HYT TC-700P, Руководство по обслуживанию

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TC-700P Service Manual
17
64 P26/A6 N_CON O
Narrow band control
H: narrow band open;
L: narrow band closed.
65 P25/A5 LEDR O
Red light control
H: on; L: off.
66 P24/A4 LEDG O
Green light control
H: on; L: off.
67 P23/A3 EN4 I EN4 Channel Selector knob 4 Original: EN2
68 P22/A2 EN3 I EN3 Channel Selector knob 3 Original: EN4
69 P21/A1 EN2 I EN2 Channel Selector knob 2 Original: EN3
70 P20/A0 EN1 I EN1 Channel Selector knob 1 Original: EN1
71 P17/INT5 PUMP_S
Ｗ
O
Control PLL pump current to
improve phase lock speed
H: high current;
L: low current.
72 P16/INT4 DTMF_EST I
Rise edge is generated when
the decoding chip detects
DTMF data
73 P15/INT3 MANDOWN I Man down detect
74 P14 AF_MUTE O
Audio path switch
H: on; L: off.
75 P13 MOTO_CON
Motor control
H: valid;
L: stop.
76 P12 PLL_UL I
PLL unlock detect
H: locked;
L: unlocked.
77 P11 PLL_STB O
PLL chip select output
H: select;
L: off.
78 P10 MIC_MUTE O
MIC switch
H: off; L: on.
79 P07/D7 PTT_EXT I External PTT input
80 P06/D6 PLL_CLK O PLL clock output
81 P05/D5
PLL_DA
TA O PLL data output
82 P04/D4 T/R O
Tx/Rx control
H: Rx; L: Tx.
83 P03/D3 APC_SW O
Control transient
H: APC circuit works;
L: APC circuit is disabled.
84 P02/D2 PTT I
PTT detect
H: released;
L: pressed.