Roland VersaEXPRESS RF-640 Service Notes page 135

Remove the fi ve screws shown in the fi gure and replace with
7
the new SW Power Supply.
Connect all the cables to the SW Power Supply.
In case that the volume is accidentally turned, ad-
just the output voltage value to +41 +/- 0.1.
Put the Chassis back.
8
Fix the Chassis with the fi ve screws shown in the fi gure.
9
Connect the cables and bundle the cables with the clamps.
10
Volume
3-61
Chassis
Screw
<Top View>
CN2
Screw
CN1108
CN1107
CN1106
CN1105
CN1104
CN1103