Kenwood TK-260G Service Manual page 22

TK-260G/270G
Microprocesser : 30622M4102GP (TX-RX UNIT : IC13)
Pin function
Pin Port
I/O
No. Name
1 APC O
2 DTMF O
3 2TN I
4 DTMSTD I
5 SIM I
6 BYTE I
7 CNVSS I
8 AFSTB O
9 AFFCLK O
10 RESET I
11 XOUT O
12 VSS -
13 XIN I
14 VCC -
15 NC I
16 EN2 I
17 AUX3 I/O
18 INT I
19 OE I
20 TOTCXO I
21 EEPDAT I/O
22 TOVCO O
23 AUX1 I
24 SFTSTB O
25 EN1 O
26 DACS I
27 EN3 I
28 NC O
29 AUX4 O
30 AUX2 I/O
31 KOUT3 O
32 KOUT2 O
33 TXD O
34 PTT/RXD I
35 KOUT1 O
36 KOUT0 O
37 RDY -
38 ALE O
39 HOLD I
40 HLDA O
41 BLCK O
42 RDY O
43 BHE O
44 WR O
45 LCDCS O
46 CNTDAT O
47 CNTCLK O
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SEMICONDUCTOR DATA
Function
TX:Automatic Power Control data output
RX:BPF tuning data
DTMF/2TONE BEEP output
2TONE decode pulse input
DTMF decode detect detect:H
Destnation selct
+5V(5M)
GND
Base Band IC strobe/rest output
Base Band IC frame rest/system reset output
Reset
Clock output
GND
Clock input
+5V
NC
Encoder pulse input 2
Option board port 3 *Smar Trunk:
Clock output *E Trunk: Step pulse input
Battery voltage monitor input Low battery:L
Not used
QT/DQT modulation output(TCXO)
EEPROM data input/output
QT/DQT modulation output(VCO)
Option board port 1 *Smar Trunk:
Req/Ack input *E Trunk: TX Request input
Shift register strobe output
Encoder pulse input 1
Chip select output(Max dev) Select:L
CH selector input (TK-260G)
NC
Option board port 4 *Smar Trunk:
Data output
Option board port 2 *Smar Trunk:
Data input *E Tunk: Synchronizing input
Key scan output 3
Key scan output 2
Serial data
PTT on: L/Serial data
Key scan output 1
Key scan output 0
Not used
Not used
Not used
Not used
Not used
READ signal
Not used
WRITE signal
LCD chip enable output
Common data output
(EEPROM,LCD,SHIFT REG,1bit D/A MODEM)
Common clock output
(EEPROM,LCD,SHIFT REG,1bit D/A MODEM)
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Pin Port
I/O
No. Name
48 CSO - Chip select signal
49 A19 - Not used
50-59 A18-A9 - Flash memory address bus
60 ACC - +5V
61 A8 - Flash memory address bus
62 VSS - GND
63-70 A7-A0 - Flash memory address bus
71-75 KIN0-KIN4 I Key scan input
76 PLLUL O PLL unlock detect input
77 PLLSTB O PLL strobe output
78 SAVE I Battery save output
79-86 D7-D0 - Flash memory data bus
87 KEYAD I MONI LAMP key input
88 BATT I Battery voltage input
89 RFDAT O PLL data output
90 RFCLK O PLL clock output
91 NC - NC
92 RSSQL I Receive signal strength indicator input
93 ANLSQL I Analog squelch level input
94 AVSS - GND
95 TOI I QT/DQT signal input
96 VREF - Reference voltage input
97 AVCC - GND
98 DTMPD O DTME IC power control
99 DTMCLK O DTME IC decode clock output
100 DTMDAT I DTME IC decode data input
Shift register 1:BU4094BCFV(IC5)
Pin function
Pin
Port I/O
No.
4 W/N O Wide/Narrow SW
5 MUTE O RX audio/MIC mute
6 NC O NC
7 LED0 O RED LED
11 BSHIFT O Beat Shift
12 REG2 O Base Band IC inter register select 2
13 REG1 O Base Band IC inter register select 1
14 LED1 O GREEN LED
Shift register 2:BU4094BCFV(IC6)
Pin function
Pin
Port I/O
No.
4 5MC O 5MC control
5 5RC O 5R control
6 5TC O 5T control
7 SPMUTE O AF amp power supply control Power on: H
11 AUX6 O Option board port 6
12 AUX5 O Option board port 5
13 LCDBLK O LCD back light
14 RX O RX/TX VCO SW
Function
unulock: L
Latch: L
Power down: H
Function
Narrow: L
Mute: L
LED lights: H
Shift on: H
LED lights: H
Function
Power on: L
Power on: L
Power on: H
Back light on: L
RX: L