Table of Contents
(2) Control Box
Procedure
1. Removing the single screw that secures the elec-
tric panel box cover provides access to the box con-
tents for checking.
1 Check electrical lead wires and transmission
lead terminal connections.
2 Check the transformer.
3 Check the address switch.
4 Use the self-diagnostic switch to check the LED
display.
2. Disconnect the power supply lead, transmission
lead, transformer lead connector, and address
switch wiring connector. Removing the screw se-
curing the inner cover provides access for checking
the entire controller board.
3. Note the following precautions whenever replacing
the controller board.
1 Be sure you do not confuse a Type A controller
board with a Type B controller board.
2 Take care to avoid mistakes when connecting
leads and connectors, and double-check for in-
complete and loose connections.
3 Check to make sure that DIP switch settings are
the same before and after replacement.
Important!
You do not need to remove the two electric panel
screws if you are checking electric panel box
contents only.
Removing the single screw that secures the
electric panel box cover provides access to the
controller board and all of the relay board for
checking. So it is not necessary to work according
to avobe 2.
–114–
Be careful on removing heavy parts.
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