Aiwa cdc-x217 Service Manual page 27

Pin No. Pin Name
47 WRQ
48 RWC
49 CD RES
50 SW3
51 SW2
52 SW1
53 R-ENCOD2
54 R-ENCOD1
55 LCD-DI
56 REMOTE IN
57 LED
58 CD DISP SEL
59 CD CLOCK OUT
60 CD DATA OUT
61 CD CONNECT
62 CD INSIDE
63 TEST
64 L IND
65 PH.MUTE
66 RESET
67 ACC IN
68 SNS
69 BATT IN
70 IF (FM / AM)
71 EO3
72 SUB PD
73 VDD
74 AM OSC
75 FM OSC
76 VSS
77 EO2
78 EO1
79 TEST1
80 XOUT
I/O
I Sub-code Q output standby input terminal.
O Read / write control output terminal.
O DSP reset output terminal.
I Disc detection / chuck or release disc detection.
I 12 cm disc detection / 12 cm disc ejection and detection.
I Leading motor start detection.
I Rotary encoder input 2.
I Rotary encoder input 1.
I LCD driver data signal input.
I Remote controller input. Pulled up when not used.
O Security LED flashing output. "H": No light on, "L": Light on.
O Communication timing signal output to CD changer. "H": TX, "L": RX. (Not used.)
O Output synchronous clock signal for sending to CD changer. (Not used.)
O Output data signal for sending to CD changer. (Not used.)
I Connectivity check to CD changer.
I Pick up inner track position detection.
I CD test mode. Pulled down when not used.
I Voltage input for level indicator. Pulled down when not used.
I External mute control. "L"= -20dB mute. Pulled up when not used.
I System reset. "L"= system reset.
I ACC (accessory power) ON/ OFF input. OFF=fault mode.
I Backup detection.
I Input battery ON / OFF.
I IF count signal input (FM / AM).
- Not used.
- Not used.
- Power supply.
I AM channel transmission input.
I FM channel transmission input.
- Connected to GND.
- Not used.
O Error out from charge pump (for FM / AM).
- Not used.
O System clock oscillator output.
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Description