Roland VersaUV LEJ-640 Service Notes page 145

Disconnect 4 connectors as shown in the fi gure from the DC
6
Junction Board.
Do not connect the disconnected cables until setting
and checking of the output voltage is completed. UV
lamp or board may be broken.
Disconnect the connector of the CN1001 on the AC Junction
7
Board and CN2 on the SW supply (5V), and connect them
with the special tool cable.
Special tool cable
1000007423 CABLE-ASSY,JIGU POWER LEC-540
Turn on the main power SW.
8
Put the black probe into CN51-GND pin (1~4 pin:black) and
9
the red probe into Vout pin (5~8 pin:yellow).
Use the Digital Multi-Meter that can measure the di-
rect voltage.
CN42
CN37
CN2
SW Power supply (5V)
< Rear side >
Main Power
GND pin (1~4pin:black)
3-71
CN204
DC Junction Board
CN36
Special Tool Cable
CN1001
AC Junction Board
Probe
Vout pin (5~8pin:orange)