Service manual

Page 4-6 SATO D508/D512 Service Manual

MAIN CIRCUIT BOARD REPLACEMENT

1 Turn the printer OFF and disconnect the power supply cord.

2 Remove the base cover from the housing cover to access the main circuit board.

3 Remove the five screws (1) (See Figure 4-5) that secure the main circuit board (2) to the

printer (3).

4 Disconnect all wiring harnesses from the defective main circuit board (2).

5 Remove the defective main circuit board (2), along with the interface cover (4), from the

printer (3).

6 Detach the interface cover (4) from the defective board (2) and attach it to the replacement

board (2).

7 Insert the replacement main circuit board (2) into the printer (3) and secure it using the five

screws (1) previously removed from the old board.

8 Reconnect all the appropriate wiring harnesses to the replacement circuit board (2).

9 Attach the base cover to the housing cover.

10 Load some media, and run some tests to confirm proper function.

Figure 4-5, Main Circuit Board Replacement

NOTE: Each wiring harness connector is different from the others. To

reconnect the wiring harnesses, simply match mating halves.