Kenwood TKR-750, Руководство по обслуживанию

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TKR-750
18
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Pin Function
Pin No. Name I/O Function
1 IO5 I/O Aux I/O No.5 (Acc D-sub 25 pin)
2 IO4 I/O Aux I/O No.4 (Acc D-sub 25 pin)
3 5TN I 5-tone input
4 IO2 I/O Aux I/O No.2 (Acc D-sub 25 pin)
5 IO1 I/O Aux I/O No.1 (Acc D-sub 25 pin)
6 BYTE – 5V
7 CNVss – GND
8 ENT O TX PLL IC enable
9 ENR O RX PLL IC enable
10 Reset I Microcomputer reset input
11 Xout – 14.7456MHz
12 Vss – GND
13 Xin – 14.7456MHz
14 Vcc – 5V
15 NMI – Not used
16 BUP I Backup battery detect
H : Backup, L : Main
17 TEMP I Temperature detect for fan action
H : Temp high, L : Temp low
18 INTy I INT request from DSP
19 CLK O Common clock
20 DAT O Common data
21 SFT O Beat shift H : On, L : Off
22 LD1 O Control D/A converter LD
23 IO3 I/O Aux I/O No.3 (Acc D-sub 25 pin)
24 BEEP O Beep output
25 LD2 O D/A converter 2LD
26 RS O DSP reset H : Off, L : On
27 EPTT O Acc PTT (Acc D-sub 25 pin)
H : Off, L : On
28 PTT I Mic PTT H : Off, L : On
29 TXD1 O Mic TXD
30 RXD1 I Mic HOOK/RXD
31 SCLK O EEPROM clock
32 SDAT I/O EEPROM data
33 TXD0 O Acc TXD (Acc D-sub 25 pin)
34 RXD0 I Acc RXD (Acc D-sub 25 pin)
35 CP O PLL IC clock
36 DP O PLL IC data
37 RDY I CPU ready input
Pin No. Name I/O Function
38 ALE – Not used
39 HOLD – Not used
40 HLDA – Not used
41 BCLK O Not used
42 RD O Flash ROM WR/DSP HDS1
43 BHE – Not used
44 WR O Flash ROM WR/DSP HDS2
45 STB2 O Control shift register STB
46 INTx O DSP interrupt H : Off, L : On
47 HCS O DSP HCS
48 CS0 O Flash ROM CS
49 A19 O Not used
50~59 A18~A9 O Flash ROM address bus
60 Vcc – 5V
61 A8 O Flash ROM address bus
62 Vss – GND
63~70 A7~A0 O Flash ROM address bus
71 EMON I Acc monitor (Acc D-sub 25 pin)
H : Off, L : On
72 LDR I RX VCO lock detect
H : Lock, L : Unlock
73 LDT I TX VCO lock detect
H : Lock, L : Unlock
74,75 KEY5,KEY4 O Key matrix output
76~78 KEY3~KEY1 I Key matrix input
79~86 D7~D0 I/O Flash ROM data bus
87 FWD I RF power down level input
88 RSSI I RSSI level input
89 ASQ I Squelch level input
90 VLI I Volume level input
91 BATT I Power supply voltage level input
92 AI1 I Aux input No.1 (Acc D-sub 25 pin)
93 AI2 I Aux input No.2 (Acc D-sub 25 pin)
94 AVss – GND
95 AI3 I Aux input No.3 (Acc D-sub 25 pin)
96 Vref – 5V
97 AVcc – 5V
98 STB1 O Display shift register STB
99 SOE O Shift register common OE
100 IO6 I/O Aux I/O No.6 (Acc D-sub 25 pin)
SEMICONDUCTOR DATA
Main CPU : 30622M4A-487GP (TX-RX unit IC604)