Teac FF REW pcb A-4300SX

This is a huge board from the A-4300SX its dusty underneath and could do with a good clean and going over the solder if you want to put it back in service , otherwise its a super salvage board with 6 relays all the microswitches connectors etc , it was from a hardly used machine  and is quite a lump. I cannot see the PCB number straight off,