Roland VersaUV LEJ-640 Service Notes page 150

Disconnect all the cables which are connected to the SW
3
Power Supply.
Remove the 4 screws as shown in the fi gure and replace the
4
new SW Power Supply (5V).
Connect all the Cables.
5
Fix the following boards.
6
Connect all the cables.
Step Drive Board
Servo Board
Main Board
Head Board
UV Junction Board
TU Junction Board
Step
Drive
Board
Main Board
Servo Board
3-76
TU Junction Board
Head Board
UV Junction Board