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Discussion Starter · #1 ·
...And it's driving me crazy!! I have tried every res. known to man, on

this old(but in good shape) Barco Data HR. But no matter what, the image

is painted twice on each tube. It locks perfectly onto the signal.


What am I to do? I really hate to quit on these problems.


Nicholas
 

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It sounds like you're far beyond this point already, but...


You're not feeding it an interlaced signal, are you?


- Chris
 

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Discussion Starter · #3 ·
No, from my PC with a Radeon9000 card.(and I did remember neg. sync)


But thanks,


Nicholas
 

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I'm by far no expert, but, if you're using the s-video (are you?) isn't that interlaced? If someone were to connect their projector with either RCA video or S-video they'd get an interlaced signal since a TV is interlaced? Just wondering...
 

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Discussion Starter · #5 ·
I'm using VGA->RGBHV BNC's....


Nich
 

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Nich,


My only experience with a Data HR was one I had briefly maybe two years ago. I fed it an RGBHV signal from one of the original DVDO line doublers without any problems. It sounds to me like you're feeding it an interlaced signal, but the projector's vertical sync isn't properly locking? So the only thing that comes to mind is something with the sync signal.


How about the sync level DIP switch on the input RGB board? Maybe its set to 4 volts?


Are you using one of the small control boxes or an RCVDS to control the projector? Have you tried the fast/slow sync switch?


Mark
 

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Discussion Starter · #7 ·
"How about the sync level DIP switch on the input RGB board? Maybe its set to 4 volts?"


Where is that located? And yes, I use one of the small beige boxes on

the back.


Nich
 

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Discussion Starter · #8 ·
By the way, I pulled in my BD600, without changing, and the picture

ran perfect. Now I know it's the Data HR. Maybe there's some secret

pot I haven't seen....
 

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Nich,


The 1V/4V sync DIP switch is right next to the RGBHV/RGBS select sync DIP switch on the input analog RGB board 7611145 which is the same board as the BD600 has according to the Barco spreadsheet. After re-reading your other thread on this projector I wonder about that other DIP switch's setting as well.

http://www.avsforum.com/avs-vb/showt...hreadid=243976


If those two DIP switches don't help, once again according to the Barco spreadsheet several of the boards are common with the BD600 and you might swap for testing purposes where you can actually confirm an exact part number match.


Now, after reading the previous thread again, do you have two pictures one on top of the other or two side by side?


Mark
 

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Uh oh. I'm going to have to alter that last post of mine. It isn't an RGBHV or RGBS DIP switch, its a "blue in green" DIP switch. So forget that portion. By the way, if you look at the BD600 installation manual it shows the 7611145 input board and the DIP switches.


When you ran this signal into your BD600 did you still combine the H & V and input it into the S input?


Mark
 

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Hi Nich


If you can locate witch board is malfunctioning, maybe I can help you. You have PM


Koldby
 

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Usually if you get a double image, image that is side by side, the horizontal oscillator is running at exactly half the frequency it should be. I'd start looking there. I'm no Barco tech, but there must be a pot for adjusting the Horizontal oscillator, or the circuit that senses the input frequency and switches the oscillator to the appropriate speed.


Marc
 
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