High Def Forum - Your High Definition Community & High Definition Resource

Go Back   High Def Forum - Your High Definition Community & High Definition Resource > High Definition Viewing Mediums, HDTVs > Rear-Projection TVs
Rules HDTV Forum Gallery LINK TO US! RSS - High Def Forum AddThis Feed Button AddThis Social Bookmark Button Groups

Rear-Projection TVs CRT, DLP, LCD, LCOS RSS - Rear-Projection TVs

Mitsubishi WD-73727 Flickering/color displacement

Reply
AddThis Social Bookmark Button
 
Thread Tools
Old 09-03-2010, 10:01 AM   #16
My plasma is High Def.
 

Join Date: May 2010
Posts: 6
Default

I solved this, and made a DIY guide. Post 3
bishop8000 is offline   Reply With Quote
Old 09-03-2010, 10:02 AM   #17
My plasma is High Def.
 

Join Date: May 2010
Posts: 6
Default

I solved this, and made a DIY guide. Post 4
bishop8000 is offline   Reply With Quote
Old 09-03-2010, 10:03 AM   #18
My plasma is High Def.
 

Join Date: May 2010
Posts: 6
Default

I solved this, and made a DIY guide. Post 5. Now I can post the link.
bishop8000 is offline   Reply With Quote
Old 09-03-2010, 10:04 AM   #19
My plasma is High Def.
 

Join Date: May 2010
Posts: 6
Default

I solved this, and made a DIY guide. Enjoy!

http://rapidshare.com/files/41685681...Solved.pdf.htm
bishop8000 is offline   Reply With Quote
Old 10-13-2010, 06:00 PM   #20
What is HD?
 

Join Date: Oct 2010
Posts: 1
Default Thank you and confirm symptoms

Bishop8000,
Thank you for all the work!
I don't have the flickering but have skin tones that are red/blue showing like a watermark...blotchy.
This can also happen on sky backgrounds.
Oranges are often pink.
Sound like the symptoms are the same as the ones solved by your cleaning plan?
Thanks for your help.
clarets2 is offline   Reply With Quote
Old 11-28-2010, 10:22 AM   #21
My plasma is High Def.
 

Join Date: Dec 2005
Location: Santa Clarita, CA
Age: 43
Posts: 8
Default

I have the same problem. I had my optical engine replaced under extended about 2 years ago. It just started going bad again...3 weeks after warranty expired.
pipergca is offline   Reply With Quote
Old 12-01-2010, 10:23 PM   #22
A couch and an HDTV to go please.
 

Join Date: Oct 2010
Posts: 10
Default

Bishop 8000, that is excellent work. well done !
I'm not sure this will help my problem, but i'll need it one day.
Kiwiaudio is offline   Reply With Quote
Old 12-10-2010, 05:39 PM   #23
What is HD?
 

Join Date: Dec 2010
Posts: 1
Default 73727 for 5 years

I bought my TV 5 years ago....and completely love it, when it works. I bought the extended warranty (3 yrs), and glad I did. Year three I had the light engine kit replaced under warranty.....and replaced a bulb a year after. Had the flickering problem yet again and contacted the factory......after paying for a tech to look and confirm the problem (tv works fine for an hour or more than flickers)...I have to admit the customer service took care of me and for a real minimal cost upgraded me to the 73738 new model (3D). I did buy the extended warranty again, hope this one lasts longer. There has been enhancements to their line and manufacturing to resolve this issue. If you have the original receipt and especially have had work on it before....contact them. This is a known problem.
AZBiff is offline   Reply With Quote
Old 05-24-2011, 01:04 PM   #24
What is HD?
 

Join Date: May 2011
Posts: 1
Default

You posted that you had made a DIY guide to fix "needs a new light engine. The picture pulses almost like a strobe light effect just not as severe. All the colors are fine everything works. " I am having that problem with our 5 yr old Philips 50PL9126D. It pulses in the white/light areas after the set has been running for about an hour. I tried the link you posted but it appeared to take me to a site that I had to pay for. Is there a way to get this guide from you?
fandetti is offline   Reply With Quote
Old 05-24-2011, 03:43 PM   #25
Former Super Moderator
 
Loves2Watch's Avatar
 

Join Date: Aug 2007
Location: In Flux
Posts: 20,284
Default

Quote:
Originally Posted by fandetti View Post
You posted that you had made a DIY guide to fix "needs a new light engine. The picture pulses almost like a strobe light effect just not as severe. All the colors are fine everything works. " I am having that problem with our 5 yr old Philips 50PL9126D. It pulses in the white/light areas after the set has been running for about an hour. I tried the link you posted but it appeared to take me to a site that I had to pay for. Is there a way to get this guide from you?
When you get to that site look at the right side and click the button that reads "I want to wait". A countdown timer will appear and when it reached 0 you can download the file free of charge...
__________________
It's always time for pie
Live everyday as if it was your last and plan on living forever...
Loves2Watch is offline   Reply With Quote
Old 06-26-2011, 01:48 PM   #26
What is HD?
 

Join Date: Jun 2011
Posts: 1
Thumbs up

Quote:
Originally Posted by bishop8000 View Post
I solved this, and made a DIY guide. Enjoy!
Great guide - It completely solved my problem! Many thanks.

I'd add one part to the guide though. When reinstalling the cleaned Optical Engine assembly into the TV, my "HAL9000" lens got caught in the foam rubber gasket that is supposed to block air flow around the lens. When I turned the TV on, there were large black areas at the top of the picture. Luckily, I remembered that the engine went into its slot with a lot of difficulty and that the foam rubber was hanging down when I first slid it in. I didn't want to unplug and replug all the electrical connections, so I removed the top-rear part of the TV that covers the large trapezoidal mirror. I popped the mirror out, being careful not to put fingerprints on the mirror glass. It just tips out of the TV frame. I took a small piece of wood and pressed the foam rubber gasket back into place, so that it did not block the lens. Popped the mirror back in and put the top-rear cover back on and everything worked fine - no more black areas.

My picture is now a lot brighter than it has been in quite a while (even with a new bulb). I ran the TV all day with no psychedelic colors and flashing. I couldn't be happier!

I think that some folks with a splotchy picture might not have cleaned the color wheel very well. I used a very bright (halogen) bulb and really worked on it with a Q-Tip and then with the cloth that came with my eyeglasses. It was a royal PITA to get all the smudges and dust off the thing, but I ended up with a very clean wheel. I don't see any splotching on my picture.

If you are at all mechanically inclined, I highly recommend this guide for the WD-73727!
skydvrz is offline   Reply With Quote
Old 07-07-2011, 10:36 AM   #27
What is HD?
 

Join Date: Jul 2011
Posts: 1
Default

I followed the guide, and my tv looks great for 20 minutes but then flickers and shuts off. Is this because I removed the foam part that got in the way of getting the parts back into the tv? I'm an idiot for throwing it away.
nukenuke is offline   Reply With Quote
Old 12-26-2011, 11:14 PM   #28
What is HD?
 

Join Date: Dec 2011
Posts: 1
Default

Hello Bishop 8000. I've been having one bad day after another with my Mitsubishi Wd 73727 color blotting and mild distortions and it started getting worst over a 3 month period. The color hasn't been good for actually over one year.
Picture wasn't sharp, it was blurry and as you get use to more and more poor quality, you begin to think it's normal. Well for all this week, it really took a turn for the worst. By Christmas day, we had enough and searched the internet for a cure.
We came upon your cure and were very impressed with the quality and exact procedure that seemed to match our problem. Your pictures are dynamite.
My son and I decided to attempt a repair using your exact step by step process using your instructions. The results turned my 73 " Mitsubishi into a brand new picture. It looks the same as the day the store delivered and set it up. It is beautiful. I have never attempted to open a TV ever in my life. I have no electronic skills and I assure you it looks brand new.
It's a real pleasure to see someone provide such a cost saving service as you have. I really appreciate your integrity and willingness to share your knowledge. Thank you very, very much. "Merry Christmas." Bob Lewis, Ventura, CA.
boblewis is offline   Reply With Quote
Old 02-26-2012, 07:40 PM   #29
A couch and an HDTV to go please.
 

Join Date: Jan 2011
Posts: 11
Default

Do i need to register to get the repair guide?

tinner

Nevermind i found it on another post.

I had it before but cant find it on the new computer

Last edited by tinner105; 02-26-2012 at 07:49 PM.. Reason: update
tinner105 is offline   Reply With Quote
Old 03-25-2012, 08:03 PM   #30
A couch and an HDTV to go please.
 

Join Date: Jan 2011
Posts: 11
Default photo interrupter

Where is the photo interruper located in the light engine assy.?

thanks
tinner

The reason im asking is because after i did the cleaning of the light engine it worked fine for a little over a year.
And now it's real bad.
Starts out with skin tones that are red/blue showing like a watermark...blotchy
backgrounds are rainbowed.
the the color goes almost black and white but most things will be purple
then it starts skipping.

So i did the clean up again and even left off the entire back cover and its still the same.

So i know liberator21 was talking about changing the photo inerrrupter to solve some problems, don't know if my new problems might be fixed by replacing it or do i need a new color wheel?

Thanks for looking and any input

tinner

Last edited by tinner105; 03-26-2012 at 01:00 AM.. Reason: more info
tinner105 is offline   Reply With Quote
Sponsored Links
Go Back   High Def Forum - Your High Definition Community & High Definition Resource > High Definition Viewing Mediums, HDTVs > Rear-Projection TVs
AddThis Social Bookmark Button
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 11:01 PM.



Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2004 - 2008, High Def Forum