[TechAssist] Re: RCA P46921 PROJO, need to replace screen and "mirror" 1999 model.
- From: "J Silverman" <greentron@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 25 Mar 2004 13:05:47 -0500
Maybe it has no significant effect on this application but there is a
difference between a front surface mirror and a rear surface mirror. With a
rear surface mirror there is a lower efficiency as some of the light gets
absorbed or scattered in the two passes through the material, and there is
always some reflecton from the front surface too, which creates a faint
ghost image.
Jerry Silverman
Greentron Inc
4 Newland Ave
Greenville SC 29609
864 232 3889
Fax 271 2080
mailto:greentron@xxxxxxx
----- Original Message -----
From: "Kenneth M Smith" <gulftech@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, March 24, 2004 8:49 PM
Subject: [TechAssist] Re: RCA P46921 PROJO, need to replace screen and
"mirror" 1999 model.
> Jeff,
>
> I have no argument regarding the mirror, providing it is placed at the
> same focal length.
>
> However, let's talk about the lenses. The lenticular lens is no big
> deal, but it could be cut from only one side--equal amount being
> unnecessary.
>
> The fresnel lens--I am a bit concerned about. Being ground in concentric
> circles, it would have to be cut an equal amount on each side, but would
> it work? I have never paid that close of attention to that lens, but if
> the circles extend fully to each side, I would have to conclude that
> there would be distortion on both the left and right extremes.
>
> This is an academic argument, since I have never tried to cut these
> puppies and have no intention of trying it. This has been discussed
> before on TechAssist, but I don't remember the process to cut down a lens
> without destruction.
>
> I have sold screens to customers where the exact size was slightly
> different. One had to modify the frame to accommodate the new screens,
> but never where the screens had to be cut.
>
> Your thoughts are most welcome.
>
> Regards,
>
>
> Ken Smith
> Gulf Technical Services
> 3034 Gulf Breeze Parkway
> Gulf Breeze, FL 32563
> 850-934-8324 (voice) 850-932-0819 (fax)
>
> On Wed, 24 Mar 2004 19:56:12 -0500 "Intrepid Video Support"
> <support@xxxxxxxxxxxxxxxxxx> writes:
> > Kevin,
> > Yes, you can use a regular mirror. I suggest an acrylic mirror as
> > they are lighter than glass. If this is
> > anything like the 169's, you can have a glass place mount the mirror
> > in the existing frame for about $50.
> > The lens, you can use, but you have to cut the exact same off each
> > side.
> >
> > Jeff Dougherty
> > Intrepid Video TV/VCR
> > 263 S Front St
> > Steelton PA 17113
> > fax...717-564-4952
> > www.intrepid-video.com www.tech-repair.net
> >
> > ----- Original Message -----
> > From: "Kevin" <kevintv@xxxxxxx>
> > To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, March 24, 2004 5:51 PM
> > Subject: [TechAssist] RCA P46921 PROJO, need to replace screen and
> > "mirror" 1999 model.
> >
> >
> > This 46" RCA has a broken screen and torn "mirror". The "mirror" is
> > not
> > a mirror but is a piece of shiny tin foil. Can this be replaced
> > with a
> > real mirror, or do I have to use the original RCA part?
> >
> > Also, I have a used NEC screen that is a little bit bigger than the
> > RCA
> > one. Can this be cut down and what is the best way to trim it?
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
> >
> >
> >
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