Epson 8350 Bulb Replacement and now Picture Problem - AVS Forum
Forum Jump: 
 
Thread Tools
Old 09-05-2011, 01:06 PM - Thread Starter
Newbie
 
BLasley's Avatar
 
Join Date: Sep 2011
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Hello all,

The lamp in my 8350 blew and I ordered a replacement, installed it and turned the projector on. The lamp lights up but now the upper half of the image has a splotchy, reddish-magenta, granite-looking pattern overlaying the image.

I cleaned the lamp/lens area with compressed air and the problem persists.

I'll try to attach an image i made in photoshop that looks almost exactly like the projected image.

Any ideas?

Thanks,
Bryan
BLasley is offline  
Sponsored Links
Advertisement
 
Old 09-05-2011, 02:39 PM
Newbie
 
Burdman27911's Avatar
 
Join Date: Nov 2006
Location: Central North Carolina, USA
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Is that image a picture of the screen or just a photoshop?

Have you tried cleaning the LCDs inside the projector? Just wondering if it could be dust blobs that got in there when you replaced the bulb.
Burdman27911 is offline  
Old 09-05-2011, 02:59 PM - Thread Starter
Newbie
 
BLasley's Avatar
 
Join Date: Sep 2011
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I used some compressed air to blow out the inside where the lamp goes and it made little difference. Is that where the LCDs are?

I made the image in photoshop as i haven't had time to get a good shot of the projected image.

The photoshop facsimile looks very similar to what's actually being projected—right down to the granite-y texture and the hard line where the splotchiness stops halfway down the image.

-bryan
BLasley is offline  
Old 09-05-2011, 09:05 PM
Newbie
 
Burdman27911's Avatar
 
Join Date: Nov 2006
Location: Central North Carolina, USA
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
If the 8350 is anything like the Panasonic AE700U I worked on, then the LCD panels require you to take the motherboard out and pull out the optical stack (or whatever you want to call it). There will be three panels (one for R,G,B) that the light goes through - you might be able to find a service manual to help with instructions on taking this out. Any dust blobs could possibly have gotten in there, but I don't know how likely it would be that it could happen during a bulb change. The blobs on my panny happened over time, not instantaneously. It still might be worth trying to clean the panels to see if it helps. If it's not the panels, then I'm not sure what needs to be changed.... hopefully others will chime in with some thoughts.
Burdman27911 is offline  
Old 09-05-2011, 11:24 PM
AVS Special Member
 
eat meat's Avatar
 
Join Date: Nov 2010
Posts: 1,560
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
that hard line isnt dust-I think some dont see it,couldnt be dust.

__________________________________________
Are you classified as human? Negative, I am a meat Popsicle.

(fifth element)
__________________________________________
eat meat is offline  
Old 02-15-2012, 07:49 AM
Member
 
webdevsam's Avatar
 
Join Date: Nov 2006
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I have the same issue. My lamp quit at 1831 hours and now the replacement produces a clean line right through the middle of the picture producing different color above and below it. Did you find any resolution.
webdevsam is offline  
Old 09-02-2013, 04:26 PM
Newbie
 
rivcyclist's Avatar
 
Join Date: Sep 2013
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
This just happened to my 8350 -- first bulb died at 1916 hours (about 2 years).
Epson sent replacement bulb, I put it in, and then the same screen split -- at first I thought there was just a line through the middle of the screen, but on "lighter" scenes you can see the whole top half is actually slightly darker, with a red or pink twinge to it. And now today the new bulb just stopped working at around 50 hours, no pop or anything the projector just went dark and then the red light started blinking at half sec. intervals. I'll call epson tomorrow and hopefully they'll honor the 90 day warranty on the bulb even though it was free.
rivcyclist is offline  
Old 05-27-2014, 07:19 PM
Member
 
kehakas's Avatar
 
Join Date: Feb 2009
Posts: 42
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
I got a new Epson lamp from B&H. I just installed it and I'm immediately getting this problem. Did any of you figure out what the issue was?
kehakas is offline  
Old 07-29-2014, 05:31 PM
Newbie
 
bdef's Avatar
 
Join Date: Nov 2011
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 10
Same problem here. Can anyone confirm the "run for 15 hours" method?
bdef is offline  
 

Tags
Epson Powerlite Home Cinema 8350
Thread Tools


Forum Jump: 

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