Kenwood KDC-7027, Service Manual

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KDC-7027/7027Y
7
Pin No. Pin Name I/O Description / Processing Operation Fig.
75 PAN DET I PANEL, E2PROM detection terminal (With panel : L, Without : H)
76 PHONE I PHONE detection terminal (TEL MUTE : 1V or less, NAVI MUTE : 2.5V or more)
77 FPM SW4 I
FPM mechanism position detect/ CD Mechanism detection terminal
1
(3.75V or more : No mechanism, 1.25V or more : H, Less than 1.25V : L)
78 FPM SW1 I FPM mechanism position detect terminal 1
79 FPM SW2 I FPM mechanism position detect terminal 1
80 FPM SW3 I FPM mechanism position detect terminal 1
81 FPM PHOUT I FPM mechanism position detect terminal (2.2V or more : H) 1
82 S METER I S meter detection terminal
83 NOISE I FM noise detection terminal
84 IFC OUT I Front end IFC OUT input terminal (Receiving station : 2.5V or more)
85 POWER DET I Audio power IC DC offset detection
86 CD SW4 I 8cmDISC detection terminal (8cmDISC : L)
87 R CLK I RDS decoder clock input terminal
88 LX REQ S I Receive request from external slave unit (Request : L)
89 SC REQ I Communication request from panel microprocessor
90 CD SW1 I LOADING SW detection terminal (LOADING start, POWER OFF : L)
91 CD SW2 I 12cmDISC detection terminal (12cmDISC, POWER OFF : L)
92 R QUAL I RDS decoder QUAL input terminal
93 R DATA I RDS decoder DATA input terminal
94 LX DATA S I Data input from external slave unit
95 LX DATA M O Data output to external slave unit
96 LX CLK I/O Clock input/ output with external slave unit
97 L DATAL I Data input from LCD driver
98 L DATAS O Data output to LCD driver
99 L CLK O CLK output to LCD driver
100 PLL CLK I/O Clock input/ output to Tuner front-end
MICROCOMPUTER’S TERMINAL DESCRIPTION
Fig.1 FPM motor control
SLIDE FPM mechanism
FPM MOTOR B FPM MOTOR F operation
L L Standby
H L Backward operation
L H Forward operation
H H Brake
ANGLE FPM mechanism
FPM MOTOR O FPM MOTOR C operation
L L Standby
H L Angle open direction
L H Angle close direction
H H Brake
●
CD SIGNAL PROCESSOR & CD MECHANISM CONTROL : MN662773KH2 (X32-555 : IC2)
Pin No. Pin Name I/O Description / Processing Operation
1 BDO I Dropout signal input (H : Dropout detected)
2 OFT I Off-track signal input (H : Off-track detected)
3 /RFDET I RF detection input (H : RF signal detected)
4 VDET I Vibration detection input (H : Vibration detected)
5 LDON O Laser diode ON signal output (H : Laser diode ON)
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