Toshiba TV29C90 problem; Image fades to black...

Look for a large diode, & high voltage capacitor close to the
deflection yoke plug.
One, or both parts may be bad. Dani.



Ken G. wrote:
Tv is not right here to get model number

It is an 05 ...27 inch standard size crt set . The picture is shrunk in
on both sides a bit like an hour glass . The bowed in portion does not
move . Is this a common problem on these ?

Thanks
 
<taboggs65@earthlink.net> wrote in message
news:1164984620.187648.97690@79g2000cws.googlegroups.com...

I am looking for a users manual for the Pro99. If you have one, or know
where I can get one, please let me know. I can't figure out how to use
the PIP. Could you help me on this?
You have another source connected, like a VCR?
 
"Arfa Daily" <arfa.daily@ntlworld.com> wrote in message
news:hRSbh.829$_74.11@newsfe1-win.ntli.net...

It is ridiculous, considering the crying of all the green eco-warriors now
about electronics going to landfill, that Sony can / will not supply such
a simple item. There is no excuse for not stocking it, even if they buy
that deck mech in. I've done a lot of them within warranty period, so a
whole new deck is supplied. I used to keep them in the fond hope that
something else on there would become useful in the future, but now I just
bin them.
The really sad thing is that somewhere in China there is probably a guy with
5,000 of these who wonders if they're worth keeping or what to do with them!
 
Ken G. wrote:

Tv is not right here to get model number

It is an 05 ...27 inch standard size crt set . The picture is shrunk in
on both sides a bit like an hour glass . The bowed in portion does not
move . Is this a common problem on these ?

Thanks

if it is the model im thinking of YES common you will find a good size
coil near your flyback cooked replace it and the pin amp transistor
 
Henry Kolesnik wrote:
Talk to some of the larger retailers that take them in on trade and theen
they go to the dumpster..
I've seen many in Tulsa and even salvaged a few lense!

jakeman21@gmail.com> wrote in message
news:1164564742.174497.302780@45g2000cws.googlegroups.com...
Hi guys,
I am having trouble finding a replacement mirror for a Sony model
number KP-46C36 rear projection tv. Can somebody help me with this. Can
I go to a local glass shop and get a mirror cut, or does anyone have
anywhere where I can get a mirror. Any Suggestions would be
appreciated. Thanks

The only problem i am having is finding the dimensions of the mirror.
How can I do this? Does anyone have one, if so can they give me the
dimensions of the mirror? Any suggestions would be appreciated.
 
jakeman21@gmail.com wrote:
Henry Kolesnik wrote:
Talk to some of the larger retailers that take them in on trade and theen
they go to the dumpster..
I've seen many in Tulsa and even salvaged a few lense!

jakeman21@gmail.com> wrote in message
news:1164564742.174497.302780@45g2000cws.googlegroups.com...
Hi guys,
I am having trouble finding a replacement mirror for a Sony model
number KP-46C36 rear projection tv. Can somebody help me with this. Can
I go to a local glass shop and get a mirror cut, or does anyone have
anywhere where I can get a mirror. Any Suggestions would be
appreciated. Thanks
The only problem i am having is finding the dimensions of the mirror.
How can I do this? Does anyone have one, if so can they give me the
dimensions of the mirror? Any suggestions would be appreciated.


Measure the hole?

jak
 
ved_dhuru@hotmail.com ha escrito:

Hi,

My PC went dead (no display, but the CPU fan spins). Looking at this, I
naturally suspected the motherboard, but then I found the system works
fine with another poer supply.

Funny thing is, the defective(?) power supply seems to give all the
voltages all right, but just doesnt start up the system.

Could this be a 'power good' signal issue? If it is can it be tested?

Another pointer: earlier, the CPU fan would initialise only after
pressing the soft-on power supply switch on the mobo. Now, it starts
the moment the system is powered up. On the other hand, if no load is
connected to the PS, it seemingly behaves exactly as it should; off
till soft switch pressed (green wire connected to ground).

Before buying another supply, I'm wondering if there is anybody has
seen this specific problem, and managed to fix it?

Thanks and Regards,

Anand
I don´t understand your question. You already found that your computer
works OK with a different PSU, just replace it and be happy.
 
Without a 3.5 digit multimeter, then you don't know if voltages are
OK. Important are voltages on any one of each purple, red, orange, and
yellow wires that should exceed 3.23, 4.87, and 11.7 volts. What are
(and post) your voltages?

Handshaking involves green and gray wires. Voltage on green wire
should exceed 2.0 volts before switch is pressed and drop to less than
0.8 when switch is pressed. Gray (power good) should exceed 2.4 volts
within seconds after a switch press.

If Power Good does not remain stable, then meter should identify
which red, orange, or yellow wire voltage is going defective first.

None of the above voltages can be confirmed without being loaded by
the computer and without a digital meter or something equivalent (and
more expensive). These tests are best performed when computer is
accessing all peripherals (multitasking).

ved_dhuru@hotmail.com wrote:
...
My PC went dead (no display, but the CPU fan spins). Looking at this, I
naturally suspected the motherboard, but then I found the system works
fine with another poer supply.

Funny thing is, the defective(?) power supply seems to give all the
voltages all right, but just doesnt start up the system.

Could this be a 'power good' signal issue? If it is can it be tested?

Another pointer: earlier, the CPU fan would initialise only after
pressing the soft-on power supply switch on the mobo. Now, it starts
the moment the system is powered up. On the other hand, if no load is
connected to the PS, it seemingly behaves exactly as it should; off
till soft switch pressed (green wire connected to ground).

Before buying another supply, I'm wondering if there is anybody has
seen this specific problem, and managed to fix it?
 
ved_dhuru@hotmail.com wrote:

Hi,

My PC went dead (no display, but the CPU fan spins). Looking at this,
I naturally suspected the motherboard, but then I found the system
works fine with another poer supply.

Funny thing is, the defective(?) power supply seems to give all the
voltages all right, but just doesnt start up the system.

Could this be a 'power good' signal issue? If it is can it be tested?

Another pointer: earlier, the CPU fan would initialise only after
pressing the soft-on power supply switch on the mobo. Now, it starts
the moment the system is powered up. On the other hand, if no load is
connected to the PS, it seemingly behaves exactly as it should; off
till soft switch pressed (green wire connected to ground).

Before buying another supply, I'm wondering if there is anybody has
seen this specific problem, and managed to fix it?

Thanks and Regards,

Anand
Just replace the PSU and quit worrying about it. PSU die and go bad
regularly. Be thankful it didn't go bang and take out the mainboard
along with other stuff !

--
Baron:
 
There is probably a build-up of carbonized food on the back side of the
plastic plate. Do as the previous poster said. You may or may not be
able to clean the plastic sufficiently to put it back. The potential
for arcing has always been there, it is just that the food build-up
finallly broke down under the high fields that occur when the oven
cavity is lightly loaded. That is why you are always cautioned not to
run the microwave under no-load conditions which is about what you are
doing when you just pout loates in there. You can still warm plates,
just put some water in a container in the microwave at the same time.
The water will absorb much of the energy and it will take you longer to
heat the plates. Why not just run them under hot water for a few
seconds?

H. R. (Bob) Hofmann


ian field wrote:
"eno@pdxconnect.com" <groups@pdxconnect.com> wrote in message
news:1165180535.815225.147500@73g2000cwn.googlegroups.com...
Our 5 year old Kenmore microwave has run perfectly with no abuse, no
metal used while cooking, etc. We have also used it to warm our plates,
and typically we warm one, two, or three dinner plates for between 1
and 2 minutes total. They always emerge nicely warmed, not hot but
just right. The plates are similar to what we'd call stoneware but not
as dense, perhaps some sort
of clay substance made by Pfaltzgraff. This shows the exact plate but
not the material, at http://www.pfaltzgraff.com/ca/13937.htm .

We have warmed plates in it for most of the 5 years since we discovered
this seems to work quite well. Today, while warming two plates, we got
a strong arc after only a second or two, which upon subsequent test
seems to occur behind the flexible white plastic square on the right
side
of the cavity (assume this is the magnetron horn?)

We shut it off immediately and then experimented further; it appears to
still function, warming a glass of water normally, warming a container
of rice normally, etc. However, placing the plates back in causes an
almost immediate arc.

So, what's changed? Have the plates somehow become more/less load now
(unlikely; we tried two other plates as well with the same result.)

I'm guessing maybe a buildup of grease or residue in the magnetron area
may have changed it's parameters somehow, to the extent that it's no
longer 'happy' being asked to warm plates.

Ideas? (Other than "don't do that" please...)


Just remove the plastic bit, but make sure not to put food in there that can
"burst" and splatter into the waveguide.
 
I think you nailed it, Bob... there were a couple of blobs of stuff on
the backside of the shield; easy enough to clean up with some steel
wool and then I remounted on the reverse so the waveguide shoots
through a different area of the material. Seems to clear up the
problem.
Running hot water might be an option but not nearly as convenient as
just popping them in the micro.

Thanks.
 
<tombates@city-net.com> wrote in message
news:1165197626.005099.73660@j72g2000cwa.googlegroups.com...

I hope this is the correct place to ask this question. I notice that
some new stereos come with a USB connection. I am trying to figure out
the purpose of it. I have visited a number of electronic stores and
asked, but I keep getting different answers. Is the USB to connect a
MP3 player, so you can play the songs from your MP3 player on your
stereo?
Presumably - possibly both ways?
 
eno@pdxconnect.com wrote:
I think you nailed it, Bob... there were a couple of blobs of stuff on
the backside of the shield; easy enough to clean up with some steel
wool and then I remounted on the reverse so the waveguide shoots
through a different area of the material. Seems to clear up the
problem.
Running hot water might be an option but not nearly as convenient as
just popping them in the micro.

Thanks.

If you checked your manual, you would find that shield is NOT to be
cleaned with anything abrasive. It is made of a compound that is part
of the distribution of the microwaves.
My first unit manual said that (early 80's) and the one I bought a week
ago also said that as well.
My first unit was a Sharp, ($1,200) and included a 9 hour cooking course
with it. The very first night, they had a Sharp tech there that said
any dish that contained clay was not to be used as there is always trace
amounts of metals in clay. He also said that if any container that got
hot in the machine when there was no food/water, should not be used.
Why don't you email the manufacturer of the plates and ask if they are
microwave safe. I'll lay odds the answer is NO.
Regards
Lee in Toronto
 
tombates@city-net.com wrote:
I hope this is the correct place to ask this question. I notice that
some new stereos come with a USB connection. I am trying to figure out
the purpose of it. I have visited a number of electronic stores and
asked, but I keep getting different answers. Is the USB to connect a
MP3 player, so you can play the songs from your MP3 player on your
stereo? Is the USB to connect your computer to your stereo, so you can
use the speakers on your stereo for music being played on your
computer? This would mean both would need to be in the same room which
would not make any sense, but maybe so. Is the USB used to connect a
flash or thumbdrive which contains MP3 files which you can then play on
your stereo? This is the reason I would be interested. Anyone have any
idea what is the real answer? I probably should take my flash drive
next time, and plug it in the see if it works.

Thanks

Tom

Why don't you ask for the manual and read it?
Regards
Lee
 
<tombates@city-net.com> wrote in message
news:1165197626.005099.73660@j72g2000cwa.googlegroups.com...
I hope this is the correct place to ask this question. I notice that
some new stereos come with a USB connection. I am trying to figure out
the purpose of it. I have visited a number of electronic stores and
asked, but I keep getting different answers. Is the USB to connect a
MP3 player, so you can play the songs from your MP3 player on your
stereo? Is the USB to connect your computer to your stereo, so you can
use the speakers on your stereo for music being played on your
computer? This would mean both would need to be in the same room which
would not make any sense, but maybe so. Is the USB used to connect a
flash or thumbdrive which contains MP3 files which you can then play on
your stereo? This is the reason I would be interested. Anyone have any
idea what is the real answer? I probably should take my flash drive
next time, and plug it in the see if it works.

Thanks

Tom
I recently did a course at Yamaha on their latest series of AV amps, which
have a USB port on them, and we had both music from a flash drive and
pictures from a digital camera, via the amp's HDMI up convert capabilities,
demonstrated to us. Exactly what capabilities any particular hifi is going
to have with respect to its USB ports, is going to be mainly a case of what
software functionality the designer has put in. The Yammies for instance,
have a very comprehensive menu system, which appears on a TV connected
through the amp. Remember that a USB port is just a piece of hardware. It
does nothing without appropriate software to manage the data that it is
handling.

I would also suggest that the USB port on most of the hifi's that now have
one, can probably be used to extract audio to feed a multi-media wireless
streamer. As others here have suggested, a look at the user manual might be
helpful, but if the Yamaha ones are anything to go by, you will probably
need to get to the shop early in the morning, and take a picnic lunch with
you ! In this instance, you might find that "Google is Your Friend", and
putting in the model number of a unit that you are interested in, will bring
up a features list, or magazine review, telling you what you want to know.

Arfa
 
eno@pdxconnect.com wrote:

Our 5 year old Kenmore microwave has run perfectly with no abuse, no
metal used while cooking, etc. We have also used it to warm our plates,
and typically we warm one, two, or three dinner plates for between 1
and 2 minutes total. They always emerge nicely warmed, not hot but
just right. The plates are similar to what we'd call stoneware but not
as dense, perhaps some sort
of clay substance made by Pfaltzgraff. This shows the exact plate but
not the material, at http://www.pfaltzgraff.com/ca/13937.htm .

We have warmed plates in it for most of the 5 years since we discovered
this seems to work quite well. Today, while warming two plates, we got
a strong arc after only a second or two, which upon subsequent test
seems to occur behind the flexible white plastic square on the right
side
of the cavity (assume this is the magnetron horn?)

We shut it off immediately and then experimented further; it appears to
still function, warming a glass of water normally, warming a container
of rice normally, etc. However, placing the plates back in causes an
almost immediate arc.

So, what's changed? Have the plates somehow become more/less load now
(unlikely; we tried two other plates as well with the same result.)

I'm guessing maybe a buildup of grease or residue in the magnetron area
may have changed it's parameters somehow, to the extent that it's no
longer 'happy' being asked to warm plates.

Ideas? (Other than "don't do that" please...)
dont do that, put a cup of water on the plates when you nuke them.

Keep the plastic bit clean to prevent this recurring.

Dont run the machine with the plastic waveguide cover removed, as food
splatters will enter the waveguide, this will short out, and cleaning
it out will then be difficult or impossible.


NT
 
Lee <glog@sympatico.ca> writes:

eno@pdxconnect.com wrote:
I think you nailed it, Bob... there were a couple of blobs of stuff on
the backside of the shield; easy enough to clean up with some steel
wool and then I remounted on the reverse so the waveguide shoots
through a different area of the material. Seems to clear up the
problem.
Running hot water might be an option but not nearly as convenient as
just popping them in the micro.

Thanks.

If you checked your manual, you would find that shield is NOT to be
cleaned with anything abrasive. It is made of a compound that is part
of the distribution of the microwaves.
My first unit manual said that (early 80's) and the one I bought a week
ago also said that as well.
They don't want you to destroy it but it is just a piece of plastic that
is transparent to microwaves.

My first unit was a Sharp, ($1,200) and included a 9 hour cooking course
with it. The very first night, they had a Sharp tech there that said
any dish that contained clay was not to be used as there is always trace
amounts of metals in clay. He also said that if any container that got
hot in the machine when there was no food/water, should not be used.
Why don't you email the manufacturer of the plates and ask if they are
microwave safe. I'll lay odds the answer is NO.
He's been doing it for years without incident. So, something else has
changed. As long as the plates absorb some of the energy, it won't hurt
the oven. That's the same thing a glass of water does.

I'd guess there is some burnt on crud which is causing the arcing.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.
 
"Dan_Musicant" <dmusicant@pacbell.net> wrote in message
news:ea17n255ef415g4b6p005hsmvlpola21qr@4ax.com...
One of my two S-VHS recorders has this problem, an RCA VR695HF. I bought
it about 1990. It was one of the earliest S-VHS decks. I also have the
earliest one, a JVC JRS-7000U. Both decks have been repaired a few times
- the heads have been replaced.

The RCA deck has had a problem for a while. It doesn't always eject the
tape. I press the eject button and I hear the mechanism kick in but the
tape doesn't eject. Until a couple weeks ago, it usually (not always!!)
ejected on the second press (the same sound happened both presses, but
the second time the tape came out). A couple weeks ago I had to press it
40-50 times before the tape finally came out. Annoying, especially
because the tape was due back at the library that day.

Some months ago I took the cover off and looked for something to adjust
or lubricate but whatever I did didn't help (cleaned, a bit of
lubrication here and there, blow compressed air, etc.). Using a
different tape has no evident effect.

Any ideas what I might look for in troubleshooting and fixing this
problem? I have a book on repairing VCR's, but its flowcharts haven't
helped.

Thanks!

Dan

Check loading belt if it has one.
 
"nucleus" <rose122550@yahoo.com> wrote in message
news:1165193929.673402.205150@79g2000cws.googlegroups.com...
does your operating manual suggest using a microwave oven to heat
plates?

a microwave oven is designed to heat items containing water. a water
molecule is composed of a single atom of oxygen with two atoms of
hydrogen attached at a specific angle to the oxygen atom. the
frequency
of a microwave oven is designed to cause the hydrogen atoms to
vibrate, causing friction with adjacent water molecules, thereby
generating heat.

clays contain minerals rich in metal oxides. the metal in your plates
possibly has been marginal in the past and due to usage, the addition
of molecular metal particles from flatware may have caused the change.


eno@pdxconnect.com wrote:
Our 5 year old Kenmore microwave has run perfectly with no abuse, no
metal used while cooking, etc. We have also used it to warm our plates,
and typically we warm one, two, or three dinner plates for between 1
and 2 minutes total. They always emerge nicely warmed, not hot but
just right. The plates are similar to what we'd call stoneware but not
as dense, perhaps some sort
of clay substance made by Pfaltzgraff. This shows the exact plate but
not the material, at http://www.pfaltzgraff.com/ca/13937.htm .

We have warmed plates in it for most of the 5 years since we discovered
this seems to work quite well. Today, while warming two plates, we got
a strong arc after only a second or two, which upon subsequent test
seems to occur behind the flexible white plastic square on the right
side
of the cavity (assume this is the magnetron horn?)

We shut it off immediately and then experimented further; it appears to
still function, warming a glass of water normally, warming a container
of rice normally, etc. However, placing the plates back in causes an
almost immediate arc.

So, what's changed? Have the plates somehow become more/less load now
(unlikely; we tried two other plates as well with the same result.)

I'm guessing maybe a buildup of grease or residue in the magnetron area
may have changed it's parameters somehow, to the extent that it's no
longer 'happy' being asked to warm plates.

Ideas? (Other than "don't do that" please...)
You should see the items Braniac (science abuse) TV show puts in the
microwave - on average about half the items result in the steel casing being
unfolded back to sheets of steel! Some of the less destructive items at
least provide an entertaining light show.
 

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