Casio EX-468

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5-3. RESET CIRCUIT
The reset circuit is as follows.
Reset IC
5-4. POWER SUPPLY CIRCUIT
The power supply circuit is as follows.
VP (DC 25.2V): For the printer control circuit.
VCC (DC 5V): For the logic circuit power.
V3.3 (DC 3.3V): For the logic circuit power.
Vbat (DC 3.3V): For the RAM power.
V1.9V (DC 1.9V): For the CPU internal power.
Vrtc (DC 1.9V): For the CPU RTC power.