2026 Ready PCB Redesign

I have the full schematic for working legacy PCB. I need it redesigned and modernised into a new board using current components, while keeping the original board size, mounting holes and connector positions.

The old design uses PIC18F8722, FT232RL, TDA7465, video switching and RCA outputs. The new design should replace those with STM32 native USB, modern audio DSP/codec, protected coin inputs, modern power regulation, and custom firmware support.

This is not an exact clone. It is a modern drop-in replacement using the original schematics as a reference.

Key things :-
Keep:

* Board size: 168mm × 206mm
* 6 mounting holes
* USB-B position
* Existing amp connectors
* Mic input
* Coin mech interface
* IR receiver/service button
* J8 motherboard audio input

Remove:

* RCA sockets
* Video matrix
* Inverter connection
* FT232RL
* PIC18F8722
* Old EEPROM

Replace with:

* STM32 controller
* Native USB
* Modern DSP/audio codec
* Modern regulators
* Opto-isolated coin inputs
* MOSFET drivers
* ESD/reverse polarity protection