Terminal Function - Kenwood TK-80 Service Manual

FINAL UNIT (X45-3520-21) (A/2)
CN No. Pin No. Pin Name
CN1 Coax. DRV Drive input
CN2 1 FAN+ Power supply for fan
2 FAN– Power supply for fan
CN3 1 TT Antenna tuner control
2 TS Antenna tuner control
3 FEN4 Shift register 4 enable
4 UCK Shift register control clock
5 UDA Shift register control data
6 DGND Digital GND
7 THP Thermal protection.
High when it operates
8 BOVR Low: DC over voltage
(approx. 19V or more)
9 PSC High when power switch is turned
10 5A 5V
11 14V 14V
12 14S 14V (switched)
13 8A Analog 8V
14 GND GND
15 NC No connection
16 NC No connection
CN4 1 GND GND
2 TS Antenna tuner control
3 TT Antenna tuner control
4 AGND Analog GND
5 14S 14V (switched)
CN5 Coax. AT1 AT signal 1
CN6 Coax. AT2 AT signal 2
CN7 Coax. RAT Receive signal output
CN9 ANT.GND Antenna GND
CN10 1 GND GND
2 VSF Forward wave voltage
3 VSR Reflected wave voltage
4 TXB 8V when transmitting
5 14AG 14V (for audio IC) GND
6 14AF 14V (for audio IC)
7 8A 8V
8 14S 14V (switched)
CN11 1 GND GND
2 4AT AT band data 2.40000~4.49999MHz

TERMINAL FUNCTION

Function
CN No. Pin No. Pin Name
CN11 3 7AT AT band data 4.50000~7.99999MHz
4 14AT AT band data 8.00000~14.49999MHz
5 18AT AT band data 14.50000~18.99999MHz
6 21AT AT band data 19.00000~21.99999MHz
7 24AT AT band data 22.00000~26.99999MHz
8 28AT AT band data 27.00000~29.99999MHz
W1 14V 14V
14V 14V
GND GND
GND GND
W2 ANT ANT
FINAL UNIT (X45-3520-21) (B/2)
CN No. Pin No. Pin Name
CN800 1 PH1 Headphone output 1
2 PH2 Headphone output 2
3 PHG Headphone GND
J800 PHONES Headphone output
CONTROL UNIT (X53-3570-21)
CN No. Pin No. Pin Name
CN1 1 RAF Reference audio voltage
2 DGND Digital GND
3 5C 5V for power switch
4 5A 5V
5 8A 8V
6 14S 14V (switched)
7 LEN1 LCD control enable
8 LBLK LCD blanking
9 SO Key matrix select
10 K4 Key matrix
11 K3 Key matrix
12 K2 Key matrix
13 K1 Key matrix
14 K0 Key matrix
15 EDP2 Encoder pulse
16 EDP1 Encoder pulse
17 PSW High when the power switch is on
18 LCK LCD control clock
19 LDA LCD control data
20 MD Microphone DOWN switch
TK-80
Function
Function
Function
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