HYT TC-500, Service Manual, Page: 15 / 77

TC-500 Service Manual
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34 MONIK I MONI key input
35 ENC0 I
Channel Selector Knob encode input 36 ENC1 I
37 ENC2 I
38 ENC3 I
39 AF
MUTE
O Audio muting control
40 AFP O Audio power control
41 TONE5 O CTCSS code output
42 TONE4 O CTCSS code output
43 TONE3 O CTCSS code output
44 TONE2 O CTCSS code output
45 TONE1 O CTCSS code output
46 TONE0 O CTCSS code output
47 WNTC O W/N L: Wide H: Narrow
47-70 NC
71 Vcc I Power input: 5V
72 V
REF
I A-D converse reference voltage
73 Avss I A-D GND
74-77 NC
78 NC
79 NC
80 NC