SMA SB3.0-1SP-US-40 Instrucciones De Servicio Técnico página 9

2. Remove the terminal block with the connected DC
conductors from slot DC-in. Loosen the screws using
a flat-blade screwdriver (blade width: 4 mm
(5⁄32 in)) and pull the terminal block out of the slot.
While doing so, only touch the terminal block on the
black enclosure.
3. Remove the terminal block with the connected AC
conductors from slot AC-out. Loosen the screws
using a flat-blade screwdriver (blade width: 4 mm
(5⁄32 in)) and pull the terminal block out of the slot.
4. 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: 3.5 mm (9/64 in)) and
pull the terminal block out of the slot.
5. Pull the ribbon cable connecting the communication
assembly to the Power Unit out of the
communication assembly.
Service Manual
4 Disassembling the Defective Power Unit
COM
M1
X1 X2
FCC ID: SVF-KP20
IC: 9440A-KP20
A B
SBxx-1SP-US-40-AT-PU-SG-xx-13
2
1
2
1
2
1
AC-out SPS
M2
ANT.
D-IN SPS
9