diyAudio

diyAudio (http://www.diyaudio.com/forums/index.php)
-   Everything Else (http://www.diyaudio.com/forums/everything-else/)
-   -   Red spot spreading out on 3 lcd projection (http://www.diyaudio.com/forums/everything-else/245322-red-spot-spreading-3-lcd-projection.html)

gmphadte 5th November 2013 10:33 AM

Red spot spreading out on 3 lcd projection
 
This problem must have started when the water condensed in the 3 LCD projector due to air conditioner being switched off when the projector was off all the time.

The projector now shows a red (big) spot which goes on spreading to a circle. I have opened it but there are no optic issues. Also at power on, the condition is better.

I suspect two things,
1) One of the HTPS panel has absorbed water. Don't have any idea this can happen.
2) There are two chips with ball grid- I suspect the water below the chips is responsible.

Can I clean the pcb with deionised water and then dry it in an oven.

Anyone can guess what could be the problem...

Gajanan Phadte

JonSnell Electronic 5th November 2013 02:07 PM

Neither is responsible. I would go for the blue LCD burning due to excessive heat from an old lamp or dirty filters/fans.


All times are GMT. The time now is 07:35 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 18.75%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Wiki