Teac MT-20D-IO - Page 70

(6) Tach pulse conversion
The TACH PULSE CONVERSION CIRCUIT is a circuit to divide the fre-
quency of the ENC(L) signal from the DRIVE I/F by 16, and supply the
resultant signal to the BASIC I/F as tach pulses.
ENC (U -------t
TACH PULSE
CONVERSION
CIRCUIT
f-------TCH
Fig. 335 Tach pulse conversion
(7) Clock generator
The CLOCK GENERATOR is a circuit to make the master oscillator of
7.2 MHz generate clocks (3.6 MHz) in order to provide the internal
control clock to the interface control and the erase clock to the
DRIVE I/F.
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