Yamaha-DVDC-950-Service-Manual电路原理图.pdf

SERVICE MANUAL 100937 SERVICE MANUAL REPAIR NOTES.8 DISASSEMBLY PROCEDURES .910 BLOCK DIAGRAM.11 WIRING DIAGRAM .12 PRINTED CIRCUIT BOARD .1324 SCHEMATIC DIAGRAM.2541 EXPLODED VIEW.42 MECHANICAL PARTS .43 I CONTENTS TO SERVICE PERSONNEL .23 PREVENTION OF ELECTROSTATIC DISCHARGE .4 LOCALE MANAGEMENT INFORMATION .4 FRONT PANEL .5 REMOTE CONTROL PANEL.5 REAR PANEL .6 SPECIFICATIONS.67 DIMENSIONS .7 INTERNAL VIEW .8 DVD-AUDIO/VIDEO SA-CD PLAYER DVD-C950 DVD-C950 This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefore not been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit. IMPORTANT NOTICE 05.03 RadioFans.CN 收音机爱 好者资料库 Copyright 2005 YAMAHA CORPORATION This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. DVD-C950 2 DVD-C950 ITO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked Z and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. GMeter impedance should be equivalent to 1500 ohms shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. AC LEAKAGE TESTER OR EQUIVALENT EQUIPMENT UNDER TEST INSULATING TABLE WALL OUTLET WARNING: Laser Safety This product contains a laser beam component. This component may emit invisible, as well as visible radiation, which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used during servicing of the unit. 1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the laser pick-up unit at all times. Do not stare at the laser beam at any time. 2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual. 3) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. Laser Emitting conditions: 1) When the Top Cover is removed, and the STANDBY/ON SW is turned to the ON position, the laser component will emit a beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate through the lens of the laser pick-up unit. Do not attempt any servicing during this period! If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laser emissions. 2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level has been set by the factory prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device. THE DVD AUDIO/VIDEO PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PERSONNEL. RadioFans.CN 收音机爱 好者资料库 DVD-C950 3 DPX-1200DVD-C950 Laser Diode Properties Type:Semiconductor laser GaAlAs Wave length:650 nm (DVD) 780 nm (VCD/CD) Output Power:7 mW (DVD/VCD/CD) Beam divergence:60 degree VARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLE LASER-STEILYLLE. L KATSO STEESEEN. VARNING! : OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN. WARNING The use of optical instruments with this product will increase eye hazard. Repair handling should take place as much as possible with a disc loaded inside the player. CLASS 1 LASER PRODUCT LASER KLASSE 1 PRODUKT LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT PRODUIT LASER DE CLASSE 1 CAUTIONVISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN. AVOID EXPOSURE TO BEAM ADVARSELSYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADVARSELSYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLEN VARNINGSYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLEN VARO !AVATTAESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE, L KATSO STEESEEN VORSICHTSICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSEN DANGERVISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTIONRAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU CLASS 1 LASER PRODUCT LASER KLASSE 1 PRODUKT LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT PRODUIT LASER DE CLASSE 1 Warning for power supply The primary side of the power supply carries live mains voltage when the player is connected to the mains even when the player is switched off ! This primary area is not shielded so it is possible to touch copper tracks and/or components when servicing the player. Service personnel have to take precautions to prevent touching this area or components in this area. Note: The screws on the DVD mechanism may never be touched, removed or re-adjusted. Handle the DVD mechanism with care when the unit has to be exchanged! The DVD mechanism is very sensitive for dropping or giving shocks. DVD-C950 4 DVD-C950 I PREVENTION OF ELECTROSTATIC DISCHARGE I LOCALE MANAGEMENT INFORMATION Locale Management Information : This DVD player is designed and manufactured to respond to the Locale Management Information that is recorded on a DVD disc. If the Locale number described on the DVD disc does not correspond to the Locale number of this DVD player, this DVD player cannot play this disc. This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited. q w r w t t r w y e t The laser diode in the traverse unit (optical pickup) may be damaged due to static electricity from clothes or the human body. Use caution to prevent electrostatic damage when servicing or handling the laser diode. 1. Grounding for electrostatic damage prevention 1. Worktable grounding Put a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed. 2. Human body grounding Use an anti-static wrist strap to discharge the static electricity from your body. 2. Handling of the optical pickup 1. To prevent damage to the optical pickup replacement parts during transportation and before installation, both ends of the laser diode are short-circuited. After installing the new part, remove the short circuit according to the correct procedure in this service manual. 2. Do not use a tester to check the laser diode in the optical pickup. The power supply in the tester will damage the laser diode. 3. Handling Precautions for the Traverse Unit (Optical Pickup) 1. Handle the traverse unit (optical pickup) gently, as it is an extremely high-precision assembly. 2. The flexible cable lines may break if an excessive force is applied to it. Use caution when handling the cable. 3. The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor. 1M Conductive material (sheet) or steel sheet Anti-static wrist strap DVD-C950 5 DPX-1200DVD-C950 I FRONT PANEL M DVD-C950 (U model) G DVD-C950 I REMOTE CONTROL PANEL DVD-C950 6 DVD-C950 PLAYBACK SYSTEM DVD-Video DVD-Audio SA-CD multichannel and SA-CD stereo Video CD and SVCD CD PICTURE CD CD-R, CD-RW DVD+R, DVD+RW DVD-R, DVD-RW VIDEO PERFORMANCE Video (CVBS) Output1 Vpp into 75 ohms S-Video OutputY: 1 Vpp into 75 ohms C: 0.3 Vpp into 75 ohms Component Video OutputY: 1 Vpp into 75 ohms Pb/Cb Pr/Cr: 0.7 Vpp into 75 ohms Black Level ShiftOn/Off TV STANDARD (PAL/50Hz) (NTSC/60Hz) Number of lines625525 PlaybackMultistandard(PAL/NTSC) AUDIO FORMAT Digital Mpeg/Dolby Digital/Compressed Digital DTS PCM16, 20, 24 bits fs, 44.1, 48, 96 kHz MP3 (ISO 9660)24, 32, 56, 64, 96, 128, 256 kbps fs 16, 22.05, 24, 32, 44.1, 48kHz WMA32192 kbps, mono, stereo Full decoding of Dolby Digital and DTS multi-channel sound Analog Sound Stereo Dolby Surround compatible downmix from Dolby Digital multi-channel sound Dolby Pro Logic II 3D sound for virtual 5.1 channel sound on 2 speakers I SPECIFICATIONS I REAR PANEL M DVD-C950 U model AUDIO PERFORMANCE DA Converter24 bits, 192kHz Signal-Noise (1kHz)105 dB Dynamic Range (1kHz)95 dB DVDfs 96 kHz2 Hz - 44 kHz fs 48 kHz2 Hz - 22 kHz SVCDfs 48 kHz2 Hz - 22 kHz fs 44.1 kHz2 Hz - 20 kHz CD/VCDfs 44.1 kHz2 Hz - 20 kHz Distortion and Noise (1kHz)0.0035% CONNECTIONS Y OutputCinch (green) Pb/Cb OutputCinch (blue) Pr/Cr OutputCinch (red) S-Video OutputMini DIN, 4 pins Video OutputCinch Audio Output (L+R)Cinch Digital Output1 coaxial, 1 optical IEC60958 for CDDA / LPCM IEC61937 for MPEG1/2, Dolby Digital and DTS 6 Channel Analog Output Audio Front L/RCinch (white/red) Audio Surround L/RCinch (white/red) Audio CenterCinch (blue) Audio SubwooferCinch (black) HDMI OutputTYPE A x 1 GENERAL Dimensions (w x h x d)435 x 75 x 425 mm (17-1/8 x 3 x 16-3/4) WeightApprox. 5.5 Kg (12 lbs 2 oz) FinishBlack Color POWER SUPPLY Power inletU model120V, 60Hz Power usageApprox. 20W Power usage standby< 1W DVD-C950 7 DPX-1200DVD-C950 ACCESSORIES Remote Control x1 Batteries x2 Audio/Video Cable x1 * Typical playing time for movie with 2 spoken languages and 3 subtitle languages * Specifications subject to change without prior notice. U . USA model Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. “DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc. “DivX”, “DivX Certified”, and associated logos are trademarks of DivXNetworks, Inc and are used under license. “DCDi” is a trademark of Faroudja, a division of Genesis Microchip, Inc. HDMI, the HDMI logo and High Definition Multimedia Interface are trademarks or registered trademark of HDMI Licensing LLC. Unit : mm (inch) 75 (3) 425 (16-3/4) 435 (17-1/8) I DIMENSIONS DVD-C950 8 DVD-C950 I REPAIR NOTES 1. DVD 5-Disc Changer Module The DVD 5-Disc Changer Module consists of the CM Unit and Tray Assy. The DVD 5-Disc Changrer Module is supplied as a whole. Neither the CM Unit nor Tray Assy can be supplied independently. 2. Power Supply Unit The power supply unit has to be replaced in case of failure. 3. PCB Assembly When a failure has occurred in the PCB assembly, re- place each P.C.B. I INTERNAL VIEW q POWER SUPPLY UNIT w RS232C P.C.B. e DVD 5-DISC CHANGER MODULE r AV (2) P.C.B. t PSCAN P.C.B. y AV (1) P.C.B. u MONO P.C.B. i BRACKET FRONT o FRONT (2) STANDBY/ON P.C.B. !0 FRONT (1) DISPLAY P.C.B. !1 FRONT (3) OPEN/CLOSE P.C.B. qewry i t u o!0!1 DVD-C950 9 I DISASSEMBLY PROCEDURES See exploded view for item numbers Mounting Dismounting Front (3) Open/Close Board 1200 Remove cable connections. 1101 Remove 5 screws. 252 Dismount board. Front (2) Standby/ON Board 1200 Remove cable connections. 1100 Remove 3 screws. 252 Release 2 catches. Dismount board. Front Panel 101 Remove 2 cable connections. 11051109 Remove 2 screws. 260 (Bracket Front to bottom frame) Unlock Front panel from frame by releasing successively 4 snaps. (2 on the side and 2 on the bottom) Remove 2 screws. 300 (Fig. 1) Dismount Clamper Assy. (Fig. 1) Solder the lands of the Optical Pick Up. (Fig. 2) Top Cover 240 Remove 7 screws. 260 (4 on side and 3 rear side) Lift top cover from rear side to remove. Mono Board 1300 Open Tray. Remove 8 cable connections. 1101110211041105 1301130313041305 Remove 4 scr