Kenwood TK-260G Service Manual page 22

TK-260G/270G
Microprocesser : 30622M4102GP (TX-RX UNIT : IC13)
Pin function
Pin Port
I/O
No. Name
TX:Automatic Power Control data output
1 APC O
RX:BPF tuning data
2 DTMF O DTMF/2TONE BEEP output
3 2TN I 2TONE decode pulse input
4 DTMSTD I DTMF decode detect
5 SIM I Destnation selct
6 BYTE I +5V(5M)
7 CNVSS I GND
8 AFSTB O Base Band IC strobe/rest output
9 AFFCLK O Base Band IC frame rest/system reset output
10 RESET I Reset
11 XOUT O Clock output
12 VSS - GND
13 XIN I Clock input
14 VCC - +5V
15 NC I NC
16 EN2 I Encoder pulse input 2
Option board port 3
17 AUX3 I/O
Clock output
18 INT I Battery voltage monitor input Low battery:L
19 OE I Not used
20 TOTCXO I QT/DQT modulation output(TCXO)
21 EEPDAT I/O EEPROM data input/output
22 TOVCO O QT/DQT modulation output(VCO)
Option board port 1
23 AUX1 I
Req/Ack input
24 SFTSTB O Shift register strobe output
25 EN1 O Encoder pulse input 1
26 DACS I Chip select output(Max dev)
27 EN3 I CH selector input (TK-260G)
28 NC O NC
29 AUX4 O Option board port 4
Data output
Option board port 2
30 AUX2 I/O
Data input
31 KOUT3 O Key scan output 3
32 KOUT2 O Key scan output 2
33 TXD O Serial data
34 PTT/RXD I PTT on: L/Serial data
35 KOUT1 O Key scan output 1
36 KOUT0 O Key scan output 0
37 RDY - Not used
38 ALE O Not used
39 HOLD I Not used
40 HLDA O Not used
41 BLCK O Not used
42 RDY O READ signal
43 BHE O Not used
44 WR O WRITE signal
45 LCDCS O LCD chip enable output
Common data output
46 CNTDAT O
(EEPROM,LCD,SHIFT REG,1bit D/A MODEM)
Common clock output
47 CNTCLK O
(EEPROM,LCD,SHIFT REG,1bit D/A MODEM)
22
SEMICONDUCTOR DATA
Function
detect:H
*Smar Trunk:
*E Trunk: Step pulse input
*Smar Trunk:
*E Trunk: TX Request input
Select:L
*Smar Trunk:
*Smar Trunk:
*E Tunk: Synchronizing input
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