Sony hcd grx 90 av service manual

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Ð 3 Ð NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, ob- serve from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the ÒS curve checkÓ in ÒCD section adjustmentÓ and check that the S curve waveform is output four times. 4-214-455-0¹GRX90AV: E2, AR INDONESIA 4-214-455-1¹GRX90AV: EA INDONESIA 4-214-455-2¹GRX90AV: SP INDONESIA 4-214-455-5¹GRX90AV: MX INDONESIA 4-214-455-6¹GRX90AV: AUS INDONESIA 4-214-455-7¹RXD10AV: AEP, G, UK, CIS INDONESIA 4-214-455-9¹RXD10AV: US INDONESIA 4-215-171-0¹RXD10AV: CND INDONESIA 4-215-171-1¹GRX90AV: E3 INDONESIA 4-215-171-2¹GRX90AV: TH THAI 4-215-171-3¹RXD10AV: AEP THAI MODEL IDENTIFICATION Ñ BACK PANEL Ñ ¥ Abbreviation CND : Canadian model G : German model EA : Saudi Arabia model MX : Mexican model E2 : Without SW tuner E model E3 : With SW tuner E model SP : Singapore model AUS : Australian model AR : Argentine model TH : Thai model Parts No. PARTS No.MODELPRODUCT COUNTRY SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT Ë LA SƒCURITƒ!! LES COMPOSANTS IDENTIFIƒS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHƒMATIQUES ET LA LISTE DES PIéCES SONT CRITIQUES POUR LA SƒCURITƒ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIéCES SONY DONT LES NUMƒROS SONT DONNƒS DANS CE MANUEL OU DANS LES SUPPLƒMENTS PUBLIƒS PAR SONY.