Kenwood KDC-X679 Service Manual page 6

KDC-X679
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
36 DSI
37 PM_MOT1
38 PM_MOT2
39 EPM
40 PM_OPEN
41 PM_CLOSE
42 PAN_RST
43 PM_DET
44 SC_CON
45 CD_DISC12_SW
46 CD_LOS_SW
47 CD_MUTE_R
48 CD_MUTE_L
49 CD_MRST
50 CD_MSTOP
51 CD_DISC8_SW
52 CD_LOE_LIM_SW
53 CD_LOEJ
54 CD_MOTOR
55 TUN_TYPE1
56 TUN_TYPE0
57 PON_ILL
58 PON_CD
59 PON
60 VCC2
61 COR_DET
62 VSS
63~65 TYPE_0~TYPE_2
66,67 NC
68 OPEL_DATA
69 OPEL_CLK
70 OPEL_CE
71 EXT_CONT
72 P_CON
6
Module I/O Application
EXTRA I/O (D) SI control terminal
P-MECHA O Panel motor control 1
P-MECHA O Panel motor control 2
I FLASH EPM input terminal
P-MECHA I Panel full open detect
P-MECHA I Panel mechanism close detect
Panel µcom reset output
to PANEL O
P-MECHA I Panel mechanism detect
Between panel Communication control
to PANEL O
(FLASH CE)
CD I CD detect terminal (12cm)
CD I CD loading detect terminal
CD I CD MUTE (Rch) request terminal
CD I CD MUTE (Lch) request terminal
CD mechanism µcom RST terminal
CD O
CD mechanism µcom stop terminal
CD O
CD I CD detect terminal (8cm)
CD I CD detect terminal (chucking SW)
CD I/O CD motor control terminal
CD O CD motor control terminal
TUNER I Destination setting 1
TUNER I Destination setting 0
Power supply I/O Key ILL power supply control
CD O CD WMA power supply control terminal
Power supply I/O Power supply control
-
TYPE I E2PROM write request
-
TYPE I Destination switching
O Not used
EXTRA I/O External display DATA
EXTRA I/O External display CLK
EXTRA I/O External display control request
EXTRA O External amp control
Power supply I/O External amp control terminal
Truth Value
Processing Operation Description
Table
OFF : Hi-Z, Panel come off : Pulse driven,
ILL_ON and OPEN (Power_ON) : H
w
Refer to truth value table.
w
Refer to truth value table.
e
Refer to truth value table.
e
Refer to truth value table.
Normal : H, Reset, Momentary power down, Panel
is detached and 11 minutes after ACC_OFF : L
H : Function check
POWER OFF, ACC OFF : L
L : Rch mute request
L : Lch mute request
H : Normal, L : Reset
H : Mechanism µcom operation,
L : Mechanism µcom stop
H : Loading complete, L : No disk
i
Refer to truth value table.
i
Refer to truth value table.
t
Refer to truth value table.
t
Refer to truth value table.
ON : H, OFF : Hi-Z
CD : L, Other than CD : H, When RESET,
quicker than M-STOP L, Normal CD : NC
Power ON : H, Power OFF : Hi-Z
H : Write
y
Refer to truth value table.
Output : L
Not used
Not used
Not used
Power ON : H, Power OFF : Hi-Z, All OFF : Hi-Z