AIWA CRD800
Service Manual

Pin No. 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

Pin Name COM2 COM3 LCD0 LCD1 LCD2 LCD3 LCD4 LCD5 LCD6 LCD7 LCD8 LCD9 LCD10 LCD11 LCD12 LCD13 LCD14 LCD15 LCD16 BATT SEL TV SEL BASS SEL POC0 MUTE OUT SP CANCEL S-BASS OUT CLOCK/TU Xout Xin DSP TEST BATT IND S-BASS HOLD IF SELECT BATT DSP NSB SIG KEY IN GND VDD2

I/O O O O O O O O O O O O O O O O O O O O I I I O O O O I � I I/O O I I I I I I � � LCD segment output LCD common output

Description

Voltage detection method select pin. "H": Voltage is detected by the input to pin 76. "L": Voltage is detected by the input to pin 64. TV canceling pin. "H": TV not provided, "L": TV provided. S-BASS key select pin. "H": Switched by input to S-BASS port. "L": Switched by A/D key input. Not used Outputs "H" with MUTE. Outputs "H" to cancel speaker output. Outputs "H" with S-BASS ON. Clock/frequency display switching input. "H": Frequency display. For the connection of crystal oscillator For the connection of crystal oscillator All indicators light when "H" is input. BT3 indicator lights when "H" is input. S-BASS ON with "H" input No A/D key input is accepted when "H" is input. IF frequency select pin. "H": 10.7 MHz, "L": 10.5 MHz A/D input for battery remaining lever display A/D input for discriminating NSB signal level. A/D KEY input GND Power supply

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