Kenwood KDC-M7024 Service Manual page 7

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O
63 FPM MOTOR B O
64 FPM MOTOR F O
65 FPM MOTOR O O
66 FPM MOTOR C O
O_DATA I/O
67
NC O
O_CLK I/O
68
NC O
O_CE I/O
69
NC O
70 M_MUTER I
71 AVDD -
72 AVSS -
73 AVREF -
74 M_MUTEL I
75 PAN_DET I
PHONE I
76
NC I
77 FPM SW4 I
78 FPM SW1 I
79 FPM SW2 I
80 FPM SW3 I
81 FPM PHOUT I
82 S_METER I
83 NOISE I
84 IFC_OUT I
85 NC (POWER_DET) I
86 NC O
R_CLK I
87
NC I
88 LX_REQ_S I
89 KEY_REQ I
90 CD_SW1 I
91 CD_SW2 I
R_QUAL I
92
NC I
R_DATA I
93
NC I
94 LX_DATA_S I
95 LX_DATA_M O
96 LX_CLK I/O
97 L_DATAL I
98 L_DATAS O
99 L_CLK O
100 PLL_CLK I/O
Module Purpose / Description
P-mecha FPM mechanism (Slider) control.
P-mecha FPM mechanism (Slider) control.
P-mecha FPM mechanism (Angle) control.
P-mecha FPM mechanism (Angle) control.
Extra External display data input/output.
NC (Without external display model)
Extra External display clock input/output.
NC (Without external display model)
Extra External display chip enable input/output.
NC (Without external display model)
CD Mute request form CD mechanism. (R ch).
Connect to P_ON (29 pin).
CD Mute request form CD mechanism. (L ch).
To panel Panel E2PROM detection.
Extra PHONE detection.
NC (Without TEL-MUTE model)
FPM mechanism position detection,
P-mecha
mechanism detection.
P-mecha FPM mechanism position detection.
P-mecha FPM mechanism position detection.
P-mecha FPM mechanism position detection.
P-mecha FPM mechanism position detection.
Tuner S-meter detection.
Tuner FM noise detection.
Tuner F/E IFC OUT input.
Extra Power IC DC offset detection.
NC (Except J type)
Tuner RDS decoder clock input.
NC (Without RDS, RBDS model)
LX Receive request from external slave.
To panel Communication request from LCD driver
CD Loading switch detection.
CD 12cm disc detection switch.
Tuner RDS decoder QUAL input.
NC (Without RDS, RBDS model)
Tuner RDS decoder data input.
NC (Without RDS, RBDS model)
LX Data input from external slave.
LX Data output to external slave.
LX Clock input/output with external slave.
To panel Data input from LCD driver.
To panel Data output to LCD driver.
To panel Clock output to LCD driver.
Tuner Clock input/output with F/E.
KDC-M7024/MP822
Truth table Processing Operation
e
e
e
e
External display
Output : L
External display
Output : L
External display
Output : L
ON : L (CD)
ON : L (CD)
With : L, Without : H
TEL mute : 1V or less, NAVI mute : 2.5V or more,
J type 1V or less, 2.5V or more : NAVI mute
Connect to GND.
3.75V or more : No mechanism,
e
1.25V or more : H, Less than 1.25V : L
e
e
e
e
H : 2.2V or more
Refer to S03 F/E control.
Refer to S03 F/E control.
With station : 2.5V or more, refer to S03 F/E control.
03 model not used. Connect to GND.
Output : L
Connecto to GND.
Request : L
Loading start power off : L
12cm disc power off : L
Connecto to GND.
Connecto to GND.
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