YAMAHA DRX-2 维修电路原理图.pdf

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1、DRX-2 DRX-2 1 SERVICE MANUAL DVD RECORDER DRX-2 100878 I CONTENTS TO SERVICE PERSONNEL . 24 PREVENTION OF ELECTRO STATIC DISCHARGE . 4 LOCALE MANAGEMENT INFORMATION . 4 FRONT PANELS. 5 REMOTE CONTROL PANEL . 5 REAR PANELS . 6 SPECIFICATIONS. 68 DISASSEMBLY PROCEDURES . 911 DIAGNOSTIC SOFTWARE . 1294

2、 ALIGNMENTS . 9597 CIRCUIT DESCRIPTIONS . 98114 ABBREVIATION LIST . 115118 IC DATA . 119126 BLOCK DIAGRAM. 127 WIRING DIAGRAM . 128 WAVEFORMS . 129130 PRINTED CIRCUIT BOARD . 131149 SCHEMATIC DIAGRAM . 150177 PARTS LIST. 178189 IMPORTANT NOTICE This manual has been provided for the use of authorized

3、 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 saf

4、ety 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

5、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 be

6、lieved 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

7、 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

8、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. P.O.Box 1, Hamamatsu, Japan DRX-2 DRX-2 2 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT

9、 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

10、 birth defects or other reproductive 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 expose eyes to solder/flux vapor! If

11、 you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked s and must be replaced with parts having specifications eq

12、ual 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 ohm shunted by 0.15F. C

13、AUTION 1001 (ANALOG P.C.B.): FOR CONTINUED PROTECTION AGAINST 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 F

14、IRE, REPLACE ONLY WITH SAME TYPE 1.0A, 250V FUSE. 1304 (ANALOG 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.):

15、 FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY 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

16、TYPE 800mA, 250V FUSE. 1505 (DIGITAL P.C.B.): FOR CONTINUED PROTECTION 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

17、 AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.0A, 125V FUSE. CAUTION 1001 (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 SA

18、ME TYPE 4.0A, 250V FUSE. 1306 (ANALOG P.C.B.): REPLACE WITH SAME TYPE 125mA, 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.): R

19、EPLACE WITH SAME TYPE 1.0A, 125V FUSE. 1506 (DIGITAL P.C.B.): REPLACE WITH SAME TYPE 1.0A, 125V FUSE. 1507 (DIGITAL P.C.B.): REPLACE WITH SAME TYPE 1.0A, 125V FUSE. ATTENTION 1001 (ANALOG P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 125mA, 250V. 1300 (ANALOG P.C.B.): UTILISER UN FUSIBLE

20、DE RECHANGE DE MEME TYPE DE 2.5A, 250V. 1303 (ANALOG P.C.B.): UTILISER UN FUSIBLE 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

21、P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.0A, 250V. 1308 (ANALOG P.C.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 TY

22、PE DE 1.0A, 125V. 1506 (DIGITAL P.C.B.): UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 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 RE

23、CORDER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PERSONNEL. DRX-2 DRX-2 3 CAUTION: Visible and invisible laserradiation when open. Avoid exposure to beam. CLASS 1 LASER PRODUCT CAUTION: Visible and invisible laser radiation when open. Avoid exposure to beam. Lase

24、r Diode Properties Type:InGaAIP Semiconductor laser (DVD) AlGaAs Semiconductor laser (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

25、 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

26、possible with a disc loaded inside the player. WARNING LOCATION: Top of the DVDR Mechanism 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 radiati

27、on, 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

28、, 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. Laser Emitting conditions: 1) When the Top Cover is removed and the ST

29、ANDBY/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,

30、 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 c

31、ontrol unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device. DRX-2 DRX-2 4 1 2 4 2 5 5 4 2 6 3 5 I LOCALE MANAGEMENT INFORMATION Locale Management Information : This DVD recorder is designed and manufactured to resp

32、ond to the Locale Management Information that is recorded on the DVDR disc. If the Locale number described on the DVDR disc does not correspond to the Locale number of this DVD recorder, this DVD recorder cannot play this disc. This product incorporates copyright protection technology that is protec

33、ted 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

34、 otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited. I PREVENTION OF ELECTRO STATIC DISCHARGE The laser diode in the DVDR mechanism may be damaged due to static electricity from clothes or the human body. Use caution to prevent electrostatic damage when

35、 servicing or handling the DVDR mechanism. 1. Grounding for electrostatic damage prevention Some devices, such as the DVD recorder, use an optical pickup (laser diode) that will be damaged by static electricity in the working environment. Only attempt service after ensuring that all grounding proced

36、ures have been completed. 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. 1M Conductive material (sheet) or iron

37、sheet Anti-static wrist strap 2. Handling Precautions for DVDR mechanism 1. Handle the DVDR mechanism 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 f

38、or laser power adjustment should not be adjusted. Do not turn the resistor. 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

39、 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 . The primary side of the power supply has been indicated with a lightening stroke and a stripe-marked print on the printed wiring boa

40、rd Note: 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 mechanism is very sensitive for dropping or giving shocks. DRX-2 DRX-2 5 I FRONT PANELS I REMOTE CONTROL PANEL A model G model NATUR

41、AL SOUND DVD RECORDER DRX-2 U model S VIDEOVIDEO CAM 1CAM 2 L AUDIO RDV IN DRX-2 DRX-2 6 I REAR PANELS U model A model I SPECIFICATIONS DISC FORMATS SUPPORTED Disc typePlaybackRecording DVD+RW DVD+R DVD-RW (Video mode) DVD-R DVD-Video SVCD Video CD Audio CD CD-R CD-RW RECORDABLE DISC FORMATS MediumD

42、VD+RW: Phase-Change ReWritable DVD+R: dye-based Diameter12 cm Capacity (single side)4.7 Gbyte Recording timeM1609.72 Mbit/s M21205.07 Mbit/s M2x1504.06 Mbit/s M31803.38 Mbit/s M42402.54 Mbit/s M63601.69 Mbit/s Apparatus Claims of U.S. Patent Nos. 4.631.603, 4.577.216, 4.819.098, 4.907.093 6.466.734,

43、 6.430.359, 6.091.882, 6.049.652, 5.335.079, 5.307.173 licensed for limited viewing uses only. G model DRX-2 DRX-2 7 TV StandardPALNTSC Scan Frequency50Hz60Hz Number of Lines625525 Playback Recording Internal Tuner VIDEO RESOLUTION 50Hz60Hz DVD-Video/DVD+RW/DVD+R(M1/M2/M2x) Horiz. Resolution720 pixe

44、ls1720 pixels1 Vertical Resolution576 lines480 lines DVD+RW_DVD+R(M3/M4/M6) Horiz. Resolution360 pixels2360 pixels2 Vertical Resolution576 lines480 lines VCD Horiz. Resolution352 pixels352 pixels Vertical Resolution288 lines288 lines 1 equivalent to 500 lines on your TV 2 equivalent to 250 lines on

45、your TV VIDEO PERFORMANCE DA Converter10-bit AD Converter9-bit Signal HandlingComponents Video Output1 Vpp into 75 ohms S-video OutputY: 1 Vpp into 75 ohms C: 0.286 Vpp into 75 ohms (U, A models) C: 0.300 Vpp into 75 ohms (G model) Component OutputY: 1Vpp into 75 ohms (U, A models) Pb: 0.7 Vpp into

46、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 FORMAT Compressed DigitalPlaybackRecording Dolby DigitalMulti-channel2-channel (AC-3)16 bit, fs 48 kHz DTSMulti-channel MPEG12-channel SPdif PCM2-channel2-channel 16, 20, 24 bit16 bit, fs 48 k

47、Hz fs 48 kHz AUDIO PERFORMANCE DA Converter24-bit AD Converter16-bit DVDfs 96 kHz4 Hz - 44 kHz fs 48 kHz4 Hz - 22 kHz Video CDfs 44.1 kHz4 Hz - 20 kHz Audio CDfs 44.1 kHz4 Hz - 20 kHz FRONT CONNECTIONS i.LINK DVIEEE 1394 4-pin S-video InputHosiden 4-pin Video InputCinch (yellow) Audio Left/Right InputCinch (white/red) REAR CONNECTIONS Component Video InputCinch (green/blue/red) Compone