Kenwood TK-80 Service Manual page 25

TK-80
Pin No. Pin Name Port Name
10 B7
11 B6
12 B5
I/O Port Expansion: BU2099FV (TX-RX unit IC15)
Pin No. Pin Name Port Name
6 IF1
7 IF2
8 IF3
9 IF4
10 AGS
11 NBS
12 RBK
13 PL
14 AIP
I/O Port Expansion: BU2099FV (TX-RX unit IC16)
Pin No. Pin Name Port Name
6 AM
7 SSB
8 SCB
9 NC
10 VOXS
11 PMU
12 VCAS
13 ABK
14 MMU1
15 MMU2
Band Data Decoder: BU2099FV (Final unit IC4)
Pin No. Pin Name Port Name
6 18AT
7 LPF6
8 LPF5
9 LPF2
10 LPF1
11 28AT
12 24AT
13 21AT
14 LPF3
15 LPF4
24
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SEMICONDUCTOR DATA
O3 RX band select 7. ON: 14.5MHz≤f<21.5MHz, OFF: Other
O2 RX band select 6. ON: 10.5MHz≤f<14.5MHz, OFF: Other
O1 RX band select 5. ON: 8.0MHz≤f<10.5MHz, OFF: Other
Q0 IF filter selection. ON: 6.0kHz selection, OFF: Other
Q1 IF filter selection. ON: 2.7kHz selection, OFF: Other (option)
Q2 IF filter selection. ON: 2.2kHz selection, OFF: Other
Q3 IF filter selection. ON: 0.5kHz selection, OFF: Other (option)
Q4 Selection of constant during AGC. ON: AGC fast, OFF: AGC slow
Q5 NB setting. ON: NB off, OFF: NB on
Q6 RF blanking. ON: RBK on, OFF: RBK off
Q7 VSFM, VSRM op-amp gain selection. ON: Low gain, OFF: High gain
Q8 AIP setting. ON: AIP on, OFF: AIP off
Q0 Mode selection. ON: During AM mode, OFF: Other
Q1 Mode selection. ON: During SSB mode, OFF: Other
Q2 Mode selection. ON: During SSB mode or CW mode, OFF: Other
Q3 Not used (usually ON)
Q4 VOX setting. ON: VOX on, OFF: VOX off
Q5 AF blanking during power supply OFF. ON: ABK on, OFF: ABK off
Q6 VCA selection. ON: VR, OFF: D/A
Q7 AF blanking. ON: ABK on, OFF: ABK off
Q8 Microphone mute 1 (input side). ON: Normal, OFF: During microphone mute
Q9 Microphone mute 2 (output side). ON: During microphone mute, OFF: Normal
Q0 Selected for 18AT. ON: 14.5MHz≤f<19.0MHz, OFF: Other
Q1 Selected for LPF6. ON: 21.5MHz≤f, OFF: Other
Q2 Selected for LPF5. ON: 14.5MHz≤f<21.5MHz, OFF: Other
Q3 Selected for LPF2/4AT. ON: 2.4MHz≤f<4.5MHz, OFF: Other
Q4 Selected for LPF1. ON: f<2.4MHz, OFF: Other
Q5 Selected for 28AT. ON: 27.0MHz≤f, OFF: Other
Q6 Selected for 24AT. ON: 22.0MHz≤f<27.0MHz, OFf: Other
Q7 Selected for 21AT. ON: 19.0MHz≤f<22.0MHz, OFF: Other
Q8 Selected for LPF3/7AT. ON: 4.5MHz≤f<8.0MHz, OFF: Other
Q9 Selected for LPF4/14AT. ON: 8.0MHz≤f<14.5MHz, OFF: Other
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