Toshiba TV29C90 problem; Image fades to black...

Mike wrote:

"Geoffrey S. Mendelson" wrote:


Mike wrote:

I opened the box yesterday, didn't see anything that looked like a relay.


Generally the ticking noise is a self destructing swithing powersupply. Some sort
of internal fault detection (or a fault itself) is causing it to shut off, and
then after it resets, it trys again.

This causes the oscillator to start up again, and makes the core of the
transformer "click".

Checking capacitors is a good idea, they are often at fault.

Occasionaly, they have enough juice stored in the filter caps that it stays
on without being noticed as a failure.

We had a combination satellite box and pvr that did it for the last 3 years.
It still worked fine until it reached over 100F here (first time in the
14 years I've been here), when it crashed.

Since our cable bill included insurance on the unit, they came out and replaced
it with a new one. It runs much cooler and does not click.

Geoff.

--
Geoffrey S. Mendelson N3OWJ/4X1GM
To help restaurants, as part of the "stimulus package", everyone must order
dessert. As part of the socialized health plan, you are forbidden to eat it. :)


So it could die tomorrow or work for years? I'd just leave it alone until it did
die, but I can hear the noise while watching TV and it's quite annoying.

Has the cable company been in your area lately? Are you using a legal
Click to expand...
box? are you sure your friendly cable company didn't install a charge
pump device on your line to burn out your illegal box ?

Inquiring/creative Minds would like to know..
 
On Wed, 15 Sep 2010 19:19:34 -0400, Jamie
<jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:

Mike wrote:


"Geoffrey S. Mendelson" wrote:


Mike wrote:

I opened the box yesterday, didn't see anything that looked like a relay.


Generally the ticking noise is a self destructing swithing powersupply. Some sort
of internal fault detection (or a fault itself) is causing it to shut off, and
then after it resets, it trys again.

This causes the oscillator to start up again, and makes the core of the
transformer "click".

Checking capacitors is a good idea, they are often at fault.

Occasionaly, they have enough juice stored in the filter caps that it stays
on without being noticed as a failure.

We had a combination satellite box and pvr that did it for the last 3 years.
It still worked fine until it reached over 100F here (first time in the
14 years I've been here), when it crashed.

Since our cable bill included insurance on the unit, they came out and replaced
it with a new one. It runs much cooler and does not click.

Geoff.

--
Geoffrey S. Mendelson N3OWJ/4X1GM
To help restaurants, as part of the "stimulus package", everyone must order
dessert. As part of the socialized health plan, you are forbidden to eat it. :)


So it could die tomorrow or work for years? I'd just leave it alone until it did
die, but I can hear the noise while watching TV and it's quite annoying.

Has the cable company been in your area lately? Are you using a legal
box? are you sure your friendly cable company didn't install a charge
pump device on your line to burn out your illegal box ?

Inquiring/creative Minds would like to know..
Click to expand...
Yes, it's a legal box. I bought it used on ebay from a guy who had
moved to a different city and he'd switched to a different cable
company. When he left, he had the cable company de-activate the box
and when I connected it to the TV I had to call the cable company to
activate it before it would work. I think the cable company would
know if the box was legal or not...

Is your mind satisfied now?
 
Kudos to you Mark, and others, that are inquisitive enough to closely
examine faulty/counterfeit parts, and report the incidents.

The previous instances of fake components that I've heard about were
epoxy-bodied parts.. from the early PC cache-RAM that was just epoxy and
pins, to power transistors and audio power amp modules more recently.

So much for global trade. As distributors source components, they're rarely
certain about the quality anymore, and possibly more concerned with only the
cost difference of various sources.

I think the chances of finding fake components is more likely when they're
purchased from a mega-huge supplier like present-day MCM.
Fakes from smaller suppliers can happen too, because the fakes seem to be
getting into numerous supply chains.

Everything has changed with China as a mainstream source of almost
everything. Another aspect might be that there is always an abundance of
surplus and transporting it globally is fairly inexpensive.
So what does a guy do with 3 million excess empty TO-3 cases? Scrap value
might not be very much.

I don't recall hearing of fake components being found in ECG/NTE packaging.
As I'm sure you know, the cost difference isn't because of the individual
packaging in the plastic bag.

I've purchased some hardware parts (coaxial power connectors) from some
China sellers on eBay recently, and the poor quality is surprising.
The difference in quality is far below that of (RS) that shack store, who's
parts aren't anywhere near high quality (but some of their products are from
Taiwan, not China).

Chinese manufacturers can produce decent quality parts, but they don't need
to when their parts are found in supply chains (not that I'm saying that
eBay is a supply chain for reliable parts).

--
Cheers,
WB
..............


"Mark Zacharias" <mark_zacharias@sbcglobal.net> wrote in message
news:4c93500b$0$10271$c3e8da3@news.astraweb.com...
First, thanks to Chuck Hart for mailing me the schematics.

OK, well, there's this bi-amped powered loudspeaker. The tweeter amp is
blown.
The outputs are 2N6284 and 2N6287 Darlington TO-3 package transistors.
Pretty obscure these days. The schematic info also included NTE subs but
those were nearly 20.00 each, with no guarantee in my mind as to quality,
etc.

So I ordered the 2N numbers from MCM. More like 5.00 each and I've had
pretty good luck with MCM lately. When I received them, they were
mismatched
vendor markings, and one looked like cheap crap so I tested them right
away.
Actually, the one that looked like crap was OK, but the "2N6287" with
Thomson ST markings was SHORTED emitter-base right out of the chute. I
called MCM - "Oh, gee we're sorry" and they sent me another, no need to
return the bad one.
So I cut it open. It wasn't even a Darlington, just a single emitter base
junction and the die was only 2mm instead of 5mm. There was a visible gash
across the die, so obviously the thing was never tested in manufacture.

So I receive the replacement. I test it, and this one is OPEN emitter
base.
Once again I call MCM, got credit and no need to return them, so I cut
this
one open as well. Here's the fun part:

The transistor case was EMPTY. No die, no leads, just an empty case. I've
emailed pics to MCM.

With a little more research I was able to get the Onsemi MJ versions from
Allied, so all is well, and the repair worked out OK.

Those on the group using a binary server should see the pics. Anyone else
interested, I can email them to you.

Mark Z.
Click to expand...
 
On Mon, 13 Sep 2010 19:15:46 -0400, mike@nowhere.nope wrote:

Have a Scientific Atlanta Explorer 3200 cable box that yesterday
started making a ticking noise when it's on. The ticking noise is
coming from the box itself, not the TV speakers. If I remove the
coaxial cable that's coming from outside the noise goes away, screw
the cable back in the noise comes back. No problem with the TV
picture or sound. I presume it's a component inside the box that's
dying, and when it does picture and sound will die as well. Anyone
have any ideas what could be causing this?

And no, I don't think the box is about to explode. At least I hope
it's not. :)
Click to expand...
I always hate it when someone posts a message asking for help, gets
replies and then doesn't bother to post what happened. Well, that
someone isn't me...
I gave up on that Explorer 3200 cable box. So I've re-connected the
box I'd been using before I bought the 3200 (it's an Explorer 940 - no
display or buttons on the front, and cheaply made - the box itself is
plastic - it's a piece of crap, but it works and doesn't tick...).
Thanks to everyone for trying to help.
 
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On Sep 23, 10:14 am, Don Lancaster <d...@tinaja.com> wrote:
These attach to the carrying handle and let you adjust the position.
Need both the handle part and the chassis part.

The handle part is cylindrical and about an inch in diameter.
The chassis part is a rectangular square with machined rings in it.

Used condition fine.

Also need a new lid if the price is reasonable.


Many thanks,
Click to expand...

Ebay has kits like that. Folks that insert equipment into rack
mounts and the like never use those kits and some of them are
smart enough to sell them. You can also buy it from HP as a kit,
but I assumed that you knew that already and posted looking for
a cheaper route. After spending not to many personal hours
looking though, you could have simply bought the HP kit.
 
On 9/25/2010 9:51 AM, WallyWallWhackr wrote:
On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com> wrote:
These attach to the carrying handle and let you adjust the position.
Need both the handle part and the chassis part.

The handle part is cylindrical and about an inch in diameter.
The chassis part is a rectangular square with machined rings in it.

Used condition fine.

Also need a new lid if the price is reasonable.


Many thanks,


Ebay has kits like that. Folks that insert equipment into rack
mounts and the like never use those kits and some of them are
smart enough to sell them. You can also buy it from HP as a kit,
but I assumed that you knew that already and posted looking for
a cheaper route. After spending not to many personal hours
looking though, you could have simply bought the HP kit.
Click to expand...

Thanks for the tip, but this is the pivot for the tilt handle, and is
not involved in the rack mount stuff.

Also HP has discontinued all parts support for this item.
But possibly the same handle pivot is used on something newer.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
Don Lancaster wrote:
On 9/25/2010 9:51 AM, WallyWallWhackr wrote:
On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com> wrote:
These attach to the carrying handle and let you adjust the position.
Need both the handle part and the chassis part.

The handle part is cylindrical and about an inch in diameter.
The chassis part is a rectangular square with machined rings in it.

Used condition fine.

Also need a new lid if the price is reasonable.


Many thanks,


Ebay has kits like that. Folks that insert equipment into rack
mounts and the like never use those kits and some of them are
smart enough to sell them. You can also buy it from HP as a kit,
but I assumed that you knew that already and posted looking for
a cheaper route. After spending not to many personal hours
looking though, you could have simply bought the HP kit.

Thanks for the tip, but this is the pivot for the tilt handle, and is
not involved in the rack mount stuff.

Also HP has discontinued all parts support for this item.
But possibly the same handle pivot is used on something newer.
Click to expand...

I wouldn't bet on it. They don't discontinue an item, until it is
either NLA from their supplier, or every piece of equipment that used it
has dropped off the end of long term support. I can find no reference
to HP 833A, except for this message. IS that the right model number?


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.
 
On 9/25/2010 3:23 PM, Michael A. Terrell wrote:
Don Lancaster wrote:

On 9/25/2010 9:51 AM, WallyWallWhackr wrote:
On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com> wrote:
These attach to the carrying handle and let you adjust the position.
Need both the handle part and the chassis part.

The handle part is cylindrical and about an inch in diameter.
The chassis part is a rectangular square with machined rings in it.

Used condition fine.

Also need a new lid if the price is reasonable.


Many thanks,


Ebay has kits like that. Folks that insert equipment into rack
mounts and the like never use those kits and some of them are
smart enough to sell them. You can also buy it from HP as a kit,
but I assumed that you knew that already and posted looking for
a cheaper route. After spending not to many personal hours
looking though, you could have simply bought the HP kit.

Thanks for the tip, but this is the pivot for the tilt handle, and is
not involved in the rack mount stuff.

Also HP has discontinued all parts support for this item.
But possibly the same handle pivot is used on something newer.


I wouldn't bet on it. They don't discontinue an item, until it is
either NLA from their supplier, or every piece of equipment that used it
has dropped off the end of long term support. I can find no reference
to HP 833A, except for this message. IS that the right model number?
Click to expand...

Oops 853A. pectrum analyzer mainframe.
Agilent shows no parts support except for a user manual.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
On Sat, 25 Sep 2010 21:23:08 -0700, Don Lancaster <don@tinaja.com>
wrote:

Oops 853A. pectrum analyzer mainframe.
Agilent shows no parts support except for a user manual.
Click to expand...
The HP853A is a rack mount mainframe for the 8557A/8558A/8559A
spectrum analyzer plugins. I can't tell what you're trying to
accomplish, but if you want portable, swapping for the much more
common HP180A (smaller screen), HP181A (storage scope, small screen)
or HP182T (large screen, storage scope) mainframes might be a better
alternative to finding the case parts. I have one buried somewhere
that might work, but I'm not sure about mainframe compatibility to
your unspecified plugin.


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
On Sep 25, 4:38 pm, Don Lancaster <d...@tinaja.com> wrote:
On 9/25/2010 9:51 AM, WallyWallWhackr wrote:



On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com>  wrote:
These attach to the carrying handle and let you adjust the position.
Need both the handle part and the chassis part.

The handle part is cylindrical and about an inch in diameter.
The chassis part is a rectangular square with machined rings in it.

Used condition fine.

Also need a new lid if the price is reasonable.

Many thanks,

Ebay has kits like that.  Folks that insert equipment into rack
mounts and the like never use those kits and some of them are
smart enough to sell them.  You can also buy it from HP as a kit,
but I assumed that you knew that already and posted looking for
a cheaper route.  After spending not to many personal hours
looking though, you could have simply bought the HP kit.

Thanks for the tip, but this is the pivot for the tilt handle, and is
not involved in the rack mount stuff.

Also HP has discontinued all parts support for this item.
But possibly the same handle pivot is used on something newer.

--
Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml  email: d...@tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com
Click to expand...
Silly. Folks that do the rack installs have the HANDLE KIT as
surplus.

There are hundreds if not thousands of them out there.
 
On 9/25/2010 9:52 PM, WallyWallWhackr wrote:
On Sep 25, 4:38 pm, Don Lancaster<d...@tinaja.com> wrote:
On 9/25/2010 9:51 AM, WallyWallWhackr wrote:



On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com> wrote:
These attach to the carrying handle and let you adjust the position.
Need both the handle part and the chassis part.

The handle part is cylindrical and about an inch in diameter.
The chassis part is a rectangular square with machined rings in it.

Used condition fine.

Also need a new lid if the price is reasonable.

Many thanks,

Ebay has kits like that. Folks that insert equipment into rack
mounts and the like never use those kits and some of them are
smart enough to sell them. You can also buy it from HP as a kit,
but I assumed that you knew that already and posted looking for
a cheaper route. After spending not to many personal hours
looking though, you could have simply bought the HP kit.

Thanks for the tip, but this is the pivot for the tilt handle, and is
not involved in the rack mount stuff.

Also HP has discontinued all parts support for this item.
But possibly the same handle pivot is used on something newer.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d...@tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com

Silly. Folks that do the rack installs have the HANDLE KIT as
surplus.

There are hundreds if not thousands of them out there.
Click to expand...

All I need is ONE.
Price and availability?


--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
Don Lancaster wrote:
On 9/25/2010 9:52 PM, WallyWallWhackr wrote:
On Sep 25, 4:38 pm, Don Lancaster<d...@tinaja.com> wrote:
On 9/25/2010 9:51 AM, WallyWallWhackr wrote:



On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com> wrote:
These attach to the carrying handle and let you adjust the position.
Need both the handle part and the chassis part.

The handle part is cylindrical and about an inch in diameter.
The chassis part is a rectangular square with machined rings in it.

Used condition fine.

Also need a new lid if the price is reasonable.

Many thanks,

Ebay has kits like that. Folks that insert equipment into rack
mounts and the like never use those kits and some of them are
smart enough to sell them. You can also buy it from HP as a kit,
but I assumed that you knew that already and posted looking for
a cheaper route. After spending not to many personal hours
looking though, you could have simply bought the HP kit.

Thanks for the tip, but this is the pivot for the tilt handle, and is
not involved in the rack mount stuff.

Also HP has discontinued all parts support for this item.
But possibly the same handle pivot is used on something newer.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d...@tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com

Silly. Folks that do the rack installs have the HANDLE KIT as
surplus.

There are hundreds if not thousands of them out there.

All I need is ONE.
Price and availability?
Click to expand...

|----||----|
| DO NOT |
| FEED THE |
| TROLLS! |
|----||----|
||
||
||
/|\\|/||||//|||/\???\\//\\\\/|?\/\\\\/\/\/\||||\


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.
 
On Sun, 10 Oct 2010 09:30:32 -0700, easy cash wrote:

Too Much Sexy Girls In This World
Click to expand...
No there aren't.



--
Live Fast, Die Young and Leave a Pretty Corpse
 
On Thu, 04 Nov 2010 23:07:24 +0100 OBones <obones_gfd_@_gfd_altern.org>
wrote in Message id: <4cd32e9a$0$4480$426a74cc@news.free.fr>:

Hello,

Browsing around on the web, I stumbled across this page:

http://www.seeedstudio.com/blog/2010/08/17/dso-nano-v2-official-leak/

On the paper, this looks interesting for me as a hobbyist.
Reading some reviews, I understand that this is not comparable to a more
complete DSO (Rigol DS1502E comes to mind), but could be enough for my
limited usage.

Do you know about this device?
What do you think of it?
Has anyone around here used it?
Click to expand...
(SER added)

Lots of limitations: 1 channel, 1MHz analog bandwidth, 1MSa/s.

Cute though. Might be good for finding high ESR caps, especially in hot
circuits because it's (obviously) isolated being battery powered.
 
On Fri, 05 Nov 2010 06:00:01 -0400, JW wrote:

Cute though
Click to expand...
Thanks, come over and jack me off.
--
Shit! I thought no one knew, goddammit!
http://preview.tinyurl.com/29p4ody
Me, jacking off! http://preview.tinyurl.com/3xpntge Available For
Lessons!
 
Jeffrey Angus wrote:
On 12/2/2010 1:56 AM, Sivakumar durai wrote:
Money making company

Oh? So what, you sell printing presses?

Jeff
Click to expand...

No, he spams a lot of groups, promising different things just to get
hits on that website.


--
For the last time: I am not a mad scientist, I'm just a very ticked off
scientist!!!
 
Lady Veteran wrote:
On Sat, 26 Feb 2011 00:21:26 -0700, "Tom" <tom@nospam.net> wrote:

Tells us to all eat healthy foods, no snacks, no soda--yet this big assed
cuntbag went to colorado for a trip and ate some realy high caloric intake

Don't yo idiots do the same. You are in here harassing fat people yet
you don't abide by what drivel you preach.

If she wants ribs once in a while she is allowed to have them. What is
it to you? The key is moderation-something you idiots have never heard
of...
Click to expand...
Your idea of moderation is 8,000 calories a day instead of the usual 15,000

She is a two faced 4the generation ex slaver monkey bitch-who has no reason
or power to tell people how or what to eat

I see, the old racist lives again. Man up coward. If you really
believed that you would not do it behind a nym.

she needs to go back to Africa and suck babannas, and take the commie faggot
wonder boy--the light green blue gummes bastard nigger from Kenya with her

I think your mother dropped you on your head as a baby. That has to be
the reason you are such an idiot.
Click to expand...
I think if your mother dropped you on your head as a baby it would break
off and a 3.0 earthquake would ensue.

Fuck both of these cocksuckers
rschuh@yahoo.com
Proud to be White

Yep.

White washed and a coward to boot.

You got a problem with white people? Of course, your skin is shit
Click to expand...
colored like your teeth.
LV
Click to expand...
 
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