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jaz50y
Joined: 06 Nov 2006
Posts: 42
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| Posted: Sat Apr 27, 2013 2:00 pm Post subject: Barco Graphics 808 picture vanished |
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My old, Palme-refurbed, Eisemann-modified, and heretofore reliable Graphics 808 suddenly winked off last night. Kept running, no smell or heat or other indication of problem, just no picture whatsoever. I have no idea where to start.
_________________
Doug
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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: Sat Apr 27, 2013 2:11 pm Post subject: |
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Check the red LEDF on the EHT board:
http://curtpalme.com/Barco808_Layout1.shtm
(labelled high voltageéG2 board in he above pix.)
You can see the red light at an angle through the back grille. A bit tough to see, but it`s there. If the image is on, the light will be off, and if the set is in HV failure mode, the light is usually on. There`s lots of other faUults that can cause a no picture condition, but that`s the most common one.
I`m out of town until May 6, but check emails once a day while on the road.
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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: Sat Apr 27, 2013 2:12 pm Post subject: |
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BTW, I don`t suppose you`re located in the LA or Phoenix area, are you. That`s where I am right now..
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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: Sat Apr 27, 2013 2:12 pm Post subject: |
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BTW, I don`t suppose you`re located in the LA or Phoenix area, are you. That`s where I am right now..
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jaz50y
Joined: 06 Nov 2006
Posts: 42
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| Posted: Sat Apr 27, 2013 3:32 pm Post subject: |
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I am, of course, in Princeton, NJ. I did finally manage to locate the led, and it is on and it is red.
_________________
Doug
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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: Sun Apr 28, 2013 5:28 am Post subject: |
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Most likely you need an HV quadrupler, but it's best to send me yours first to make sure it's bad., I just bought 12 in LA, so I've got good stock when I get back. Email me at curtpalme at shaw.ca and I'll send you instructions how to send them in.
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