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8.15. POWER SUPPLY VOLTAGE GENERATOR
The input from the main power supply is in 3 voltage levels: +15V, +30V, +40V. Since the voltage
levels: +15V, +5V, +3.3V, +40V, +160V, +100V, -100V and AC 75V are required onboard, voltage
levels are generated onboard as written below.
A DC-DC converter that generates +3.3V and +5V from 15V input from the main power supply.It
consists of a circuit that steps down the voltage from +15V to +3.3V by the switching power
supply of IC10, Q13 and L10, and a circuit that steps down the voltage from +15V to +5V by the
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