Aiwa CSD TD52 Service Manual

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Aiwa CSD TD52 Service Manual

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


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3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING VAROITUS! Laiteen KŠyttŠminen muulla kuin tŠssŠ kŠyttšohjeessa mainit- ulla tavalla saattaa altistaa kŠyt-tŠjŠn turvallisuusluokan 1 ylit- tŠvŠlle nŠkymŠttšmŠlle lasersŠteilylle. VARNING! Om apparaten anvŠnds pŒ annat sŠtt Šn vad som specificeras i denna bruksanvising, kan anvŠndaren utsŠttas fšr osynling laserstrŒlning, som šverskrider grŠnsen fšr laserklass 1.Caution: Invisible laser radiation when open and interlocks defeated avoid expo- sure to beam. Advarsel: Usynling laserstŒling ved Œbning, nŒr sikkerhedsafbrydere er ude af funktion. UndgŒ uds¾ttelse for strŒling. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. ATTENTION L'utilisation de commandes, rŽglages ou procŽdures autres que ceux spŽcifiŽs peut entra-ner une dangereuse exposition aux radiations. ADVARSEL! Usynlig laserstŒling ved Œbning, nŒr sikkerhedsafbrydereer ude af funktion. UndgŒ uds¾ttelse for strŒling. This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior. This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. WARNING! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. CLASS 1 KLASSE 1 LUOKAN 1 KLASS 1LASER PRODUCT LASER PRODUKT LASER LAITE LASER APPARAT Precaution to replace Optical block (SF-P101NR) 1) After the connection, remove solder shown in the right figure. Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode. Solder 1 16 TO/FROM CD C.B PICK UP ASSY SF-P101NR

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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.