image inverter

[george a]

Hi all
Is anybody aware of a DIY circuit that would allow a s-video signal fed to a LCD projector to be inverted (rotated 180deg) ie: to allow use of a lcd projector tht is not designed for ceiling mount to be flipped onto its back and mounted upside down on ceiling
many thanks in advance.

George a

[haldor]

Low tech possibility, but how about a mirror?

[mrfeedback]

Hello george a,
This is not a good idea to mount a table top projector upside down because of ventilation/thermal issues.
Those arc lamps run damm hot, and the electronics are pretty cramped.

Regards, Eric.

[SushiMasterX]

you may be able to physically turn the panel around inside, depending on the mount and any cable's being connected to it.

Have to open 'er up and see.

A front surface mirror placed in front of the projector. Projector faced the opposite way of your screen.

[ap0the0sis]

I was also thinking the same thing. I recently purchased a Sharp XG-E690U from ebay for $180.00. Its give a great picture for being a 220 ansi projector ( I figured I would spend more in making one than in buying this one). I can even watch it in day time with not much color wash-out, however it wasn't meant to be hung from the celing... which is where i would like to put it. I believe there should be a way, without mirrors to mount this thing on the celing.

I can't open it, already tried. There are some screws that would release the top cover of this projector and give me access but i cant reach them witha regular screwdriver.

I would really appreciate it if someone (technician or someone) would shine some light on this subject.

thanks,

ap0the0sis

[Electro]

Find some off the shelf video editing equipment. Yes, their are schematics on how to construct one

OR

Use a computer to flip the image upside down. Its best to use a dual monitor video card. One output will be for computer related stuff. The second output will be the LCD or computer monitor that the image is flipped.

Note: An inverter will change all the colors to their opposite colors.

ePanorama.net is good start to find circuits

[Justinjay]

You could always build some kind of holder or use a ceiling mount that was designed for a TV. That way you don't have to flip it upside down to be safe.

Like a shelf, ya know?

[ap0the0sis]

Justinjay,

Please see the following pics: pretty much self explanatory...

if the projector is mounted to the roof or on a tv wall unit it will throw most of the projection image onto the ceiling since it is a table top projector. only way is to mount it and filp the image (some how)

I heard it is possible with a HTPC (Home theater PC) but i dont have one set up yet. so i need to find another method.

[ap0the0sis]

pic 2 (notice image hitting ceiling)

[ap0the0sis]

satisfactory....

ap0the0sis