Philips-FWD-790-Service-Manual(1) 电路图 维修手册.pdf

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1、CLASS 1 LASER PRODUCT Service ServiceService ServiceService FWD790/21M 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 means, electronic,

2、 mechanical, photocopying, or otherwise without the prior permission of Philips. Published by SL- ET0504 Service Audio Printed in The Netherlands Subject to modification. GB 3141 785 30150 Mini System TABLE OF CONTENTS Page Location of PC Boards.1- 2 Versions Variation fr Reparaturen sind Original-

3、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 test from all expos

4、ed 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 sprren r urkoppla

5、d. 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. PREPARATIONS AND CONTROLS Preparati

6、ons Notes: The clock will be cancelled when the power cord is disconnected or if a power failure occurs. During clock setting, if no button is pressed within 10 seconds, the system will exit the setting mode and go back to its previous status. Step 3: Setting the TV set IMPORTANT! Make sure you have

7、 completed all the necessary connections. (See Connections Connecting TV set) 1Press DISC (DISC 123) on the front panel (or press DISC 1/2/3 on the remote control). 2Turn on the TV set and set to the correct Video- In channel. You should see the blue Philips DVD background screen on the TV set. You

8、may go to channel 1 on your TV set, then press the channel down button repeatedly until you see the Video In channel. Or, you can use the TV remote control to select different video modes. Or, set TV to channel 3 or 4 if you are using an RF modulator. Selecting the color system that matches your TV

9、set This DVD Mini Hi-Fi System is compatible with both NTSC and PAL. For the playback of a DVD disc on this DVD Mini Hi-Fi System, the color systems of the DVD, TV set and DVD Mini Hi-Fi System should match. 1In disc mode, stop playback and press SYSTEM MENU. 2Select icon and press 4. 3Press 1 / / 5

10、 / 4 keys on the remote control to toggle through the functions and select your preferred option. Move to and press . Move to “TV System” and press . AUTO Select this if the connected TV set is compatible with both NTSC and PAL (multi system). The output format will be consistent with the video sign

11、al of the disc. NTSC Select this if the connected TV set is NTSC system. It will change the video signal of a PAL video disc and output to NTSC system. PAL Select this if the connected TV set is PAL system. It will change the video signal of an NTSC disc and output to PAL format. 4Select an item and

12、 press OK. To remove the menu Press SYSTEM MENU. PBC TV SHAPE TV SYSTEM SCR SAVER SET TO NTSC AUTO NTSC PAL 4 2 ,3 1 1- 7 1 2 3 4 5 6 7 8 9 0 ! # ) * ( on the front panel to search and store all available radio stations or press 9 to exit (See page 37, Tuner Operations- Presetting radio stations). I

13、f your system is equipped with a Voltage Selector, set the VOLTAGE SELECTOR to the local power line voltage. FM antenna MW antenna fix the claw into the slot 8 VOLTAGE SELECTOR 110V127V 220V240V AC MAINS AUDIO OUT Pr/Cr Pb/Cb Y S-VIDEO IN VIDEO IN COMPONENT VIDEO IN 8 FUNCTIONAL OVERVIEW 1- 11 Funct

14、ional Overview Controls on the system 1ECO POWER/ STANDBY ON to switch the system on, to Eco Power or Standby mode. 2DISPLAY SCREEN to view the current status of the system. 3SOURCE to select the following: DISC (DISC 123) to select disc tray 1, 2 or 3 TUNER (BAND) to select waveband: FM or MW. TAPE

15、 (TAPE 1-2) to select tape deck 1 or 2. AUXGAME to select a connected external source: TV/CDR, AUX (auxiliary) or Gameport mode. 4PREV / PRESET / NEXT O P (TITLE / +) for DISC .to select previous/next title, chapter or track during playback. for TUNER .to select a preset radio station. for CLOCK .to

16、 set the hour. 5SEARCHTUNING / (ALBUM / +) for DISC .to search backward/forward. to select previous/next album in MP3/WMA stop mode (with MENU ON). for TAPE.to rewind or fast forward. for TUNER .to tune to a lower or higher radio frequency. for CLOCK .to set the minute. 6MIC VOL./ MIC IN to adjust t

17、he mixing level for karaoke or microphone recording. to connect microphone jack. 7 38 (PLAY/PAUSE) for DISC .to start or interrupt playback. for TAPE.to start playback. for PLUG to connect headphones. )VOLUME to increase or decrease the volume. SENSOR point the remote control towards this sensor. IN

18、TERACTIVE VU METER to show the VU (volume unit) meter in music or volume mode depending on the display mode selected. DISC TRAYS OPENCLOSE to open or close the disc tray. DISC1/ DISC2/ DISC3 to select a disc tray for playback. DISC CHANGE to change disc(s). Functional Overview Remote control Notes:

19、First, select the source you wish to control by pressing one of the source select keys on the remote control (DISC or TUNER, for example). Then select the desired function (, O or P for example). 1SOURCE to select the relevant active mode: DISC1/2/3, TUNER, TAPE1/2 or AUX/GAME. TUNER: toggles betwee

20、n FM and MW band. AUX/GAME: toggles between AUX and GAMEPORT mode. 2DISC MENU (disc mode only) to enter or exit the disc contents menu. 3SYSTEM MENU (disc mode only) to enter or exit the system menu bar. 1 # $ % 4 5 to start or interrupt disc playback. to resume playback from last stop point. 7STOP

21、9 to stop playing the disc. 8REPEAT to select variations of continuous playback. 9REPEAT A-B to repeat a specific section on a disc. 0SUBTITLE to select desired subtitle. !AUDIO to select the audio channel. POWER 2 to switch to eco power or standby mode. #Numeric Keypad (0-9) to enter a track/title

22、number of the disc. to enter a number of preset radio stations. $VOL +/- adjust the volume level. adjust key control/ ECHO level in karaoke mode. adjust speakers level in speaker setting mode. %OK to exit or confirm the selection. GOTO to go direct to desired title, chapter or time. to resume the no

23、rmal 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 reception. Increase the distance between the System and your TV set or VCR.

24、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 location. Point the remote control at the remote control sensor of the unit.

25、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 it Power has been interrupted or the power cord has been disconnected. Res

26、et the clock/timer. TROUBLESHOOTING 1- 13 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 2-1 System, Region code, Tuner, etc. setting procedure After replacement / repair of

27、 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, INDIA 6CHINA TV System 1NTSC 2PAL 3AUTO Menu/ Audio Subtitle (AS) Language 1Englis

28、h 2English 3English 4English AFS 001LX3000D/LX3500D /MRD200 002MX3600D/MX3800 003LX3700D/LX3750W 005MRD210 006MX3660D 008FW-D550/FWD570 oem derivative 08 . region code = 1 digit . tv system = 1 digit . as/menu lang = 1 digit . AFS = architechture Feature Set = 3 digits This field is used to define t

29、he 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 remote control. It should run as below :- a) Put the player in stop mode. No disc loa

30、ded. b) Press the following key on remote control: For FW-D550 /21M (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 will be lost. On top of the maximum number of times allowed for changing the regi

31、on 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 to reset the timer : a) In DISC source, stop mode and no disc in tray. b) Press R/

32、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 and button on R/C, then press OK to confirm. TV show TUNER AREA CHANGED If you didn

33、t 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 and button on R/C c) Go picture setup page select Video out item. 6. Password Chan

34、ge 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) Enter PASSWORD to 1234. 1234 is a default password supplied. 7. Checking on the Softw

35、are 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 will show:- . disc loading . bank30.rom . writing about 6 seconds. . Done The lat

36、est upgraded is in version VER*. 2-1 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 530K1710K 10K FM A/P (21M) MW 2-2 REPAIR INSTRUCTIONS 2-2 2-3 REPAIR INSTRUCTION

37、S 2-3 3-13-1 DISMANTLING INSTRUCTIONS Dismantling of the Cassette Cover Dismantling the 3CDC Module 4) Remove the Cover Tray as shown in figure 4. 5) Loosen 4 screws A to remove the CDC Module (pos 1105) as shown in figure 3. Dismantling of the Cover Front Display and Cover Front Ornamental (pos 130

38、) Notes:There is nothing are sandwiched between the Front Cabinet (pos 101) and Cover Front Display (pos 129) but it has to be removed in order to reach the catches for the Cover Front Ornamental (pos 130) . 1) Loosen the 4 screws, slide Cover top (pos 255) towards the rear and remove it upwards. 3)

39、 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. 1) Remove the Volume knobs as stated in Dismantling the Cover Front Display in Figure 5. Figure 1 Figure 2 Figure

40、3 Figure 4 Figure 5 Pull out Press and hold it between the tape deck and the cassette door A A Turn the gear towards the front till the CDC tray starts to open Pull out 3-23-2 Dismantling of the Key Board , VFD Board,Tape Board and Cassette module 1) Loosen 5 screws E to remove the Bracket CDC Right

41、 as shown in figure 7. 2) Loosen 5 screws F to remove the KEY board figure 7. Dismantling of the Power Board 1) Loosen 4 screws L to remove the Power Board figure 12. Detaching the Main board and Front Cabinet Assembly from the Bottom/Rear assembly 1) Release 2 catches B to free the Main board from

42、the Front Cabinet Assembly as shown in figure 6. 2) Loosen 2 screws D at the bottom of the Front Cabinet on both sides of the set. 3) Release 2 catches C on both sides of the Front Cabinet and pull the Front Cabinet assembly out of the Bottom plate. Dismantling of the Rear Panel 1) Loosen 8 screws J

43、 to remove the Rear Panel figure 11. 3) Release 2 catches K on both sides of the Rear Panel with the help of a minus screw driver and pull out the Rear Panel figure 11. B D C B Pull out main board 3) Loosen 9 screws H to remove the VFD Board figure 9. 4) Loosen 1 screws G to remove the Tape Board fi

44、gure 8. 5) Loosen 8 screws I to remove the Cassette Module figure 10. Figure 7 Figure 6 Figure 9 Figure 10 Figure11 Figure 12 E E F H H I J J L Service position AService position B Service position C Note: After re-assembly, it is very important to ensure the wires are properly inserted into their r

45、espective sockets and routed not to touch or obstruct any moving parts. Service positions 3-33-3 4-1 SET BLOCK DIAGRAM 4-1 4-2 SET WIRING DIAGRAM 4-2 KEY / VIDEO / SENSOR / PHONE / VOL / VU BOARD TABLE OF CONTENTS FTD Display Pin Assignment.5-1 FTD Display Pin Connection .5-1 Internal IC Diagram & P

46、in Description .5-2 Circuit Diagram .5-3 PCB Layout Top View .5-4 PCB Layout Bottom View .5-5 Electrical Parts List .5-7 5-1 FTD DISPLAY PIN ASSIGNMENT PIN CONNECTION # Note # 1. Fn:Filament pin 2. nG : Grid pin 3. Pn : Anode pin 4. NP : No Pin 5. NC : No Connection pin 5-1 ? ? ? ? ? ? ? ? ? ? ? ? ?

47、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? INTERNAL BLOCK DIAGRAM VFD CONTROLLER - IC TP6311QH PIN DESCRIPTION VFD CONTROLLER - IC TP6311QH Serial Data interface LED Driver OSC Timming Generator Segment Driver/ Grid Driver/ Key Scan Output Dimming Circuit Grid Driver Control Genaral Input Register Key Matrix Memory Genar