Kenwood TKR-750, Руководство по обслуживанию

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TKR-750
46
Final Unit (X45-373X-XX)
Connector Terminal Terminal I/O Terminal function
No. No. Name
CN1 DRV I TX driver input signal (Coaxial)
CN3 1 TMP O High temperature detector signal
output for fan action
To X57 2 BUP O Main DC/BACKUP status output
(A/2) 3 PDT O RF power down signal output
TX-RX 4 FAS I Fan control signal input
unit 5 PC I TX power control signal input
6 8T I 8V input during transmission
7 NC – Reserved
8 GND – Ground
CN4 FAB O Power supply output for cooling fan
FAG O Fan ground
CN5 1 E – Ground
2 B O Power supply output
3 B O Power supply output
CN6 1 Main DC I Power supply input (from Main DC
terminal)
CN7 1 BACKUP I Power supply input (from BACKUP
terminal)
CN8 1 GND – Ground
Display Unit (X54-3330-21) (A/2)
Connector Terminal Terminal I/O Terminal function
No. No. Name
CN501 1 HK I Hook detection input/RXD input
2 MIC I MIC signal input
To X54 3 MIG – MIC ground
(B/2) 4 PTT I/O PTT input/TXD output
display 5 GND – Ground
unit 6 NC – No connection
7 SB O Power supply output after power switch
8 NC – No connection
9 GND – Ground
10 5M O Common 5V output
11 VLI I Volume control input for AF signal
CN502 1 MIG – MIC ground
2 MIC O MIC signal output
To X57 3 VLI O Volume control output for AF signal
(B/2) 4 5C I Common 5V input
TX-RX 5 K4 I KEY input 4
unit 6 K5 I KEY input 5
control 7 K2 O KEY output 2
section 8 K3 O KEY output 3
9 K1 O KEY output 1
10 HK/RXD O Hook detection output/RXD output
11 SOE I Output enable for shift register
12 PTT/TXD I/O PTT output/TXD input
Connector Terminal Terminal I/O Terminal function
No. No. Name
13 STB1 I Strobe data for shift register
14 CLK I Clock data input
15 DAT I Serial data input
16 PSW O Power switch output
17 GND – Ground
18 NC – No connection
19 SB I Power supply input after power switch
20 SB I Power supply input after power switch
Display Unit (X54-3330-21) (B/2)
Connector Terminal Terminal I/O Terminal function
No. No. Name
CN601 1 VLI O Volume control output for AF signal
2 5M I Common 5V input
To X54 3 GND – Ground
(A/2) 4 NC – No connection
display 5 SB I Power supply input after power switch
unit 6 NC – No connection
7 GND – Ground
8 PTT I/O PTT output/TXD input
9 MIG – MIC ground
10 MIC O MIC signal output
11 HK O Hook detection output/RXD output
J601 1 NC – No connection
(Mic jack) 2 SB O Power supply output after power switch
3 GND – Ground
4 PTT/TXD I/O PTT input/TXD output
5 MIG – MIC ground
6 MIC I MIC signal input
7 HK/RXD I Hook detection input/RXD input
8 NC – No connection
TX-RX Unit (X57-695X-XX) (A/2) : TX-RX Section
Connector Terminal Terminal I/O Terminal function
No. No. Name
CN1 – – O Use for RX helical BPF tuning (Coaxial)
CN2 – – I Use for RX MCF tuning
CN3 – – O Use for RX frequency adjustment
(Coaxial)
CN4 – – O Use for RX MCF tuning
CN14 1 NC – No connection
2 DET O Detection signal output
To X57 3 NC – No connection
(B/2) 4 GND – Ground
control 5 ASQ O Squelch signal output
section 6 RSSI O RSSI signal output
of TX-RX 7 SC O Squelch control signal output
unit 8 DP I Data input for PLL
9 CP I Clock input for PLL
TERMINAL FUNCTION