Philips-FWD-792-Service-Manual(1) 电路图 维修手册.pdf

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1、FWD792/55/98 Copyright 2006 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

2、permission of Philips. Published by SL 0623 Service Audio Printed in The Netherlands Subject to modification DVD Mini System Version 1.0 CLASS 1 LASER PRODUCT 3141 785 30880 TABLE OF CONTENTS Page Location of PC Boards .1-2 Speci cations .1-3 Measurement Setup .1-4 Service Aids, Safety Instruction,

3、etc .1-5 to 1-7 Connections fr Reparaturen 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

4、perform a leakage current measurement test 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

5、 laserstrlning nr apparaten r ppnad och sprren 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 uds

6、aettelse for strling. 1 - 7 INFORMATION ABOUT LEAD-FREE SOLDERING Philips CE is producing lead-free sets from 1.1.2005 onwards. IDENTIFICATION: Regardless of special logo (not always indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules: Example S/N: Bottom line of typepla

7、te gives a 14-digit S/N. Digit 5? ? ? 9? ? ? ? ? ? ? ? ? ? ? ? L R VOLTAGE SELECTOR 110V127V 220V240V L R AC MAINS AUDIO OUT Pr/Cr Pb/Cb Y S-VIDEO IN VIDEO IN COMPONENT VIDEO IN CONNECTIONS 1 - 10 ? ? ? ? ? 1? ? 2? ? ? ? ? ? ? ? ? 3? ? 4? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? A ) ( * ? (? ? )? ? ? ? ? ? ? ?

8、 ? ? ? ? ? ? 2; 1111 ? 45? 6 ? 3 ? 4 ? ? ? ?5? 6 ? ? 5O? P ? ? ? ? 6?2; ? ? 7?9 ? 8? ? 9? ? 0? ? !? ? 2 ? #? ? ? $? ? ? %? ? ? ? ? O ? P? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?PM 00?00? ?00?00? ? 1? ? ? 2?SELECT CLOCK OR TIMER ? ? ? O ? P? ? ? ? 3?O ? P? ? 4? 5? 6? ? 5? ? ? ? ? ? ? ? ? ? ? ? 9? ?CANCEL ? ? ?

9、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? FUNCTIONAL OVERVIEW to resume the normal play mode. Make sure the MP3-CD was recorded within 32- 256 kbps bit rate with sampling frequencies at 48 kHz, 44.1 kHz or 32 kHz. If the signal is too weak, adjust the antenna or connect an external antenna for better r

10、eception. Increase the distance between the System and your TV set or VCR. Clean deck parts, see “Maintenance”. Use only NORMAL tape. Apply a piece of adhesive tape over the missing tab space. Remove and reconnect the AC power plug and switch on the system again. Check the speaker connections and lo

11、cation. Point the remote control at the remote control sensor of the unit. Reduce the distance to the player. Remove any possible obstacles. Replace the batteries with new ones. Check that the batteries are loaded correctly. Press DIM again. Set the clock correctly. If recording is in progress, stop

12、 it Power has been interrupted or the power cord has been disconnected. Reset the clock/timer. TROUBLESHOOTING 1- 14 2-12-1 1) System Reset a) Press SYSTEM button on R/C. TV show SETUP b) Select the menu using the and button on R/C c) Go feature setup page to do system reset 2) Region Code Change Sy

13、stem, Region code, Tuner, etc. setting procedure After replacement / repair of the MPEG board, the customer setting and the region code may lost. Changing the Region code will put the player back in the state which it has left the factory. Region Code 1USA 2EU 3AP 4Australia, NZ, Latam 5RUSSIA, INDI

14、A 6CHINA TV System 1NTSC 2PAL 3AUTO Menu/ Audio Subtitle (AS) Language 1English 2English 3English 4English AFS 001LX3000D/LX3500D /MRD200 002MX3600D/MX3800 003LX3700D/LX3750W 005MRD210 006MX3660D 008FWD573/FWD792/FWD798 oem derivative 08 . region code = 1 digit . tv system = 1 digit . as/menu lang =

15、 1 digit . AFS = architechture Feature Set = 3 digits This field is used to define the architecture / features sets for each product. . oem derivative = 2 digit This field is use to define the OEM set. This will affect the background display. Hence in total, reprograming will be done by way of the r

16、emote control. It should run as below :- a) Put the player in stop mode. No disc loaded. b) Press the following key on remote control: For FWD798/98 (A/P) : After the Region Code is changed it is necessary to reset the system so that the new Region Code will be fully effective. All customer setting

17、will be lost. On top of the maximum number of times allowed for changing the region code is changed to 25. When the counter reach 25, you will not be able to further change the code until you reset the timer by the Region Code timer reset procedure 3) Region code change timer reset Press below key t

18、o reset the timer : a) In DISC source, stop mode and no disc in tray. b) Press R/C Play -159-PLAY to reset timer to 25 4) Tuner area change a) Press the OPEN/CLOSE button to open the sets door b) Press 1 5 9 button by using R/C. c) TV Show TUNER AREA d) Select the tuner area you want by using the an

19、d button on R/C, then press OK to confirm. TV show TUNER AREA CHANGED If you didnt press it in five seconds, the system will remain original status. 87.5M 108M 50K Note :- Please refer to the above different tuner area. 5. Video Out Change a) Press SYSTEM on R/C button b) Select the menu using the a

20、nd button on R/C c) Go picture setup page select Video out item. 6. Password Change a) Press SYSTEM on R/C button b) Select the menu using the and button on R/C c) Go feature setup page select PASSWORD. TV show ENTER CODE.Press 4 times of STOP button on R/C. d) Select PARENTAL 8 ADULT on TV. e) Ente

21、r PASSWORD to 1234. 1234 is a default password supplied. 7. Checking on the Software version a) Open the CD door. b) Press 123 and OK on the remote control. c) TV will show the version on screen. 8. Upgrading new software a) Open the door, then insert the CD-R program disc. b) Close the door. c) TV

22、will show:- . disc loading . bank30.rom . writing about 6 seconds. . Done The latest upgraded is in version VER*. CAUTION ! This information is confidencial and may not be distributed. Only a qualified service person should reprogram the Region Code. AREA BAND FREQUENCY (Hz) STEP(Hz) 531K1602K9K 530

23、K1710K 10K FM A/P (/98) MW 2-22-2 2-32-3 3-13-1 DISMANTLING INSTRUCTIONS Dismantling the DVD ModuleDismantling of the Cover Front Display 1) Loosen the 4 screws at top cover , 2 screws at slide Cover and 4 screws at back panel as Figure 1 & 2. 1) Remove the Volume knobs as stated in Dismantling the

24、Cover Front Display in Figure 7. 2) Loosen 2 screws at the bottom of front panel. 3) Remove the Cover Tray as shown in figure 4. Dismantling the Main board 1) Release 7 screws E to free the Main board from the back panel assembly as shown in Figure 8. 2) Loosen 1 screw F at the side of the set as sh

25、own in Figure 9. 3) Release 2 screws G on the heat sink as shown in Figure 10. 2) Push the gear slowly towards the front as shown in figure 3 until the CDC tray starts to move out of the Front Cabinet. The CDC tray is now disengaged and can be pulled out completely. Figure 1 A Figure 2 Figure 3 4) L

26、oosen the 2 screws at front of DVD loader as Figure 5. 5) Loosen the 2 screws at back of DVD loader as Figure 6. Figure 5 Figure 6 ? Figure 4 Put out Figure 7 E Figure 8 Figure 9 F Figure 10 G PULL OUTPULL OUT 3-23-2 Dismantling of the Control Board & Cassette Module 1) Loosen 19 screws H to remove

27、the control board figure 11. Dismantling of the Power Board 1) Loosen 4 screws J to remove the Power Board figure 13. 2) Loosen 4 screws I to remove the Cassette Module figure 12. Figure 12 I Figure 13 J H Service position AService position B Service position C Note: After re-assembly, it is very im

28、portant to ensure the wires are properly inserted into their respective sockets and routed not to touch or obstruct any moving parts. Service positions 3-33-3 4-14-1 BLOCK DIAGRAM Tuner system Control system 4-24-2 WIRING DIAGRAM CN903 RB203 TAPE DECK FOR FWD798 MODEL ONLY SUBWOOFER DVD LOADER POWER

29、 PCB CONTROL PCB TUNER PCB MAIN PCB CONTROL BOARD TABLE OF CONTENTS FTD Display Pin Assignment.5-1 Pin Connection .5-1 Circuit Diagram .5-2 PCB Layout (Key / sw / motor PCB) .5-3 PCB Layout Top View .5-4 PCB Layout Bottom View .5-5 Electrical Parts List & Voltages .5-6 5-1 FTD DISPLAY PIN ASSIGNMENT

30、 PIN CONNECTION 5-1 # Note # 1. F :Filament 2. G :Grid3. P :Anode4. NP :No Pin5. Nx :No extended F F1 F2 F1 F2 1 20 2 21 3 22 4 23 5 24 6 25 7 26 8 27 9 28 10 29 11 30 12 31 13 32 14 33 15 34 16 35 17 36 18 37 19 38 F1 F2 NP NP 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G12G NX NX P16 P15 P14 P13 P12 P11P10 P

31、9 P8 P7 P6 P5 P4 P3 P2 P1 1 F2 F1 F2 1 20 2 21 3 22 4 23 5 24 6 25 7 26 8 27 9 28 10 29 11 30 12 31 13 32 14 33 15 34 16 35 17 36 18 37 19 38 F1 F2 NP NP 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G12G NX NX P16 P15 P14 P13 P12 P11P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 PIN NO. CONNECTION PIN NO. CONNECTION 1G2G3G4G5G

32、6G7G8G9G10G11G12G1G2G3G4G5G6G7G8G9G10G11G12G P1 P2 P3 P4 P5 P6 P7 P8 P1 P2 P3 P4 P5 P6 P7 P8 S1 T S1 T dddddddd nnnnnnnn rrrrrrrr eeeeeeee cccccccc gggggggg mmmmmmmm ffffffff bbbbbbbb kkkkkkkk j,p j,p j,p j,p j,p j,pj,pj,p hhhhhhhh aaaaaaaa S8 W dddddddd nnnnnnnn rrrrrrrr eeeeeeee cccccccc gggggggg

33、mmmmmmmm ffffffff bbbbbbbb kkkkkkkk j,p j,p j,p j,p j,p j,pj,pj,p hhhhhhhh aaaaaaaa S8 WP9 P10 P11 P12 P13 P14 P15 P16 P9 P10 P11 P12 P13 P14 P15 P16 T5 T1 T5 T1 S2S2 S7S7 S5 Dp ColCol S6 S5 Dp ColCol S6 S4S4 T3 T4 T2 T3 T4 T2 S3S3 2G1G 12G 2G1G 12G 11G11G 3G4G5G6G7G8G9G10G 12G T 3G4G5G6G7G8G9G10G 1

34、2G T 7.0 3.0 3.6 0.35 7.0 3.0 3.6 0.35 (3G10G)(3G10G) a h r j p k n b c d e f g m a h r j p k n b c d e f g m 2G1G W 2G1G W S1 S2 S3 S4S5 S6 S7 S8 T5 T4 T1 T2 T3 S1 S2 S3 S4S5 S6 S7 S8 T5 T4 T1 T2 T3 CIRCUIT DIAGRAM: CONTROL PCB 5-25-2 C2501 A4 C2502 A4 C2503 A4 C2504 A4 C2505 A4 C2506 B4 C2507 B4 C2508 B4 C2509 B4 C2510 B4 C2511 B4 C2512 C4 C2513 C4 C2514 C4 C2515 C4 C2518 C5 C2519 C5 C2520 C5 C2521 C5 C2522 C5 C2523 C6 C2524 B6 C2525 B7 C2526