Method of Replacing Inverter’s Power Transistors Modules SiUS181631EA
270 Troubleshooting
10.Method of Replacing Inverter’s Power Transistors
Modules
Check the power semiconductors mounted on the main PCB (A1P) with a multimeter.
Items to be prepared
z
Multimeter : Prepare the digital type of multimeter with diode check function.
Preparation
z
Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make measurement of
resistance.
z
To make measurement, disconnect all connectors and terminals.
Main PCB (A1P)
(R13060)
C
–
C
+
W
V
U
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