My photos are specifically for the 57732 model. For other sizes and models, there are differences. Courtesy of amar1995, this thread shows pics of the 73732 which is completely different, even though both are the same series (732);
http://www.avsforum.com/avs-vb/showthread.php?t=1216182
I decided to do the procedure to solve the common 'halo' or 'blooming' effect with the 2007 Mit's DLP's. I believe this would also apply to the 2006 and 2008 model years. (Please correct me if this is wrong.)
What is happening is a film develops over time on one of the inner lens surfaces that creates a 'halo' or 'blooming' effect with bright objects on dark backgrounds. Similar to a power supply on a CRT going bad, hence the term "blooming".
A few members posted some photos of the procedure, but I found those to be lacking on exactly what to do and what to watch out for. This is not for a beginner. This involves removing the commonly called "light engine" and lens assembly to gain access to the problem area.
Other than going directly through the manufacture, there is at least one supplier of parts. The subject of replacing the color wheel has come up, but Mits does not list color wheels as a separate replacement part, you have to replace the whole LE. Here is a source for parts courtesy of forum member 'colour'. This is not solely for Mits;
http://www.discount-merchant.com/dlp-tv-parts-s/403.htm
A summary from two years ago on actual parts replacement costs;
For the xx627 series, Doug40 provided these four posts;
http://www.avsforum.com/avs-vb/showt...1#post20039171
http://www.avsforum.com/avs-vb/showthread.php?t=1216182
I decided to do the procedure to solve the common 'halo' or 'blooming' effect with the 2007 Mit's DLP's. I believe this would also apply to the 2006 and 2008 model years. (Please correct me if this is wrong.)
What is happening is a film develops over time on one of the inner lens surfaces that creates a 'halo' or 'blooming' effect with bright objects on dark backgrounds. Similar to a power supply on a CRT going bad, hence the term "blooming".
A few members posted some photos of the procedure, but I found those to be lacking on exactly what to do and what to watch out for. This is not for a beginner. This involves removing the commonly called "light engine" and lens assembly to gain access to the problem area.
Other than going directly through the manufacture, there is at least one supplier of parts. The subject of replacing the color wheel has come up, but Mits does not list color wheels as a separate replacement part, you have to replace the whole LE. Here is a source for parts courtesy of forum member 'colour'. This is not solely for Mits;
http://www.discount-merchant.com/dlp-tv-parts-s/403.htm
A summary from two years ago on actual parts replacement costs;
Quote:
Optical Engine: $600 + $300 dud value,
Ballast: $70 + $50 dud value,
Signal PWB: $108 + $100 dud value,
DM PWB: $191 + $150 dud value,
57" screens (both including lens tape): $188 (shipping over $50, no return).
Again, these are dealer prices. For example the LE retail cost is $1,000.
The "dud" values are the defective part returned to Mits for the value stated (just like vehicle parts). If you adjust for shipping (around $20), it might be beneficial just to keep the defective assembly for parts. I would estimate to return the LE, shipping would be at least $30. Subtract that from the 'dud' value and it now becomes $270 credit. Considering what's there, it might be of value just to keep it since you can't buy any of those parts separately.
Ballast: $70 + $50 dud value,
Signal PWB: $108 + $100 dud value,
DM PWB: $191 + $150 dud value,
57" screens (both including lens tape): $188 (shipping over $50, no return).
Again, these are dealer prices. For example the LE retail cost is $1,000.
The "dud" values are the defective part returned to Mits for the value stated (just like vehicle parts). If you adjust for shipping (around $20), it might be beneficial just to keep the defective assembly for parts. I would estimate to return the LE, shipping would be at least $30. Subtract that from the 'dud' value and it now becomes $270 credit. Considering what's there, it might be of value just to keep it since you can't buy any of those parts separately.
For the xx627 series, Doug40 provided these four posts;
http://www.avsforum.com/avs-vb/showt...1#post20039171
