Semiconductor Data - Kenwood TK-7302 Service Manual

MCU: TX-RX unit IC702
Pin No. Name I/O
1 LSDO O QT/DQT output
Voice/Beep/5-tone output for modu-
2 HSDO O
lation
3 LEDO O LED data
4 LECE O LED enable
5 LECL O LED clock
6 E - GND (Only for bus control)
7 CNVSS I CNVss for emulator (Hi: boot mode)
8 LELH O LED latch
9 LERE O LED reset
10 RESET - Reset
11 XOUT - Crystal (19.2MHz)
12 VSS - GND
13 XIN - Crystal (19.2 MHz)
14 VCC1 - +5V
15 5CC O 5C control
16 MKEY I/O Mic key
17 POWKEY I Power key input
18 INT I uCom stop
19 ASTSW O Assist speed up switch
20 BEEP O Beep for side tone
21~26 FNC8~FNC3 I/O Function P8~P3
27 FNC2 I/O Function P2 / Open drain port
28 FNC1 I/O Function P1 / Open drain port
29 ETXD I/O TXD for emulator
30 ERXD I/O RXD for emulator
31 ECLK - SCLK for emulator
32 EBSY - BUSY for emulator
33 TXD I/O To FPU
34 RXD I/O From FPU
35 HOOK I Hook
36 PTT I PTT
37 BSFT O Beat shift
38 LPOSW O Low power switch for reserve
39 EPM - EPM for emulator
40 PLLE O PLL IC chip select
41 PLDT O PLL IC data
42 PLCK O PLL IC clock
43 PA O Public address (SP2 H: mute / L: unmute)
44 ECE - CE for emulator
45 CDATA O Command data for BASEBAND IC
46 RDATA I Reply data for BASEBAND IC
47 SCLK O Serial clock for BASEBAND IC
48 CSN1 O Chip select for BASEBAND IC
49 SP MUTE O Speaker mute (SP1 H: mute / L: unmute)
50 9RC O 9R control

SEMICONDUCTOR DATA

Function
TK-7302/7302
Pin No. Name I/O
51 9TC O 9T control
52 SBC O SB control
53 3CC O 3C control
54 PLPS O Sleep mode function for PLL IC
55 KSSW O Kenwood sound switch
56 AMP SW O AF AMP (L: enable / H: disable)
57 EEPWP O EEPROM write protect
58 EEPDT I/O EEPROM data
59 EEPCK O EEPROM clock
60 VCC2 - +3.3V
61 SCRSW O Scrambler switch (Audio path)
62 VSS - GND
63 CSN2 O CSN for Vocoder IC
64 TXRX O TX/RX (H: RX / L: TX)
65 LEDM O LED dimmer
66 MBL O Pannel and mic key backlight
67 NC I
68 DST I Destination
69 REVP I Reverse power
70 FWDP I Forward power
71 IRQ2 I IRQ for Vocoder IC
72 IGN I Ignition
73 IRQ1 I Interrupt request for BASEBAND IC
74 RLED O Red LED for TX
75 GLED O Green LED for busy
76 BLED O Blue LED for reserve
77~79 KMO1~KMO3 O Key matrix output 1~3
80~82 KMI1~KMI3 I Key matrix input 1~3
83 UL I VCO unlock detect
84 AF MUTE O AF mute
85 MIC1MUTE O Internal mic mute
86 MIC2 MUTE O External mic mute
87 HSDI I High speed data input: 5-tone
88 LSDI I Low speed data input: QT/DQT/ (LTR)
89 TEMP2 I Temperature 2
90 TEMP1 I Temperature 1
91 BATT I Battery voltage
92 RSSI I RSSI input
93 SQIN I Squelch input
94 AVSS - GND
95 CV I VCO lock voltage
96 VREF - +5V
97 AVCC - +5V
98 NARROW O Wide/Narrow (Hi: Narrow)
99 WIDE O Wide/Narrow (Hi: Wide)
100 HORN O Horn alert
V /7302H/7302H
( )
Function
V
( )
15