GLK240-64-25 Keypad Power

LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT Series

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LinusDillon
LCD?
Posts: 5
Joined: Mon Mar 23, 2009 6:17 pm

GLK240-64-25 Keypad Power

Post by LinusDillon » Mon Jan 18, 2016 9:16 pm

Hi,

The manual states that keypad pin 12 can supply either GND or 5V, based on the jumper "to the right of the keypad connector". However I'm unable to locate said jumper - where is it?

Thanks.

Daniel Divino
Matrix Orbital
Matrix Orbital
Posts: 98
Joined: Thu Sep 24, 2015 9:38 am

Re: GLK240-64-25 Keypad Power

Post by Daniel Divino » Tue Jan 19, 2016 10:16 am

Hello Linus,

To toggle the voltage supply on pin 12 you'll have to place a jumper on R29 or R31, both of which can be found to the right, and a little bit above the keypad header. By placing a 0 ohm resistor/jumper on R31, pin 12 supplies 5V. You can toggle pin 12 to GND by moving the jumper to R29. Keep in mind, only one jumper pad can be occupied at a time. If R31 and R29 are occupied, you will create a short.

-Daniel
Daniel Divino
Technical Support
Matrix Orbital

LinusDillon
LCD?
Posts: 5
Joined: Mon Mar 23, 2009 6:17 pm

Re: GLK240-64-25 Keypad Power

Post by LinusDillon » Tue Jan 19, 2016 4:17 pm

Thanks! Just what I needed to know.

May be an idea to add that to the manual.

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