| Author |
Message |
antorsae
Joined: 16 Jul 2006
Posts: 297
|
| Posted: Mon May 26, 2008 6:37 am Post subject: Jumpy focus/geometry in Marquee 9500LC Ultra |
|
|
I was watching a movie the other day and one of my Ultras suddenly blinked (the image went black for a blink... less than a second or so) and then it came back very quickly but SLIGHTLY defocused and with slightly different geometry. I almost looks as if both the width and height had increased just a little.
This has happened already 3 times and it happens when I have had the PJ on for a while (2 hours or so). When I switch the PJ on for the first time everything is ok.
Things I've done so far:
- Verified ASR is OFF
- Re-seated chips in the CLM
- Changed C50 in the HDM for a new one
- Re-seated both the HDM and FGM
I have my Ultras ceiling mounted and opened. It may be a temperature issue.
Any ideas?
|
|
| Back to top |
|
 |
HK-Steve
Joined: 15 Jul 2006
Posts: 849
Location: Switzerland
TV/Projector: Marquee 9500, Epson 8100
|
| Posted: Mon May 26, 2008 7:18 am Post subject: |
|
|
Take your control board out,
remove the deflection processor, clean the pins,
then re-install.
Cheers
Steve
|
|
| Back to top |
|
|
antorsae
Joined: 16 Jul 2006
Posts: 297
|
| Posted: Mon May 26, 2008 7:48 am Post subject: |
|
|
Thanks Steve!
Is de-naturalized alcohol OK to clean the pins?
|
|
| Back to top |
|
|
HK-Steve
Joined: 15 Jul 2006
Posts: 849
Location: Switzerland
TV/Projector: Marquee 9500, Epson 8100
|
| Posted: Mon May 26, 2008 11:03 am Post subject: |
|
|
Yes,
you can also use contact cleaner,
Cheers
Steve
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
|
| Back to top |
|
|
Gino
Joined: 22 Apr 2006
Posts: 1363
Location: Trinity Beach, AUSTRALIA
|
| Posted: Tue May 27, 2008 5:34 am Post subject: |
|
|
Andres, I had the same symptoms. Turned out to be a faulty HVPS
Good luck diagnosing, contact Tim, go through the usual suspects, HDM, FCM, CLM
_________________
( B ) ( G ) ( R ) Blendzilla Down Under ( R ) ( G ) ( B ) - Tubes of Fury
|
|
| Back to top |
|
|
antorsae
Joined: 16 Jul 2006
Posts: 297
|
| Posted: Tue May 27, 2008 6:35 am Post subject: |
|
|
|
Thanks. I will close the PJ and see what happens!
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
|
| Back to top |
|
|
antorsae
Joined: 16 Jul 2006
Posts: 297
|
| Posted: Fri May 30, 2008 9:46 am Post subject: |
|
|
I cleaned the contacts of the deflection board and re-seated chips in the CLB again. I've watched a few more movies and the problem hasn't happened again! 
|
|
| Back to top |
|
|
|
|
