Philips-DVD-580-M-Service-Manual(1) 电路图 维修手册.pdf

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1、Published by MW 0267 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 12290 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 for

2、m or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. DVD-Video PlayerDVD580M DVD580M /691 /001 CL 26532085_000.eps 180702 ContentsPage 1Technical Specs and Connection Facilities2 2Safety Instructions, Warnings, Notes, and Service Hints3 3Dire

3、ctions for Use4 4Mechanical- and Dismantling Instructions13 5Diagnostic Software, Trouble Shooting and Test Instructions(Not Applicable)17 6Wiring-, Block Diagrams Block Diagram29 Wiring Diagram30 7Electrical Diagrams and Print-LayoutsDiagram PWB Power Board3132 Front Board3334 Decoder Board: Proces

4、sor and Memory3537-38 Decoder Board: Audio Interface3637-38 AV Board (NON-EU)3940 AV Scart Board (EU)4142 Karaoke Board4343 8Alignments(Not Applicable)45 9Circuit Descriptions45 10 Spare Parts List53 RadioFans.CN 收音机爱 好者资料库 Technical SpecificationsEN 2DVD580M1. 1.Technical Specifications CL 26532085

5、_073.eps 180702 RadioFans.CN 收音机爱 好者资料库 Safety Instructions, Warnings, Notes, and Service HintsEN 3DVD580M2. 2.Safety Instructions, Warnings, Notes, and Service Hints 2.1Safety Instructions 2.1.1General Safety Safety regulations require that during a repair: Connect the unit to the mains via an isol

6、ation 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 retur

7、n 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 sec

8、ondary 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 un

9、it 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 per

10、sonnel 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

11、Figure 2-1 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, ?

12、). 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,

13、 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 t

14、o 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 p

15、rinting 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 s

16、ervice 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 2.2.3Notes Dolby Manufactered under licence from Dolby Laboratories. “Dolby”, “Pro L

17、ogic” and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works. 1992-1997 Dolby Laboratories, Inc. All rights reserved. Figure 2-3 Trusurround TRUSURROUND, SRS and symbol (fig 2-4) are trademarks of SRS Labs, Inc. TRUSURROUND technology is manufactured under licen

18、ce frm SRS labs, Inc. Figure 2-4 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 L

19、ASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLEN VARO! AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STE LYLLE L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID

20、 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 4DVD580M3. 3.Directions for Use Directions for UseEN 5DVD580M3. Directions for UseEN 6DVD580M3. Directions for UseEN 7DVD580M3.

21、 Directions for UseEN 8DVD580M3. Directions for UseEN 9DVD580M3. Directions for UseEN 10DVD580M3. Directions for UseEN 11DVD580M3. Directions for UseEN 12DVD580M3. Mechanical- and Dismantling InstructionsEN 13DVD580M4. 4.Mechanical- and Dismantling Instructions Figure 4-1 Exploded View 1014 CAB. UPP

22、ER 1003 LOADER TD-S202 1016 LENS 1012 FRONT PANEL 1015 FUNCTION KEY 1040 LOCKNUT 1013 CAB. LOWER 1038 STAND 1011 CAB. BACK 1037 BACKPLATE CL 26532085_058.eps 160702 Mechanical- and Dismantling InstructionsEN 14DVD580M4. 4.1Dismantling Instruction In this paragraph some tips are given to dismantle th

23、e DVD580M player. For item number, refer to the exploded view. 4.1.1Remove 4 screws at the rear cover (1011) Figure 4-2 Back View 4.1.2Push the top cover(1014) toward the rear. Figure 4-3 Back Panel Detached 4.1.3Inner metal plate will be seen after removing the top cover. Figure 4-4 Remove Top Cove

24、r 4.1.4Remove the metal plate, the loader (1003) and other modules will be visable. Figure 4-5 Remove Inter Top CL 26532085_020.eps 180702 CL 26532085_021.eps 180702 CL 26532085_009.eps 100702 CL 26532085_017.eps 100702 Mechanical- and Dismantling InstructionsEN 15DVD580M4. 4.1.5Use a small flat tip

25、 screw driver to release the snaps on the front panel (1012) and gently pull the panel out from the set. Figure 4-6 Remove Front Panel 4.1.6Remove 4 screws at both sides of the loader (1003) and disconnect 2 wire connections. Figure 4-7 Remove Loader Now the loader(1003) is removed. Figure 4-8 LP Se

26、parate 4.1.7Remove the AV board by removing 2 screws and the cover plate (1037). Figure 4-9 Output Board Top View CL 26532085_018.eps 100702 CL 26532085_015.eps 100702 CL 26532085_014.eps 100702 CL 26532085_012.eps 100702 Mechanical- and Dismantling InstructionsEN 16DVD580M4. When the AV board is re

27、moved, the decoder board will be visable. Figure 4-10 Output PCB open 4.1.8Pictures below view on the modules. AV board Figure 4-11 Video Board Decoder board Figure 4-12 Decoder Board Karaoke Figure 4-13 Karaoke Board CL 26532085_011.eps 100702 CL 26532085_008.eps 100702 CL 26532085_019.eps 100702 C

28、L 26532085_016.eps 100702 Diagnostic Software, Trouble Shooting and Test InstructionsEN 17DVD580M5. 5.Diagnostic Software, Trouble Shooting and Test Instructions 5.1Service Hints 5.1.1Repair Tips DVD Engine The DVD Engine is a non-repairable unit and in case of failure, it has to be replaced with a

29、complete Engine. Encoder, Switched Mode Power Supply, Karaoke, and Front Display Board All the boards have to be repaired down to component level. 5.1.2Change of Region Code The region code can be change according to the following procedure: 1.Press button on the front of the player. 2.Enter the 4-d

30、igit code 5 on the remote control. 3.Enter one of the keys below to change the software setting. REGION CODE: USA = 1 EUROPE = 2 AP = 3 LATAM = 4 INDIA / RUSSIA = 5 CHINA = 6 4.Press button on the remote control for 5 times. 5.The change should effect immediately with information indicated on TV scr

31、een. 5.1.3Software Upgrade via Download Disc The application software can be flashed into the DVD player by means of a CD-ROM disc. The CD-ROM disc has to be made with a CD writer. Note: Ensure the filename used for making the CDR must be identical to the application software file name as display in

32、 the player. Application Software 1.Insert the DOWNLOAD DISC into the player. 2.The upgrading operation will start automatically. 3.Once the DOWNLOAD DISC is recognized, the player will display the filename on the TV screen. 4.The word will flash on the TV screen indicates the progress. 5.Once when

33、the upgrading is completed, the word will display momentary on the TV screen. 6.The TV screen will become BLUE and the player will goes into standby mode. 5.1.4Verify Setting To check that the setting has change successfully. 1.Press button on the front of the player. 2.Press button on the remote co

34、ntrol while display shown EJECT. 3.Two lines text will appear on the TV screen. That is how it looks like. TD580A.00B TDDVD580V02-ES 4.In the text, the following numbers refer to: TD580A.00B = refer to application software filename. TDDVD580V02-ES = refer to application software version. 5.1.5ComPai

35、r There is no ComPair available for DVD580M player 5.2Trouble Shooting In this paragraph some troubleshooting tips are given to diagnos the DVD580M player. For detailed diagnostics, check the faulting tree since no built-in diagnostic software is available in the player. 5.2.1DVD Engine The DVD engi

36、ne is a non-repairable component. Hence, it is necessary to determine if any fault condition of the player is caused by the DVD engine before replacing it. The engine is a stand-alone system, an integrated unit of Slot loader and servo board, which does not need to be connected to the decoder board

37、to perform it basic operations. Once a stable voltage is supplied to the engine,some mechanical movement will be observed. Hence, to determine whether the engine is faulty, remove the 40 pins flex cable and observe the mechanical movement. If no mechanical movement is observed, the engine should be

38、faulty and it should be reconfirmed with a working engine. The Slot Loader has an optical unit consisting of two lasers, one for CD with a wavelength of 780 nm, and one for, DVD with a wavelength of 650 nm. If any one type of disc (DVD or VCD / CD) cannot be identified by the player, it can be sure

39、that the fault is due to the engine. Diagnostic Software, Trouble Shooting and Test InstructionsEN 18DVD580M5. 5.3Fault Finding Trees 5.3.1No Operation Figure 5-1 Standby LED does not light, The player does not operates Check point : The output voltage of VCC is 5 V + / - 5 %. Observe: If the LED ca

40、n be lighted up again when the R314 on front panel board is short circuit manually. Solution: Replace the R314 Solution : Replace the coil L201 Check point : The input side of R201 is over 11V. Observe : N/A Check point : The 11V at the output of IC U201 pin number 3. Observe : N/A Yes No Solution :

41、 Replace the IC U201 Solution : Replace the resistor R201 Solution : Replace the coil L203 No Yes Yes No Check point : Short circuit the terminals of L 203 . Observe : The operation can be restored. Yes Check point : Short circuit the pin number 3 and 4 of the L 201 . Observe : The operation can be

42、restored. No Yes Check point : Check the FUSE 2 01 Observe : FUSE is burn Go No Solution : Replace the FUSE Replace the External PSU No Yes CL 26532085-060.eps 180702 Diagnostic Software, Trouble Shooting and Test InstructionsEN 19DVD580M5. 5.3.2No Supply at power on Figure 5-2 Stand LED light up, N

43、ot supply voltage output when press Power key Check point : PCON Observe : Use a oscilloscope to measure the PCON voltage output jumps between 0V to 5V. Check point : Measure Q208 Observe : 1) BASE terminal of Q 208 is 0v7 2) Collector terminal of Q208 is 0v3 Go No Replace Q208 Yes No Check point :

44、Pin number 1 of Q 203 Observe : the voltage should be +6v Yes No No Yes Check point : Q 203 Observe : The waveform at Gate terminal is normal. Check Points: Waveform restore when R211 terminal is shorted circuit. if Not Check if R213 and R 214 are damaged. if Not Check is C203 damaged if not Wavefor

45、m restored when R216 is short externally. if not Check if any surrounding components at U203 any circuit link in the closed loop to be opened will cause the damage of high voltage components in the system. Hence, precaution at the control loop has to be taken when proceed the service work. Key Compo

46、nents High precision Variable voltage stabiliser TL 431 TL431 is constructed as an error amplifier for detecting the voltage fluctuation from power transformer. Figure 9-8 TL431 Block diagram The TL431 includes 4 part of circuit: Error amplify A Internal reference voltage V ref of 2v5. A NPN transis

47、tor VT, the function of this transistor is to adjust the loading current Protection diode VD, the diode is used to prevent the damage of K - A terminal when reverse connection. TL431 operation principle: When the voltage at K (pin 3) starts to grow, the VREF is also growing. When VREF grows higher t

48、han the internal Vref (2V5), the error-amplify output a positive voltage that driving the transistor VT to make the terminal voltage at K (cathode) falls. On the other hand, when the VREF drop lower than the internal Vref, the error amplify outputs a lower voltage to VT (error amplify transistor), h

49、ence making the terminal voltage at K to be higher. The operation of TL431 in DVD580M system: In the power supply circuit of DVD580M, pin 1 of U203 (TL431) is used to detect the voltage fluctuation of +3.3V; the varying voltage at pin 1 will be transfer to current output from pin 3 of TL431 that driving to Q205 then Q202 as a feedback path of closed control loop. The feedback signal is finally controlling the ON -OFF timing of Q203 (power