Main Board Replacement - Friendly Robotics robomower RL350 Service Manual

4.2.3 Main Board Replacement

Required tools:
A. Remove the Power Pack from the Robomow.
B. Remove the cover, as outlined in section 4.2.1.
C. Disconnect all the cables leading to the main board.
D. Remove the main board from its seat in the base and store the four rubber holders.
E. Take the new main board from its packing and follow the instructions as defined in Service
Bulletin #RL0536-01 -Main Board Replacement (Section 7.1)
F. Flash replacement instructions:
a. The first step is to fit the new board with the flash (S.W version) from the defected board or
with new flash from the spare parts stock.
b. The flash is placed inside a socket and need to be extracted using the special flash
extracting tool. Place the two leads of the tool at the diagonal corners of the socket with
grooves, as illustrated in Figure 4.2.3.1.
c. Insert both leads of the extracting tool all the way into the groove.
d. Squeeze the sides of the tool, as illustrated in Figure 4.2.3.2.
Figure 4.2.3.1
Positioning the extracting tool on the socket
e. The flash will pop out of the socket. Lift the flash off the board (Figure 4.2.3.3)
f. Identify the flat corner of the on the flash and the marking dot next to it, as illustrated in
Figure 4.2.3.4.
Figure 4.2.3.3
Lifting the flash out of the socket
Wide flat screwdriver
Flash extracting tool
Procedure duration:
Figure 4.2.3.2
Squeezing the tool
Figure 4.2.3.4
Orientation markings on the flash
10 minutes
Flat
corner
4
15