Repair and disassembly guides for remote controls.

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does not communicate with devices

unit was working ok. screen still lights up ok. none of the buttons work. suspect infrared transmitter or its driver. cant locate any repair manual. i like the unit (when it works) because it has a charger but would not buy another logitech harmony - too expensive, unreliable & no repair manual.

any advice?

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I would first make "my" standard IR test

use a cell phone with a build in camera - activate the camera

point with the remote control into the camera lens and press any button on the remote

look at the cell phone screen while pressing the buttons

if you see a white flashing light - the remote control sends an IR signal.

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I'm not sure about the model you have, but I had trouble with a Harmony 880, as have many others. I wrote a guide on how to replace the IR LED's.

Guide is here.

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COL BURG will be eternally grateful.
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