Roland Advanced Jet AJ-1000 Service Notes page 128

Remove 4 screws in the figure and replace with the new
3
SW Power Supply(41V).
Fix it with 4 screws and connect all cables.
Fix the Signal Board Stay with 4 screws in the figure with
4
Signal Junction Board. Put all cables through Wire
Saddles and connect all cables.
Set the output voltage of SW Power Supply to +41V.
5
1) Turn on the Printer Main Power SW.
Use the Digital Multi-Meter that can measure
the direct voltage.
CN23
<Rear view>
3-43
CN5
CN24
Signal Junction
Board
Signal Board Stay
Printer Main Power SW