Kenwood TK-2140, Руководство по обслуживанию

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TK-2140
32
ADJUSTMENT / TERMINAL FUNCTION
CN301 1 NC - Not used
2 RXD I Serial data input
3 TXD O Serial data output
4 5M O 5V output
5 E - GND
6 NC - Not used
7 PF I Programmable function key input
8 PTT I External PTT input
9 ME - External microphone ground
10 ENC I External microphone input
11 MSW I EXT/INT MIC switch input
12 SP- O BTL for external
13 SP+ O BTL output - for external
14 SSW I EXT/INT speaker switch input
CN302 1 NC - Not used
2 LEDK I Backlight LED control
3 LEDA O Backlight LED control
4 CKEY I C key input
5 BKEY I B key input
6 AKEY I A key input
7 SKEY I S key input
8 VEE - GND
9 SDO O Serial data outpuut for LCD
10 SID I Serial data input for LCD
11 SCLK O Clock data output for LCD
12 CS O LCD chip select output
13 VCC - 5V
14 GND - GND
CN303 PTT I PTT key input
LAMP I SIDE1 key input
CN304 MON I SIDE2 key input
GND - GND
CN305 SP+ O BTL for internal
SP- O BTL output - for internal
CN306 EMC+ O Internal microphone input
EMC- - Internal microphone ground
CN No. Pin No. Name I/O Function
TX-RX UNIT (X57-6400-10): TX-RX section
CN400 1 S_DET I Battery detect input
2 AUXKEY I AUX key input
3 GND - GND
4 5M - 5V
5 VOL I Volume level input for audio control
6 CH1 I Encoder pulse input
7 CH2 I Encoder pulse input
8 GND - GND
9 CH3 I Encoder pulse input
10 CH4 I Encoder pulse input
11 SB I Power input after passing through the fuse
12 SB I Power input after passing through the fuse
13 B O Power output after power switch
14 B O Power output after power switch
CN300, 1 XOUT O 3.589545MHz output
500 2 GND - GND
3 AFCLR O MSK flame reset output
4 AFRDT O MSK modulation data output timing pulse input
5 AFRTM O MSK demodulation data output timing pulse input
6 AFTRD O MSK demodulation data input
7 AFMSKE O MSK modulation enable
8 CLK Clock data input
9 AFDAT O MSK data output
10 AFREG2 O AF IC register switching data output 2
11 AFREG1 O AF IC register switching data output 1
12 AFSTB O AF IC data strobe output
13 5CNS 5V
14 MMUTE O MIC mute
15 5TC - 5T control
16 5C - 5V
17 GND - GND
18 MICI MIC input
19 PTT I PTT key input
20 ME - MIC ground
21 ME - MIC ground
22 TXHSD O HSD output (TX)
23 GND - GND
24 TXAF O Audio output (TX)
25 RXAF1 I Audio input (TX)
26 5RC - 5R control
27 HSDIN O HSD output (RX)
28 RXAFO O Audio output (RX)
29 GND - GND
30 GND - GND
CN No. Pin No. Name I/O Function
Adjustment points
TX-RX unit (X57-6400-10)
component side view
TC2
TC1
CV
BPF
ANT
X57-6400-10
Foil side view