Toshiba TV29C90 problem; Image fades to black...

"N Cook" <diverse8@gazeta.pl> wrote in message
news:fd7tdb$s5d$1@inews.gazeta.pl...
No movements or laser light , totally dead CD player. Just -- in the
display.
Function sw and door latch sw ok. Plenty of 5V etc supplies around on the
chippery. Crystal and ceramic resonator have oscillation.
All 4 channel motor/focus driver o/p at 3.8V, all 4 inputs at 2.1V,
disable
is set off ie operational.
Pressing all sm chip leads , no change
Swapping laser and carrier/motors section with another one laying around,
the same zilch. No dodgy electrolytics.
Is there something obvious I'm overlooking ?
Not worth spending a lot of time on but a good customer for other stuff.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/
Don't forget the sled limit switch - brand and model info might help.

Mark Z.
 
On Thu, 21 Feb 2008 01:41:13 -0500, Michael A. Terrell wrote:
I always open an outside faucet wide open for about five minutes any
time the water is turned off to blow as much crap out of the lines
before using anything inside the house.
Hi Michael,
This is a GREAT idea! (if it works).

What I don't get is WHY there was all that sandy stuff after I replaced my
wagter heater. If anything, there should be LESS sediment in the lines, not
more (way more).

Where did all that sandy sediment that clogged every single faucet in our
tiny house come from?

Is this common that sediment blocks everything in one quick pass after
replacing a water heater?

If so, why did NONE of the tutorials I read mention that simple hint you
just gave us?

Donna
 
"Donna Ohl, Grady Volunteer Coordinator" wrote:
On Tue, 19 Feb 2008 17:31:43 -0600, jakdedert wrote:
This could turn into a whole new thread of major f*ckups that we learned
from....

So far, on my side of the story, the water heater, full of tepid water,
fell over, and the drain valve popped off spewing water about. I won't soon
forget that! The garage still stinks of smelly carpet!

The replacement of the water heater seems to have clogged all the faucets
(easy to clean), showerheads (even easier to clean), tub (still clogged),
and maybe even the dishwasher (work in progress).

I'm not sure *where* the sand came from but it's clearly in all the faucets
so I guess we kicked it loose somehow in the water heater removal and
replacement process.

Anyway, now it's time to "remove" the dishwasher, if I can.
Does it look like it can be removed from these pictures taken today?

Counter Top:
http://www.flickr.com/photos/donnaohl/2279233722/in/set-72157603947125744/

Latch:
http://www.flickr.com/photos/donnaohl/2279869536/in/set-72157603947125744/

Bottom Right:
http://www.flickr.com/photos/donnaohl/2279869542/in/set-72157603947125744/

Bottom Left:
http://www.flickr.com/photos/donnaohl/2279869546/in/set-72157603947125744/

Do you think this dishwasher can be removed without breaking the counter
tile?

Donna

I always open an outside faucet wide open for about five minutes any
time the water is turned off to blow as much crap out of the lines
before using anything inside the house.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
On Mon, 24 Sep 2007 12:47:19 +0100, N Cook wrote:

Arfa Daily <arfa.daily@ntlworld.com> wrote in message
news:OFMJi.37428$Db6.1245@newsfe3-win.ntli.net...

"N Cook" <diverse8@gazeta.pl> wrote in message
news:fd7tdb$s5d$1@inews.gazeta.pl...
No movements or laser light , totally dead CD player. Just -- in the
display.
Function sw and door latch sw ok. Plenty of 5V etc supplies around on
the
chippery. Crystal and ceramic resonator have oscillation.
All 4 channel motor/focus driver o/p at 3.8V, all 4 inputs at 2.1V,
disable
is set off ie operational.
Pressing all sm chip leads , no change
Swapping laser and carrier/motors section with another one laying
around,
the same zilch. No dodgy electrolytics.
Is there something obvious I'm overlooking ?
Not worth spending a lot of time on but a good customer for other stuff.


Can't think of anything that you seem to be overlooking. First place I
would
have gone is the same as you - to the door switch. Even though the switch
is
working ok in itself, I would still feel inclined to make sure that its
connections are making it all the way back to the micro, and doing
something
ie pulling a pin to ground or whatever. I've had internal pull-up
resistors
on micro pins fail. The only other thing that it's worth doing when all
else
has failed, and you've given up, is to try a possible 'real' system reset,
by holding in the power button and applying power, and if that fails, a
'naughty' engineer's reset, by turning off and removing power, then
hooking
a croc lead to ground, and stroking round every pin of every 'micro-ish'
IC
both on the front panel, and the CD process board. I've known this to
restore screwed up system controls on a number of occasions. I got it
originally from a manufacturer's training course, but so far back in the
dim
mists of time, I can't remember which one now ...

Arfa



Perhaps stripping off at midnight and dancing around it on a full moon might
work as well.
bwaaaaaaaaahahahahah
 
Hi,

I fixed the problem. C425 100uf 25V 85 deg. was low in capacitance.
I replace it with a 105 deg. type.

Now the TV starts up, but I can't change the channels!!! The channel
number changes, but not the channels!

Thanks in advance, Brad


On Mon, 24 Sep 2007 16:04:37 GMT, in sci.electronics.repair you wrote:

Hi,

I have a Magnavox TV model RJ5540 AK01, chassis 27G1-01AA
(mfg 04/89) in my shop that won't turn on. Note: I do not have SM
(Photofact 2676). Customer said it was hard to turn on and the problem
got worse over time. Now it won't turn on. The reg. B+ goes to 34V
at turn on. I replaced C426 10uf 50V which measured low, but that didn't
fix the problem.

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active keystroke logger (spyware) in your PC.
 
On Feb 20, 12:05�pm, "Donna Ohl, Grady Volunteer Coordinator"
<donna....@sbcglobal.net> wrote:
On Wed, 20 Feb 2008 16:51:51 GMT, GregS wrote:
I might first think about using a good shop vac and start sucking at the feed
from the water heater or main entrance.

Hi GregS,
Unfortunately, we do not have a "shop vac". My vacuum cleaner isn't likely
to do the job either ...

I will try tonight to remove the inlet water line if I can find where it
goes and to remove the solonoid to see if either have a screen.

If it's not that, then I'll look at the "float" and the "nozzle" wherever
they are, but first I'll try to see if it's the blue solonoid or the hidden
inlet screen if there is any.

Donna
clog can be anywhere and is likely multiple locations.......

good luck and replace you galvanized ASAP the rough interior surface
of galvanized pipe leads to gunk accumulating and breaking lose
causing clogs of all types.

soleanoid valves are easy to replace but expensive
 
"Donna Ohl, Grady Volunteer Coordinator" <donna.ohl@sbcglobal.net> wrote in
message news:6YXuj.5365$Mw.3754@nlpi068.nbdc.sbc.com...
On Tue, 19 Feb 2008 17:31:43 -0600, jakdedert wrote:
This could turn into a whole new thread of major f*ckups that we learned
from....

So far, on my side of the story, the water heater, full of tepid water,
fell over, and the drain valve popped off spewing water about. I won't
soon
forget that! The garage still stinks of smelly carpet!

The replacement of the water heater seems to have clogged all the faucets
(easy to clean), showerheads (even easier to clean), tub (still clogged),
and maybe even the dishwasher (work in progress).

I'm not sure *where* the sand came from but it's clearly in all the
faucets
so I guess we kicked it loose somehow in the water heater removal and
replacement process.

Anyway, now it's time to "remove" the dishwasher, if I can.
Does it look like it can be removed from these pictures taken today?

Counter Top:
http://www.flickr.com/photos/donnaohl/2279233722/in/set-72157603947125744/

Latch:
http://www.flickr.com/photos/donnaohl/2279869536/in/set-72157603947125744/

Bottom Right:
http://www.flickr.com/photos/donnaohl/2279869542/in/set-72157603947125744/

Bottom Left:
http://www.flickr.com/photos/donnaohl/2279869546/in/set-72157603947125744/

Do you think this dishwasher can be removed without breaking the counter
tile?

Donna
You can only try to get it out but to avoid problems try clearing the hose
first then worry about pulling the dishwasher out from its location. It
always annoyed me when I had to remove them from the benches for servicing
when I did it for a living as kitchen builders seem to always work to very
close fitting making it nearly impossible to remove and that is when it is
all built as a full unit. They never allow for variations including putting
down a new floor or replacing the unit whereas the new unit is usually a
different size, cupboards can easily be built up or facias placed in but
removing tops and cupboards is more difficult and expensive. At least it
looks easier for you as you have a level tile floor which will be easy to
slide it on and not damaged as easily.
Good luck and waiting for the result.
Just.
 
soleanoid valves are easy to replace but expensive

In the unlikely event that it needs it, she can have the solenoid from my
junk dishwasher, I haven't had a chance to haul it to the dump yet. I see
free dishwashers on craigslist all the time, most are made by just a few
different brands and have many parts in common.
 
On Tue, 19 Feb 2008 07:39:50 -0700, Rick Blaine wrote:

"Donna Ohl, Grady Volunteer Coordinator" <donna.ohl@sbcglobal.net> wrote:

I was wondering why BOTH the hot water outlet and the cold-water inlet had
check valves built into the respective dialectric nipples provided in the
top of the new tank!

If you are talking about the galvanized nipples with blue plastic flaps that go
between the heater at the cold/hot ports, those are thermal breaks - not check
valves. They reduce the heat loss from the tank into the pipes when the water is
not being used.

A check valve is significantly larger than a nipple and would typically only be
be found after the main valve and before the heater.
Hi Rick,
Oh. That changes things. I'll check with the literature. We thought the hot
had a heat check valve inside the nipple. It had a black rubber center
which the cold nipple didn't have.

Due to the fact there was little room, and we thought the heat-loss valve
was already there, we didn't put in a flap valve and we used a straight
stainless steel flexible pipe.

If what you say is correct, then we may need to replace the stainless steel
flexible pipe with an S-shaped copper flex tube plus a dialectric union.

One question that still confuses me is the BRASS on the ends of some of the
stainless steel and copper pipes. Can we pub BRASS to galvanized or must we
alwyas use a dialectric union. (I ask because the stainless steel pipe had
brass on the end yet it was advertised for iron to iron).

Donna
 
On Tue, 19 Feb 2008 05:23:57 -0800 (PST), trader4@optonline.net wrote:
There will be less water coming out than you experienced with your old
tank because of the vacuum of having all the valves in the house shut,

shut off the gas a long time before ...
you can use up most of the hot water in the tank
Hi trader,

I learned this one in spades!

We had used up some of the hot water (Bill took a really really long shower
with the gas turned off) before the fiasco of the snapped valve:
http://www.flickr.com/photos/donnaohl/2273262545/

We had warm, not hot, water all over the garage as the tank shot it out two
feet. Luckily I was around as the tank had just been righted after tipping
over as we tried to get it off the stand, full of water. It was horrid.
http://www.flickr.com/photos/donnaohl/2273262531/

The only good thing was you had already admonished us to have tepid water
in the tank and that's what saved us from getting scalded as Bill stuck his
finger in the hole (it was just the right size) to stop the leak and I
bucketed the water outside.
http://www.flickr.com/photos/donnaohl/2273262535/

We would have been burned had we not taken that good advice from this
newsgroup! Others should heed the warning too.

Thanks,
Donna
 
On Tue, 19 Feb 2008 05:27:28 -0800 (PST), hallerb@aol.com wrote:
the plastic valves are fine if they get just ONE use, to drain the
tank at end of use.......
Hi hallerb,
I understand your point. But, from what I read, they used to be brass and
the manufacturers switched to the plastic for cost reasons only.

Also, I read a brass ball valve doesn't clog as easily.

Given our experience this past weekend, where the valve first clogged and
then broke off inside the water heater, it would seem to us that over time,
the brass will be less likely to break than the plastic.

Of course, one reason ours clogged was likely the fact we never flushed it
so the sediments may have been too much for any valve - and one reason it
broke is that we were manhandling it trying to get the tipped-over water
heater back on the stand ... so you might be right.

I think I now understand how to replace the brass valve. In fact, a more
important issue came up in that our dishwasher suddenly stopped working. I
think it's due to the sediment being sent through the pipes (our shower
heads were totally clogged all of a sudden, with sandy grainy stuff).

I opened a separate thread on alt.home.repair to ask how to clean out a
dishwasher without being able to remove it (it's bricked in it seems).

I feel like "this old house" is attacking me so it's nice to have this
wonderful newsgroup as my friends to help in times of need!

Donna
 
If it's anything like the little filter screens on the hot water and
cold water inlet pipes to clothes washers machines, those little filter
screens should occasionally be cleaned.
cuhulin
 
On Wed, 20 Feb 2008 16:51:51 GMT, GregS wrote:
I might first think about using a good shop vac and start sucking at the feed
from the water heater or main entrance.
Hi GregS,
Unfortunately, we do not have a "shop vac". My vacuum cleaner isn't likely
to do the job either ...

I will try tonight to remove the inlet water line if I can find where it
goes and to remove the solonoid to see if either have a screen.

If it's not that, then I'll look at the "float" and the "nozzle" wherever
they are, but first I'll try to see if it's the blue solonoid or the hidden
inlet screen if there is any.

Donna
 
In article <fphlo3$3lt$1@usenet01.srv.cis.pitt.edu>, zekfrivo@zekfrivolous.com (GregS) wrote:
In article <eSXuj.11877$Ch6.6279@newssvr11.news.prodigy.net>, "Donna Ohl, Grady
Volunteer Coordinator" <donna.ohl@sbcglobal.net> wrote:
On Wed, 20 Feb 2008 07:48:20 GMT, James Sweet wrote:
Hey that looks identical to the one I just yanked out of my place
When you remove the kick plate, you'll find adjustable screw feet
The solenoid valve will be right up front on the left side, mine is blue.

Hi James,

You gave me the courage to tackle this maybe-clogged dishwasher:
http://www.flickr.com/photos/donnaohl/sets/72157603947125744/

Here's a pic, taken just now, with the "kick plate" removed:
http://www.flickr.com/photos/donnaohl/2279869546/

Are you suggesting I can remove that blue "solonoid" on the left side with
the brass pipe in it and that might be what's probably clogged?

Donna


I might first think about using a good shop vac and start sucking at the feed
from the water heater or main entrance. open all taps, and of course close
main valve. I think the line would have to reseparated at the tank. The
dishwasher fill would have to be activated to open valve.

??

greg
Do one tap at a time, or valve.

greg
 
In article <eSXuj.11877$Ch6.6279@newssvr11.news.prodigy.net>, "Donna Ohl, Grady Volunteer Coordinator" <donna.ohl@sbcglobal.net> wrote:
On Wed, 20 Feb 2008 07:48:20 GMT, James Sweet wrote:
Hey that looks identical to the one I just yanked out of my place
When you remove the kick plate, you'll find adjustable screw feet
The solenoid valve will be right up front on the left side, mine is blue.

Hi James,

You gave me the courage to tackle this maybe-clogged dishwasher:
http://www.flickr.com/photos/donnaohl/sets/72157603947125744/

Here's a pic, taken just now, with the "kick plate" removed:
http://www.flickr.com/photos/donnaohl/2279869546/

Are you suggesting I can remove that blue "solonoid" on the left side with
the brass pipe in it and that might be what's probably clogged?

Donna
I might first think about using a good shop vac and start sucking at the feed
from the water heater or main entrance. open all taps, and of course close
main valve. I think the line would have to reseparated at the tank. The
dishwasher fill would have to be activated to open valve.

??

greg
 
On Nov 6, 10:08 am, "rege...@gmail.com" <rege...@gmail.com> wrote:
SEX XEX SEX SEX SEX SEX

INDIAN SEX FUCKING STILL

ROMANCE SEX STILL

BATHROOM SEX VIDEO FULL MOVIE FREE

http://sexogirlslive.blogspot.com/
FUCK OFF YOU FUCKING SPAMMER
 
J McL:
Good idea.

Crossposted upon suggestion...note that this device
is a model railroad controller.

Transformer T1 delivers 1A.

pawlowsk...@gannon.edu wrote:
Folks:

Actually, this is a rather basic question, and a
scarcely hoopy frood could probably answer it.
Unfortunately, I burned a hole in my towel with
a soldering iron and had to throw it out.

I have an old MRC Ampack that works. It has
a decent power output, which is nice, and a
good-quality rheostat, but poor slow-speed
control on many of my locomotives. It was a
great $2 deal, but I want to make it better,
and here's what I want to do:

http://www.geocities.com/kezelak/ampack_mods.jpg

F1 is some sort of circuit breaker in a glass
envelope.

Basically, I want to make it into a very simple
voltage-follower transistor throttle, and add a
pulse-power switch to cut out one diode. If my
calculations are correct, the circuit should work.
The TIP-120 is supposed to have a gain of at
least 1000, and R3 is there to limit the base
current to no greater than 1.2 mA, which seems
adequate for controlling 1 A with that gain.

The circuit is pretty similar to what my MRC
Railpower 1300 contains, as far as I can tell,
and that gives good slow-speed control, even
without the option of pulse DC for low speeds.
I'm not really worried about heating effects.
I don't go in for coreless motors.

I am going to mount Q1 on an aluminum heat
sink. I could calculate the size needed, but
I'm not going to; I'll just go with "as big as fits"
and replace the $1.59 component if the smoke
comes out.

Any comments on this circuit before I
breadboard it up and try to fry things? It
seems simple, but I'm new at this.

Cordially yours:
Gerard P.
President, a box of track and a gappy table.
 
On Tue, 19 Feb 2008 17:18:06 -0800 (PST), hallerb@aol.com wrote:
I just installed a couple dishwashers, one for us and one for a
friend, and one for a friend, no screen washers,,,,,,,,,
Hi Hallerb,
I'm sorry I didn't see this earlier. I'm so confused with this discussion
as to where to post.

I hope others can keep up as I read *everything* everyone says and try to
answser the questions so I can help myself and others can follow after
we're done so the advice is never wasted.

I took a bunch of pics of the dishwasher today and put them here:
http://www.flickr.com/photos/donnaohl/sets/72157603947125744/

(Flicker apparently allows only 3 sets so I have to mix the dishwasher clog
with the tub clog which is, in a way, the same problem as it happened after
the water heater replacement).

I did do research on clogged dishwashers but it's hard to find anything
specific to the GE Nautilus.

This article says "unscrew the water inlet hose" to remove sediment:
http://www.rusticgirls.com/appliances/dishwasher-not-filling.html

This one says "debris" could be caught in the "spray arm":
http://www.mrappliance.com/expert/manual/dishwashers.aspx

This one again points to the "filter" and "solonoid":
http://www.home-appliance-kitchen-aids.com/dishwashers.html

This one suggests it might be the "float" that's clogged:
http://www.applianceandair.com/Dishwasher/dishwasher.html#nofill

I think what I'll do later today (I have the grandkids again) is take apart
the inlet line and the solonoid line if I can.

If I see sand in there, I'll know it's the problem!
Any other suggestions?

Donna
 
On Wed, 20 Feb 2008 11:37:11 +1100, Only Just wrote:
Any good installation of an appliance like a dishwasher
should have a filter screen / rubber washer fitted to the hose fitting to
the tap that controls the water to the appliance
Hi Only Just,

Another great confidence booster!

Given that wonderful suggestion, I snapped some more pics, just now, of
under the sink where the dishwasher water seems to be coming from instead
of looking under the "kickplate" where the dangerous-looking wires are.

It looks like a wire and two hoses come out of the dishwasher:
http://www.flickr.com/photos/donnaohl/2279911402/in/set-72157603947125744/

The white hose seems to go to the garbage disposal
http://www.flickr.com/photos/donnaohl/2279911408/in/set-72157603947125744/

The steel hose seems to come from the (badly corroded) hot water input:
http://www.flickr.com/photos/donnaohl/2279911438/in/set-72157603947125744/

Something, I'm not sure why there are three hoses, goes into the sink:
http://www.flickr.com/photos/donnaohl/2279911420/in/set-72157603947125744/

Does something here look like what you are describing might be clogged?
http://www.flickr.com/photos/donnaohl/sets/72157603947125744/

Donna
 
On Tue, 19 Feb 2008 17:31:43 -0600, jakdedert wrote:
This could turn into a whole new thread of major f*ckups that we learned
from....
So far, on my side of the story, the water heater, full of tepid water,
fell over, and the drain valve popped off spewing water about. I won't soon
forget that! The garage still stinks of smelly carpet!

The replacement of the water heater seems to have clogged all the faucets
(easy to clean), showerheads (even easier to clean), tub (still clogged),
and maybe even the dishwasher (work in progress).

I'm not sure *where* the sand came from but it's clearly in all the faucets
so I guess we kicked it loose somehow in the water heater removal and
replacement process.

Anyway, now it's time to "remove" the dishwasher, if I can.
Does it look like it can be removed from these pictures taken today?

Counter Top:
http://www.flickr.com/photos/donnaohl/2279233722/in/set-72157603947125744/

Latch:
http://www.flickr.com/photos/donnaohl/2279869536/in/set-72157603947125744/

Bottom Right:
http://www.flickr.com/photos/donnaohl/2279869542/in/set-72157603947125744/

Bottom Left:
http://www.flickr.com/photos/donnaohl/2279869546/in/set-72157603947125744/

Do you think this dishwasher can be removed without breaking the counter
tile?

Donna
 

Welcome to EDABoard.com

Sponsor

Back
Top