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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Dec 21, 2011 6:52 pm Post subject: Marquee video image issue |
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I've seen this problem before, a few years ago, can anyone remind me what board causes this? The pix occasionally blanks out as well. I can't remember what causes this, and the set isn't in my shop.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Dec 21, 2011 7:39 pm Post subject: |
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Thanks!
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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fetz
Joined: 09 Feb 2007
Posts: 7
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| Posted: Mon Apr 09, 2012 4:16 pm Post subject: |
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Hello
I have exactly the Same Problem with my marquee 9500. Watching Movies sometimes this stripes Appear.
Then i have to press Pause on bluray, Switch the CRT Off, disconnect ist from powersource and Switch it
On again.
With some luck, it comes Only onetime per Movie, sometimes i hve o to this every 15 minutes.
Can you Eplain what you did or changed to eliminate that Problem.
Thanks
Thomas
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Apr 09, 2012 4:37 pm Post subject: |
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Guys
If U7 doesn't fix it then entire DPB or CLM. I have only seen this on Ultras, we had three bad in one edge blend installation.
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fetz
Joined: 09 Feb 2007
Posts: 7
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| Posted: Mon Apr 09, 2012 4:50 pm Post subject: |
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Hi
Its an Ultra Modell 2004.
This u7 Means the Chip in that Place has an issue?
Perhaps Reseat it
Thomas
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Apr 09, 2012 5:03 pm Post subject: |
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| fetz wrote: | Hi
Its an Ultra Modell 2004.
This u7 Means the Chip in that Place has an issue?
Perhaps Reseat it
Thomas |
Hello
The chip, or tarnish on the contacts. If U7 is socketed then get a PLCC chip puller, note the orientation of the label first, then pull U7 from the socket and clean the little metal contacts, carefully so not to bend anything, reseat U7 and try firing up.
If U7 is soldered in then an entire DPB may be needed.
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fetz
Joined: 09 Feb 2007
Posts: 7
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| Posted: Mon Apr 09, 2012 5:16 pm Post subject: |
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Hi
Thanks
Just put Out the Whole clm.
U7 and u16 are the only Chips on a sockel.
I dont have a puller Here, so cant put them out
To Reseat. Now i can only press Them Down for a New Test.
Sorry for the englisch, but the German iPad with spellcheck is
Awfull writing english
Regards
Thomas[/s]
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Mon Apr 09, 2012 5:16 pm Post subject: |
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with me it was bad contacts so i had to take the entire backplane out and solder all connections and clean them with alcohol.
after this the problem went away.
i had this problem come and sometimes go randomly and sometimes not at all.
my u7 is soldered on the dpb.
_________________
1 answer always poses multiple questions.
marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Mon Apr 09, 2012 7:46 pm Post subject: |
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Just get an IC puller to have on hand. Especially if your CRT is in a damp location. Cleaning the socketed chips twice a year helps eliminate strange problems. I would also get Some denatured Alcohol and a soft tooth brush to clean the boards as well. The after cleaning the Connections Apply Some Stabilant 22. I treated my Marquees about two years ago and no connection problems since where I had them all the time before.
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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fetz
Joined: 09 Feb 2007
Posts: 7
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| Posted: Mon Apr 09, 2012 8:35 pm Post subject: |
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Hi
Just bought an IC Puller on Ebay.Now i had to wait till it arrives.
The Board itself looks like new. The CRT has less then 600h, only
in clean conditions
I pressed on the chips, the U7 didnt move, but the U16 was not
correct in its socket. one edge i was able to put some mm down.
If i put the U16 out of its socket i had to restore all may data?
Is this correct or is the memory on an other place.
Thanks
Thomas
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Apr 09, 2012 9:11 pm Post subject: |
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| fetz wrote: | Hi
Just bought an IC Puller on Ebay.Now i had to wait till it arrives.
The Board itself looks like new. The CRT has less then 600h, only
in clean conditions
I pressed on the chips, the U7 didnt move, but the U16 was not
correct in its socket. one edge i was able to put some mm down.
If i put the U16 out of its socket i had to restore all may data?
Is this correct or is the memory on an other place.
Thanks
Thomas |
There are no user memories on the DPB, you are okay.
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tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
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| Posted: Tue Apr 10, 2012 12:26 am Post subject: |
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When I've seen that it was caused by the video blanking sporadically kicking in. All the above remedies sound like likely fixes.
Scott
_________________
"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
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