Kenwood KDC-MP333V Service Manual page 6

KDC-MP333V/MP333VS
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
40 TUN SD
41 TUN FANC OUT
42 TUN ADJ
43 N.C.
44 VFD CE
45~48 N.C.
49 DSI
50 EJECT
51 ENC CCW
52 ENC CW
53 PON PANEL
54~59 N.C.
60 VCC2
61 PON 5V
62 VSS
63 CD DISC12 SW
64 CD LOS SW
65 CD SCL
66 CD SDA
67 CD MUTE
68 CD MRST
69 CD MSTOP
70 N.C.
71 CD LOE LIM SW
72 CD LOEJ
73 CD MOTOR
74 PANEL DET
75 PARKING SW
76,77 N.C.
78 TUN TYPE2
79 TUN TYPE1
80 RDS NOISE
81 TUN SMETER
82 TYPE 3
6
I/O Application
I Tuner seach stop input
O Tuner block (in µ-com) check
For IC10 adjustment and E2PROM
I
writing request
- Not used
O VFD chip select control
- Not used
I/O DSI/EJECT LED control
I Terminal for another model
I Encoder input (Counterclockwise)
I Encoder input (Clockwise)
I/O Panel 5V control
- Not used
-
O SW5V control
-
I 12cm CD detection
I CD loading detection
O CD mechanism I2C clock output
I/O CD mechanism data input/output
I CD mute request
O CD mechanism µ-com reset
O CD mechanism µ-com stop
- Not used
I CD detection (Chucking SW)
I/O CD motor control
O CD motor control
I Terminal for another model
I Parking detection
- Not used
I Destination setting 2
I Destination setting 1
O
I S-meter input
I Destination switch
Truth
Processing / Operation / Description
Value Table
H: Station found, L: No station
During test mode,
E2P OK: H, E2P NG or normal conditions: L
During condition in ADJ=H, E2PROM is written
Output L fixed
Output L fixed
OFF: Hi-z, Panel OFF: Pulse drive
ILUMMI ON or panel open (Power ON): H
Pulse width detection
Pulse width detection
ON: L, Momentary power down or panel OFF or after
11 minutes after ACC OFF: Hi-Z
Output L fixed
POWER ON: L, POWER OFF: H
Pull-up (B.U.)
Pull-up (B.U.)
Pull-up (SW)
Pull-up (SW)
While CD playing, H: Normal, L: Mute request
H: Normal, L: Reset
H: Mechanism µ-com operates
L: Mechanism µ-com stops
Output L fixed
H: Loading ends, L: No disc
q
Refer to the truth value table
q
Refer to the truth value table
L: Parking, H: Parking cancelled
Output L fixed
w
Refer to the truth value table
w
Refer to the truth value table
Pull-down (GND)
e
Refer to the truth value table