Brother P-touch PT-210E Servis Kılavuzu - Sayfa 16

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Brother P-touch PT-210E Servis Kılavuzu
Electronics
3.2.8

Oscillation Circuit

Fig. 3.2-14 shows the oscillation circuit.
This circuit contains an oscillator and generates an oscillation at 20 MHz which act as
the CPU basic clock. The CPU divides this into half (10 MHz) to synchronize its
internal operations.
3.2.9

Reset Circuit

Fig. 3.2-15 shows the reset circuit. If the +5BV drops abnormally, this circuit prevents
the CPU from operating erroneously.
Fig. 3.2-14 Oscillation Circuit
Fig. 3.2-15 Reset Circuit
III - 6
P-touch
SERVICE MANUAL