Philips-FWM-15-Service-Manual(1) 电路图 维修手册.pdf

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1、GB CLASS 1 LASER PRODUCT COMPACT DIGITAL AUDIO Service Manual Service ServiceService ServiceService FWM15/21/22/25 TABLE OF CONTENTS Page Location of PCBs fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali

2、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 exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 L

3、ASER 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 urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle las

4、eristeilylle. l katso steeseen! DK Advarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. 2 - 1 Preparations Rear connections The type plate is located at the rear of the system. For users in the U.K.: please follow the instructions on page

5、2. APower Before connecting the AC power cord to the wall outlet, ensure that all other connections have been made. WARNING! For optimal performance, use only the original power cable. Never make or change any connections with the power switched on. BAntennas Connection Connect the supplied AM loop

6、antenna and FM antenna to the respective terminals. Adjust the position of the antenna for optimal reception. MW Antenna Fix the claw to the slot Position the antenna as far as possible from a TV, VCR or other radiation source. Preparations FM Antenna For better FM stereo reception, connect an outdo

7、or FM antenna to the FM ANTENNA terminal. CSpeakers Connection Front Speakers Connect the speaker wires to the SPEAKERS terminals, right speaker to R and left speaker to L, coloured (marked) wire to + and black (unmarked) wire to -. Fully insert the stripped portion of the speaker wire into the term

8、inal as shown. Notes: For optimal sound performance, use the supplied speakers. Do not connect more than one speaker to any one pair of +/- speaker terminals. Do not connect speakers with impedance lower than the speakers supplied. Please refer to the SPECIFICATIONS section of this manual. Inserting

9、 batteries into the remote control Insert two batteries type R03 or AAA (not supplied) into the remote control with the correct polarity as indicated by the + and - symbols inside the battery compartment. CAUTION! Remove batteries if they are exhausted or will not be used for a long time. Do not use

10、 old and new or different types of batteries in combination. Batteries contain chemical substances, so they should be disposed off properly. 2 1 PREPARATIONS AND CONTROLS 2 - 2 4 ( 5 9 2 # ) % 8 & 2 1 3 6 5 7 0! 9 8 4 $ % & * # CD1CD2CD3 PREPARATIONS AND CONTROLS Controls Controls on the system and

11、remote control 1STANDBY ON y to switch the system on or to standby mode. 2TUNER (BAND) to select waveband : FM or MW. TAPE (TAPE 12) to select tape mode. 3ECO POWER to switch the system on or to Eco Power standby mode. 4CD 1/ CD 2/ CD 3 (CD 1/2/3) to select disc tray 1, 2 or 3. 5DSC (DIGITAL SOUND C

12、ONTROL) to select the desired sound effect : JAZZ, ROCK, TECHNO or OPTIMAL. 6CD OPEN/CLOSE to open or close the disc tray. 7DISC CHANGE to change disc(s). 8DBB (DYNAMIC BASS BOOST) to select the desired bass boost level. 9PROGRAM for CD .to programme disc tracks. for Tuner .to programme preset radio

13、 stations. for Clock .to select 12- or 24-hour clock mode. 0Tape deck 1 operation .to start recording. .to start playback. / .to rewind or fast forward. 70.to stop playback/recording or to open the tape door. .to interrupt playback or recording. !Tape deck 2 operation .to start playback. / .to rewin

14、d or fast forward. 70 .to stop playback or to open the tape door. .to interrupt playback. CLOCKTIMER to view the clock, set the clock or set the timer. #DIM to select different brightness for the display screen : DIM 1, DIM 2, DIM 3 or DIM OFF. $n to connect headphones. %MASTER VOLUME (VOL +/-) to i

15、ncrease or decrease the volume. Mode Selection PLAYPAUSE for CD/MP3-CDto start or interrupt playback. for Plug & Play(on the system only) to initiate and start plug & play mode. SEARCHTUNING (ALBUM) SEARCHTUNING (ALBUM) for MP3-CD .to select previous/next album. for CD .to search backward/forward. f

16、or Tuner .to tune to a lower or higher radio frequency. for Clock .(on the system only) to set the hour. STOPCLEAR / DEMO STOP 9 for CD/MP3-CDto stop playback or to clear a programme. for Tuner .(on the system only) to stop programming or to erase a selected preset. for Demo.(on the system only) to

17、activate/ deactivate the demonstration. for Clock .(on the system only) to exit clock setting or cancel timer. for Plug & Play(on the system only) to exit plug & play mode. PREPARATIONS AND CONTROLS 2 - 3 PREV / PRESET 4 (TITLE) NEXT / PRESET3 (TITLE) for MP3-CD .to select previous/next title. for C

18、D .to skip to the beginning of the, previous, or next track. for Tuner .to select a preset radio station. for Clock .(on the system only) to set the minute. &Display screen to view the current status of the system. *Disc tray (REPEAT to playback track(s)/disc(s)/programme repeatedly. )SHUFFLE to pla

19、yback all available tracks/programme of the current disc in random order. MUTE to interrupt or resume sound reproduction. SLEEP to activate/deactivate or set the sleep timer. B to switch the system to standby mode. to switch the system to Eco Power standby mode. Notes for remote control: First, sele

20、ct the source you wish to control by pressing one of the source select keys on the remote control (CD 1/2/3 or TUNER, for example). Then select the desired function (, , , for example). Controls Important notes for users in the U.K. Mains plug This apparatus is fitted with an approved 13 Amp plug. T

21、o change a fuse in this type of plug proceed as follows: 1Remove fuse cover and fuse. 2Fix new fuse which should be a BS1362 5 Amp, A.S.T.A. or BSI approved type. 3Refit the fuse cover. If the fitted plug is not suitable for your socket outlets, it should be cut off and an appropriate plug fitted in

22、 its place. If the mains plug contains a fuse, this should have a value of 5 Amp. If a plug without a fuse is used, the fuse at the distribution board should not be greater than 5 Amp. Note: The severed plug must be disposed of to avoid a possible shock hazard should it be inserted into a 13 Amp soc

23、ket elsewhere. How to connect a plug The wires in the mains lead are coloured with the following code: blue = neutral (N), brown = live (L). As these colours may not correspond with the colour markings identifying the terminals in your plug, proceed as follows: Connect the blue wire to the terminal

24、marked N or coloured black. Connect the brown wire to the terminal marked L or coloured red. Do not connect either wire to the earth terminal in the plug, marked E (or e) or coloured green (or green and yellow). Before replacing the plug cover, make certain that the cord grip is clamped over the she

25、ath of the lead - not simply over the two wires. Copyright in the U.K. Recording and playback of material may require consent. See Copyright Act 1956 and The Performers Protection Acts 1958 to 1972. Norge Typeskilt finnes p apparatens underside. Observer: Nettbryteren er sekundert innkoplet. Den inn

26、ebygde netdelen er derfor ikke frakoplet nettet s lenge apparatet er tilsluttet nettkontakten. For redusere faren for brann eller elektrisk stt, skal apparatet ikke utsettes for regn eller fuktighet. Italia DICHIARAZIONE DI CONFORMITA Si dichiara che lapparecchio FWM15 Philips risponde alle prescriz

27、ioni dellart. 2 comma 1 del D.M. 28 Agosto 1995 n. 548. Fatto a Eindhoven Philips Consumer Electronics Philips, Glaslaan 2 5616 JB Eindhoven, The Netherlands CAUTION Use of controls or adjustments or performance of procedures other than herein may result in hazardous radiation exposure or other unsa

28、fe operation. PREPARATIONS AND CONTROLS 2 - 4 Radio reception is poor. Recording or playback cannot be made. The system does not react when buttons are pressed. Sound cannot be heard or is of poor quality. The left and right sound outputs are reversed. The remote control does not function properly.

29、The timer is not working. Not all lighted buttons are showing light. The Clock/Timer setting is erased. The system displays features automatically. If the signal is too weak, adjust the antenna or connect an external antenna for better reception. Increase the distance between the Mini HiFi System an

30、d your TV or VCR. Clean deck parts, see “Maintenance”. Use only NORMAL (IEC I) 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. Adjust the volume. Disconnect the headphones. Check that the speakers are connected c

31、orrectly. Check if the stripped speaker wire is clamped. Check the speaker connections and location. Select the source (CD 1/2/3 or TUNER, for example) before pressing the function button (,). Reduce the distance between the remote control and the system. Insert the batteries with their polarities (

32、+/- signs) aligned as indicated. Replace the batteries. Point the remote control directly towards the IR sensor. Set the clock correctly. Press and hold CLOCKTIMER to switch on the timer. If recording or tape dubbing is in progress, stop recording. Press DIM to select DIM OFF display mode. Power has

33、 been interrupted or the power cord has been disconnected. Reset the clock/timer. Press and hold on the system to switch off the demonstration. ProblemSolution Maintenance Cleaning the Cabinet Use a soft cloth slightly moistened with a mild detergent solution. Do not use a solution containing alcoho

34、l, spirits, ammonia or abrasives. Cleaning Discs When a disc becomes dirty, clean it with a cleaning cloth. Wipe the disc from the centre out. Do not wipe in circular motion. Do not use solvents such as benzene, thinner, commercially available cleaners, or antistatic spray intended for analogue reco

35、rds. Cleaning the disc lens After prolonged use, dirt or dust may accumulate at the disc lens. To ensure good playback quality, clean the disc lens with Philips CD Lens Cleaner or any commercially available cleaner. Follow the instructions supplied with cleaner. Cleaning the Heads and the Tape Paths

36、 To ensure good recording and playback quality, clean the heads A and B, the capstan(s) C, and pressure roller(s) D after every 50 hours of tape operation. Use a cotton swab slightly moistened with cleaning fluid or alcohol. You also can clean the heads by playing a cleaning tape once. Demagnetising

37、 the heads Use a demagnetising tape available at your dealer. WARNING Under no circumstances should you try to repair the system yourself, as this will invalidate the warranty. Do not open the system as there is a risk of electric shock. If a fault occurs, first check the points listed below before

38、taking the system for repair. If you are unable to remedy a problem by following these hints, consult your dealer or Philips for help. “NO DISC” is displayed. “DISC NOT FINALIZED” is displayed. Insert a disc. Check if the disc is inserted upside down. Wait until the moisture condensation at the lens

39、 has cleared. Replace or clean the disc, see “Maintenance”. Use a finalised CD-RW or CD-R. ProblemSolution Troubleshooting MAINTENCE AND TROUBLESHOOTING 3-1 3-1 DISMANTLING INSTRUCTIONS Dismantling of the Lens Cassette 1) Uncatch 4 catches along the edge of the Cassette door (pos 5) as shown in figu

40、re 1 and 2 to remove the Lens cassette (pos 2). Figure 2: Left Cassette door Figure 1 1) Loosen the 4 screws, slide Cover top (pos 30) towards the rear and remove it upwards. 2) Loosen 3 screws slide the Panel right (pos 26) towards the rear and remove it outwards. Do likewise for the Panel left (po

41、s 27). 3) Push the gear slowly towards the front as shown in figure Dismantling the 3CDC Module 3 until the CDC tray starts to move out of the Front Cabinet (pos 8). The CDC tray is now disengage and can be pulled out completely. 4) Remove the Cover Tray (pos 29) as shown in figure 4. 5) Loosen 4 sc

42、rews A to remove the CDC Module (pos 28) as shown in figure 3. A A A Turn the Gear towards the Front till the CDC Tray starts to open Figure 3 Figure 4 C1 Press Inwards Pull Rear Panel out 1 2 Figure 5 Dismantling of the Panel Rear 1) Loosen 6 screws C on the Panel rear (pos 24). 2) Press the 2 catc

43、hes C1 inwards and dismantle the Panel rear by pulling it towards the rear. 3-2 3-2 Service pos A Service pos B Note: After re-assembly, it is very important to ensure the wires from the Tape mechanism are routed properly to ensure that they do not touch/obstruct all moving parts. Dismantling of the

44、 Front Panel and Bottom Panel assembly Figure 6 Figure 7 Figure 8 1) Remove 8 screws D mounting the Front board. 2) Remove 1 screw E supporting the bracket, Combi board (pos 33) to the Panel front (pos 8). 3) Remove 1 screw F (see figure 5) mounting the Mains transformer body to the Panel Bottom (po

45、s 25). Note: Care must be taken not to damage the board because of the heavy Mains transformer. 4) The Front and Combi boards together with the Mains transformer can now be remove. 5) Loosen 6 screws G and eject both cassette doors to remove the Tape mechanism (pos 12). Note: During re-assembly of t

46、he Tape mechanism and Front board care must be taken to ensure the wires are properly dressed and not touch- ing any moving parts on the Tape mechanism. 4 - 14 - 1 SET BLOCK DIAGRAM 6 - 16 - 1 MAIN BOARDS TABLE OF CONTENTS FTD Display pin connection . 6-1 Tape Adjustment & Mesurement . 6-2 Tuner Adj

47、ustment Table . 6-2 Layout Diagram(casse,amplifier,mains part-/21). 6-3 Layout Diagram(casse,amplifier,mains part-/22). 6-5 Main Circuit. 6-7 Tape Part Circuit . 6-8 Front Part Ci rcuit . 6-9 Layout Diagram(front part). . 6-10 Circuit Diagram(tuner part -/21). 6-12 Circuit Diagram(tuner part -/22). 6-15 TDA7468 & TMP87CN71 Internal Block dia