Kenwood TK-80 Service Manual page 24

Pin No. Pin Name Port Name I/O
4 A1 A1
5 A0 A0
6 NC P27
7 FEN4 P26
8 FEN3 P25
9 FEN2 P24
10 FEN1 P20
11 VEN1 P21
12 LEN1 P22
13 DEN2 P23
14 DEN1 P10
15 PLS P11
16 PEN1 P12
17 NC NC
18 VB3 P13
19 VB2 P14
20 VB1 P15
21 TSO P16
22 TTO P17
23 Vcc Vcc
24~31 D7~D0 D7~D0
32 RES RESET
33,34 NC NC
35 WR WR
36 PR22 P07
37 PR21 P06
38 PR12 P05
39 PR11 P04
40 APRE P03
41 ATA P02
42,43 NC P01,P00
44 RD RD
I/O Port Expansion: UPD6345GS (TX-RX unit IC10)
Pin No. Pin Name Port Name
5 B4 O8
6 B3 O7
7 B2 O6
8 B1 O5
9 B8 O4
SEMICONDUCTOR DATA
I Port address 1
I Port address 0
- Not used
O Serial parallel enable, final unit IC4
O Serial parallel enable, TX-RX unit IC16
O Serial parallel enable, TX-RX unit IC15
O Serial parallel enable, TX-RX unit IC10
O D/A enable, TX-RX unit IC13
O LCD driver enable, LCD ASSY IC1
O DDS enable, TX-RX unit IC501
O DDS enable, TX-RX unit IC500
O FSK key select. H: FSK key, L: Selective call key
O PLL enable, TX-RX unit IC502
- Not used
O VCO select. H: 21.5MHz≤f, L: Other
O VCO select. H: 10.5MHz≤f<21.5MHz, L: Other
O VCO select. H: f<10.5MHz, L: Other
O External AT control output
O External AT control output
I Power supply
I Data 7~0
I Reset input
- Not used
I Write control input
O Motor 2 rotation direction control
O Motor 2 rotation direction control
O Motor 1 rotation direction control
O Motor 1 rotation direction control
O Internal AT setting. H: Microprocessor, L: Analog circuit
O Internal AT setting. H: Line input, L: Cut away
O Not used
I Readout control input
RX band select 4. ON: 4.5MHz≤f<8.0MHz, OFF: Other
RX band select 3. ON: 2.5MHz≤f<4.5MHz, OFF: Other
RX band select 2. ON: 1.605MHz≤f<2.5MHz, OFF: Other
RX band select 1. ON: f<1.605MHz, OFF: Other
RX band select 8. ON: 21.5MHz≤f, OFF: Other
Description
Description
TK-80
23