Aiwa CSD TD52 Service Manual

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Aiwa CSD TD52 Service Manual

Extracted text from Aiwa CSD TD52 Service Manual (Ocr-read)


Page 21

32 Pin No. Pin Name I/O Description 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 XVDD XOUT XIN XVSS SBSY EFLG PW SFSY SBCK FSX WRQ RWC SQOUT COIN___________CQCK RES T11 16M 4.2M T5 ______CS T1 Ñ O I Ñ O O O O I O O I O I I I O O O I I I Crystal oscillator power supply pin. Pin to which external 16.9344 MHz crystal oscillator is connected. Crystal oscillator GND pin. Be sure to connect to 0V. Subcode block sync signal output pin. C1, C2, single and dual correction monitoring pin. Subcode P, Q, R, S, T, U and W output pin. Subcode frame sync signal output pin. Falls down when subcode enters standby. Subcode read clock input pin. Schmidt input. (Be sure to connected to 0V when not in use.) Pin outputting the 7.35 kHz sync signal which is generated by dividing frequency of crystal oscillator. Subcode Q output standby output pin. Read/write control input pin. Schmidt input. Subcode Q output pin. Command input pin from microprocessor. Command input read clock or subcode read input clock from SQOUT pin LC78622 reset input pin. Set this pin to L once when the main power is turned on. Test signal output pin. Use this pin as open (normally L output). 16.9344 MHz output pin. 4.2336 MHz output pin. Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Chip select signal input pin with built-in pull-down resistor. Be sure to connect to 0V while it is not controlling. Test signal input pin without built-in pull-down resistor. Be sure to connect to 0V.