Toshiba TV29C90 problem; Image fades to black...

[NSM]

"Alan S" <loralweightandcarbs@optusnet.com.au> wrote in message
newsctg01hgtp0le5lihrt47mugmmkvbuef59@4ax.com...

On Tue, 08 Feb 2005 05:34:38 GMT, "NSM" <nowrite@to.me> wrote:

|See
|
|http://zeeb.at/oops/WomenLiveLonger1.jpg
|http://zeeb.at/oops/WomenLiveLonger2.jpg
|http://zeeb.at/oops/WomenLiveLonger3.jpg
|http://zeeb.at/oops/WomenLiveLonger4.jpg
|http://zeeb.at/oops/WomenLiveLonger5.jpg
|http://zeeb.at/oops/WomenLiveLonger6.jpg
|
|for other reasons.
|
It was a hard decision, but I think 4 was the winner. I did like 1 and
5 as close runners-up

Or, as the Kiwis say, "She'll be right, mate"!

Yes, a particularly fine collection. And we've all done one of those - once.

--
N

 

[NSM]

"M & T" <markNOSPAM@snapnpopdragon.com> wrote in message
news:68aOd.16925$qB6.12157@tornado.tampabay.rr.com...

Hi friend,

This could happen to anybody let my benefit be yours.

I was a newbie and have a boarder line genius friend !

If he's such a genius why is he a boarder? Why doesn't he get his own place?
--
N

 

[Travis Jordan]

Sam Goldwasser wrote:

Someone gave me a 256M module to try. It was recognized by the BIOS
with 384M total (which would be correct), but Windows ME just kept
rebooting.

Most PC133 memory is 168 pin 32x4. I believe you need a 144 pin module
16x8.

 

[Travis Jordan]

Travis Jordan wrote:

Most PC133 memory is 168 pin 32x4. I believe you need a 144 pin
module 16x8.

Or for 256mb, PC 133 is 64x4...when you need PC100 32x8.

 

If you record on this machine and then play it back on the SAME
machine, does that work well? If so, I'd say that the tracking is
simply off.

Nope, same behavior. Static pure as the driven snow

Try adjusting the tracking while viewing a self recorded tape. If
that doesn't seem to have any effect at all, then there must be a
problem with the tracking adjustment/control circuit.

Could a tracking problem, even a severe one, be bad enough to cause all
videotapes to display absolutely nothing but static?

Have you inspected the video heads yet?

No. What should I look for? (note: I'm an EE but not a VCR repair
tech)

 

[Time]

Thanks for all the replies,

The reason I went ahead and got this part was because I understood that it
wouldn’t need any adjustment, I wasn’t sure about this but I had read it
was so in a few places.

Yes Sam, I have removed the temp. solder bridge.

Gareth Magennis; There don’t appear to be any adjustable settings on the
main PCB, all I see is the one on the pickup PCB itself and I think I read
that that’s for laser power.

Mark Z; you don’t think its related to the pickup?

Tim Schwartz; both components are the latter that you said. What did you
mean by: “Unfortunately, there is a laser tilt adjustment that is
mechanical as well“
Is this one of the screws on the pickup unit, the one that isn’t thread
locked? Why is it unfortunate?

Thanks again

 

[papo]

The SONY TV model is KV-35S65

You mean, the MENU stuff?

If so, I don't recall if it does when it goes totally black (stays black).

But with the current 2-3 second blackout cycle, it effectively turns it off,
so I have to keep pressing MENU again to get to the display. I have to be
very fast to do anything, which of course, not much.

However, with the Channel 19 "oddity" where it doesn't blackout while it is
showing the simple bulletin menu, I have full access to the menu. I really
hate throwing this odd thing into the loop because it sounds so strange.
Sort of like the video is confusing the TV somehow.

Thanks

--

"Shoreline Electronics" <jstielau@snet.net> wrote in message
news:rcdOd.2803$ng6.602@newssvr17.news.prodigy.com...

Whets the model #?

When it goes black , can you get the on screen displays ( OSD)?



--
==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@snet.net
========================

"papo" <nospam@nospam.com> wrote in message
newsvcOd.665$Tn6.132@bignews3.bellsouth.net...
I have a problem with this Sony 35" Dual PIP/Trinitron TV and I need to
decide if I should put the expense to repair or a get a new TV.

Problem started within the first year 2002 where the video would just go
black. The sound is ok. At first, it was intermittent and you took your
chance then turning on the TV. But eventually, it went totally black.
Since it was under warranty, it was picked up and "repaired."
Authorized
service invoice indicated a "Flyback Transformer" was replaced.

When it was returned, it happen again. But strangely, it was not
repeatable.

In September 2004, we noticed it to begin happen again, and in December
it
went totally black. This time, being more savvy with the web, I
checked
the Sony web site and they had a FAQ showing the problem. The
recommendation of unplugging the TV for 30 seconds seemed to fix the
problem. The screen was back! Eventually, again, it went black.

We were in the process of moving into a new Home, so we wanted to get
settled before addressing the TV problem. We moved, put the TV in its
new
place, turned it on and for the entire month January 2005, it was
working
fine! But we never turned it off!!

Well, for the last week its has been going black now every 2-3 seconds.
If
you turn off the TV, it may stay black. Unplug it, you get the screen
back,
but with this 2-3 second blackout.

Here is the ODD thing. There are a channel that don't create this
problem.
In other words, if I put on channel 19, our local non-profit TV station
with
a "Bulletin Board" of town events, the 2-3 second blackout does not
occur.
Change the channel - the 2-3 secs blackout starts again. It is now 100%
repeatable.

How Strange!

Anyway, I guess I would like to know if this is a known problem. Could
it
be
repaired or I just swallow the lost of this TV and get another one?
One
thing for sure, I'm never buying Sony again.

Thanks in advance

 

[Mark D. Zacharias]

The switch is stand-up mounted on a circuit board underneath the pickup.
Kind of hard to get to.

Mark Z.


"George Neuner" <gneuner2/@comcast.net> wrote in message
news:40ph01p5arovjtmt8f4n6320lksbi3cq3t@4ax.com...

On Mon, 7 Feb 2005 19:39:49 -0600, "Mark D. Zacharias"
mzacharias@yis.us> wrote:

Of course the lens should be cleaned, and other maintenance done, but this
problem is usually caused by the sled limit switch not quite making
contact.
Common problem.

Mark Z.

Thanks for the suggestion.

I don't know how common it is. I also have a C500 in another room and
among my siblings there are three more Sony carousel units - different
models but all of similar vintage (10-15 years old). All have been
moved cross country multiple times and until now none of them have
ever required more than a simple cleaning.

I don't have a repair manual for the C325, is the sled limit switch
easy to check? And where do I get parts?

George
--
for email reply remove "/" from address

 

[Ray]

But with the current 2-3 second blackout cycle, it effectively turns it off,
so I have to keep pressing MENU again to get to the display. I have to be
very fast to do anything, which of course, not much.

However, with the Channel 19 "oddity" where it doesn't blackout while it is
showing the simple bulletin menu, I have full access to the menu.

Papo,
Although your description doesn't match exactly, my first impression is
the closed caption function is turned on and blanking the screen on most
channels. Go to channel 19 (so the picture stays on) and into the menu. Locate
the closed caption function and turn it off.

Ray

--

My return addy is spamblocked. To reply, remove the zeroes.

 

[papo]

"papo" <nospam@nospam.com> wrote in message
news:xEfOd.98$Wg1.42@bignews3.bellsouth.net...

The SONY WebSite Knowledge base has the blackout problem documented with
Turn Off, Unplug for 30 second solution before servicing is recommended.
So
obviously I am not the first owner of this TV model with what seems to be
a
"flaw" in the TV video control system, but then again, I am a TV repair
guy

Oops: ".... I am *not* a TV repair guy."

 

[Jim Adney]

On 8 Feb 2005 17:16:53 -0800 chris-google@pobox.com wrote:

If you record on this machine and then play it back on the SAME
machine, does that work well? If so, I'd say that the tracking is
simply off.

Nope, same behavior. Static pure as the driven snow

Sounds like there is no condition under which this plays any video
back. I'd try cleaning the video heads first. Check repairfaq.org for
instructions. I hope that's the right URL.

Otherwise, there are lots of links in the video chain, and the problem
could be anywhere along it.

-
-----------------------------------------------
Jim Adney jadney@vwtype3.org
Madison, WI 53711 USA
-----------------------------------------------

 

[TCS]

On Tue, 8 Feb 2005 22:49:43 -0500, papo <nospam@nospam.com> wrote:

There are lots of much better brands like toshiba. Even sanyo is likely to
be an improvement over the sony.
....

Thanks for the suggestions: Toshiba and Sanyo.

Actually, I wouldn't suggest Sanyo; I was just pointing out that sony
ranks down near the bottom for reliability.

I'd look at brands like toshiba, panasonic, sylvania, sharp, perhaps jvc. I'd
avoid sony as well as all the fly-by-night made-in-china brands showcased at
walmart such as apex.

 

[Gareth Magennis]

I replaced a laser assembly in a Denon once, and like yours it made no
difference and I gave up. A while later I fitted the new laser in another
Denon and again it made no difference. It wasn't until some time later I
discovered the new laser was faulty. Doh.

 

Otherwise, there are lots of links in the video chain, and the
problem could be anywhere along it.

OK, thanks, I'll give it a shot. But assuming that goes nowhere, I'm
back to the subject of this thread. Can anyone recommend a good repair
shop in the Atlanta area?

 

what year is the vcr from?

i ahve had to replace recently the caps on the head preamp board (which
had leaked) of a hitachi vcr from the early 90s which had similar
problems to yours. You could try that first.
-Ben

 

[Travis Jordan]

Sam Goldwasser wrote:

Well, it fits physically and as I said, seems to pass power on boot
diagnostics.

So it must be a 144 pin module. Does it have eight chips (double sided)
or four?

I agree that it is interesting that the memory is recognized by the
BIOS. Did you try removing the existing 128MB module and replacing it
with the 256MB module?

 

[Travis Jordan]

Sam Goldwasser wrote:

Unfortunately, that requires almost total disassembly of the laptop
since it is on the *bottom* of the mainboard.

Ugh - I suppose the base memory may be soldered in, too, which would
make swapping it out completely impractical.

You can pick up a 128MB PC100 module for $35 plus $5 shipping if you
really feel you need the upgrade. I'll note that for most uses Windows
ME runs just fine on 128mb.

http://www.memorysuppliers.com/mic12pc144pi1.html

..

 

[Travis Jordan]

Sam Goldwasser wrote:

I know. It's sort of a purity thing. I'd like it to be full.
This memory was already available.

Oh yeah, I know about the 'sense of completeness' feeling <grin>.

 

[RonKZ650@aol.com]

I've worked on a few sets filled with dead cockroaches. I always
thought it would be great to be able to tell the customer when they ask
"What was wrong with it" to truthfully say "Cockroaches were all over
in there and shorted out the electronics". Unfortunately removal of
dead roaches never actually helped fix any of these sets :-(

 

[True american Zero]

Hello,

I knew a great guy named Tim Schwartz from a company called E-Mu
Systems in Santa-Cruz (USA). He wazs the service manager.
It would heve been funny !

Cheers
Georges