Circuit Explanation; Power Supply Circuit - Casio CE-300 Service Manual

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4. CIRCUIT EXPLANATION

4-1. Power supply circuit

Q1: Power transistor
Q2: Voltage detection transistor
Voltage level at above check point (unit: V )
Measurement
A
position
Voltage (V) 12.5V
Digitized in Heiloo, Holland.
B C D
5.3V 6.2V 2.47V
— 4 —
A
B
C
3/22/15
D