Question about Pentax K1000 35mm SLR Camera

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Fresnal lense I tried to clean the fresnal lense and now it appears darkened with smudges. Any suggestions on what to do?

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Hi-- first blow off any loose dust/dirt with blower and then you can use any rapidly evaporating cleaning solution ( window cleaning solution with amonia is OK ) to clean both sides. Do not use acetone ! ( will attack plastic ) . Benzine is also unsutable . Do not touch with fingers : remove with tweeezers and insert back with tweezers.

Posted on Sep 25, 2008

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I need both panels of the screen for a Hitachi 55VS69A. I don't really want to pay that much if possible.


You can find a new OEM Hitachi replacement lenticular screen and Fresnal screen (availble together as the screen assembly) for a model # 55VS69A from a major Hitachi distributor at the following links:


Hitachi 55VS69A Replacement Part Screen Assembly (Fresnal Screen w/ Lenticular Screen)

And here's a link for the protection screen if needed:

Hitachi 55VS69A Replacement Part Protection Screen / Super Shield

Apr 22, 2009 | Hitachi 55VS69 55" Projection HDTV

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Help I need a replacement screen


You can find a new OEM RCA replacement lenticular screen and Fresnal screen (availble together as the screen assembly) for a model # R52WH73 from a major RCA distributor at the following links:

RCA R52WH73 Replacement Part Screen Assembly (Fresnal Screen w/ Lenticular Screen)

And here's a link for the protection screen if needed:


RCA R52WH73 Replacement Part Protection Screen / Super Shield

Apr 10, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

Craked screen


You can find a new OEM Philips replacement lenticular screen and Fresnal screen for a model # 55PP9363H17 from a major Philips distributor at the following links:

Philips 55PP9363H/17 Replacement Part Lenticular Screen

Philips 55PP9363H/17 Replacement Part Fresnal Screen

And here's a link for the protection screen if needed:

Philips 55PP9363H/17 Replacement Part Protection Screen

Apr 02, 2009 | Philips 55PP9363 55" Rear Projection...

1 Answer

Crack in the screen 42" sony kdf-e42a10


You can find a new Sony replacement lenticular screen and fresnal screen for a model # KDF-E42A10 from a major Sony distributor at the following links:


Sony KDF-E42A10 Replacement Part Lenticular Screen

Sony KDF-E42A10 Replacement Part Fresnal Screen

Feb 16, 2009 | Sony Grand WEGA KF50WE610 50" Rear...

2 Answers

Fresnal lense


What kind of camera? Some camera's have removable fresnel lens held on by a spring loaded frame. Other camera's must be disassembled to replace the lens. There is no way to repair a damaged fresnel lens.
Pentax K1000 must be disassembled.

Sep 21, 2008 | Pentax K1000 35mm SLR Camera

1 Answer

Sony Model KP-53s70 (Need a replacement Lenticular/Fresnal screen)


Try here: http://www.tritronicsinc.com/
Or try here, they seem to be able to find hard to find replacement parts, including lenticular screens for Projection TVs:
http://www.tvscreenfinder.com/services

Jul 02, 2008 | Sony KP-53S70 53" Rear Projection...

1 Answer

SCREEN


Hi,

Yes, the screen can be replaced. The screen is comprised of 3 screens. The Fresnal Screen (inner screen), Lenticular Screen (middle screen), and the Protective Screen (outer screen). Please see below for links to these items.

Replacement Screen (need all 3 to complete screen assembly)

  1. Fresnal Screen
  2. Lenticular Screen
  3. Protective Screen

Mar 25, 2008 | Samsung HCP4252W 42" Rear Projection...

1 Answer

Spots on screen


If it looks fluid it's more likely something like windex or whatever you were using to clean the outer fresnal screen with got between the fresnal and lenticular screens. There are actually two screens there sandwiched together...
Bill

Dec 09, 2007 | Hitachi 57F500 57" Rear Projection...

1 Answer

Broke screen


There are actually two screens in that unit sandwiched together. The fresnal screen is Toshiba p/n# 23430635 about $165.00 plus shipping and the lenticular screen used to be Toshiba p/n# 23430634 but after two substitutions is no longer available...
Vance Baldwin is about the only outlet I'm aware of that carrys the fresnal screen at a reasonable price, just login as a guest and follow the directions to research the parts. www.vancebaldwin.com

Have a good day!!
Bill

Nov 25, 2007 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 50a60 cracked screen


i have just experienced the same myself, what you need to do is find a tv the same size, it doesnt have to be the from the same manufacturer, although it helps if you can get the same, as all lenticulars do the same job.

The outer screen is called the Lenticular, and the inner is called the fresnal, depending how bad your lenticular is cracked will determine if your fresnal has gone also, the only real way of knowing is when you take it apart to change it, (Dead Easy).

they are quite close together, but dont be afraid of trying, i have never changed one before, but i did it in about forty minutes and i dont know the first thing about tvs and now it is as new.

to change it, all you have to do is unscrew the front of your tv, from the surrounding screws at the back of it, once you have done this there are four or five small screws that hold the front of it up, take these out and your front will come off complete with lenticular and fresnal.

place it face down on a soft surface, so as that you are looking out of the inside of your screen, and you will see the fresnal.

they are held together with four brackets, one on each side of the screen.

unscrew the brackets, and take the fresnal off, then the lenticular.

put your new lenticular in, then the fresnal on top of that, and then secure it together again by screwing the four brackets back on.

it really is that simple, do not let these TV repairmen, scare you into buying a screen from them and charge you an extortionate amount of money to fit it.

im not sure if plexiglass will work, i was quoted £160+VAT for my screen from Toshiba, so what i did, i went on Ebay and found a full tv that was for spares or repairs, and paid £26 for it, and it is just as it was before.

One thing you must not do when attemting to change it, and that is to be scared of attempting it, because once you have done it, and at a fraction of the cost, you like me will curse the people who make a living out of overcharging people for such an easy job!!!!


Good Luck, and hope this has helped..


Doolb

Aug 26, 2007 | Toshiba 50A60 50" Rear Projection...

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