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7-2 PCB FUNCTION
7-2-1 POWER CIRCUIT
The secondary part of the TRANS is composed of the power supply for the display and relay drive (12Vdc) and that for the
MICOM and IC (5Vdc).
The voltage for each part is as follows.
VA1 is a part for preventing the over voltage and noise. When 385V or higher power is applied, the inside elements are
short-circuited and broken, resulting in the blowout of the fuse in order to protect the elements of the secondary part of the
TRANS.
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PART VA 1 CE 2 CE3
VOLTAGE 220 Vac 12 Vdc 5 Vdc