AIWA CDC-X3070
Service Manual

Pin No. 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

Pin Name RVSS RCHO RVDD MUTER/CONT8 XVDD XOUT XIN XVSS SBSY EFLG PW SFSY SBCK FSX WRQ RWC SQOUT COIN CQCK RES TST11 16M 4.2M TEST5 CS TEST1

I/O O O O

Description Right channel ground. (Must be connected to 0V.) Right channel output. Right channe power supply. Right channel mute output./ General purpose input/ output. Crystal oscillator power supply. Connections for a 16.9344 MHz crystal oscillator element.

I O O O O in standby stase. I O O I O I I readout clock input pin. This is Schmitt input. I O O O I I (Must be connected to 0V if not controlled.) I Test input. No pull-down resistor. (Must be connected to 0V.) Reset input. This pin must be set low briefly after power is first applied. Test output. Leave open. (Normally output a low level.) 16.9344 MHz output. 4.2336 MHz output. Test input. A pull-down resistor is built-in. (Must be connected to 0V.) Chip seledt input. A pull-down resistor is built-in. Subcode readout clock input. This is a Schmitt input. Output pin for the 7.35 kHZ synchronization signal divided from the crystal oscillator. Subcode Q output standby output. Read/write control input. This is a Schmitt input. Subcode Q output. Command input pin from control microprocessor. Input for both the command input acquisition clock and the SQOUT pin subcode Crystal oscillator ground. (Must be connected to 0V.) Subcode clock synchronization signal output. C1, C2, sigle an double error correction monitor. Subcode P, Q, R, S, T, U and W output. Subcode frame synchronization signal output. This signal falls when the subcode are

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