Contents of a typical circuit board
service kit:
Board to be replaced
Screws (if included)
Fuse cover (power module board
only)
Spacer (hose interface board only)
Repair
8-17
Part 1123087_02
3/2014 Nordson Corporation
Replacing a Circuit Board
Use this procedure to replace any of the following circuit boards:
Main board
Power supply board
Power module board
Expansion board
Hose interface board
Fill board
EcoBead board
You will need the following items:
Circuit board service kit
5‐mm hex key
Standard and metric hex key set
Screwdrivers
Refer to Section 9, Parts, for service kit part numbers.
To prepare for this procedure
1. Switch off the melter and disconnect and lock out input power to the
melter.
2. Remove the controls cover. Refer to Removing or Installing Covers in
Section 6, Maintenance, as needed.
3. If needed (to replace the power module board or fill board), remove the
touchscreen assembly. Refer to To remove the touchscreen assembly
later in this section.
To remove a circuit board
See Figure 8‐11.
1. After noting their locations, disconnect all power and control cables from
the board to be replaced.
2. Remove the screws and associated hardware that secure the board and
then carefully remove the board from the melter.
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