No USB. It looks like a test/programming port for manufacturing.
Can anyone identify what the opto-sensor is used for? It is on the top side of the LED/Microphone board and can be seen in the second photo in the gap of the gold on the circumference.
Any chance you can identify for us the two power transistors on the top side?
Any available info on the display besides the basic specs...manufacturer, model, connections,..?
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