Bike Cluster PIC16F946 Diagram for UPA Help

[sylver989]

Hi i have 3 Bike cluster all the same i want to copy the lower KM to the other 2.
I cant find anywere the diagram for Upa usb i made some tries so to make it easy i removed chip
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The best i got in reading is this

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Someone that worked in these MCU PIC16F946 and UPA can give a help finding diagram

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Thanks