Philips-DVD-590-M-Service-Manual 电路图 维修手册.pdf

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1、CLASS 1 LASER PRODUCT Service Manual Service ServiceService ServiceService DVD590M/69 Copyright 2004 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 mea

2、ns, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by KC-TCL 0401 Service AudioPrinted in The NetherlandsSubject to modification GB 3139 785 30471 DVD Player TABLE OF CONTENTS Page Technical Specifications .1-2 Safety Instruction, Warnings and N

3、otes.1-3 Mechanical and Dismantling Instruction .2 Region Code, Software version and upgrades .3 Trouble Shooting Chart .4 Block diagram and Wiring diagram .5 Electrical Schematics and Layouts: Loader Module (For information only) .6 Front Board .7 Karaoke Amplifier & Echo Boards .8 Power Board .9 M

4、echanical Exploded view & parts list .10 Revision List . 11 Version 1.1 Technical Specifications Playback system DVD Video Video CD &SVCD CD (CD-R and CD-RW) MP3 CD DVD+RW / DVD+R (finished) TV standard (PAL/50Hz) (NTSC/60Hz) Number of lines 625 525 Playback Multi standard (PAL/NTSC) Video performan

5、ce Video output 1Vpp into 75ohm S-video output Y: 1Vpp into 75ohm C: 0.3Vpp into 75ohm Component video output Y: 1Vpp into 75ohm Pb/Cb Pr/Cr: 0.7Vpp into 75ohm Audio format Digital MPEJ Compressed Digital Dolby Digital 16, 20, 24bits PCM fs, 44.1, 48, 96kHz Analogue Stereo Sound Dolby surround-compa

6、tible downmix from Dolby Digital multi-channel sound on 2speakers. Audio performance DA converter 24bits DVD fs 96kHz 4Hz-44kHz DVD/SVCD fs 48kHz 4Hz-22kHz SVCD/VCD/CD fs 44.1kHz 4Hz-20kHz Signal-Noise (1kHz) 90dB Dynamic Range (1kHz) 80dB Cross talk (1kHz) 80dB Distortion and Noise (1kHz) 80dB MPEG

7、 MP3 MPEG Audio L3 Connections Y output Cinch (green) Pb/Cb output Cinch (blue) Pr/Cr output Cinch (red) S-video output Mini DIN, 4pins Video output Cinch yellow) Audio L+R output Cinch (white/red) Digital output 1 coaxial IEC958 for CDDA/LPCM IEC1937 for MPEG1/2, Cabinet Dimensions (w X h X d) 228

8、X 56 X 296mm Weight Approximately 2.32 *Typical playing time for movie with 2 spoken languages and 3 subtitle languages. Specifications subjects to change without prior notice. 1-2 Safety instructions 1. General safety Safety regulations require that during a repair: . Connect the unit to the mains

9、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

10、 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

11、 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 the “on” position (keep the mains cord unplug). 3) Measure the resistance value between the mains plug and the front panel, controls, and chassis bottom. 4) Repa

12、ir or correct unit when the resistance measurement is less than 1M O . 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.Laser safety This unit employs a laser. Only qua

13、lified 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 : 650nm (DVD) : 780nm (VCD/CD) Output power : 20mW (DVD+RW writing) : 0.8mW (DVD reading) : 0.3 mW (VCD/CD reading) Beam diver

14、gence: 60 degree 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. Safety instructions, Warnings, Notes 1-3 Warnings 1.General . All ICs and many other semiconductors are susc

15、eptible to electrostatic discharges (ESD). Careless handing 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 equipm

16、ent: 1) Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and earth cable) 4822 310 10671. 2) 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 heat sink, carries

17、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 t

18、his area. A “lighting 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. Laser . The use of optical instruments with this product, will increase eye hazard. . Only qualifi

19、ed service personnel may remove the cover or attempt to service this device, due to possible eye injury. . Repair handing 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: Notes: Manufactured under licence f

20、rom Dolby Laboratories. The double-D symbol is trademarks of Dolby Laboratories, Inc. All rights reserved. CAUTION: VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN, AVOID EXPOSURE TO BEAM. 1-4 Mechanical and Dismantling Instructions Dismantling Instruction In this paragraph some tips are given to di

21、smantle the DVD590M player. For item number, refer to the exploded view. Step1: Remove 4 screws at the Rear Cover. (Figure 1) Step2: Push the Top Cover toward the Rear. (Figure 2) Step3: Remove 5screws at the Inner Metal Plate and then open it. (Figure 3) Figure 1 Figure 2 Figure 3 2 pcs ( M/C screw

22、 F3x7) 5pcs (Triangle M/C Screw B3x6) 2-1 2 pcs ( M/C screw F3x7) Mechanical and Dismantling Instructions Step4: Remove the metal plate, the Loader and other modules will be visible. (Figure 4) Step5: Use a small flat tip screw driver to release the snaps on the Front Panel and gently pull the Panel

23、 out from the set. Figure 4 Figure 5 2-2 (Figure 5) Mechanical and Dismantling Instructions Step6: Remove 4 screws that added ellipses at both sides of the Loader and disconnect 4 wire connections as the arrowhead aim. (Figure 6) Figure 6 Figure 7 2-3 Figure 8 Step7: Remove the power board. First re

24、move the 5 screws that added ellipses (Figure 7), secondly remove the 8 screws inside the big ellipse, (Figure 8) Mechanical and Dismantling Instructions . Karaoke Amplifier Board & Echo Board Karaoke Amplifier Board Karaoke ECHO Board . How to remove the disc that is jammed in the loader? Firstly,

25、remove the screw on the Loader cover. PUSH Secondly, remove the Loader cover and push the Strap forward until the Disk come out. 2-4 Mechanical and Dismantling Instructions . ATTENTION OF REPAIRING Add silicon glue around the two capacitors Add silicon glue on the PCB Pads 2-5 Add silicon glue (C326

26、) Add silicon glue (C305) Add silicon glue cover the weld joints of Q301, R306, R304, R305, R302. Add the conductive silicon glue between the IC and the heat sink 3-1 REGION CODE CHANGE & SOFTWARE UPGRADE Upgrade Software A. Prepare Upgrade disc 1. Start the CD Burning software and create a new CD p

27、roject (data Disc) with the following settings: Volume Label:ALICDROM File System:ISO9660 Format:Mode1: CDROM Record Mode:Single Session (Track-at-once), Finalized CD 2. Unzip the zip archive file and place the 2 folders (1 folder with 2 files & 1 folder with 1 dummy file) into the root directory of

28、 the new CD project. 3. Burn the data onto a blank CDR B. Procedure for Software upgrade 1. Power up the set and insert Upgrade CDROM. 2. The set starts reading disc & response with the following display TV screen: FIRMWARE UPGRADING PLEASE WAIT A MOMENT . 3. After about 1 minute the TV screen will

29、display: UPGRADE SUCCESS PLEASE TURN OFF 4. The Upgrade CDROM will eject when the upgrade is completed, removed the Upgrade CDROM. Caution: The set must not be power off during upgrading, in that case the decoder board will be damaged. Reading out the software version to confirm upgrading 1. Power u

30、p the set and press button. 2. Press on the remote control. 3. The software version and other informations are display on the TV screen as follows: ALI SYSTEM SETUP DATE:yyyymmdd (= Version of application software) MPEG F/W:xx.xx.x.x (software version of MPEG) MPEG H/W:xx-xx-xxx SERVO F/W:xxxxx (sof

31、tware version of Servo) SERVO H/W:xxxxx.xx VENDER:PHILIPS VENDER VER:590AP DISK TYPE:NTSC DISABLE VCDOFF REGION CODE3 PARENTAL CC8 PARENTAL PW0000 Changing the Region Code 1. Power up the set and press button. 2. Press on the remote control. 3. The software version and other informations are display

32、 on the TV screen as follows: ALI SYSTEM SETUP DATE:yyyymmdd (= Version of application software) MPEG F/W:xx.xx.x.x (software version of MPEG) MPEG H/W:xx-xx-xxx SERVO F/W:xxxxx (software version of Servo) SERVO H/W:xxxxx.xx VENDER:PHILIPS VENDER VER:590AP DISK TYPE:NTSC DISABLE VCDOFF REGION CODE3

33、PARENTAL CC8 PARENTAL PW0000 4. Highlight the Region code bar with the or cursor buttons and press button on the remote control 5. Key in the new button as per below: 1=USA 2=Europe 3=AP 4=LATAM 5=India / Russia 6=China 6. Confirm entry by pressing button on the remote control. 7. Press the button o

34、n the remote control to save & exit. Note: Repeat steps 1 - 3 to check that new region code when necessary. TROUBLE SHOOTING CHART NO Picture Check point: If pin3 of U301 has vibrate signal Replace the U301 TEA1523P Solution: Replace the R5 or U2 Solution: Replace the Diode D310 Solution: Check if F

35、301 Tr301 L031 D302 D303 D304 Is damaged GO NO YES YES Standby LED does not light Check point: The output voltage of VCC is 5V+/- 5% Observe: If the LED can be lighted up again when the R5 on front panel Board is shot circuit manually. Check point: The voltage of the anode of capacitor C305 is over

36、150V Observe: N/A NO Check point: The pin1 of C303 is 2.5V Observe: N/A NO Yes NO 4-1 Trouble Shooting Chart No supply at power on YES YES YES YES NO NO NO Check point: PCON Observe: Use an oscilloscope to measure the PCON voltage output jumps from0.7V to 0V. Check point: L305 Observe: The waveform

37、at Gate terminal is normal. The pin4 of Cn303 is 5V. Check if VA+ VA- +2.5V are Ok Solution: Replace Q302 Q303 U304 if damaged Solution: Short PCON to GND and voltage output restored Replace the CPU IC on front panel Observe: Check D311 Solution: Replace if damaged Replace Q306 GO Stand LED Light up

38、 Not supply voltage output when press power key Check point: Measure Q306 Observe:? BASE terminal Q306 is 0V ? Collection terminal of Q306 is 5V Check point: Pin4 of Cn303 Observe: the voltage should be +5V 4-2 Trouble Shooting Chart No video and sound Solution: 1) Check the inter-connection between

39、 power supply board and decoder board, J15 to Con303 2) Check the supply voltage at the output of U204 pin2 and pin 3. Solution: Check C36 C37 L35 L36 and Y1(27MHz crystal) Solution: Replace Q9 Solution: Replace U7 Solution: Check the reset circuit Q1 R33 R35 R33 R31 D2 Be69 Solution Replace U2 (EEP

40、ROM) No Video, Sound output and LED display Check point: Measure the inter-connection pin 1 Pin 6 of CON303 on decoder board. Observe: the +5V and +2.5 supply voltage are Presented. Board is shot circuit manually. Check point: Q9 (Lm117-3.3V) on main board Observe: the +3v3 at pin3 of Q9 Check point

41、: Measure pin112 of Ali M3351 Observe: Measure the 27Mhz oscillation frequency Check point: check the collector of Q1 Observe: a stable +5V is presented The pin1 of C303 is 2.5V Observe: N/A YES NO NO YES NO YES YES NO Check points: check the IC U2, U3, U4, U17 on Main board Observe: is there any sh

42、ort circuit between components Check points: Measure the output voltage on the address bus of U7 4-3 NO YES Check points: Pin 6 and pin 5 of U2 on main board. Observe: The IC clock and data signals are presented YES NO NO Pcon waveform 27M wave form Trouble Shooting Chart No Video Signal present at

43、some of resistors Check CVBS jacks, S-video jacks, Y/ Pb /Pr jacks Solution: If not any signal at all resistor Replace U1 (ALI M3351) Check if any poor contact between 34 and Cn503 Solution: Replace if Q6,Q7, Q4, Q5 damaged NO Audio output is normal but no Video Check point: R87, R92, R95, R96 on the main board Observe: Is there any video output signal Board is shot circuit manually. Check point: L12, L11, L6,L4,L9,L7 on main board Obs