Sony cdx m 9900 service manual

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2 CDX-M9900/M9905X If the optical pick-up block is defective, please replace the whole optical pick-up block. Never turn the semi-fixed resistor located at the side of optical pick-up block. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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 Ã- LA SÉCURITÉ!! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. Tone controls Bass: ±8 dB at 100 Hz Treble: ±8 dB at 10 kHz Loudness +8 dB at 100 Hz +2 dB at 10 kHz Power requirements 12 V DC car battery (negative ground) Dimensions Approx. 178 × 50 × 187 mm (7 1/8 × 2 × 7 3/8 in.) (w/h/d) Mounting dimensions Approx. 182 × 53 × 162 mm (7 1/4 × 2 1/8 × 6 1/2 in.) (w/h/d) Mass Approx. 1.6 kg (3 lb. 8 oz.) Supplied accessories Card remote commander RM-X145A (1) (US, Canadian Model) Card remote commander RM-X144 (1) (AEP, UK, E Model) Parts for installation and connections (1 set) Front panel cover (1) NoteThis unit cannot be connected to a digital preamplifier or an equalizer which is Sony BUS system compatible. Design and specifications are subject to change without notice. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown 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. Notes on Chip Component Replacement -Never reuse a disconnected chip component. -Notice that the minus side of a tantalum capacitor may be dam- aged by heat. TEST DISCS This set can playback CD-R and CD-ROM discs. The following test discs should be used to check the capability: CD-R test disc TCD-R082LMT (Part No. J-2502-063-1) CD-RW test disc TCD-W082L (Part No. J-2502-063-2) SERVICE NOTES -US, Canadian model -AEP, UK, E model This label is located on the bottom of the chassis. optical pick-up semi-fixed resistor

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3 CDX-M9900/M9905X Notes on CD-Rs (recordable CDs)/CD-RWs (rewritable CDs) This unit can play the following discs: Type of discs Label on the disc Audio CD MP3 files -Some CD-Rs/CD-RWs (depending on the equipment used for its recording or the condition of the disc) may not play on this unit. -You cannot play a CD-R/CD-RW that is not finalized-ˆ— . -You can play MP3 files recorded on CD-ROMs, CD-Rs, and CD-RWs. -A CD-R/CD-RW to which a session can be added can be played. -ˆ—A process necessary for a recorded CD-R/CD-RW disc to be played on the audio CD player. EXTENSION CABLE AND SERVICE POSITION When repairing or servicing this set, connect the jig (extension cable) as shown below. -Connect the MAIN board (CN401) and the SERVO board (CN2) with the extension cable (Part No. J-2502-062-1). NOTE FOR THE OPENING OF THE FRONT PANEL In this set, the front panel is lowered to below the bottom face when it is opened. When servicing the set, place it on a stand having a height of about 2 cm. FORCED FRONT PANEL OPEN/CLOSE The front panel is forced to OPEN/CLOSE at the timing that the power (ACC) is turned off. If the Z button for the front panel is not effective, the following method is used: With the front panel open: The front panel is closed when ACC is switched from ON to OFF edge. With the front panel closed: The front panel is opened when ACC is switched from ON to OFF edge. NOTE FOR REPLACEMENT OF THE DIGITAL BOARD When repairing, the complete DIGITAL board should be replaced since any parts in the DIGITAL board cannot be repaired. SERVO BOAR D CN2 MAIN BOARD CN401 J-2502-076-1 stand