck,
Lenny Stein, Barlen Electronics.
 
"CJT" <abujlehc@prodigy.net> wrote in message
news:41C4DB00.8090008@prodigy.net...

| An LCD monitor would probably be cheaper and more effective than
| shielding.
|
| But I rather doubt the magnetic field from an electric heater is that
| strong. Are you sure you're not having a brownout +/-?

Maybe he has a neighbour with a CB set and a 2 KW linear?

N
 
Did someone attempt to put System X in this machine? But then it should
power up but no video as here:

http://forums.macosxhints.com/archive/index.php/t-11411.html

These guys put an ATX power supply in one:
http://www.radiomods.co.nz/imactoatxconversion/

This is from the iMac diagnostic:
"In a No Power situation, first check for +5 V trickle power at J9
(refer to “Testing J9 for +5 V Trickle Power on the Logic
Board”), then check the DCO (Down Converter On) voltage on the
logic board at capacitor C10 (see figure below)"
It goes on .

Richard
 
Did someone attempt to put System X in this machine? But then it should
power up but no video as here:

http://forums.macosxhints.com/archive/index.php/t-11411.html

These guys put an ATX power supply in one:
http://www.radiomods.co.nz/imactoatxconversion/

This is from the iMac diagnostic:
"In a No Power situation, first check for +5 V trickle power at J9
(refer to “Testing J9 for +5 V Trickle Power on the Logic
Board”), then check the DCO (Down Converter On) voltage on the
logic board at capacitor C10 (see figure below)"
It goes on .

Richard
 
"Damian Menscher" <menscher+usenet@uiuc.edu> wrote in message
news:cq2t33$vl6$1@news.ks.uiuc.edu...

| Thanks to you and everyone else for the advice. I'll certainly think
| more carefully about this (and probably just use a real HV probe).

If you ever have any doubts about the power of electricity, watch the
episode of "The Beverly Hillbillies" where the bear eats granny's love
letter and Jethro comes up with a plan to X-ray the bear.

N
 
"NSM" <nowrite@to.me> wrote in message news:F37xd.5807$KO5.1825@clgrps13...
"Damian Menscher" <menscher+usenet@uiuc.edu> wrote in message
news:cq2t33$vl6$1@news.ks.uiuc.edu...

| Thanks to you and everyone else for the advice. I'll certainly think
| more carefully about this (and probably just use a real HV probe).

If you ever have any doubts about the power of electricity, watch the
episode of "The Beverly Hillbillies" where the bear eats granny's love
letter and Jethro comes up with a plan to X-ray the bear.

N
I would hardly think Beverly Hillbillies to be a good source of information
on electricity safety, anything in a TV show like that is pure fabrication,
it may coincide with real life but no more likely than what any random
person would assume to be true.
 
thanks, ill do that this week. Will adjusting these coils help with the
audio interfering with the picture? also how do i adjust the level that
the color cuts off at. Just over the last month the color cuts off when
viewing VHS tapes, TV and DVD are fine...
Any ideas?

Thanks so much for the help so far guys!!

Keith
 
"TEX" <TEX@Nospam.com> wrote in message news:41c501b8$1@news.iconz.co.nz...

| Anyway when I powered it up next, I found that (what it looks like) the
| posistor has blown and spat all over the case. I suspect it is a
| posistor as it runs in series with the fuse and is close to the degauss
| coil. It is actually soldered on a set of pins exactly like the ones you
| would normally plug the degauss coil.
|
| Anyway normally I understand you can just leave the posistor out, but
| since this is running in series with the fuse, without it, the rest of
| the unti will not power up.
|
| Is there anyway I can bypass it (just link the gap?, or link with with a
| fuse?) so I can be sure it was this that was causing the fault in the
| first place?

If it is a posistor and is in series with the degauss coil, bypassing it
will leave the coil running continuously. This is NOT a good thing. You
could replace it with a push button temporarily.

N
 
"James Sweet" <jamessweet@hotmail.com> wrote in message
news:Ll7xd.258$h.247@trnddc04...
|
| "NSM" <nowrite@to.me> wrote in message
news:F37xd.5807$KO5.1825@clgrps13...

| > If you ever have any doubts about the power of electricity, watch the
| > episode of "The Beverly Hillbillies" where the bear eats granny's love
| > letter and Jethro comes up with a plan to X-ray the bear.

| I would hardly think Beverly Hillbillies to be a good source of
information
| on electricity safety, anything in a TV show like that is pure
fabrication,
| it may coincide with real life but no more likely than what any random
| person would assume to be true.

After you see Jethro stick his tongue in the electric lamp socket (to show
what the "dumb old bear" will do) you'll understand why the prospect of the
electric chair fills him with dread.

N
 

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