Semiconductor Data - Kenwood TK-2107 Service Manual

Microprocessor: M38267M8L241GP (IC403)
Pin No. I/O Port Name
1 O VC1
2 O VC2
3 I NC
4 I TIBI
5 I TI
6 I BUSY
7 l BATT
8 l NC
9 O VCCN
10 O APC
11 I NC
12 I NC
13 l NC
14 l NC
15 O BEEP
16 O TO
17 l NC
18 I PTT
19 O TXD
20 I RXD
21 l NC
22 I SELF
23 I MONl
24 I NC
25 I NC
26 I NC
27 l NC
28 l ENC3
29 l ENC2
30 l ENC1
31 l ENC0
32 l INTO
33 I RST
34 I NC
35 O NC
36 l XIN
37 O XOUT
38 I VSS
39 O SHIFT
40 O PABC
41 O WNRC
42 O WNTC
43 l NC
44 l NC
45 I NC
46 l NC
47 l/O SDA
48 O SCL
49 I UL
50 l NC
51 I NC
52 I NC
53 l NC
54 I NC
55 O DT
56 O CK
57 O NC
TK-260 :K, K2
58 O LE

SEMICONDUCTOR DATA

Function
Variable capacity tune control
Variable capacity tune control
NC
QT/DQT external circuit center
point input
QT/DQT signal input
Busy input
Battery voltage detection
NC
Frequency regulation output
TX : Auto power control D/A output
RX : BPF tuning D/A output
NC
NC
NC
NC
Beep output
QT/DQT output
NC
[PTT] key input Connected to RXD
RS-232C output Connected to SP/
MIC test(REM)
RS-232C input Connected to [PTT]
line
NC
Self program L : disable
[MONl] key input
NC
NC
NC
NC
Encode input (channel select)
Encode input (channel select)
Encode input (channel select)
Encode input (channel select)
Power detection control
Reset input
NC
NC
7.3728MHz oscillator
7.3728MHz oscillator
GND
Beat shift H : shift on
Final supply H : on
Audio reference sensitivity
L : narrow
MAX Dev. Control Narrow: H
NC
NC
NC
NC
EEPROM data line
EEPROM clock line
PLL unlock detection pin L : unlock
NC
NC
NC
NC
NC
Common data output
Common clock output
NC
PLL IC enable H : Iatches
Pin No. I/O Port Name
59 O NC
60 O NC
61 O 5MC
62 O AFCO
63 O RX
64 O GLED
65 O RLED
66 O SAVE
67 O MUTE
68 O 5RC
69 O 5TC
70 O NC
71 O NC
72 O NC
73 O NC
74 O NC
75 O NC
76 O NC
77 O NC
78 O NC
79 O NC
80 O NC
81 O NC
82 O NC
83 O NC
84 O NC
85 O NC
86 O NC
87 O NC
88 O NC
89 l VCC
90 l VREF
91 l AVSS
92 O NC
93 O NC
94 O NC
95 O NC
96 I NC
97 l NC
98 I NC
99 I NC
100 I NC
FET : 2SK2596(Q102)
Absolute Maximum Ratings (Ta=25 C)
Item V V I
DSS GSS D
Rating 17V 10V 0.4A
FET : 2SK2595(Q105)
Absolute Maximum Ratings (Ta=25 C)
Item V V I
DS GSS D
Rating 17V 10V 1.1A
TK-2107
Function
NC
NC
Control of power supply (5M) for
everything except the
microcomputer and EEPROM L
: Power supply ON
AF amp power suppIy H : ON
TX/RX VCO select H : RX
Green LED control H : Lit
RED LED control H : Lit
Save control H : Save off
Mute control H : Mic mute
L : AF mute
Reception power suppIy control
L : on
Transmission power suppIy control
H : on
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Microcomputer power supply, 5V input
A/D conversion reference voltage ;
connected to Vcc
A/D converter power supply ;
connected to Vss
NC
NC
NC
NC
NC
NC
NC
NC
NC
Pch* Tch Tstg
3W 150 C -45~+150 C
*Tc=25 C
Pch* Tch Tstg
20W 150 C -45~+150 C
*Tc=25 C
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