what causes pink ghosting? InFocus LP735

ThyDntWntMusic · 27th February 2009, 08:19 AM

any input or suggestions would be great thanks!

ThyDntWntMusic · 28th February 2009, 06:27 AM

the yellow hue in the middle of the screen is actually the projector, not the globe.

I assume something has somehow been burnt...

any ideas people?

ThyDntWntMusic · 1st March 2009, 06:49 AM

hm, that really didn't get much of a response.

Steerpike · 1st March 2009, 12:29 PM

From what the www says, this has a 3-lcd panel optical system.
There will be a systen of mirrors &/or prisms to combine the 3 images before the projection lens.

2 possible causes I'm guessing:
1) something in the optics has become displaced - was the projector bumped? You might find a physical adjustment for gross convergence.

2) the convergence electronics has gone out of alignment. There is probably a service adjustment for this - some sort of menu accessible by entering the service mode.

How you access the service mode I do not know - it could be by pressing an odd combination of buttons on the remote control - service manual would help a lot there.

ThyDntWntMusic · 6th March 2009, 10:10 PM

I got the second projector that I'd already paid for...

it also has red ghosting...

after doing a bit of research, it became apparent, that this means the projector is completely f*cked and is nothing more than rubbish..

not happy...

http://phorums.com.au/archive/index.php/t-42192.html

Steerpike · 7th March 2009, 12:24 PM

Then you've nothing to lose by physically manipulating the position of the red or magenta lcd panel to get it into the right position

27th February 2009, 08:19 AM	#1
ThyDntWntMusic diyAudio Member Join Date: Feb 2008	what causes pink ghosting? InFocus LP735 any input or suggestions would be great thanks!

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28th February 2009, 06:27 AM	#2
ThyDntWntMusic diyAudio Member Join Date: Feb 2008	the yellow hue in the middle of the screen is actually the projector, not the globe. I assume something has somehow been burnt... any ideas people?

1st March 2009, 06:49 AM	#3
ThyDntWntMusic diyAudio Member Join Date: Feb 2008	hm, that really didn't get much of a response.

1st March 2009, 12:29 PM	#4
Steerpike diyAudio Member Join Date: Jan 2006 Location: Johannesburg, South Africa	From what the www says, this has a 3-lcd panel optical system. There will be a systen of mirrors &/or prisms to combine the 3 images before the projection lens. 2 possible causes I'm guessing: 1) something in the optics has become displaced - was the projector bumped? You might find a physical adjustment for gross convergence. 2) the convergence electronics has gone out of alignment. There is probably a service adjustment for this - some sort of menu accessible by entering the service mode. How you access the service mode I do not know - it could be by pressing an odd combination of buttons on the remote control - service manual would help a lot there.

6th March 2009, 10:10 PM	#5
ThyDntWntMusic diyAudio Member Join Date: Feb 2008	I got the second projector that I'd already paid for... it also has red ghosting... after doing a bit of research, it became apparent, that this means the projector is completely f*cked and is nothing more than rubbish.. not happy... http://phorums.com.au/archive/index.php/t-42192.html

7th March 2009, 12:24 PM	#6
Steerpike diyAudio Member Join Date: Jan 2006 Location: Johannesburg, South Africa	Then you've nothing to lose by physically manipulating the position of the red or magenta lcd panel to get it into the right position

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