Philips-VAE-8020-Service-Manual(1) 电路图 维修手册.pdf

Published by MW 0272 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 12471 Copyright 2002 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. DVD-Video RecorderDVD+RW Basic Engine VAE8015 VAE8020 ContentsPage 1Technical Specifications2 2Safety Instructions, Warnings and Notes3 3Directions for Use(No DFU necessary)4 4Mechanical Instructions5 5Service Modes, Error Codes and Fault Finding7 6Block Diagram and Testpoint Overviews Block Diagram17 Testpoint Overview Servo Board 4301518 Testpoint Overview Servo Board 4335319 7Electrical Diagrams and Print-LayoutsDiagram PWB Servo Board 43015: Processor(Diagram 1) 2025-26 Servo Board 43015: MACE 3(Diagram 2) 2125-26 Servo Board 43015: Driver(Diagram 3) 2225-26 Servo Board 43015: Dec./Encoder (Diagram 4) 2325-26 Servo Board 43015: Power(Diagram 5) 2425-26 Servo Board 43353: Processor(Diagram 1) 2732-33 Servo Board 43353: MACE 3(Diagram 2) 2832-33 Servo Board 43353: Driver(Diagram 3) 2932-33 Servo Board 43353: Dec./Encoder (Diagram 4) 3032-33 Servo Board 43353: Power(Diagram 5) 3132-33 8Alignments(No alignments necessary)35 9Circuit Descriptions35 List of Abbreviations40 IC Data41 10 Spare Parts List42 RadioFans.CN 收音机爱 好者资料库 Technical SpecificationsEN 2VAE8015 / 80201. 1.Technical Specifications VAE8010 functionality: Loading of 8 cm and 12 cm discs by a motorized tray Disc type recognition and in case of a DVD+RW disc laser power calibration Servo control for disc rotation, sledge movements, tilt, focus and actuator position EFM+ encoding / decoding for DVD, and EFM decoding for CD Writes and read DVD+RW discs and reads DVD, CD and CD-R/RW discs Linking control, header insertion and sector number updating at record Interfacing to the MPEG back-end (S2B) for control and (I2S and V4) for data The back-end has to provide MPEG data processing, data buffering, construction of logical format for Lead-in, Data area and Lead-out part of the DVD+RW dis RadioFans.CN 收音机爱 好者资料库 Safety Instructions, Warnings and NotesEN 3VAE8015 / 80202. 2.Safety Instructions, Warnings and Notes 2.1Safety Instructions 2.1.1General Safety Safety regulations require that during a repair: Connect the unit to the mains via an isolation transformer. Replace safety components, indicated by the symbol , only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard. Safety regulations require that after a repair, you must return the unit in its original condition. Pay, in particular, attention to the following points: Route the wires/cables correctly, and fix them with the mounted cable clamps. Check the insulation of the mains lead for external damage. Check the electrical DC resistance between the mains plug and the secondary side: 1.Unplug the mains cord, and connect a wire between the two pins of the mains plug. 2.Set the mains switch to the on position (keep the mains cord unplugged!). 3.Measure the resistance value between the mains plug and the front panel, controls, and chassis bottom. 4.Repair or correct unit when the resistance measurement is less than 1 M. 5.Verify this, before you return the unit to the customer/ user (ref. UL-standard no. 1492). 6.Switch the unit off, and remove the wire between the two pins of the mains plug. 2.1.2Laser Safety This unit employs a laser. Only qualified service personnel may remove the cover, or attempt to service this device (due to possible eye injury). Laser Device Unit Type: Semiconductor laser GaAlAs Wavelength: 650 nm (DVD) : 780 nm (VCD/CD) Output Power: 20 mW (DVD+RW writing) : 0.8 mW (DVD reading) : 0.3 mW (VCD/CD reading) Beam divergence: 60 degree Figure 2-1 Class 1 Laser Product Note: Use of controls or adjustments or performance of procedure other than those specified herein, may result in hazardous radiation exposure. Avoid direct exposure to beam. 2.2Warnings 2.2.1General All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD, symbol ). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are at the same potential as the mass of the set by a wristband with resistance. Keep components and tools at this same potential. Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and earth cable) 4822 310 10671. Wristband tester 4822 344 13999. Be careful during measurements in the live voltage section. The primary side of the power supply (pos. 1005), including the heatsink, carries live mains voltage when you connect the player to the mains (even when the player is off!). It is possible to touch copper tracks and/or components in this unshielded primary area, when you service the player. Service personnel must take precautions to prevent touching this area or components in this area. A lightning stroke and a stripe-marked printing on the printed wiring board, indicate the primary side of the power supply. Never replace modules, or components, while the unit is on. 2.2.2Laser The use of optical instruments with this product, will increase eye hazard. Only qualified service personnel may remove the cover or attempt to service this device, due to possible eye injury. Repair handling should take place as much as possible with a disc loaded inside the player. Text below is placed inside the unit, on the laser cover shield: Figure 2-2 Warning text CAUTION VISIBLE AND INVISIBLE LASER RADIATION 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 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 RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU ! RadioFans.CN 收音机爱 好者资料库 Directions For UseEN 4VAE8015 / 80203. 3. Directions For Use Not applicable Mechanical InstructionsEN 5VAE8015 / 80204. 4.Mechanical Instructions Index of this chapter: 1.General 2.Disassembly 3.Re-assembly Note: Figures below can deviate slightly from the actual situation, due to the different set executions. 4.1General Follow the disassemble instructions in described order. Do not place the unit with its PWB on a hard surface (e.g. table), as it could damage the components on it. Always place something soft (a towel or foam cushion) under it. Never touch the lens of the laser. Take sufficient ESD measures during (dis)assembly. 4.2Disassembly Figure 4-1 Basic Engine disassembly (part 1) You can divide the Basic Engine into the following parts: 1.Loader (fan, clamp, and tray assy). 2.PWB (or mono board). 3.DVD-Module (OPU, turntable motor, and sledge-motor assy). 4.2.1Loader 1.Disconnect the 2-wire fan cable from the PWB. 2.Remove the fan assy, by releasing the four side clamps 1 while moving it upwards. 3.Remove the clamp assy, by releasing the two side clamps 2 while moving it upwards. 4.2.2PWB 1.Flip the module180 degrees, so you can access the PWB. 2.Disconnect the four flex foils from the PWB connectors (1100, 1300, 1302, and 1303) at the component side. For the flex foil on connector 1100, you first must remove the cable clamp 3. The easiest way to do this is to push down the two fixation pins of the clamp (via the holes in the PWB) by means of a pencil or small screwdriver. 3.Disconnect the remaining cables (tray- and fan-motor cable) at the solder side of the PWB 4.Remove the four screws (Torx 8) that hold the PWB 4. 5.Now you can remove the board. 4.2.3DVD-M Caution: Never try to align the DVD-Module! ! ! Only the factory can do this properly. Service engineers are only allowed to exchange the sledge motor assy. Figure 4-2 Basic Engine disassembly (part 2) 1.Slide the tray pin in the direction of the arrow 1, in order to release the disc tray. 2.Flip the module180 degrees and pull out the tray 2. Now you can access the DVD-Module. 3.Remove the four screws 3 with a Torx 6 screwdriver, and lift the DVD-M upwards 4 at the side of the disc-motor. It hinges in the bracket at the side of the tilt-motor. CL 26532126_010.eps 191102 1 2 2 1 4 3 PWB Loader CL 26532126_011.eps 191102 3 4 2 1 OPU Disc motor DVD-M Tilt monitor Mechanical InstructionsEN 6VAE8015 / 80204. 4.2.4Sledge-motor Assy Caution: Never try to align the DVD-Module! ! ! Only the factory can do this properly. Service engineers are only allowed to exchange the sledge motor assy. Figure 4-3 Sledge-motor assy 1.Place the DVD-Module, with the laser facing downwards, on a soft surface. 2.Remove the three screws 1 that hold the sledge-motor assy, and lift the assy upwards. You can replace it now. 3.If necessary, it is now also possible to replace the sledge- rack 2 that is hinged in the sledge assy. 4.3Re-assembly To re-assemble the module, do all processes in reverse order. Be sure to: Sledge-motor assy: Mesh the teeth of the sledge motor and sledge rack properly, during mounting of the sledge- motor assy. DVD-M: Point the laser up (towards the tray), when you mount the DVD-M in the bracket. Complete module: Place all wires/cables in their original positions CL 26532126_014.eps 191102 1 1 2 1 Service Modes, Error Codes and Fault FindingEN 7VAE8015 / 80205. 5.Service Modes, Error Codes and Fault Finding Index of this chapter: 1.General 2.Start-up Measurements 3.Diagnostic Software 4.Nuclei Error Codes 5.Fault Finding 5.1General Impedance of measuring-equipment should be 1 MOhm. For testing the Basic Engine, connect it to a DVD-recorder of the DVDR1000, 900, or 800 series. Most tests are done by software commands. Together with the software command you will find a Ref.# nbr. This is the number of the diagnostic nucleus used for this test. You can find information that is more detailed in the chapter Diagnostic Nuclei. Levels: Most measurements are digital measurements. The signal levels specification in this document are defined as follows: low 3.0V LOW 4.5V 5.2Start-up Measurements 5.2.1Power Supply Check Table 5-1 Table of supply input voltages. Table 5-2 Table of derived supply voltages. The module operates in power off and power on only. There is no standby mode at module level. In power off, the module does not respond to any communication or signal. Before starting the measurement, connect the power supply to the mono board via connector 1000, and the PC interface cable to the Service Interface connector of the test recorder. 5.2.2Oscillator Check Table 5-3 Table of clock signals. On the mono board, there are two external oscillators (OSCOUT and CROUT), which are the reference for all clock signals derived in several ICs. To check whether the program (in the MACE microprocessor) is running after power on, you can monitor the PSEN (OEn of Flash ROM) on I223 (see test point overview in chapter 6). You can measure the Servo clocks at I326 (RAdial), I334 (FOcus), and I343 (SLedge). 5.3Diagnostic Software Due to the complexity of a DVD recorder, the time to find a defect in the recorder can become long. To reduce this time, the recorder has been equipped with Diagnostic and Service software (DS). The DS offers functionality to diagnose the DVDR hardware and tests the following: Interconnections between components. Accessibility of components. Functionality of the audio and video paths. This is also valid for the Basic Engine. One can access this functionality via several interfaces: 1.End user/Dealer script interface. 2.Player script interface. 3.Menu and command interface. This part describes all interfaces from the outside world to the diagnostic software, how to use these interfaces, and how to access them. First some definitions: Diagnostic Nucleus. Part of the Diagnostic Software. Each nucleus contains an atomic and software independent diagnostic test, testing a functional part of the DVD player hardware on component level. Script. Part of the Diagnostic Software. Each script contains a sequence of Diagnostic Nuclei to be executed. Service PC. PC used by a service or repair person to communicate with the Diagnostic Software in the DVD player. 5.3.1End User/Dealer Script Interface The End user/Dealer script interface gives a diagnosis on a stand-alone DVD recorder; no other equipment is needed. During this mode, a number of hardware tests (nuclei) are automatically executed to check if the recorder is faulty. The diagnosis is simply a fail or pass message. If the message FAIL appears on the display, there is apparently a failure in the recorder. If the message PASS appears, the nuclei in this mode have been executed successfully. There can be still a failure in the recorder because the nuclei in this mode do not cover the complete functionality of the recorder. Signal Test point DescriptionSpecifi- cations Toler- ance Unit +3V3I007Input of supply +3.31%V +5I008Input of supply +51%V +4V6I010Input of supply +4.61%V -5I011Input of supply -51%V +12I012Input of supply +21%V GNDI015, I016Input of supply Signal Test point DescriptionSpecifi- cations Toler- ance Unit D3V3I006Digital 3V3+3.32%V A3V3I007Analogue 3V3 +3.32%V +5VI008Analogue 5V+52%V D5VI009Digital 5V+52%V +3V3E F001OPU 3V3 +3.32%V -5I011Neg. voltage-52%V +12I01212V +122%V VbiasI014Bias voltage-1.72%V GNDI017, I018 Input of supply 00 %V SignalTest point Descrip- tion Spec. Toler- ance Unit OSCOUTI219Ref. Clock MACE 8.483 +/- 70 kHz MHz CROUTI443Ref. Clock HDR65 8.501 +/- 70 kHz MHz PSENI223OEN Flash ROM 5.324 +/- 70 kHz MHz RA/FO/SL I326/I334/ I343 Servo clock 2.120 +/- 20 kHz MHz Service Modes, Error Codes and Fault FindingEN 8VAE8015 / 80205. Note: As this mode is meant for a complete DVD Recorder, and does not add much for testing the Basic Engine, reference is made to the appropriate DVD Recorder Service Manual for a detailed description: DVDR1000: 3122 785 11600 DVDR990: 3122 785 12430 DVDR98x: 3122 785 11970 DVDR8xx: 3122 785 12200 5.3.2Player Script Interface The Player script will give the opportunity to perform a test that will determine which of the DVD recorders modules are faulty, to read the error log and to perform an endurance loop test. To successfully perform the tests, connect the DVD recorder to a TV set. To be able to check results of certain nuclei, the player script expects some interaction of the user (i.e. to approve a test picture or a test sound). Some nuclei (e.g. nuclei that test functionality of the DVDR module) require that a DVD+RW dis