Section 4 Decision-Makerr 340 Controller; General Repair Information - Kohler Decision-Maker 1 Manual

4.1 General Repair Information

This section contains Decision-Makerr 340 controller
repair information. Service replacement of the
controller is limited to the items shown in Figure 4-1.
Refer to the respective controller parts catalog for
service part numbers. No other replacement service
parts are available.
1
15
14
13
12
11
10
9
1. Service kit (includes controller assembly, [2] lamps, and literature)
2. Interconnection circuit board (TB1, TB2, TB3, and TB4 terminal strips)
3. Fuse, 1.5 A, 250 V (3)
4. Holder, fuse
5. Main (microprocessor) logic circuit board with F1, F2, and F3 fuses
6. Keypad and digital display circuit boards
7. Indicator circuit board (LED and alarm horn)
8. Bumper (4)
Figure 4-1 Decision-Makerr 340 Controller Service Replacement Parts
TP-6356 4/12

Section 4 Decision-Makerr 340 Controller

Before replacing the controller, remove all external
accessories and other electrical connections to verify
that these items are not the cause of the controller
problems. Verify that the accessories and connections
are functioning correctly before reconnecting them to
the new controller.
Electrical noise can affect the controller operation, refer
to Appendix F, Electrical Noise and Wiring Practices.
9. Potentiometer, voltage adjustment
10. Switch, emergency stop
11. Selector switch with knob
12. Lamp, panel (2)
13. Communication circuit board (below indicator board
14. Input conditioning circuit board
15. Interface circuit board (pulse converter)
7
8
(optional)
Section 4 Decision-Makerr 340 Controller
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3
4
5
6
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