![How do I repair this remote? The green on button doesn't work but if I align and use another button for it, it turns on. : r/AskElectronics How do I repair this remote? The green on button doesn't work but if I align and use another button for it, it turns on. : r/AskElectronics](https://i.redd.it/how-do-i-repair-this-remote-the-green-on-button-doesnt-work-v0-bmnxedrqo7jb1.jpg?width=3024&format=pjpg&auto=webp&s=c8f470eeb9e011e1fa662a9d45c28dd203b3bf27)
How do I repair this remote? The green on button doesn't work but if I align and use another button for it, it turns on. : r/AskElectronics
![repair - What is the black stuff on the PCB below remote control buttons? - Electrical Engineering Stack Exchange repair - What is the black stuff on the PCB below remote control buttons? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/mdlX6.jpg)
repair - What is the black stuff on the PCB below remote control buttons? - Electrical Engineering Stack Exchange
![Remote control CB beyond repair? I cleaned all with contact cleaner, no difference: some buttons work, others do not. Worth trying conductive paint on black contacts under the buttons? The closeup shows Remote control CB beyond repair? I cleaned all with contact cleaner, no difference: some buttons work, others do not. Worth trying conductive paint on black contacts under the buttons? The closeup shows](https://preview.redd.it/ffx6vbqrzbp71.jpg?width=640&crop=smart&auto=webp&s=a45c1ccf7077816193582c87bb646b27a3525364)