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Hi all,
I have stripped my Benq FP591, and am building a frame that will support both the monitor and circuit boards. I remember reading threads about grounding all boards, but then I also remeber reading a post or two that said do not ground anything. And now I find myself unsure about what to do next.
I will continue searching for a concrete answer, but if anyone can chime in, it would be greatly appriciated.
Thanks,
Rhino
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Question about monitor grounding Help with FP591
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#2
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Posted 31 January 2005 - 09:51 PM
You won't need to perform any grounding. Stripping BenQ FP591
#3
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Posted 31 January 2005 - 09:52 PM
Grounding yes in terms of DC voltage. This is not to be confused with the ground within your ac wiring. In DC circuits, the circuitry sometimes utilizes a common ground. In this scenario, a grounding frame or grounding bar is utilized to connect the - side of the circuitry so that each connection needing a - side connection does not have to run all the way back to the source of the power. I.e. Your car batter has the negative side connected to the frame of your vehicle. So, anytime you add an accessory, you need power from the battery and a ground to the frame.
So, the best way to ensure proper grounding on an LCD is to take note of every point on the LCD circuity that is in contact with the metal frame PROVIDED THE METAL FRAME IS A COMMON GROUND. The most dependable method is to modify the frame that the circuitry is already mounted on.
So, the best way to ensure proper grounding on an LCD is to take note of every point on the LCD circuity that is in contact with the metal frame PROVIDED THE METAL FRAME IS A COMMON GROUND. The most dependable method is to modify the frame that the circuitry is already mounted on.
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Posted 01 February 2005 - 08:49 AM
Great Rhino! Scubasteve2365's ground posts are completely correct. Most of the time when electronics are prototyped all of the commons are laid out through the boards with ground planes flooding and cabling without the need for the chassis. Actually the chassis grounding is more for electromagnetic interference shielding.
It's fine how it is. Just like the Benq FP591 leave it in the chassis and don't ground anything to be safe. You can nibble out any part of the chassis you don't need and fasten it to a separate assembly that holds the LCD if need be.
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Im using my lcd in the metal frame,, should the frame be grounded to something or is it fine how it is?
It's fine how it is. Just like the Benq FP591 leave it in the chassis and don't ground anything to be safe. You can nibble out any part of the chassis you don't need and fasten it to a separate assembly that holds the LCD if need be.
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