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Harvey
Joined: 02 Mar 2008
Posts: 66
Location: Germany Lennestadt NRW
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| Posted: Thu Apr 10, 2008 10:28 am Post subject: Error in my Picture please look an Help |
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This Error is coming up every Time after a couple of Minutes...
It wents crom botton to Top slow and begins when it is gone ofer the Top at the botton of the Picture..
In wich Place can i look ... i have the complete service book with the Layout.
The Pictures are sharph but i have made them without the right camera ...
For that camera there was to less light 
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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: Thu Apr 10, 2008 1:05 pm Post subject: |
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That is a hum bar. You need to lift the projector ground, or isolate the cablevision/antenna ground from the system.
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JustGreg
Joined: 07 Mar 2006
Posts: 3098
Location: Kenosha, WI
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| Posted: Thu Apr 10, 2008 2:18 pm Post subject: |
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In my younger days I went to a club outside Detroit with that unofficial name.
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Greg
"Is it ignorance or apathy? Hey, I don't know and I don't care!" --Jimmy Buffett
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Thu Apr 10, 2008 3:00 pm Post subject: |
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you sure don't have much luck with your projector 
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Harvey
Joined: 02 Mar 2008
Posts: 66
Location: Germany Lennestadt NRW
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| Posted: Thu Apr 10, 2008 6:48 pm Post subject: |
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to kschmidt2 it is not the zenith it is a PJ from my friend that i test for looking football..
And i am a idiot that i have not found that it is ground loop
Thank you all sometimes i see not the forest off the trees.. 
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.......lieber 5 mal löten als einmal.......
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Harvey
Joined: 02 Mar 2008
Posts: 66
Location: Germany Lennestadt NRW
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| Posted: Fri Apr 11, 2008 7:27 am Post subject: |
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So i have ungrounded them... nothing hapens the hum bar is in every time...
So yesterday i took a Plan an sprayed in all what i have in K75 ice Spray... 8)
An look i just wonder when i spayed in the convergenc Driver Board with 6 TDA2030H on it the hum bar was gone away 
The Picture was fine again.. 
after 2 Minutes it comes again  smal bigger and then it went again from botton to Top or back or stands still
schould i decide too change all TDA2030H or what ca make that happen...
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.....Was nicht geht läuft irgendwann...
.......lieber 5 mal löten als einmal.......
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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: Fri Apr 11, 2008 3:58 pm Post subject: |
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That's rare. Check the solder joints on the bottom of those and the voltage regulator, but I have not had a hum bar be caused by the convergence board.
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Harvey
Joined: 02 Mar 2008
Posts: 66
Location: Germany Lennestadt NRW
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| Posted: Fri Apr 11, 2008 4:44 pm Post subject: |
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I have checked the voltage and there is a diverence betwen the + and the - power 
+ 15V
- 13V i have orderd new regulator chip´s 79S15 and 78S15 i think that will fix it because the Elkos i have all changed bevore.
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.......lieber 5 mal löten als einmal.......
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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: Fri Apr 11, 2008 4:59 pm Post subject: |
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Didn't I send you a new 9-847 board? THat's the convergence power supply. Change that to see if that works.
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Harvey
Joined: 02 Mar 2008
Posts: 66
Location: Germany Lennestadt NRW
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| Posted: Sat Apr 12, 2008 9:45 am Post subject: |
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It is not this PJ. Its the Hi-Beam 550 ...
But i have now orderd the part´s they are very cheap and when i have changed them i tell you if it work´s...
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