Yamaha-DRX2-dvd-sm 维修电路原理图.pdf

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1、DRX-2DRX-21SERVICE MANUALDVD RECORDERDRX-2100878I CONTENTSTO SERVICE PERSONNEL . 24PREVENTION OF ELECTRO STATIC DISCHARGE . 4LOCALE MANAGEMENT INFORMATION . 4FRONT PANELS. 5REMOTE CONTROL PANEL . 5REAR PANELS . 6SPECIFICATIONS. 68DISASSEMBLY PROCEDURES . 911DIAGNOSTIC SOFTWARE . 1294ALIGNMENTS . 959

2、7CIRCUIT DESCRIPTIONS . 98114ABBREVIATION LIST . 115118IC DATA . 119126BLOCK DIAGRAM. 127WIRING DIAGRAM . 128WAVEFORMS . 129130PRINTED CIRCUIT BOARD . 131149SCHEMATIC DIAGRAM . 150177PARTS LIST. 178189IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their

3、service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are alreadyknown and understood by the users, and have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing t

4、his product may result in personalinjury, 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 authorizedYAMAHA Retailer or the appointed service representati

5、ve.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.The data provided is believed to be accurate and applicable

6、to the unit(s) indicated on the cover. The research, engineering, andservice departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitableand specifications are subject to change without notice or obligation to retrofit. Should any discrepancy ap

7、pear to exist, pleasecontact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn

8、 the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.P.O.Box 1, Hamamatsu, JapanRadioFans.CN 收音机爱 好者资料库DRX-2DRX-22WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWARNING: CHEMICAL CONTENT NOTICE!The solder used in the pro

9、duction 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

10、harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or compon

11、ents located inside the enclosure of this product, wash your hands beforehandling food.I TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked sand must be replaced with parts having specifications equalto those originally installed.2. Leakage Cur

12、rent Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohm shuntedby 0.15F.CAUTION1001 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AG

13、AINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 125mA, 250V FUSE.1300 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2.5A, 250V FUSE.1303 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.0A, 250V FUSE.1304 (ANA

14、LOG P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4.0A, 250V FUSE.1306 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 125mA, 250V FUSE.1307 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY

15、WITH SAME TYPE 1.0A, 250V FUSE.1308 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 500mA, 250V FUSE.1309 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 800mA, 250V FUSE.1505 (DIGITAL P.C.B.): FOR CONTINUED PROT

16、ECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.0A, 125V FUSE.1506 (DIGITAL P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.0A, 125V FUSE.1507 (DIGITAL P.C.B.): FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.0A, 125V FUSE

17、.CAUTION1001 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 125mA, 250V FUSE.1300 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 2.5A, 250V FUSE.1303 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 1.0A, 250V FUSE.1304 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 4.0A, 250V FUSE.1306 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 12

18、5mA, 250V FUSE.1307 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 1.0A, 250V FUSE.1308 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 500mA, 250V FUSE.1309 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 800mA, 250V FUSE.1505 (DIGITAL P.C.B.): REPLACE WITH SAME TYPE 1.0A, 125V FUSE.1506 (DIGITAL P.C.B.): REPLACE WITH SA

19、ME TYPE 1.0A, 125V FUSE.1507 (DIGITAL P.C.B.): REPLACE WITH SAME TYPE 1.0A, 125V FUSE.ATTENTION1001 (ANALOG P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 125mA, 250V.1300 (ANALOG P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 2.5A, 250V.1303 (ANALOG P.C.B.): UTILISER UN FUSIBLE

20、DE RECHANGE DE MEME TYPE DE 1.0A, 250V.1304 (ANALOG P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 4.0A, 250V.1306 (ANALOG P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 125mA, 250V.1307 (ANALOG P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.0A, 250V.1308 (ANALOG P.C.

21、B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 500mA, 250V.1309 (ANALOG P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 800mA, 250V.1505 (DIGITAL P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.0A, 125V.1506 (DIGITAL P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE

22、1.0A, 125V.1507 (DIGITAL P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.0A, 125V.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.THE DVD RECORDER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIEDSERVICE PERSONNE

23、L.RadioFans.CN 收音机爱 好者资料库DRX-2DRX-23CAUTION: Visible and invisible laserradiationwhen open. Avoid exposure to beam. CLASS 1LASER PRODUCTCAUTION: Visible and invisible laser radiationwhen open. Avoid exposure to beam. Laser Diode PropertiesType:InGaAIP Semiconductor laser (DVD)AlGaAs Semiconductor la

24、ser (CD)Wave length:660 nm (DVD)780 nm (CD)Output Power:20 mW (DVD writing)(out of objective)0.8 mW (DVD reading)0.3mW (CD reading)Beam divergence:82 degrees (DVD)54 degrees (CD)VARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NkymTTMLLE LASER-STEILYLLE. L KATSO STEESEEN.VARNING!: OSYNLI

25、G LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD.BETRAKTA EJ STRLEN.WARNINGThe use of optical instruments with this product willincrease eye hazard.Repair handling should take place as much as possiblewith a disc loaded inside the player.WARNING LOCATION: Top of the DVDR MechanismWARNING:

26、 Laser SafetyThis product contains a laser beam component. This component may emit invisible, as well as visible radiation, which maycause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used duringservicing of the unit.1) When testing and/or repairi

27、ng any component within the product, keep your eyes and skin more than 30 cm away fromthe 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 contr

28、ols, adjustments or performance of procedures other than those specified herein may result inhazardous radiation exposure.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 emita beam for several seconds to detect i

29、f a disc is present. During this time (5 - 10 sec.) the laser may radiate through thelens 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 laseremissions.2)

30、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 toshipping 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 em

31、ission level from the device.DRX-2DRX-2412425542635I LOCALE MANAGEMENT INFORMATIONLocale Management Information : This DVD recorder is designed and manufactured to respond to the Locale ManagementInformation that is recorded on the DVDR disc. If the Locale number described on the DVDR disc does not

32、correspond to theLocale number of this DVD recorder, this DVD recorder cannot play this disc.This product incorporates copyright protectiontechnology that is protected by method claims ofcertain U.S. patents and other intellectualproperty rights owned by MacrovisionCorporation and other rights owner

33、s. Use of thiscopyright protection technology must beauthorized by Macrovision Corporation, and isintended for home and other limited viewing usesonly unless otherwise authorized by MacrovisionCorporation. Reverse engineering ordisassembly is prohibited.I PREVENTION OF ELECTRO STATIC DISCHARGEThe la

34、ser diode in the DVDR mechanism may be damaged due to static electricity from clothes or the human body. Usecaution to prevent electrostatic damage when servicing or handling the DVDR mechanism.1. Grounding for electrostatic damage preventionSome devices, such as the DVD recorder, use an optical pic

35、kup (laser diode) that will be damaged by static electricity in theworking environment. Only attempt service after ensuring that all grounding procedures have been completed.1. Worktable groundingPut a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.

36、2. Human body groundingUse an anti-static wrist strap to discharge the static electricity from your body.1MConductive material(sheet) or iron sheetAnti-static wrist strap2. Handling Precautions for DVDR mechanism1. Handle the DVDR mechanism gently, as it is an extremely high-precision assembly.2. Th

37、e 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.Warning for power supplyThe primary side of the power supply carries live mains voltage

38、when the player is connected to the mains evenwhen 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 .T

39、he primary side of the power supply has been indicated with a lightening stroke and a stripe-marked print on the printedwiring boardNote:The screws on the DVDR mechanism may never be touched, removed or re-adjusted.Handle the DVDR mechanism with care when the unit has to be exchanged!The DVDR mechan

40、ism is very sensitive for dropping or giving shocks.DRX-2DRX-25I FRONT PANELSI REMOTE CONTROL PANELA modelG modelNATURAL SOUND DVD RECORDER DRX-2U modelS VIDEOVIDEOCAM 1CAM 2L AUDIO RDV INDRX-2DRX-26I REAR PANELSU modelA modelI SPECIFICATIONSDISC FORMATS SUPPORTEDDisc typePlaybackRecordingDVD+RWDVD+

41、RDVD-RW (Video mode)DVD-RDVD-VideoSVCDVideo CDAudio CDCD-RCD-RWRECORDABLE DISC FORMATSMediumDVD+RW: Phase-Change ReWritableDVD+R: dye-basedDiameter12 cmCapacity (single side)4.7 GbyteRecording timeM1609.72 Mbit/sM21205.07 Mbit/sM2x1504.06 Mbit/sM31803.38 Mbit/sM42402.54 Mbit/sM63601.69 Mbit/sApparat

42、us Claims of U.S. Patent Nos.4.631.603, 4.577.216, 4.819.098, 4.907.0936.466.734, 6.430.359, 6.091.882,6.049.652, 5.335.079, 5.307.173licensed for limited viewing uses only.G modelDRX-2DRX-27TV StandardPALNTSCScan Frequency50Hz60HzNumber of Lines625525PlaybackRecordingInternal TunerVIDEO RESOLUTION

43、50Hz60HzDVD-Video/DVD+RW/DVD+R(M1/M2/M2x) Horiz. Resolution720 pixels1720 pixels1 Vertical Resolution576 lines480 linesDVD+RW_DVD+R(M3/M4/M6) Horiz. Resolution360 pixels2360 pixels2 Vertical Resolution576 lines480 linesVCD Horiz. Resolution352 pixels352 pixels Vertical Resolution288 lines288 lines 1

44、 equivalent to 500 lines on your TV 2 equivalent to 250 lines on your TVVIDEO PERFORMANCEDA Converter10-bitAD Converter9-bitSignal HandlingComponentsVideo Output1 Vpp into 75 ohmsS-video OutputY: 1 Vpp into 75 ohmsC: 0.286 Vpp into 75 ohms (U, A models)C: 0.300 Vpp into 75 ohms (G model)Component Ou

45、tputY: 1Vpp into 75 ohms (U, A models)Pb: 0.7 Vpp into 75 ohms (U, A models)Pr: 0.7 Vpp into 75 ohms (U, A models)RGB Output0.7 Vpp into 75 ohms (G model)AUDIO FORMATCompressed DigitalPlaybackRecording Dolby DigitalMulti-channel2-channel(AC-3)16 bit, fs 48 kHz DTSMulti-channel MPEG12-channelSPdif PC

46、M2-channel2-channel16, 20, 24 bit16 bit, fs 48 kHzfs 48 kHzAUDIO PERFORMANCEDA Converter24-bitAD Converter16-bitDVDfs 96 kHz4 Hz - 44 kHzfs 48 kHz4 Hz - 22 kHzVideo CDfs 44.1 kHz4 Hz - 20 kHzAudio CDfs 44.1 kHz4 Hz - 20 kHzFRONT CONNECTIONSi.LINK DVIEEE 1394 4-pinS-video InputHosiden 4-pinVideo Inpu

47、tCinch (yellow)Audio Left/Right InputCinch (white/red)REAR CONNECTIONSComponent Video InputCinch (green/blue/red)Component Video OutputCinch (green/blue/red)S-video InputHosiden 4-pin (U, A models)S-video OutputHosiden 4-pinVideo InputCinch (yellow) (U, A model)Video OutputCinch (yellow)scart 1CVBS,

48、 S-video/RGB-out, Decoder (G model)scart 2CVBS, S-video/RGB-in, Decoder (G model)Audio L/R InputCinch (white/red) (U, A models)Audio L/R OutputCinch (white/red)Digital Audio Output1 coaxial, 1 opticalIEC958 for CDDA / LPCMIEC1937 for MPEG2, Dolby Digital (U, A models)IEC1937, Dolby Digital, DTS (G m

49、odel)RF Antenna InputCoaxial 75 ohmsRF TV OutputCoaxial 75 ohmsPowerStandard (IEC type)POWER SUPPLYPower Supply U model120V, 60Hz A, G models220 - 240V, 50 HzPower ConsumptionOperation27 WLow-power standby3 WCABINETDimensions (WxHxD)435 x 82 x 347 mm (17-1/8 x 3-1/4 x 13-11/16)Net Weight4.0 kg (8 lb

50、s. 13 oz.)OPERATING ENVIRONMENTOperating Positionmaximum 10 degree inclination in all directionsAmbient Temperature 15 35 C (59 95 F)Humidity25 75 %ACCESSORIES- Remote Control x 1- Battery x 2- Power Cable x 1- SCART Cable x 1 (G model)- Audio Pin Cable (2P) x 1 (U, A models)- Video Cable (1P) x 1 (