Rice Lake Lift Truck/Pallet Jack Scales - CLS-Series - Manual (Page 28)

24 CLS Series Service Manual
5.1.4 Board Removal
If you must remove the 420 CPU board, use the
following procedure:
1. Disconnect power to the indicator. Remove
the screws that hold the backplate to the
enclosure body, then lift the backplate away
from the enclosure and set aside.
2. Disconnect power supply cable from
connector J7 on the 420 CPU board.
3. Unplug connectors J1 (load cell cable), J2
(digital inputs), J3 (EDP/RS-232), J4 (serial
communications), J6 (digital outputs), and
J10 & J11 (keypad ribbon cables). If an
analog output board is installed, disconnect
the analog output cable. See Figure 5-2 on
page 22 for connector locations.
4. Remove the five screws from the CPU board,
then lift the board out of the enclosure.
To repla ce the CPU board, reverse the above
procedure. Be sure to reinstall cable ties to secure all
cables inside the indicator enclosure.