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| What is this IR-type-y board doing inside of my set-top-box? |
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| CherryDT:
Does anyone have a clue what this PCB is doing in my set-top-box (behind half-transparent plastic)? It features an FPGA, a shielded IR receiver and 4 LEDs (probably IR as well). - Note that there is another IR receiver elsewhere, next to the display, so I don't think this board is responsible for receiving remote control signals (and also why would it need LEDs then). 🤔 Thank you :) -- EDIT: The device is white-labelled and marketed as "A1 Mediabox Recorder" but it seems in reality it's a TLA-5720SWFX by Advanced Digital Broadcast (sorry I should have mentioned that from the start). I wasn't able to find much information about it online. Also, some people got a weird alert about my website which hosts this image (the original link was this), so in case you trust Dropbox more, use this link: https://www.dropbox.com/s/tdznqb2uwg20cm9/2020-10-04%2019.06.46.jpg?dl=0 |
| hexreader:
Wild guess only.... Is it for detecting gestures - like X-Box does? Control your box just by moving your hands. X box uses IR emitters like that, but the receiver is an IR sensitive camera, not IR receiver. |
| Benta:
Could be for viewer presence detection. Not commonly used in Europe, but very common in the US for the Nielsen ratings. |
| ConKbot:
Repeater so you can control your TV with the set top box remote without having to program the remote? If you dump enough IR out forwards, the reflection/scattering on the far wall should be enough to signal the TV? |
| Benta:
--- Quote from: ConKbot on February 03, 2021, 09:30:27 pm ---Repeater so you can control your TV with the set top box remote without having to program the remote? If you dump enough IR out forwards, the reflection/scattering on the far wall should be enough to signal the TV? --- End quote --- Why would that function need a receiver? |
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