Welbilt MERRYCHEF conneX Service & Repair Manual page 106

7 Circuit boards and diagrams
7 CIRCUIT B OARD S A ND DIAGRA MS
Terminal Name
X514
LH Magnetron overheat thermostat. Wires 74 & 73
X515
Not used – Linked out (jumper)
X516 Not used – Linked out (jumper)
X517
Not used
X518 Not used
X519 Convection fan speed controller (VFD) signal
Wire 66 red, 0-10V
Wire 67 green, 10V
Wire 68 blue, GND
X520 Not used
X521 Not used
X522 Not used
X523 UI communication and power cable
X524 Not used
X530
Cavity temperature thermocouple
X531 Not used
X532 Not used
X533
Not used
X534
Not used
X535 Not used
X540 Not used
X541
Not used
X560 Not used
X600 PM
GND Chassis ground
Note: IO Board test points (TP1 to TP58) are for factory build procedures only.
Merrychef conneX ® service and repair manual
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