Pin Description Of Microprocessor - Kenwood RXD-V333 Service Manual

4-4 Pin Description of Microprocessor

Pin No. Pin Name
1 CD5V
2 CE2
3 SD
4 ST
5 PLL CE
6 ECHO MUTE
7 PLL CLK
8 BYTE
9 CNVSS
10 XCIN
11 XCOUT
12 RST
13 X OUT
14 VSS
15 X IN
16 VCC
17 NC
18 REM
19 ESS ST
20 ESS ST
21 CE
22 BEEP SOUND
23 PLL DO
24 B PLAY
25 R REC
26 B PACK
27 A PLAY
28 ESS CLK
29 ESS DIN
30 ESS DO
31 FL DATA
32 A PACK
33 FL CLK
34 FL CE
35 FL RST
36 F REC
37 B CrO2
38 A CrO2
39 A SOL
40 CPM
41 B SOL
42 NOR
43 BIAS
44 NC
45 R/P
46 A/B
47 A EQ
48 REC MUTE
49 LINE MUTE
50 B EQ
CIRCUIT DESCRIPTION
I/O Description
O Control port of +5V AVR(X13,IC4).
I Unused.
I SD detection input.
I Stereo detection input.
O PLL IC chip enable.
O Control port of audio muting for echo.
O PLL IC clock output.
- Connected to GND.
- Connected to GND.
I Timer clock input(32.768kHz).
O Timer clock output(32.768kHz).
I Reset signal input.
O Main clock output(10MHz).
- Connected to GND.
I Main clock input(10MHz).
- u-com power supply(+5.0V).
- Connected to VCC.
I Signal input of remote control.
I MPEG CS
I MPEG CS
I Back up detection input.
O Beep sound output.
I PLL IC data input.
I Detection switch input of head position for B deck
I B deck reverse recording prohibition detection switch
I B deck cassette tape detection switch input.
I Detection switch input of head position for A deck
I Clock input from MPEG decoder(X32,IC12).
I Data input from MPEG decoder(X32,IC12).
O Data output to MPEG decoder(X32,IC12).
O Data output to VFD dot driver.
I A deck cassette tape detection switch input.
O Clock output to VFD dot driver.
O Chip enable output to VFD dot driver.
O Reset signal output to VFD dot driver.
I B deck forward recording prohibition detection switch.
I B deck CrO2 detection switch input.
I A deck CrO2 detection switch input.
O A deck solenoid control.
O Deck capstan motor control.
O B deck solenoid control.
O B deck Normal/CrO2 changeover control.
O Deck bias on/off changeover control.
- Unused.
O Deck recording/playback changeover control.
O Deck A/B changeover control.
O A deck play back equalizer control.
O Deck recording mute control.
O Deck line mute control.
O Equalizer control of B deck play back.
RXD-V333/V535//V636/V737
ACTIVE
H L
OFF ON
OFF ON
NORMAL RESET
AC ON AC OFF
CrO2 Normal
CrO2 Normal
NORMAL CrO2
ON OFF
RECORDING PLAY
B DECK A DECK
MUTE ON
MUTE ON
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