Replace Control Board (Only Br 30/4 C Bp Pack Power +) - Kärcher BR 30/4 C Service Manual

5.1.16 Replace control board (only BR 30/4 C Bp
Pack Power +)
DANGER
Turn the appliance off and remove the accumulator prior to
performing any tasks on the appliance.
CAUTION
Risk of damage by electrostatic discharge (ESD)! Take
suitable measures for discharging electrostatic charge pri-
or to performing work on the appliance electronics.
Transport exchanged board (for analysis) in the ESD pro-
tected bag.
1 Release, park position
2 Screws
3 Circuit board cover
 Press the park position release and tilt the appliance
backwards.
 Unscrew the screws.
 Remove the board cover.
1 Electric connectors
2 Printed circuit board (PCB)
3 Guides
4 Cable inlet
 Separate the electric connectors.
 Remove the circuit board.
Note
Only touch the control board on the outer edges.
Installation information
28
English 5.906-768.0 Rev. 01 (10/20)
The control board must be reinserted into the guides.
Ensure that the cable inlet is seated properly.
1 Electric socket plug connections
2 Electric screw connections
3 Printed circuit board (PCB)
 Only touch the control board on the outer edges.
 Separate the electric connectors.
 Disconnect electric screw connections.
Item Name
1 X1
2 X13
3 X11
4 X8
5 X7
6 X9
7 X10
8 X4
9 X2
10 X5
 Install the control board in the reverse order.
Plug-in location
UART/USB Converter
Ground
Power Supply
Voltage divider
–
Turbine
–
Voltage divider
–
Turbine
–
Voltage divider
–
Pump
Water
Voltage divider
–
Pump
Water
Pump switch
Main switch
LED indicator