Sony VPL-HS50, any viewing (TV, DVD) a spread of blue appears on various parts of the screen, generally contained to the sides but from top to botom. Just recently a large yellow blotch appeared in the middle of the screen - projector is +6 years old. Thanks

It must be a problem with electric connection. you should check whether it is OK or not. If it is okay, read instruction manual.

Is the buld u changed right and in working condition.please clean the optic lens and image CRT board which ( Scanner image board) to see if the issue remaisn or nott

Blue blotches spreading over the screen are failure of the optical block

contact Sony to see if you are eligable for a free repair.

Sony will cover the cost of the optical block repair (parts and labor) at no charge through December 31, 2008 for 2004 Model Year Grand WEGA™ Televisions with the blue spot problem.

Models: KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955, KDF-60XS955, KF-42WE620, and KF-50WE620

http://esupport.sony.com/US/perl/news-item.pl?news_id=
Read more: Help from Sony for LCD rear projection with blue spots - Home Theater Forum - Home Theater Systems - HomeTheaterShack.com http://www.hometheatershack.com/forums/sony/5351-help-sony-lcd-rear-projection-blue-spots.html#ixzz0gm8a3718

Don't bedeterred by the dating of this announcement, it is a manufacturing fault and they have been pr5etty good to a lot of people with the same problem.

Please rate my help++++Thanks for using FIXYA

Its your blue polarizer going bad. This happens over time due to the excessive heat generated in the projector. The main problem is that your projector has organic LCD panels that degrade over time and in turn degrades your blue polarizer. The same thing happened to my sanyo Z2. It took 5 years for it to show on my Sanyo because I only use the projector for sports and movies. not daily tv watching. In any case, it isnt worth it to spend the money ti fix it...jut put tat towrds a new projector. The latest crop of LCD projectors almost all use in-organic LCD panels that last much longer. Hope this helps.

bad optical block call sony

Turn on projector and Press following button on remote in following order for less then 5 seconds..

RESET, <==, ==>, ENTER.

Above procedure is written in user manual page-49

If you need user manual of VPL-HS50, click Sony Support.

Hello,

• Set the projector in standby mode.

• Press the following buttons on remote control in following order for less then five seconds each...

• RESET,

• <=== ,

• ===>,

• ENTER

Lamp timer is reset now.

This is also mentioned in user manual page 50
Thank you.

I also have the same problem -- the fix is to replace the optical block ( Internal lamp engine ) which is a $1,100 part. I just purchased a used projector for half the price of the part.

My VPL-HS51 just started doing the same thing. There's a lot of similar reports out there and they all end up at the same bottom line - the problem is due to a design defect in the 'prism block' (LCD panel) and the only option, other than to throw it away or sell it for parts, is to pay Sony about $2300.00 to fix it. Good luck!

A warning in the manual was given as to be carefull when using this projector with games as some parts of the screen will not move, just like if you watch Tv on it and there is a channel logo in one corner that doesn't move! It burns the display like it would on a pc monitor if no screen saver set. This is not a problem you can fix, that is perminant damage to the lcd in the projector!! S Platt