pinout for jbl esc333 surround sound infrared

This is what I’ve determined from the schematics that I downloaded re: my ESC333 Surround Sound amp – which I purchased without a remote control:

3.5mm jack
1. tip – VDD (power?) on IC201
2. ring – to ground
3. sleeve – to remote on IC201

Q still can’t find any info about the remote sensor hardware

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