Semiconductor Data - Kenwood TK-3107G Service Manual

MCU: 38268MCA060GU (IC403)
Pin No. I/O Port Name
1 O VC1 Variable capacity tune control
2 O VC2 Variable capacity tune control
3 I NC NC
QT/DQT external circuit center point
4 I TIBI
input
5 I TI QT/DQT signal input
6 I BUSY Busy input
7 l BATT Battery voltage detection
8 l NC NC
9 O VCCN Frequency regulation output
TX: Auto power control D/A output
10 O APC
RX: BPF tuning D/A output
11~14 I NC NC
15 O BEEP Beep output
16 O TO QT/DQT output
17 l NC NC
18 I PTT [PTT] key input Connected to RXD
RS-232C output Connected to SP/MIC
19 O TXD
test (REM)
20 I RXD RS-232C input Connected to [PTT] line
21 l NC NC
22 I SELF Self program L: Disable
23 I MONl [MONl] key input
24~27 I NC NC
28 l ENC3 Encode input (channel select)
29 l ENC2 Encode input (channel select)
30 l ENC1 Encode input (channel select)
31 l ENC0 Encode input (channel select)
32 l INTO Power detection control
33 I RST Reset input
34 I NC NC
35 O NC NC
36 l XIN 7.3728MHz oscillator
37 O XOUT 7.3728MHz oscillator
38 I VSS GND
39 O SHIFT Beat shift H: Shift on
40 O PABC Final supply H: On
41 O WNRC Audio reference sensitivity L: Narrow
42 O WNTC MAX Dev. Control
43~46 l NC NC
47 l/O SDA EEPROM data line

SEMICONDUCTOR DATA

Function
Narrow: H
Pin No. I/O Port Name
48 O SCL EEPROM clock line
49 I UL PLL unlock detection pin L: Unlock
50~54 l NC NC
55 O DT Common data output
56 O CK Common clock output
57 O NC NC
58 O LE PLL IC enable H: Iatches
59,60 O NC NC
Control of power supply (5M) for every-
61 O 5MC thing except the microcomputer and
EEPROM L: Power supply on
62 O AFCO AF amp power suppIy H: On
63 O RX TX/RX VCO select H: RX
64 O GLED Green LED control H: Lit
65 O RLED RED LED control H: Lit
66 O SAVE Save control H: Save off
67 O MUTE Mute control H: Mic mute, L: AF mute
68 O 5RC Reception power suppIy control L: On
Transmission power suppIy control
69 O 5TC
H: On
70~88 O NC NC
89 l VCC Microcomputer power supply, 5V input
A/D conversion reference voltage; con-
90 l VREF
nected to Vcc
A/D converter power supply; connected
91 l AVSS
to Vss
92~95 O NC NC
96~100 I NC NC
FET: 2SK2596-E (Q105)
■ Absolute Maximum Ratings (Ta=25°C)
Item VDSS VGSS ID
Rating 17V ±10V 0.4A
FET: 2SK2595-E (Q107)
■ Absolute Maximum Ratings (Ta=25°C)
Item VDS VGSS ID
Rating 17V ±10V 1.1A
TK-3107G
Function
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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