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piratepowwow
Joined: 27 May 2010
Posts: 51
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| Posted: Sat Jun 05, 2010 2:11 am Post subject: Is this a modded vertical deflection board? BG 1208 |
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Since my projector is currently on the floor, I followed the install manual's instructions and removed the capacitor plug from the vertical deflection board.
I couldn't help but notice that there were all kinds of jumper wires and extra resistors soldered all over the board. Is this a mod?
The last picture is of the neck on the green tube. The green dots have a hair-thin trail to the right of them, could the yellowing on that piece of plastic in the neck be the culprit?
Thanks guys!
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piratepowwow
Joined: 27 May 2010
Posts: 51
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| Posted: Sat Jun 05, 2010 2:40 am Post subject: |
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roland@b4
Joined: 07 Jul 2009
Posts: 82
Location: Reading UK
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| Posted: Sat Jun 05, 2010 9:17 am Post subject: |
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Hi miate biggest pictures I've seen on the forum for a while.
They look like standard mods
Have a look at Curts 120* set up page http://www.curtpalme.com/Barco1208_Layout2.shtm you pretty muc see the same stuff.
These were evolution rather than mods
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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 Jun 05, 2010 1:50 pm Post subject: |
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Holy, can you shrink the images next time? 
That's normal on the deflection board, you have a very old V board, I'd go get a 7621127 which is the latest revision.
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Sat Jun 05, 2010 4:20 pm Post subject: |
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LOL, he is giving Mike Parker a run for his money.
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piratepowwow
Joined: 27 May 2010
Posts: 51
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| Posted: Sat Jun 05, 2010 9:10 pm Post subject: |
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Is there a good reason for getting an updated board? Or is it a "get another one while you can cause that one's going to blow on you" type of thing?
What is the purpose of removing that cap plug on the vertical deflection board?
I'll make a separate post about the green tube in a couple days, but could this modded vertical deflection board somehow be preventing a blue signal through port 3? Red and green are fine on port 3, but blue is a no go.
Much thanks
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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 Jun 05, 2010 9:17 pm Post subject: |
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THe later boards are more reliable, and no, the V board won't affect the video signal chain.
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Mon Jun 07, 2010 9:56 am Post subject: |
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| piratepowwow wrote: | | What is the purpose of removing that cap plug on the vertical deflection board? |
Jumper J400 from daughter board is for on axis (zero angle) projection, without it E-W correction would be disabled or will work differently I guess.
My GB1200 had also some other weird cap plugs or jumpers, but those didn't had much effect to anything. Leave those all there and don't worry about those unless you end some problems, like geometry adjustment don't have enough range or something...
| piratepowwow wrote: | | but could this modded vertical deflection board somehow be preventing a blue signal through port 3? Red and green are fine on port 3, but blue is a no go. |
Check blue on green switch (S2) position from port3 board, it should be at off position.
When on card turn blue information to green channel.
| piratepowwow wrote: | | The green dots have a hair-thin trail to the right of them, could the yellowing on that piece of plastic in the neck be the culprit?. |
No. It's electrical problem, probably bad neck card. Neck card can be swapped with other color and then you see if problem follows.
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piratepowwow
Joined: 27 May 2010
Posts: 51
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| Posted: Mon Jun 07, 2010 8:17 pm Post subject: |
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Thanks!
I fiddled with the blue in green switch, it made things greener!
The manual says that switch is for making blue text easier to read by having it display as cyan.
I also checked the jumper on the convergence board to make sure it was unplugged; it was.
I'll try switching the neckboards tonight and see if that's the culprit. I haven't been able to find any guides for doing that so I hope I don't destroy anything.
Other than that, I'm praying that the blue magically starts working on port 3 just from me fiddling with things ^_^
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piratepowwow
Joined: 27 May 2010
Posts: 51
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| Posted: Wed Jun 09, 2010 1:35 am Post subject: |
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It turns out adjusting the G2 on the green tube fixed the problem!
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