SMA SB Series - Page 13

6 Disassembling the Defective Power Unit
SMA Solar Technology AG
Replacement Manual SBxx-1SP-US-41-PU-RM-xx-10 13
5. If there is a switch and an outlet for secure power
supply operation connected, remove the terminal
block with the connected cable from the SPS slot. To
do this, unscrew the screws using a flat-blade
screwdriver (blade width: 4mm (5⁄32in)) and pull
the terminal block out of the slot.
6. Pull the ribbon cable connecting the communication
assembly to the PowerUnit out of the
communication assembly.
COM
SPS
AC-out
D-IN
SPS
A B
M1
X1 X2
M2
ANT.
FCC ID: SVF-KP20
IC: 9440A-KP20
7. Unscrew the two screws on the right and left side of the PowerUnit (TX25) and retain together
with the washers for later use. Hold the Power Unit to avoid tilting.
8. Lift the Power Unit upwards from the Connection
Unit.
T
OP
9. If necessary, remove residual insulation material from the two connection openings at the top
of the Connection Unit.
ENGLISH