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Began
Joined: 31 Dec 2009
Posts: 32
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| Posted: Thu Oct 06, 2011 2:34 am Post subject: Sony G70 Red Tube Problem |
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Hi,
Last night my G70 after about half an hour in operation suddently the red become blooming. ( or don't know how to describe) When I switch to test pattern the red line is so much thicker and fater. It go over the green and blue.
This morning when I switch on everything back to normal.
May I know what's cause this so that I can start looking for the parts?
I believe it will happen again and next time won't be so lucky?
Is it the neck board problem? BTW only the red tube.
Cheers
Began
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mcarter00
Joined: 25 Oct 2011
Posts: 1
Location: Iowa
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| Posted: Tue Oct 25, 2011 11:42 pm Post subject: |
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I have this same problem on a G70 I just bought, except it is constant and on the BLUE tube.
_________________
-Michael
Grid Sound and Screen
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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 Oct 26, 2011 12:16 am Post subject: |
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You need to determine if you're losing focus or convergence in each case. If the focus is off, you most likely have a focus board issue, if it's convergence, the convergence board is most likely flaking out.
Convergence boards fail far more often than focus boards, but I have had focus boards die too. I can repair or test either one.
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Fri Oct 28, 2011 3:58 pm Post subject: |
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| Curt Palme wrote: | | You need to determine if you're losing focus. |
should be able to switch the plugs the focus board between tubes and see if the problem follows no? Can't remember if they're long enough, , been a while since I popped the hood one one of these 
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Phil Smith
Joined: 08 Mar 2006
Posts: 7717
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| Posted: Fri Oct 28, 2011 7:36 pm Post subject: |
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If the problem was gone this morning, maybe reseating all the boards and connections would fix it? 
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