Sony d ne 920 service manual
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2 D-NE9 20/NE920LS CAUTION -INVISIBLE LASER RADIATION WHEN OPEN - DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS - CLASS 1M INVISIBLE LASER RADIATION WHEN OPEN - DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS Flexible Circuit Board Repairing - Keep the temperature of the soldering iron around 270 °C during repairing. - Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). - Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement - Never reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may be damaged by heat. On AC power adaptor -U se only the AC power adaptor supplied. If your CD player is not supplied with the one, use the AC-E30HG AC power adaptor. Do not use any other AC power adaptor. It may cause a malfunction. Polarity of the plug -D o not touch the AC power adaptor with wet hands. - Connect the AC power adaptor to an easily accessible AC outlet. Should you notice an abnormality in the AC power adaptor, disconnect it from the AC outlet immediately. 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 PA RT NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. - Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. Terminals -To clean the terminals If the terminals on the charging stand become dirty, the battery may not be charged properly. Clean the terminals with a cotton swab or a dry cloth periodically as illustrated below. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. A TTENTION AU COMPOSANT AYANT RAPPORT À 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 COM- POSANTS Q UE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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3 D-NE9 20/NE920LS TABLE OF CONTENTS 1. SERVICING NOTES ................................................ 4 2. GENERAL ................................................................... 5 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 7 3-2. Upper Lid Sub Assy ........................................................ 8 3-3. SWITCH Board ............................................................... 9 3-4. Cabi Mid Sub Assy .......................................................... 10 3-5. EGH Board, CD Mechanism Deck (CDM-3325ERV2) .......................................................... 11 3-6. JACK Board, JACK SUB Board ..................................... 12 3-7. Turn Table Motor Assy (M901), Sled Motor Assy (M902), Optical Pick-up (DAX-25EV) ......................................... 12 4. ELECTRICAL CHECKING .................................... 13 5. DIAGRAMS 5-1. Block Diagram ................................................................ 15 5-2. Printed Wiring Board – EGH Board (Side A) – ............. 16 5-3. Printed Wiring Board – EGH Board (Side B) – ............. 17 5-4. Schematic Diagram – EGH Board (1/3) – ...................... 18 5-5. Schematic Diagram – EGH Board (2/3) – ...................... 19 5-6. Schematic Diagram – EGH Board (3/3) – ...................... 20 5-7. Printed Wiring Board – JACK Board (Side A), JACK SUB Board – ................ 21 5-8. Printed Wiring Board – JACK Board (Side B) – ............ 22 5-9. Schematic Diagram – JACK Board, JACK SUB Board – ............................... 23 5-10. Printed Wiring Board – SWITCH Board – .................... 24 5-11. Schematic Diagram – SWITCH Board – ....................... 25 6. EXPLODED VIEWS 6-1. Overall Assy .................................................................... 31 6-2. Cabinet (Lower) Section .................................................. 32 6-3. CD Mechanism Section (CDM-3325ERV2) ................... 33 7. ELECTRICAL PARTS LIST .................................. 34 Y ou can play discs on this CD player. Audio CDs: CD-DA format CDs CD-DA (Compact Disc Digital Audio) is a recording standard used for Au\ dio CDs. ATRAC CDs: CD-R/CD-RW on which audio data compressed in the ATRAC3plus format has been recorded by using SonicStage* ATRAC3plus (Adaptive Transform Acoustic Coding3plus) is audio compress\ ion technology that satisfies the demand for high sound quality and high com\ pression rates. ATRAC3plus can compress audio files to about 1/20 of their origin\ al size at 64 kbps. Bit rates and sampling frequencies this CD player can play are: Up to 62 characters can be displayed on this CD player. MP3 CDs: CD-R/CD-RW on which audio data compressed in the MP3 format has been recorded by using a software other than SonicStage* Bit rates and sampling frequencies this CD player can play are shown bel\ ow. Variable Bit Rate (VBR) files can also be played. This CD player conforms to Version 1.0/1.1/2.2/2.3/2.4 of the ID3 tag fo\ rmat. ID3 tag is a format for adding certain information (track name, album name, art\ ist name, etc.) to MP3 files. Up to 64 characters of ID3 tag information can be displaye\ d on this CD player. CD-Extra and Mix-Mode CDs: CD-R/CD-RW on which CD-DA format data and CD-ROM format data are recorded together.* If you cannot play your CD, change the "CD-EXTRA" setting in the OPTION \ menu. Then you may play your CD. An ATRAC CD on which audio data compressed in the MP3 format has been re\ corded using software other than SonicStage can also be played. With SonicStage, you cannot create a CD on which mixed format audio data\ is recorded. * Only ISO 9660 Level 1/2 and Joliet extension format discs can be playe\ d. Music discs encoded with copyright protection technologies This product is designed to play back discs that conform to the Compact \ Disc (CD) standard. Recently, various music discs encoded with copyright protectio\ ntechnologies are marketed by some record companies. Please be aware that among those \ discs, there are some that do not conform to the CD standard and may not be pla\ yable by this product. Bit rates Sampling frequencies ATRAC3plus 48/64/256 kbps 44.1 kHz ATRAC3 66/105/132 kbps 44.1 kHz Bit rates Sampling frequencies MPEG-2 Layer3 8 - 160 kbps 16/22.05/23 kHz MPEG-2.5 Layer3 8 - 160 kbps 8/11.025/12 kHz MPEG-1 Layer3 32 - 320 kbps 32/44.1/48 kHz