Kenwood RXD-302 Service Manual page 6

Mini hi-fi component system
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3 7 6 3 1 5 1 5 0
1-3 Pin description
Pin No.
Name
I/O
1
PLL-CE
O
CE OUTPUT (LC72131)
2
XRST
I
RESET (CXD2589Q)
3
PLL-DO
O
DATA OUTPUT (LC72131)
4
PLL-DI
I
PLL DATA INPUT (LC72131)
5
PLL-CLK
O
CLK OUTPUT (LC72131)
6
SO
O
DATA OUTPUT (CXD2589Q)
7
SQSO
I
SUB CODE INPUT(CXD2589Q)
8
SQCK
O
SUB CODE CLOCK OUTPUT (CXD2589Q)
9
XLAT
O
LATCH OUTPUT (CXD2589Q)
10
NOT USED
11
SENS1
I
SENS1(CXD2589Q)
12
RESET
I
uCOM RESET
13
POWER DOWN
I
POWER DOWN INPUT
14
SENS2
I
SENS2(CXD2589Q)
15
VSS
GND
16,17
X1,2
Xtal 6.0MHz
18
VDD1
+5V
19-21
KEY1-3
I
KEY 1-3 INPUT
22
VSS
GND
23
L-METER L
I
LEVEL METER L,R
24
I
NOT USED
25
MODE-SW
I
DECK MODE SWITCH
T E
L 1 3 9 4 2 2 9 6 5 1 3
26
BAND
I
BAND SWITCH
27
SCOR
I
SUB-CODE SYNCH DETECT (CXD2589Q)
28
PROTEC
I
PROTECTION IN
29
REMOTE
I
REMOTE SIGNAL INPUT
30,31
ENC A,B
I
VOLUME ENCODER INPUT A,B
32
PIC-UP
I
PICK UP UP SWITCH
33
PIC-DOWN
I
PICK UP DOWN SWITCH
34
DISC-COUNT
I
DISC COUNTER SWITCH
35
T.T-SW
I
TURNTABLE SWITCH
36
TRAY-OPEN
I
TRAY OPEN SWITCH
37
TRAY-CLOSE
I
TRAY CLOSE SWITCH
38
MOTOR+
O
T.T./U.D MOTOR +
39
MOTOR-
O
T.T./U.D MOTOR -
40
TRAY-M +
O
TRAY MOTOR +
41
TRAY-M -
O
TRAY MOTOR -
42
T,T-MSP
O
TURNTABLE MOTOR SPEED
43
CD-VDD
O
CD VDD CONTOROL(BA5936S MUTE)
44-51
O
NOT USED
52
LED-STBY
O
LED STANDBY ON/OFF
53
LED-TIMER
O
LED TIMER ON/OFF
54,55
DECK A,B
I
DECK MECHA MODE SWITCH A,B
56
VDD
+5V
www
57
VSS
GND
58,59
HALF A,B
I
DECK MECHA HALF SWITCH A,B
60
REC-FEW-SW
I
REC FEW SWITCH
.
Description
Active
H: DATA
L: ADDRESS
L: ON
H: NORMAL L: RESET
L: POWER DOWN
H: PROTECT
L: ON
H: CD
L: ON
L: ON
H: STOP
L: PLAY
L: EXSIT
x
a o
y
L: HOOK EXSIT
i
8
Pin No.
Name
I/O
61
REC-REV-SW
I
REC REV SWITCH
62
A-PH
I
A DECK REEL SENSOR
63
B-PH
I
B DECK REEL SENSOR
64
DECK VCC
O
DECK MECHA VCC
65
A SOL
O
A DECK SOLENOID CONTROL
66
B SOL.
O
B DECK SOLENOID CONTROL
67
DUBBING
O
DUBBING CONTROL
68
REC
O
REC CONTROL
69
REC-MUTE
O
REC MUTE
70
BIAS
O
BIAS ON/OFF CHANGEOVER CONTROL
71
A/B
O
A/B DECK MECHA CHANGEOVER
72
BEET CANCEL
O
REC BEET CANCEL
73
TAPE-MUTE
O
DECK PLAY OUTPUT MUTE
74-78
NOT USED
79
SP-RLY
O
SPEAKER RELAY ON/OFF
80
NOT USED
81
MODE-SW4
I
MODE SWITCH 4 SHORT WAVE
82
VSS
GND
83,84
ENC A,B
I
JOG ENCODER(MULTI CONTROL) A,B
85
FOK
I
FOCUS OK OUTPUT (CXD2589Q)
86
STEREO
I
FM STEREO IN
Q Q
87
SDA
I/O
AUDIO CONTROL IC (TDA7439) DATA
3
7
6
3
88
SCL
O
AUDIO CONTROL IC (TDA7439)CLOCK
89
VSS2
GND
90
VDD2
+5V
91
NOT USED
92
MUTE
O
SYSTEM MUTE
93
TUNER-MUTE
O
TUNER MUTE
94
AUDIO-MUTE
O
LINE (AUDIO) MUTE
95
EX. BASS
O
EX BASS CONTROL
96
NOT USED
97
FL-CS
O
FL CONTROLLER (M66004DP) CS
98
FL-RESET
I
FL CONTROLLER (M66004DP) RESET
99
CLOCK
O
CLOCK OUTPUT (CXD2589Q)
100
2589Q MUT
I
MUTING SIGNAL INPUT (CXD2589Q)
u 1 6 3
.
2
4
9
9
8
Description
H: PLAY
H: ON
H: ON
H: DUBBING L: NORMAL
H: REC
H: OTHER
H: REC
H: A DECK
H: ON
H: ON
H: ON
H: EXSIT
H: ON
H: MONO
1
5
1
5
0
8
9
2
4
H: OFF
H: ON
H: ON
H: ON
H: ON
m
c o
2
9
9
Active
L: HOOK EXSIT
L: STOP
L: OFF
L: OFF
L: OTHER
L: REC
L: OTHER
L: B DECK
L: OFF
L: OFF
L: OFF
L: NONE
L: ON
L: STEREO
9
8
2
9
9
L: ON
L: OFF
L: OFF
L: OFF
L: ON
L: ON

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