Philips-LX-3750-W-Service-Manual(1) 电路图 维修手册.pdf

《Philips-LX-3750-W-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Philips-LX-3750-W-Service-Manual(1) 电路图 维修手册.pdf（90页珍藏版）》请在收音机爱好者资料库上搜索。

1、Service ServiceService ServiceService LX3700D/21S/21R/22S/25S LX3750W/22S/25S/37 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, e

2、lectronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by SL-ET0319 Service Audio Printed in The Netherlands Subject to modification 3140 785 32590 DVD Receiver Version 1.1 TABLE OF CONTENTS Page Location of PC Boards.1-2 Versions Variation fr Reparature

3、n sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement tes

4、t from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GB Warning ! Invisible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och s

5、prren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DK Advarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. FUNCTIONAL OVERVIEW

6、 1-7 Functional Overview Front panels 1OPEN / CLOSE to open or close the disc tray. 2Disc Tray 3SOURCE to select the relevant active mode: TV/AV, DISC, TUNER or AUX/DI. 4SURROUND to select multichannel surround (Dolby Digital, DTS, VSS Dolby ProLogic or Dolby ProLogic II) or stereo sound effect. 5PR

7、OGRAM in Disc mode, to program disc tracks. in Tuner mode, to program preset radio station. 6VOLUME to adjust the master volume. Front view Top view Side view 7STANDBY-ON to switch between power on and standby modes. 8PLAY / PAUSE (in Disc mode only) to start or interrupt disc playback. 9STOP (in di

8、sc mode only) to stop playing the disc. 0SEARCH S / T in Disc mode, press to skip to the previous/next chapter/ track. in Disc mode, hold down to fast reverse/forward the disc. in Tuner mode, to tune to a lower or higher radio frequency. !nnnnn to connect headphones. 1253 4 67980 ! 1MW / FM ANTENNA

9、connect to the MW loop antenna or FM antenna. 2AUDIO IN -AUX connect to the analog audio outputs of a TV or VCR. 3AUDIO OUT connect to the analog audio inputs of an external recording device or amplifier. 4WOOFER LINE OUT connect to an active subwoofer (Optional). 5DIGITAL OUT - OPTICAL connect to a

10、n audio equipment with digital (optical) audio input. 6DIGITAL OUT - COAXIAL connect to an audio equipment with digital (coaxial) audio input. Caution: Do not touch the inner pins of the jacks on the rear panel. Electrostatic discharge may cause permanent damage to the unit. 7DIGITAL IN connect from

11、 an audio equipment with digital audio output. 8SPEAKERS connect to the front,center, rear (surround) and subwoofer speakers. 9A/V SCART OUT connect to TV with SCART input. 0S-VIDEO OUT connect to a TV with S-video input. !VIDEO OUT connect to a TV with video input. AC Power Cord connect to a standa

12、rd AC outlet. Rear panel Functional Overview 2? A/V SCAR? T OUT? AC? ? MA? IN? S? A? UDIO IN? AU? X? A? UDIO OUT? W? OOFER? LINE OUT? S-VIDEO? VI?DE? O ?OU? T? VIDEO? AM? ANTENNA? (8 ? )? ? ? ? ? ? ? S?S? P?P? E?E? A?A? K?K? E?E? R?R? S?S? FR?SL?SR?SW?CF?L? OUT? OPTICAL?CO?AXIAL? DIGIT? AL? IN? FM (

13、75 ? )? 12 3 4 5 6 7890 ! FUNCTIONAL OVERVIEW 1-8 1 2 3 4 5 6 7 8 9 0 4 5 should be viewed only by adults due to graphic sexual material, violence, or language. 7 NC-17 No children under age 17; not recommended viewing for children under age 17. 6 PG-R Parental Guidance - Restricted; recommended tha

14、t parents restrict children under 17 from viewing or allow to view only when supervised by a parent or adult guardian. 4 PG13 Material is unsuitable for children under age 13. 3 PG Parental Guidance suggested. 1 G General Audience; recommended as acceptable for viewers of all ages. To play a higher

15、rated disc or scene than the level set Enter the 4-digit code before resetting the rating level to a higher number (go to “Password”). If you forget the 4-digit code 1Press 9 four times when forgotten the password and the system will change back to the default password. 2Go to “Password” and enter y

16、our new code. Notes: Some DVDs are not encoded with a rating though the movie rating is printed on the disc jacket. The rating level feature does not work for such discs. Password To set a new password for the parental control or to change the password. The password supplied as default is 1234. Menu

17、 Language Select the language for on screen display. Default If RESET is selected, all the items in the setup menu will be reset to default setting, except Parental Setting. Care and safety information Avoid high temperatures, moisture, water and dust. Do not expose the system, batteries or discs to

18、 humidity, rain, sand or excessive heat (caused by heating equipment or direct sunlight.) Always keep the disc tray closed to avoid dust on the lens. Avoid condensation problem The lens may cloud over when the player is suddenly moved from cold to warm surroundings, making it impossible to play a di

19、sc. Leave the player in the warm environment until the moisture evaporates. Do not block the vents Do not operate the DVD system in an enclosed cabinet, allow about 10 cm (4 inches) of free space all around the player for adequate ventilation. Care of disc To clean a CD, wipe it in a straight line f

20、rom the center towards the edge using a soft, lint-free cloth. A cleaning agent may damage the disc. Write only on the printed side of a CDR(W) and only with a soft felt-tipped pen. Handle the disc by its edge, do not touch the surface. Care of cabinet Use a soft cloth slightly moistened with a mild

21、 detergent solution. Do not use a solution containing alcohol, spirits, ammonia or abrasives. Finding a suitable location Place the player on a flat, hard, and stable surface. Step 1: Placing the speakers and subwoofers For best possible surround sound, all the speakers (exept subwoofer) should be p

22、laced at the same distance from the listening position. 1 Place the front left and right speakers at equal distances from the TV and at an angle of approximately 45 degrees from the listening position. 2 Place the centre speaker above the TV or the DVD system so the centre channels sound is localize

23、d. 3 Place the surround speakers at normal listening ear level facing each other. 4 Place the subwoofer on the floor near the TV. Notes: To avoid magnetic interference, do not position the front speakers too close to your TV. Allow adequate ventilation around the DVD system. General Information 10 c

24、m (4 inches) 10 cm (4 inches) 10 cm (4 inches) DVD Home Cinema System PHILIPS Connections Step 2: Connecting speakers and subwoofer Connect the supplied speaker system using the supplied speaker cables by matching the colours of the jacks and speaker plugs. Fully insert the plugs of speaker wire int

25、o the jacks on the DVD system. Notes: Ensure that the speaker cables are correctly connected. Improper connections may damage the system due to short- circuit. Do not connect more than one speaker to any one pair of +/- speaker jacks. Do not connect speakers with an impedance lower than the speakers

26、 supplied. Please refer to the SPECIFICATIONS section of this manual. Speakers / Subwoofer Front Left (L) Front Right (R) Center Surround (Rear) Left (L) Surround (Rear) Right (R) Subwoofer Connections black black black black black black white red green blue grey purple - Step 3: Connecting AD905W W

27、ireless System (Only for LX3750W) 1 Connect the supplied Surround Speaker system using the supplied speaker cables to the speaker jacks on the AD905WA WIRELESS RECEIVER by matching the colours of the jacks and speaker plugs. Extend the RECEIVER antenna. 2 Connect the AD905WT WIRELESS TRANSMITTERs sp

28、eaker cables to the speaker jacks on the DVD system. Extend the TRANSMITTER antenna. Notes Adjust the position of the antennas for optimal reception. Position the antennas as far as possible from your TV, VCR or other radiation sources to prevent unwanted interference. To prevent unwanted noise, do

29、not place the AD905W wireless system too close to the DVD system, AC power adapter, TV or other radiation sources. Rear Speaker (Surround Left) Rear Speaker (Surround Right) AD905WA WIRELESS RELEIVER AD905WT WIRELESS TRANSMITTER AUDIO OUT WOOFER LINE OUT (8 ) SPEAKERS SPEAKERS FRSLSRSWCFL OUT OPTICA

30、LCOAXIAL DIGITAL COMPONENT VIDEO OUT IN 41 Pr/CrPb/Cb 1 2 + 1-11 PREPARATIONS AND CONNECTIONS 1-12 PREPARATIONS AND CONNECTIONS Connections Step 4: Connecting TV IMPORTANT! You only need to make one video connection from the following options, depending on the capabilities of your TV system. Connect

31、 the DVD system directly to the TV. Scart Video connection provides higher picture quality. This option must be available on your TV. S-Video connection provides better picture quality. This option must be available on your TV. Using Scart jack Use the scart video cable (black) to connect the DVD sy

32、stems A/V SCART OUT jack to the corresponding Scart input jack on the TV. OR Using Composite Video jack (VIDEO) Use the composite video cable (yellow) to connect the DVD systems VIDEO jack to the video input jack (or labelled as A/V In, Video In, Composite or Baseband) on the TV. OR Using S-Video ja

33、ck Use the S-video cable (not supplied) to connect the DVD systems S-VIDEO jack to the S-Video input jack (or labelled as Y/C or S-VHS) on the TV. If your TV is not equipped with a SCART To hear the TV channels through this DVD system, use the audio cables (white/red) to connect AUDIO IN-AUX jacks t

34、o the corresponding AUDIO OUT jacks on the TV. Before starting operation, press AUX/DI on the remote to select “AUX-ANA”in order to activate the input source. Step 5: Connecting FM/MW antennas 1 Connect the supplied MW loop antenna to the MW jack. Place the MW loop antenna on a shelf or attach it to

35、 a stand or wall. 2 Connect the supplied FM antenna to the FM jack. Extend the FM antenna and fix its ends to the wall. For better FM stereo reception, connect an external FM antenna (not supplied). Notes: Adjust the position of the antennas for optimal reception. Position the antennas as far as pos

36、sible from your TV, VCR or other radiation sources to prevent unwanted interference. AM (MW) 2 A/V SCART OUT AC MAINS S-VIDEO VIDEO OUT VIDEO (8 ) SPEAKERS SPEAKERS SLSRSWCFL Rear of TV (example only) AUDIO OUT S-VIDEO IN VIDEO IN SCART IN SCART IN AUDIO IN AUX AUDIO OUT WOOFER LINE OUT AM ANTENNA S

37、PEAKERS SPEAKERS FRSRCFL OUT OPTICALCOAXIAL DIGITAL IN FM (75 ) FM Antenna AM Antenna Fix the claw to the slot 1 2 Step 6: Connecting the power cord After everything is connected properly, plug in the AC power cord to the power outlet. Never make or change any connections with the power switched on.

38、 Step 7: Connecting a VCR or Cable /Satellite Box Viewing and listening to the playback 1 Connect the VCR or Cable/Satellite Box to the TV as shown. 2 Connect the DVD systems AUDIO IN-AUX jacks to the AUDIO OUT jacks on the VCR or cable / satellite box. Before starting operation, press AUX/DI on the

39、 remote to select “AUX-ANA”in order to activate the input source. Recording DVDs Some DVDs are copy-protected. You cannot record or dub protected discs using a VCR. 3 Connect the DVD systems VIDEO jack to the VIDEO IN jack on the VCR. 4 Connect the DVD systems AUDIO OUT jacks to the AUDIO IN jacks o

40、n the VCR. This will allow you to make analogue stereo (two channel, right and left) recordings. To view DVD playback while recording. You must connect the DVD system to your TV using the SCART or the S- VIDEO connection. ANT IN? TO? ?TV? VCR or Cable/Satellite Box OUT?IN? Rear of TV (example only)

41、AUDIO OUT S-VIDEO IN VIDEO IN SCART IN SCART IN 2? A/V SCAR? T OUT? A? UDIO IN? AU? X? A? UDIO OUT? W? OOFER? LINE OUT? S-VIDEO? VI?DE? O ?OU? T? VIDEO? AM? (8 ? )? ? ? ? ? ? ? S?S? P?P? E?E? A?A? K?K? E?E? R?R? S?S? FR?SL?SR?SW?CF?L? OUT? OPTICAL?CO?AXIAL? DIGIT? AL? IN? 1 2 43 2? A/V SCAR? T OUT?

42、AC? ? MA? IN? S? S-VIDEO? VI?DE? O ?OU? T? VIDEO? AUDIO OUT S-VIDEO IN VIDEO IN SCART IN AC MAINS 4?1? Connections IMPORTANT! The type plate is located at the bottom of the system. This product complies with the radio interference requirements of the European Community. The apparatus shall not be ex

43、pose to dripping or splashing and that no objects filled with liquid such as vase shall be placed on the apparatus. To avoid overheating of the system, a safety circuit has been built in. Therefore, your system may switch to Standby mode automatically under extreme conditions. If this happens, let t

44、he system cool down before reusing it. 1-13 CONNECTIONS AND TROUBLESHOOTING Step 8: Connecting digital audio equipment Listening to the playback 1 Connect the DVD systems DIGITAL IN jack to the DIGITAL OUT jack on a digital audio device. Before starting operation, press AUX/DI on the remote to selec

45、t “AUX-DI”in order to activate the input source. Recording (digital) 2 Connect the DVD systems DIGITAL OUT (COAXIAL or OPTICAL) jack to the DIGITAL IN jack on a digital recording device (DTS-Digital Theatre System compatible, with a Dolby Digital decoder, for example). Before starting operation, set

46、 the DIGITAL OUTPUT according to the audio connection. (See page 19 “Setting the Sound - Digital Output”). Notes: Always refer to the owners manual of the other equipment for complete connection and use details. Connections DIGIT? AL IN? DIGIT? AL OUT? A? UDIO IN? AU? X? A? UDIO OUT? W? OOFER? LINE

47、OUT? AM? ? ? ? ? ? ? S?S? P?P? E?E? A?A? K?K? E?E? R?R? S?S? FR?SR?CF?L? OUT? OPTICAL?CO?AXIAL? DIGIT? AL? IN? (for exampler) CD Recorder 1 2 Troubleshooting WARNING! Under no circumstances should you try to repair the system yourself, as this will invalidate the warranty. Do not open the system as

48、there is a risk of electric shock. If a fault occurs, first check the points listed below before taking the system for repair. If you are unable to solve a problem by following these hints, consult your dealer or service center. ProblemSolution No power. Check if the AC power cord is properly connec

49、ted. No picture. Select the appropriate video input mode on the TV. Check if the TV is switched on. Check the video connection. Check the system is securely connected. Distorted or poor picture. Sometimes a small amount of picture distortion may appear. This is not a malfunction. Clean the disc. Connect the system to TVs S-video input. The aspect ratio of the screen The aspect ratio is fixed on the DVD disc. cannot be changed even though Depending on the TV, it may not allow to change the aspect ratio.