Kenwood TK-3170 Service Manual page 29

SEMICONDUCTOR DATA / COMPONENTS DESCRIPTION
Pin No. Port Name I/O
95 TCLK/DTRDO I
96 5RC O
97 KEY1O O
98 KEY2O O
99 KEY3O O
100 KEY4O O
101~108 D7~D0 I/O
109 DT O
110 CK O
111 AUX3 I/O
112 AUX1 I/O
113 AUX6 I/O
114 AUX2 O
115 AUX5 O
116 AUX4 I/O
117 BATTSEL I
118 THP I
119 VOLIN I
120 VOXIN I
121 ASQ I
122 RSSI I
123 BATTLVL I
124 AGND -
125 LSDIN I
126 VREF -
127 AVCC -
128 KEY1 O
Function
BB TCLK and DTRDO
5R control
Key matrix output
Key matrix output
Key matrix output
Key matrix output
Data bus 7~0
Serial data
Serial clock
Auxiliary 3
Auxiliary 1
Auxiliary 6
Auxiliary 2
Auxiliary 5
Auxiliary 4
BATT select
TX thermal input
VOL input
VOX input
RX analog SQ. input
RX RSSI input
BATT level
DGND (Vss)
Low speed data input
5V (Vref)
5V (AVcc)
Key matrix 1 input
TK-3170/3173
TX-RX unit (X57-7010-XX)
Ref. No. Use / Function
IC1 IC
IC2 IC
IC3 IC
IC4,5 IC
IC6 IC
IC7 Microprocessor
IC8 IC
IC9 IC
IC10 IC
IC11 IC
IC12 IC
IC13 IC
IC14 IC
IC15 IC
IC16 IC
IC17 IC
IC18 IC
IC19 IC
IC501 IC
IC601 IC
IC701 IC
Q1 Transistor
Q4 (1/2) Transistor
Q4 (2/2) Transistor
Q5 (1/2) FET
Q5 (2/2) FET
Q6 Transistor
Q7 FET
Q8 Transistor
Q9 Transistor
Q12 Transistor
Q13 Transistor
Q14 FET
Q15 FET
Q16 Transistor
Q17 Transistor
Q19 FET
Q21 Transistor
Q22 FET
Operation / Condition
Voltage detector / INT
Voltage regulator / 5V
Voltage detector / RESET
Shift register
LCD driver
Microprocessor
Flash memory
EEPROM
DET amplifier / VREF
LSD filter
TX SUM amplifier
Audio processor
AF switch
RX HSD filter
D/A converter
TCXO buffer amplifier
AF amplifier
RX BPF tune voltage amplifier
PLL system
Comparator (APC)
FM IF system
5T voltage control
AVR / 5C
AVR / 5T
5TC switch
SAVE switch
5C voltage control
TX/RX indicator control
5R control switch
5MS control switch
Back light control
Back light DC supply
RX AF mute
SSB DC supply control switch
SSB DC supply switch
CPU clock shift switch
VOX level detector control switch
AF switch
AF mute switch
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