Inside the M-500, M-1000, M1500 Led Sign

Carefully unscrew the controller card. Note it may only use three screws to secure it. Be extra careful when lifting the card off the sign that you don't bend any pins on the connector.

Unscrew The Contoller Card

Each card uses the same controller card:

M500 Controller

Larger signs are actually two signs bridged together.

A large sign is two bridged together.

[M-500 Signs] [LED Signs] [MindPrint]