Pin Description Of Main Microprocessor - Kenwood RXD-M32 Service Manual

5-3 Pin Description of Main Microprocessor

Pin No. Pin Name
1 CD_PROTECTION
2 CD_OPEN_SW
3 CD_OPEN_M
4 CD_CLOSE_M
5 CD_CLOSE_SW
6 RDS_DATA
7 CE
8 BYTE
9 CNVSS
10 XCIN
11 XCOUT
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC(B.U)
17 NMI
18 REMOCON
19 RDS_CLK
20 SCOR
21 SCLK
22 SENSE
23 CD_CLK
24 XLAT
25 CD_DATA
26 SYSM
27 CDRST
28 SQCK
29 SUBQ
30 NC
31 K_DATA
32 MD_DATA
33 MD_SCK
34 LED2
35 LCD_DATA
36 NC
37 LCD_CLK
38 LED1
39 ENC1
40 ENC2
41 DECK_CMP
42 DECK_SOL
43 PLAY_SW
44 CrO2_SW
45 PACK_SW
46 REC_F_SW
47,48 NC
49 REC_R_SW
50 NORMAL_BIAS
CIRCUIT DESCRIPTION
I/O
I Detection port for CD protection.
I CD open detection switch input.
O CD tray motor control output (open).
O CD tray motor control output (close).
I CD close detection switch input.
I RDS data input.
I Power failure input port.
I GND.
I GND.
I Timer clock input (32.768kHz).
O Timer clock output (32.768kHz).
I Reset signal input for microprocessor.
O Main clock oscillator(10MHz).
I GND.
I Main clock oscillator(10MHz).
I Power supply(+5.0v).
I Connected to VCC.
I Remote control signal input.
I RDS clock input.
I Sub code synchronized signal input.
O CD sense data read out clock.
I CD sense input.
O CD DSP clock output.
O CD DSP latch output.
O CD DSP data output.
O CD DSP system mute output.
O CD DSP reset signal output.
O CD sub code clock output.
I CD sub code input.
O Unused.
O MD data output (MD version only).
I MD data input (MD version only).
O MD clock output (MD version only).
O Control port of standby/timer LED(red).
O Data output to LCD driver IC.
O Unused.
O Clock output to LCD driver IC.
O Control port of standby/timer LED (green).
I Rotary encoder input (up).
I Rotary encoder input (down).
O Deck capstan motor control.
O Deck solenoid control.
I Deck play switch input.
I Deck CrO2 detection switch input.
I Deck pack switch input.
I Deck forward rec switch input.
- Unused.
I Deck reverse rec switch input.
O Deck bias (Normal/CrO2) change-over.
RXD-M32
Description
H = NORMAL L = PROTECTION ON
H = OFF L = ON
H = OFF L = ON
H = OFF L = ON
H = ON L = OFF
H = AC ON L = AC OFF
H = NORMAL L = RESET
L = LATCH
L = ON
L = ON
H = CrO2 L = Normal
H = OFF L = ON
H = OFF L = ON
H = OFF L = ON
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