LA7289 processor equivalent, vcr audio signal record and playback processor.
* Adjustment-free record bias current (automatic adjustment circuit adopted)
* Built-in record bias oscillator circuit power supply switch
* Record equalizer .
EE, playback → VCC Record → Control voltage Internal circuit
A06818
2
Head switch (high voltage)
Playback → On Record, EE → Off On resistance → 10 Ω (typical) Withstand voltage when off → ±45 V (f = 70 kHz)
3
GND
Ground used for the pin 2 head.
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