JVC 55" Rear-projection TV

Jim Thompson · May 4, 2012

Our 18 year-old rear projection TV (JVC 55" Letter-box) has finally failed...
or not quite... the blue sweep only, dips dramatically in the upper middle of
the screen making for some garish looking pictures... particularly on old B&W
Hitchcock re-runs (playing here w/o commercials ;-)

So I bought a 55" LCD (LED-backlit) at 1/4 the price of the original.

The new set weighs 40#, the old one is so heavy I can barely
lift one end. I had visions of throwing it on my pick-up truck and taking it
to this weekend's hazardous waste at the local park. But I'd need a couple of
moving-company-strength assistants.

Anyone here in Arizona want it?

If not I'll bust it up and dispose in liftable chunks.

Also listed at...

http://phoenix.craigslist.org/evl/ele/2994884637.html

Contact info in the sig...

...Jim Thompson
--

| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice

Jeff Urban · May 6, 2012

Throw in on craigslist or whatever and get fifty bucks or something
for it. Or even give it away. It has a convergence problem and can be
fixed. But if you bust it up you them waste the pollution caused to
build the thing.

Plus the fact that those things are ten times more reliable than the
new stuff so someone without alot of money could have it for a while.

T

Jim Thompson · May 7, 2012

Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson
--

| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice

Jim Thompson · May 7, 2012

Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson
--

| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice

Winston · May 7, 2012

Jim Thompson wrote:

Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

It'd make a bodacious oscilloscope for your local
technical museum.

--Winston

Robert Macy · May 8, 2012

On May 7, 10:32 am, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My-
Web-Site.com> wrote:

Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson
--

| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon athttp://www.analog-innovations.com| 1962 |

I love to cook with wine. Sometimes I even put it in the food.

...Jim Thompson
--

| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon athttp://www.analog-innovations.com| 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Copper is just NOT that expensive yet. And, don't see any gold.

ehsjr · May 8, 2012

Jim Thompson wrote:

Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson

Hook up wire from the harness.

Ed

May 8, 2012

On May 7, 10:32 am, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My-
Web-Site.com> wrote:

Here it is, broken open, a couple of hidden screws "assisted" by
force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson
snip

And don't tell me, the new set picture is MASSIVELY better than the
old one even on its best day. Try Craig's list and then dismantle it.
RIP JVC. Why didn't you replace it sooner?

G˛

amdx · May 8, 2012

On 5/7/2012 12:32 PM, Jim Thompson wrote:

Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson

http://www.ebay.com/itm/49-FRESNEL-LENS-Solar-Oven-Hot-Water-Linear-Fresnel-/180858525448?pt=LH_DefaultDomain_0&hash=item2a1c021708
$80.00

http://www.ebay.com/itm/38X24-SOLAR-FRESNEL-LENS-linear-solar-water-heater-OVEN-uv-stable-long-life-/170822535955?pt=LH_DefaultDomain_0&hash=item27c5d10b13
$34.00

http://www.ebay.com/itm/56-FRESNEL-LENS-SOLAR-OVEN-WATER-HEATER-FRAMED-linear-/170814188711?pt=LH_DefaultDomain_0&hash=item27c551aca7
$97.50

That's going three pages deep on ebay.

Some have a frame built and installed.
Mikek

Jim Thompson · May 9, 2012

On Mon, 07 May 2012 23:57:09 -0400, ehsjr <ehsjr@nospamverizon.net> wrote:

Jim Thompson wrote:
Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson

Hook up wire from the harness.
Ed

flipper · May 9, 2012

On Tue, 08 May 2012 17:06:30 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Mon, 07 May 2012 23:57:09 -0400, ehsjr <ehsjr@nospamverizon.net> wrote:

Jim Thompson wrote:
Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson

Hook up wire from the harness.
Ed

Full knock-down...

http://www.analog-innovations.com/SED/JVC_TV_KnockDown.pdf

They don't make them like that anymore.

...Jim Thompson

Good grief, you think there's enough timmers in there?

T · May 9, 2012

In article <24ljq79aah8j1795d9bddkg4q28qo2qs0m@4ax.com>,
flipper@fish.net says...

On Tue, 08 May 2012 17:06:30 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Mon, 07 May 2012 23:57:09 -0400, ehsjr <ehsjr@nospamverizon.net> wrote:

Jim Thompson wrote:
Here it is, broken open, a couple of hidden screws "assisted" by force ;-)

http://www.analog-innovations.com/SED/Gutted_JVC.jpg

Anything there worth saving?

I see some nice heatsinks.

The "screen" _is_ a grating (Fresnel?). Is that worth anything?

...Jim Thompson

Hook up wire from the harness.
Ed

Full knock-down...

http://www.analog-innovations.com/SED/JVC_TV_KnockDown.pdf

They don't make them like that anymore.

...Jim Thompson

Good grief, you think there's enough timmers in there?

I counted - I saw 115 trimpots on that one board. Damnation!

However, it is a scavengers dream. Lots of well marked VLSI chips on
there.

Tom Del Rosso · May 9, 2012

Jim Thompson wrote:

Full knock-down...

http://www.analog-innovations.com/SED/JVC_TV_KnockDown.pdf

They don't make them like that anymore.

Maybe an astronomy club would want those lenses.

--

Reply in group, but if emailing add one more
zero, and remove the last word.

Martin Brown · May 9, 2012

On 09/05/2012 20:19, Tom Del Rosso wrote:

Jim Thompson wrote:

Full knock-down...

http://www.analog-innovations.com/SED/JVC_TV_KnockDown.pdf

They don't make them like that anymore.

Maybe an astronomy club would want those lenses.

They would be nothing like diffraction limited or monochromatic so the
best bet is to donate them to the scouts for fire starting with the sun.

--
Regards,
Martin Brown

Jim Thompson · May 9, 2012

On Wed, 9 May 2012 15:19:55 -0400, "Tom Del Rosso" <td_03@verizon.net.invalid>
wrote:

Jim Thompson wrote:

Full knock-down...

http://www.analog-innovations.com/SED/JVC_TV_KnockDown.pdf

They don't make them like that anymore.

Maybe an astronomy club would want those lenses.

Jim Thompson · May 9, 2012

On Wed, 09 May 2012 13:31:30 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Wed, 9 May 2012 15:19:55 -0400, "Tom Del Rosso" <td_03@verizon.net.invalid
wrote:

Jim Thompson wrote:

Full knock-down...

http://www.analog-innovations.com/SED/JVC_TV_KnockDown.pdf

They don't make them like that anymore.

Maybe an astronomy club would want those lenses.

I suspected they might be good for something.

...Jim Thompson

Michael A. Terrell · May 9, 2012

Jim Thompson wrote:

Note that there are only two CRT's shown... the third was the failure
mechanism... leaking oil ;-)

Glycol based coolant. That was a common failure, and fairly easy to
fix.

--
You can't have a sense of humor, if you have no sense.

Jim Thompson · May 9, 2012

On Wed, 09 May 2012 16:39:51 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:

Jim Thompson wrote:

Note that there are only two CRT's shown... the third was the failure
mechanism... leaking oil ;-)

Glycol based coolant. That was a common failure, and fairly easy to
fix.

Michael A. Terrell · May 9, 2012

Jim Thompson wrote:

On Wed, 09 May 2012 16:39:51 -0400, "Michael A. Terrell"
?mike.terrell@earthlink.net? wrote:

?
?Jim Thompson wrote:
??
?? Note that there are only two CRT's shown... the third was the failure
?? mechanism... leaking oil ;-)
?
?
? Glycol based coolant. That was a common failure, and fairly easy to
?fix.

And optical interface between CRT face and lens... cute!

Another problem with it was something growing in the coolant, witch
causes it to run hotter, and affecting the focus or having a dim area in
that color.

--
You can't have a sense of humor, if you have no sense.

Tom Del Rosso · May 10, 2012

Michael A. Terrell wrote:

Jim Thompson wrote:

Note that there are only two CRT's shown... the third was the
failure mechanism... leaking oil ;-)

Glycol based coolant. That was a common failure, and fairly easy to
fix.

Too late now.

--

Reply in group, but if emailing add one more
zero, and remove the last word.

JVC 55" Rear-projection TV

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