TK-3170
25
Pin No.
Port Name
I/O
Function
94
BB RDF/FD
I
BB RDF/FD
95
TCLK/DTRDO
I
BB TCLK and DTRDO
96
5RC
O
5R control
97
KEY1O
O
Key matrix output
98
KEY2O
O
Key matrix output
99
KEY3O
O
Key matrix output
100
KEY4O
O
Key matrix output
101~108
D7~D0
I/O
Data bus 7~0
109
DT
O
Serial data
110
CK
O
Serial clock
111
AUX3
I/O
Auxiliary 3
112
AUX1
I/O
Auxiliary 1
113
AUX6
I/O
Auxiliary 6
114
AUX2
O
Auxiliary 2
115
AUX5
O
Auxiliary 5
116
AUX4
I/O
Auxiliary 4
117
BATTSEL
I
BATT select
118
THP
I
TX thermal input
119
VOLIN
I
VOL input
120
VOXIN
I
VOX input
121
ASQ
I
RX analog SQ. input
122
RSSI
I
RX RSSI input
123
BATTLVL
I
BATT level
124
AGND
-
DGND (Vss)
125
LSDIN
I
Low speed data input
126
VREF
-
5V (Vref)
127
AVCC
-
5V (AVcc)
128
KEY1
O
Key matrix 1 input
TX-RX unit (X57-701X-XX)
Ref. No.
Use / Function
Operation / Condition
IC1
IC
Voltage detector / INT
IC2
IC
Voltage regulator / 5V
IC3
IC
Voltage detector / RESET
IC4,5
IC
Shift register
IC6
IC
LCD driver
IC7
Microprocessor
Microprocessor
IC8
IC
Flash memory
IC9
IC
EEPROM
IC10
IC
DET amplifier / VREF
IC11
IC
LSD filter
IC12
IC
TX SUM amplifier
IC13
IC
Audio processor
IC14
IC
AF switch
IC15
IC
RX HSD filter
IC16
IC
D/A converter
IC17
IC
TCXO buffer amplifier
IC18
IC
AF amplifier
IC19
IC
RX BPF tune voltage amplifier
IC501
IC
PLL system
IC601
IC
Comparator (APC)
IC701
IC
FM IF system
Q1
Transistor
5T voltage control
Q4 (1/2)
Transistor
AVR / 5C
Q4 (2/2)
Transistor
AVR / 5T
Q5 (1/2)
FET
5TC switch
Q5 (2/2)
FET
SAVE switch
Q6
Transistor
5C voltage control
Q7
FET
TX/RX indicator conntrol
Q8
Transistor
5R control switch
Q9
Transistor
5MS control switch
Q12
Transistor
Back light control
Q13
Transistor
Back light DC supply
Q14
FET
RX AF mute
Q15
FET
SSB DC supply control switch
Q16
Transistor
SSB DC supply switch
Q17
Transistor
CPU clock shift switch
Q19
FET
VOX level detector control switch
Q21
Transistor
AF switch
Q22
FET
AF mute switch
SEMICONDUCTOR DATA / COMPONENTS DESCRIPTION