Kenwood KDC-1032 Service Manual page 6

KDC-1032/132/132CR
KDC-133/233/234SGY
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
56 LO/EJ
57 M-STOP
58 M-RST
59 M-MUTE
60 RESET
61 REMO
62 R-CLK
63 NC
64 LOS SW
65 KEY-REQ
66 8EJE SW
67 VSS0
68 VDD1
69 X2
70 X1
71 IC
72 XT2
73 XT1
74 VDD0
75 AVREF0
76 S-METER
77 NOISE
78 PHONE
79 NC
80 AVCONT
Truth value table
q Destination
TYPE2 (pin29) TYPE1 (pin30)
0
0
0
0
1
1
1
1
6
I/O Application
I/O CD mechanism Loading/Eject switching
O CD mechanism Stop output
O CD mechanism Reset output
I CD mechanism mute input
System µ-com reset input
I
I Remote controller input
I RDS clock input
-
I CD mechanism Loading SW detection
Key input detection
I
(Connection with pin 11 L-DATAL)
I 12cm DISC detection
-
-
- MAIN X'tal oscillation circuit
- MAIN X'tal oscillation circuit
- TEST
- NC
- VDD
-
AD converter reference voltage
-
(Connection to pin 80 AVCONT)
I S-meter input
I NOISE detection (FM)
I 2way Mute
- Not used (output L)
O AD reference voltage control
TYPE0 (pin31)
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
Truth value table
H: Eject, L: Loading
H: CD ON, L: Stop
H: Normal, L: Mechanism reset
H: Mute OFF, L: Mute ON
L-output for models without RDS
Not used (output L)
H: No DISC, L: DISC IN (Loading start)
H: No key input
L: Key input (Started to read Edge Key Data)
L: 12cm DISC
4.19MHz X'tal connection
4.19MHz X'tal connection
Open
VDD connection
2.5V or more: NAVI mute, 1.0V or less: TEL mute
L-output to the model without Phone mute
H: When AD converter is used
The same timing as P. ON
DESTINATION
K KDC-1032/132/132CR
- -
E KDC-234SGA/334SA/334SAY/334SG/334SGY
- -
- -
M KDC-132/233
- -
J RDT-111
Processing Operation Description
MODEL