ACS 653, ACS 663 Service Manual
SP00D00624 2021-04-08 Robert Bosch GmbH
74
Electrical
These instructions outline the basic steps to
replace the power board. Refer to Figure 3-5.
1. Disconnect unit from the power source.
2. Open the service rear door.
3. Remove the rear cover (above the service
door) by pushing it up and extract it by
pulling it out.
4. Remove the cover from power box.
5. Disconnect all wires from power board.
6. Remove screws securing power board in
place and remove power board.
1. Install new power board and secure in place
with screws.
2. Connect wires as shown in power board
wiring diagram. See Figure 3-5.
3. Insert the cover on the power box.
4. Insert the rear cover so that the 4 holes on
the sides the cover t into the 4 clips on the
machine. Push down to hook the rear cover.
5. Close the service rear door
6. Power up the unit and perform a functional
test.
P8
P5
P9
P1P7
PBP6
J1
PBP5
P4
PBP2
P3
P6
PBP4
PBJ1
P2
PBP8
PBP3
PBP1
PBP9
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