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LUCCA A53 Mini / DP / Vivaldi: Accessing the Main Computer (CPU)

Imported from HubSpot KB export -- 2026-08-14

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Written by Zac P

You'll need:

- Phillips Screw driver


Keep scrolling to the end of the article for updates to post-2021 S1 machines.

First, you'll need to remove the panels from your machine.

Locate the CPU attached to the right side of the machine.

LUCCA-A53-Main-CPU-Access

Remove the three screws fastening the CPU onto the frame of the machine.

LUCCA-A53-Main-CPU-screw-fastening

Remove the regulator/rectifier from the top of the CPU, pushing it off to the side.

LUCCA-A53-Main-CPU-triac-removal

Pull the CPU box out through the back of the machine, careful to put all pressure on the casing of the box. It will require some wiggling and pulling wires aside, but it will pull out!

LUCCA-A53-Main-CPU-removal
LUCCA-A53-Main-CPU-half-out

Once out, you can remove the three screws holding the outer box casing together.

LUCCA-A53-Main-CPU-removal-1

Open up the CPU like so, and inspect your wiring, removing it if need be.

LUCCA-A53-Main-CPU-open


UPDATE: Post-2022 Lucca A53 and Vivaldi II machines now feature an updated Universal S1 Main Computer equipped with Bluetooth functionality. Below you'll find photos showing what that board looks like and how to set it up.
La Spaziale S1 Main Computer

La_Spaziale_main_computer_diagram


LA_SPAZIALE_S1_MAIN_COMPUTER_01-1



Lucca_main_board_DIP_switches




If you have any further questions, contact us at [email protected]

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