Yamaha-DVDS-520-Service-Manual电路原理图.pdf

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1、DVD-S520/DV-S5450 DVD-S520/DV-S5450 SERVICE MANUAL DVD PLAYER DVD-S520/DV-S5450 100795 I CONTENTS TO SERVICE PERSONNEL . 1 WARNINGS . 12 PREVENTION OF ELECTRO STATIC DISCHARGE.3 LOCALE MANAGEMENT INFORMATION . 3 FRONT PANELS. 4 REMOTE CONTROL TRANSMITTER . 4 REAR PANELS . 56 SPECIFICATIONS. 67 DISAS

2、SEMBLY PROCEDURES . 8 SERVICE POSITION. 9 SERVICE HINTS . 9 DIAGNOSTIC SOFTWARE: SCRIPT INTERFACES. 1011 INTERACTIVE TESTS . 1218 TEST INSTRUCTIONS . 1821 TROUBLESHOOTING . 2228 TECHNICAL SPECIFICATIONS DVD MODULE. 2930 LIST OF ABBREVIATIONS . 31 IC DESCRIPTIONS . 3241 WIRING DIAGRAM . 42 BLOCK DIAG

3、RAM. 4344 PRINTED CIRCUIT BOARD . 4565 SCHEMATIC DIAGRAM . 6577 PARTS LIST. 7887 REMOTE CONTROL TRANSMITTER . 88 IMPORTANT NOTICE 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 in

4、dustry, 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

5、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 d

6、oes 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

7、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:Sta

8、tic 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

9、before you apply power to the unit. P.O.Box 1, Hamamatsu, Japan RadioFans.CN 收音机爱 好者资料库 DVD-S520/DV-S5450 DVD-S520/DV-S5450 1 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE I WARNINGS WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this produ

10、ct 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

11、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 you come in contact with solder or components located i

12、nside the enclosure of this product, wash your hands before handling food. 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 followin

13、g 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

14、 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 POWER SW is turned

15、 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

16、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 instruc

17、tion is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device. I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked s and must be replaced with parts having specifications equal to

18、 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. GLeakag

19、e current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. THE DVD PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PER- SONNEL. RadioFans.CN 收音机爱 好者资料库 DVD-S520/DV-S5450 DVD-S520/DV-S5450 U, C modelsB, G modelsR, A, T, P m

20、odels CAUTION - Visible and invisible laser radiation when open. Avoid exposure to beam. DANGER - Visible and invisible laser radiation when open. Avoid direct exposure to beam. CAUTION - Visible and invisible laser radiation when open. Avoid exposure to beam. 2 Laser Diode Properties Type:Semicondu

21、ctor laser GaAlAs Wave length:650 nm (DVD) 780 nm (VCD/CD) Output Power:7 mW (DVD) 10 mW (VCD/CD) Beam divergence:60 degree Output value is determined by CFR CHAPTER1, SUBCHAPTER J VARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NkymTTMLLE LASER- STEILYLLE. L KATSO STEESEEN. VARNING!: O

22、SYNLIG 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 WARNING LOCATION: REAR PANEL CAUTION VIS

23、IBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN. AVOID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADVARSEL SYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLEN VARNING SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA

24、 EJ STRLEN VARO! AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYO

25、NNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU Warning for power supply The primary side of the power supply including the heatsink carries live mains voltage when the player is connected to the mains even when the player is switched off ! This primary area is

26、 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 . The primary side of the power supply has been indicated with a lightening stroke and a stripe-mark

27、ed print on the printed wiring board Note: The screws on the DVD mechanism (position 18-1 in on the exploded view drawing) 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 sh

28、ocks. DVD-S520/DV-S5450 DVD-S520/DV-S5450 3 1 2 4 2 5 5 4 2 6 3 5 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 the DVD disc. If the Locale number described on the DVD d

29、isc 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 oth

30、er 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. I PREVENTION OF ELECTRO

31、STATIC DISCHARGE 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 Some devices, such

32、as the DVD player, 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 procedures have been completed. 1. Worktable grounding Put a grounded conductive material (sheet) or iron sheet on the

33、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 steel sheet Anti-static wrist strip 2. Handling of the optical pickup 1. To prevent damage to the optical pickup repla

34、cement 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

35、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. When replacing the optical pickup, install the flexible cable and cut its shor

36、t land with wire cutters. See the optical pickup replacement procedure in this service manual. Before replacing the traverse unit, remove the shorting pin for preventing static electricity damage and install the new unit. Reconnect the connector as quickly as possible. 3. The flexible cable lines ma

37、y break if an excessive force is applied to it. Use caution when handling the cable. 4. The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor. DVD-S520/DV-S5450 DVD-S520/DV-S5450 4 I FRONT PANELS DVD-S520 DV-S5450 I REMOTE CONTROL TRANSMITTER DVD-S520/DV

38、-S5450 DVD-S520/DV-S5450 5 I REAR PANELS DVD-S520 B, G models DVD-S520 U, C models DVD-S520 A model DVD-S520 R model DVD-S520 T model DVD-S520 P model DVD-S520/DV-S5450 DVD-S520/DV-S5450 6 I SPECIFICATIONS PLAYBACK SYSTEM DVD Video Video CD no other equipment is needed to perform a number of hardwar

39、e tests to check if the DVD player is faulty. The diagnosis is simply a error or pass message; no indication is given of faulty hardware modules. Only tests within the scope of the diagnostic software will be executed hence only faults within this scope can be detected. I DIAGNOSTIC SOFTWARE : SCRIP

40、T INTERFACES 1.2 Contents of Dealer Script The dealer script executes all diagnostic nuclei that do not need any user interaction and are meaningful on a standalone DVD player. The nuclei called in the dealer script are the following (the number after each nucleus name corresponds with the number be

41、ing on the local display when the nucleus is executed during the dealer script): NucleusDescription VideoColSetupComm9Checks the I2C interface with the RGB video processor on the Audio/Video board (only for DVD players with RGB video processor). VideoScartSwComm8Checks the I2C interface with the sca

42、rt switch on the Audio/Video board PapChksFl7Calculate and verify checksum of FLASH memory. PapDramWrR6Pattern test of all locations in the DRAM(s). PapI2cDisp5Checks the I2C interface with the slave processor on the display PCB. PapS2bEcho4Checks the I2C interface to the basic engine. PapI2cNvram3C

43、hecks the I2C interface with the NVRAM. PapNvramWrR2Pattern test of all locations in the NVRAM CompSdramWrR1Pattern test of all locations in the SDRAM(s). 10 DVD-S520/DV-S5450 DVD-S520/DV-S5450 11 SLEDGE TEST BeSledgeOut/In(41ab) FOCUS TEST BeFocusOn(38a) DISC MOTOR TEST BeDiscMotorOn(39a) RADIAL TE

44、ST BeRadialOn(40a) JUMP TEST BeGroovesIn/Mid/Out(42abc) Press 2 keys simultaneously + Connect to mains To exit player test, disconnect from mains INTERACTIVE TESTS DISPLAY TEST DispDisplay(30) LED TEST DispLed(29) KEYBOARD TEST DispKeyb(27) SCART LOOP TEST AudioPinkNoiseOn(20a) VideoScartSwDvd(54a)

45、VideoColDencOn(23a) PICTURE TEST DISPLAY PCB MONO PCB(SERVO) in the next paragraph this interaction is described. The player test is done in two phases: 1. Interactive tests: this part of the player test depends strongly on user interaction and input to determine nucleus results and to progress thro

46、ugh the full test. Reading the error log and error bits information can be useful to determine any errors that occurred recently during normal operation of the DVD player. 2. The loop test will loop through the list of nuclei indefinitely, till the NEXT key is pressed. The list of nuclei is as follows: VideoColSetupComm VideoScartSwComm PapChksFlash PapI2cNvram CompSdramWrR PapS2bEcho PapI2cDisp For DSW version 1.6 and above. the DSW version number will be displayed on the local display. Press NEXT to continue to the display tes