Kenwood KDC-X769, Service Manual

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KDC-X769
7
Pin No. Pin Name I/O Module Purpose / Description Truth table Processing Operation
58 M_RST O CD Reset output to CD mechanism. Normally : H, Reset : L (Per mechanism control)
59 M_STOP O CD Stop request to CD mechanism. Stop : L, CD : H
60 CD_SW3 I CD DC down switch detection. Chucking : H
61 LO/EJ I/O CD CD mechanism loading/eject switch. Stop, brake : Hi-Z, Loading : L, Eject : H
62 MOSW O CD CD mechanism motor driver switch. Loading, eject, brake : H
63 FPM MOTOR B O P-mecha FPM mechanism (Slider) control.
e
64 FPM MOTOR F O P-mecha FPM mechanism (Slider) control.
e
65 FPM MOTOR O O P-mecha FPM mechanism (Angle) control.
e
66 FPM MOTOR C O P-mecha FPM mechanism (Angle) control.
e
67 NC O NC (Without external display model) Output : L
68 NC O NC (Without external display model) Output : L
69 NC O NC (Without external display model) Output : L
70 M_MUTER I CD Mute request form CD mechanism. (R ch). ON : L (CD)
71 AVDD -
72 AVSS -
73 AVREF - Connect to P_ON (29 pin).
74 M_MUTEL I CD Mute request form CD mechanism. (L ch). ON : L (CD)
75 PAN_DET I To panel Panel E2PROM detection. With : L, Without : H
76 NC I NC (Without TEL-MUTE model) Connect to GND.
77 FPM SW4 I P-mecha
FPM mechanism position detection,
e
3.75V or more : No mechanism,
mechanism detection. 1.25V or more : H, Less than 1.25V : L
78 FPM SW1 I P-mecha FPM mechanism position detection.
e
79 FPM SW2 I P-mecha FPM mechanism position detection.
e
80 FPM SW3 I P-mecha FPM mechanism position detection.
e
81 FPM PHOUT I P-mecha FPM mechanism position detection.
e
H : 2.2V or more
82 S_METER I Tuner S-meter detection. Refer to S03 F/E control.
83 NOISE I Tuner FM noise detection. Refer to S03 F/E control.
84 IFC_OUT I Tuner F/E IFC OUT input. With station : 2.5V or more, refer to S03 F/E control.
85 NC (POWER_DET) I Extra Power IC DC offset detection. 03 model not used. Connect to GND.
86 NC O NC (Except J type) Output : L
87 NC I NC (Without RDS, RBDS model) Connecto to GND.
88 LX_REQ_S I LX Receive request from external slave. Request : L
89 KEY_REQ I To panel Communication request from LCD driver
90 CD_SW1 I CD Loading switch detection. Loading start power off : L
91 CD_SW2 I CD 12cm disc detection switch. 12cm disc power off : L
92 NC I NC (Without RDS, RBDS model) Connecto to GND.
93 NC I NC (Without RDS, RBDS model) Connecto to GND.
94 LX_DATA_S I LX Data input from external slave.
95 LX_DATA_M O LX Data output to external slave.
96 LX_CLK I/O LX Clock input/output with external slave.
97 L_DATAL I To panel Data input from LCD driver.
98 L_DATAS O To panel Data output to LCD driver.
99 L_CLK O To panel Clock output to LCD driver.
100 PLL_CLK I/O Tuner Clock input/output with F/E.
MICROCOMPUTER’S TERMINAL DESCRIPTION
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