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G70 "B" board color wiring question

 
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atomiccow



Joined: 11 Jul 2009
Posts: 89


Posted: Thu Sep 16, 2010 9:07 pm    Post subject: G70 "B" board color wiring question

I decided to send my "B" board in for repair. But when I pulled it out I noticed the "BA" sister board which rides on top was partially dislodged...unplugged from the "B" board. So now before sending it I have to put it back in to make sure that wasn't why it was malfunctioning in the first place. Unfortunately I didn't photograph the card before unplugging the six mini hv-looking cables.

I was hoping someone could tell me what color goes where. The lables are
BK GK RK
BG1 GG1 RG1

Wire colors available are
Red, Green, Blue, White, Yellow, Warm orange

Sorry to be so pathetically hapless.
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atomiccow



Joined: 11 Jul 2009
Posts: 89


Posted: Fri Sep 17, 2010 1:40 am    Post subject:

If it helps I think the green goes with the yellow, the blue with the white, and red with the orange.
So maybe mostly I just need to know whether to put the red green and blue on the "K" or the "G1"

Maybe G1 stands for ground?
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CIR Engineering



Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany

Posted: Fri Sep 17, 2010 1:56 am    Post subject:

atomiccow wrote:
If it helps I think the green goes with the yellow, the blue with the white, and red with the orange.
So maybe mostly I just need to know whether to put the red green and blue on the "K" or the "G1"

Maybe G1 stands for ground?

Don't do this wrong. I am pretty sure that on the G70 one has a negative voltage and one has positive. G is not ground here, it is the inverse of the video signal which is K. These are low voltage at the B, but running them backwards is not a good idea...

craigr

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CIR Engineering



Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany

Posted: Fri Sep 17, 2010 2:07 am    Post subject:

I am too sleepy to check, but I think those cables go directly to the neck cards. You could open the hatch and look at the neck cards to see which one goes where. They will be labeled the same at the neck cards (K and G1).

craigr

_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying Wink
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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atomiccow



Joined: 11 Jul 2009
Posts: 89


Posted: Fri Sep 17, 2010 2:09 am    Post subject:

CIR Engineering wrote:
atomiccow wrote:
If it helps I think the green goes with the yellow, the blue with the white, and red with the orange.
So maybe mostly I just need to know whether to put the red green and blue on the "K" or the "G1"

Maybe G1 stands for ground?

Don't do this wrong. I am pretty sure that on the G70 one has a negative voltage and one has positive. G is not ground here, it is the inverse of the video signal which is K. These are low voltage at the B, but running them backwards is not a good idea...

craigr



Thanks for the caution. I would have blowed it up if I did what I followed my best guess.
I think I have my answer but it still would be nice to confirm before committing.

Based on this picture pf the Main input board found on Curt's quite awesome G70 Layout site


It appears the green goes on the innermost clip labled GG1 and the yellow goes on the outer GK clip. That is the exact opposite of what I was thinking.
So based on this I assume I would put the red green and blue on the G1s and respectively orange yellow and white on the "K" clips.[/img]
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atomiccow



Joined: 11 Jul 2009
Posts: 89


Posted: Fri Sep 17, 2010 2:16 am    Post subject:

CIR Engineering wrote:
I am too sleepy to check, but I think those cables go directly to the neck cards. You could open the hatch and look at the neck cards to see which one goes where. They will be labeled the same at the neck cards (K and G1).

craigr


I wouldn't want you to go to that much trouble. I do know they go to the neck cards. I can always open it up and check. That's a good strategy. I've probably resisted opening because my room is quite dark my eyes are over 40 years old and the projector is inverted.
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perisoft



Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY

Posted: Fri Sep 17, 2010 3:22 am    Post subject:

atomiccow wrote:
my eyes are over 40 years old.


Wow. How old is the rest of you?







Razz

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atomiccow



Joined: 11 Jul 2009
Posts: 89


Posted: Fri Sep 17, 2010 3:34 am    Post subject:

I'm only 22. My dad died young when I was five. He willed me his eyes. They were too big for my head at first. I pretty much could only look straight ahead. My friends nicknamed me "Bug". About four years ago I grew into them and they have been working good since. Except I need reading glasses. Smile
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