Semiconductor Data - Kenwood TK-7108 Service Manual

TK-7108
Microprocessor : 784214AGC125 (TX-RX Unit IC6)
■ Terminal function
Pin No. Name
1 NC
2 DTMOSC
3 PLLE
4 EVLLD
5 DTMCK
6 DTMDT
7 UL
8 BSHIFT
9 VDD
10 X2
11 X1
12 VSS
13 NC
14 NC
15 RESET
16 INT
17 DMTSDT
18 POWER
19 IGN
20 TX/RX
21 LEDMON
22 LEDPF
23 AVDD
24 AVREF
25 QTIN
26 SQIN
27 RSSI
28 PWRPRCT
29 BATT
30 TEMP1
31 TEMP2
32 TEMP3
33 AVSS
34 DTM/BEEP
35 QT/DQT
36 AVREF
37 FNC1
38 FNC2
39 HOOK
40 RXD
41 TXD
42 PTT
43 FNC3
44 FNC4
45 FNC5
46 FNC6
47 FNC7
24

SEMICONDUCTOR DATA

I/O Function
I
O DTMF IC Clock Control
O PLL IC Chip Select
O E-Volume LD
O DTMF Dec IC Clock
I/O DTMF Dec IC Data
O Unlock Detect
O Clock Shift
-
- X'TAL(7.3728MHz)
- X'TAL(7.3728MHz)
- GND
- OPEN
- GND
- CPU RESET
I uCOM Stop
I DTMF Dec IC STD
I Power Key Input
I Ignition
O TX/RX
O LED for MON Key
O LED for PF Key
- +5V
- +5V
I QT/DQT Input
I Squelch Input
I RSSI Input
I Power Protect
I Battery Voltage
I Temperature1
I Temperature2
I Temperature3
- GND
O DTMF/Beep Output
O QT/DQT Output
- +5V
I/O Function Port1
I/O Function Port2
I Hook
I From FPU
O To FPU
I PTT Key
I/O Function Port3
I/O Function Port4
I/O Function Port5
I/O Function Port6
I/O Function Port7
Pin No. Name I/O
48 FNC8 I/O
49 NC I
50 MUTE1 O
51 MUTE2 O
52 MUTE3 O
53 DT O
54 CK O
55 NC I
56 EEPCK O
57 EEPDT I/O
58 EEPWT O
59 DST1 I
60 DST2 I
61 DST3 I
62 NC I
63 24VDET I
64 NC I
65 LEDC1 O
66 LEDC2 O
67 LEDR O
68 LEDG O
69 MICBL O
70 LEDC3 O
71 LEDC4 O
72 VSS -
73 MICMT O
74 MICEM O
75 NC I
76 8RC O
77 8TC O
78 CM I/O
79 NC I
80 NC I
81 VDD5M -
82~85 NC I
86 KMI1 I
87 KMI2 I
88 KMI3 I
89 KMI4 I
90 NC I
91 NARROW O
92 WIDE O
93 SBC O
94 FLASH -
95~98 NC I
99 KMO1 O
100 KMO2 O
Function
Function Port8
AF Mute
Speaker Mute
AF AMP SW
Common Data
Common Clock
EEPROM Clock
EEPROM Data
EEP Write Protect
Destination 1
Destination 2
Destination 3 (Open)
24V Detect
LED for CH1 Key
LED for CH2 Key
TX LED
Busy LED
Mic Back Light
LED for CH3 Key
LED for CH4 Key
GND
Mic1 Mute
Mic2 Mute
8R Control
8T Control
Mic Key Check
+5V
Key Matrix Input1
Key Matrix Input2
Key Matrix Input3
Key Matrix Input4
Wide / Narrow2
Wide / Narrow
Battery Switch
Flash Write Port
Key Matrix Output1
Key Matrix Output2