Motorola CM200 Service Manual page 23

Notes For All Schematics and Circuit Boards
VS AUDIO_SEL
VS GAIN_SEL
VS_MIC
VS_INT
VS_RAC
VSTBY
Switch signal to Enable option board audio output signal
Voice Storage Gain Select line
Voice Storage Audio Signal to microphone path
Voice Storage Interrupt line
Voice storage Row Address Clock Signal
3.3 V supply for µP when the radio is switched off
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