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EXPLATION FOR MICOM CIRCUIT
1. Explanation for PWB circuit
1-1. Power circuit
The power circuit includes a Switched Mode Power Supply (SMPS). It consists of a rectifier (BD1 and CE1) converting AC
to DC, a switch (IC2) switching the DC voltage, a transformer, and a feedback circuit (IC3 and IC4).
Caution : Since high voltage (310 Vdc) is maintained at the power terminal, wait at least 3 minutes after unplugging the
appliance to check the voltages to allow the current to dissipate.
Voltage of every part is as follows:
Part
VA1
CE1
CE2
CE3
CE4
CE5
Voltage
230 Vac
310 Vdc
16 Vdc
12 Vdc
16 Vdc
5 Vdc
(1) GR-P227/L227
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