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TOKN KB16 ENCODERS
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Bloinkxp:

--- Quote from: Tiger-Heli on May 31, 2005, 04:18:47 pm ---
--- Quote from: KevSteele on May 31, 2005, 04:15:27 pm ---Tiger:

I just checked the PCB layout on the TOKN16 - I'm not positive, but it does look like it is a matrix-style grounding, and not a common ground. It may have well been the luck of the draw that the grounds I combined worked.

Kevin

--- End quote ---
Cool, thanks for checking that out, Kevin.  8)

--- End quote ---

So that means that each button has it's own ground on the PCB?
ie.

JU  JD  Jl  JR  C1  B1   B2 ... etc
GU GD Gl GR G1  GB1 GB2 ...


--- Quote ---Thanks for keeping the thread more civil, Saint  :D

--- End quote ---


Agreed.  Thanks Saint :)
KevSteele:

--- Quote from: Bloinkxp on May 31, 2005, 04:33:55 pm ---
--- Quote from: Tiger-Heli on May 31, 2005, 04:18:47 pm ---
--- Quote from: KevSteele on May 31, 2005, 04:15:27 pm ---Tiger:

I just checked the PCB layout on the TOKN16 - I'm not positive, but it does look like it is a matrix-style grounding, and not a common ground. It may have well been the luck of the draw that the grounds I combined worked.

Kevin

--- End quote ---
Cool, thanks for checking that out, Kevin.
--- End quote ---

--- End quote ---
RandyT:

--- Quote from: KevSteele on May 31, 2005, 04:48:58 pm ---I just checked the PCB layout on the TOKN16 - I'm not positive, but it does look like it is a matrix-style grounding, and not a common ground. It may have well been the luck of the draw that the grounds I combined worked.

...<snip>...

 ... but suffice it to say - you need the dedicated ground wire for each switch.


--- End quote ---

Many would consider this a pretty important "con" for the device.  What's your take on it?

RandyT
mattp:

--- Quote from: KevSteele on May 31, 2005, 04:48:58 pm ---
--- Quote from: Bloinkxp on May 31, 2005, 04:33:55 pm ---
--- Quote from: Tiger-Heli on May 31, 2005, 04:18:47 pm ---
--- Quote from: KevSteele on May 31, 2005, 04:15:27 pm ---Tiger:

I just checked the PCB layout on the TOKN16 - I'm not positive, but it does look like it is a matrix-style grounding, and not a common ground. It may have well been the luck of the draw that the grounds I combined worked.

Kevin

--- End quote ---
Cool, thanks for checking that out, Kevin.  8)

--- End quote ---

So that means that each button has it's own ground on the PCB?
ie.

JU  JD  Jl  JR  C1  B1   B2 ... etc
GU GD Gl GR G1  GB1 GB2 ...

--- End quote ---

No, it's more like a matrix:



Line 1 is connected to every even bottom pin, Line 2 to every odd bottom pin. Line 3 is acutally a different line for each set of four pins. That's a bit cluttered (and rushed) explanation, but suffice it to say - you need the dedicated ground wire for each switch.

Kevin

--- End quote ---
KevSteele:

--- Quote from: RandyT on May 31, 2005, 06:49:03 pm ---
--- Quote from: KevSteele on May 31, 2005, 04:48:58 pm ---I just checked the PCB layout on the TOKN16 - I'm not positive, but it does look like it is a matrix-style grounding, and not a common ground. It may have well been the luck of the draw that the grounds I combined worked.

...<snip>...

 ... but suffice it to say - you need the dedicated ground wire for each switch.


--- End quote ---

Many would consider this a pretty important "con" for the device.
--- End quote ---
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