Bose ControlSpace ESP-880 Service Manual page 63

DISASSEMBLY PROCEDURES
5. Power Supply PCB Removal.
5.1 Remove the top cover.
5.2 Unplug the wiring harness that runs to
the main PCB at PL1.
5.3 Disconnect the green/yellow ground wire
from the back of the AC input IEC connector.
5.4 Remove the six screws that secure the
boar to the bottom of the chassis. Two of the
screws are black and are secure the AC jack
to the bottom of the chassis.
5.5 Remove the two screws that secure the
AC input connector to the rear of the chas-
sis. Take care to not lose the lock nuts on the
back of the connector.
5.6 Lift out the board. Be sure to retain the
insulating sheet under the board for re-
installation.
6. LAN PCB Assembly Removal
6.1 Remove the top cover.
6.2 Remove the two input or output PCB
assemblies that are located directly behind
the LAN PCB using procedure 2.
6.3 Remove the two screws that secure the
LAN PCB to the front panel. Lift out the
board.
6.4 Unplug the wiring harness from the LAN
PCB at the JST connector.
63