Philips-MC-320-Service-Manual(1) 电路图 维修手册.pdf

GB CLASS 1 LASER PRODUCT Service ServiceService ServiceService MC-320 TABLE OF CONTENTS Page Location of PCBs Rs=600 Tuner in : FM67.5kHz, AM80%Modulation CD in : -6dB track Tape in : 250nWb/m Output sensitivity Headphone output at 32: 15mW 1dB CASSETTE RECORDER: Number of track: 2 Tracks (Stereo) Tape speed: 4.76 cm/sec 2% Wow and flutter: 48dBA Distortion 250nWb/m: < 5% Channel Difference at overall: 70dBA Distortion at 1kHz: < 0.02% Channel unbalance at 1kHz: 55dB Emphasis: 15/50 S (switched automatically by CD10) THD Noise(1kHz): 70dB Outband Attenuation: 20dB for Frequency 40kHz RadioFans.CN 收音机爱 好者资料库 LF Generator e.g. PM5110 Recorder Use Universal Test Cassette CrO2SBC419 4822 397 30069 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B L R DUT or Universal Test Cassette FeSBC420 4822 397 30071 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B L R DUT CD Use Audio Signal Disc (replaces test disc 3) SBC429 4822 397 30184 Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT S/N and distortion meter e.g. Sound Technology ST1700B Frame aerial e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays cage. Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz). RF Generator e.g. PM5326 Ri=50 Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50 Tuner FM MEASUREMENT SETUP 1-4 1-5 SERVICE AIDS Service Tools: Universal Torx driver holder . 4822 395 91019 Torx bit T10 150mm . 4822 395 50456 Torx driver set T6 - T20. 4822 395 50145 Torx driver T10 extended . 4822 395 50423 Cassette: SBC419 Test cassette CrO2 . 4822 397 30069 SBC420 Test cassette Fe . 4822 397 30071 MTT150 Dolby level 200nWb/M. 4822 397 30271 Compact Disc: SBC426/426A Test disc 5 + 5A . 4822 397 30096 SBC442 Audio Burn-in Test disc 1kHz . 4822 397 30155 SBC429 Audio Signals disc . 4822 397 30184 Dolby Pro-logic Test Disc . 4822 395 10216 ESD Equipment: Anti-static table mat - large 1200 x650 x1.25mm . 4822 466 10953 Anti-static table mat - small 600 x650 x1.25mm. 4822 466 10958 Anti-static wristband . 4822 395 10223 Connector box (1M) . 4822 320 11307 Extension cable (to connect wristband to conn. box). 4822 320 11305 Connecting cable (to connect table mat to conn. box) . 4822 320 11306 Earth cable (to connect product to mat or box) . 4822 320 11308 Complete kit ESD3 (combining all above products) . 4822 320 10671 Wristband tester . 4822 344 13999 HANDLING CHIP COMPONENTS 1-6 GBWARNING All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential. F ATTENTION Tous les IC et beaucoup dautres semi-conducteurs sont sensibles aux dcharges statiques (ESD). Leur longvit pourrait tre considrablement courte par le fait quaucune prcaution nest prise leur manipulation. Lors de rparations, sassurer de bien tre reli au mme potentiel que la masse de lappareil et enfiler le bracelet serti dune rsistance de scurit. Veiller ce que les composants ainsi que les outils que lon utilise soient galement ce potentiel. ESD DWARNUNG Alle ICs und viele andere Halbleiter sind empfindlich gegenber elektrostatischen Entladungen (ESD). Unsorgfltige Behandlung im Reparaturfall kan die Lebensdauer drastisch reduzieren. Veranlassen Sie, dass Sie im Reparaturfall ber ein Pulsarmband mit Widerstand verbunden sind mit dem gleichen Potential wie die Masse des Gertes. Bauteile und Hilfsmittel auch auf dieses gleiche Potential halten. NLWAARSCHUWING Alle ICs en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verminderen. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal. IAVVERTIMENTO Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevit potrebbe essere fortemente ridatta in caso di non osservazione della pi grande cauzione alla loro manipolazione. Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dellapparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale. “Pour votre scurit, ces documents doivent tre utiliss par des spcia- listes agrs, seuls habilits rparer votre appareil en panne”. GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used. NL Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. F Les normes de scurit exigent que lappareil soit remis ltat dorigine et que soient utiliss les pices de rechange identiques celles spcifies. D Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Original zustand des Gerts darf nicht verndert werden; 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 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 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 udsaettelse for strling. PREPARATIONS AND CONTROLS 1-7 Preparations Rear connections The type plate is located at the rear of the system. 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. 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 the system cool down before reusing it (not available for all versions). BAntennas Connection Connect the supplied AM loop antenna and FM antenna to the respective terminals. Adjust the position of the antenna for optimal reception. AM Antenna Position the antenna as far as possible from a TV, VCR or other radiation source. speaker (right) speaker (left) AC power cord AM loop antenna FM wire antenna A B C Preparations FM Antenna For better FM stereo reception, connect an outdoor FM antenna to the FM AERIAL (FM ANTENNA) terminal. CSpeakers Connection Front Speakers Connect the speaker wires to the SPEAKERS terminals, right speaker to RIGHT and left speaker to LEFT, colored (marked) wire to + and black (unmarked) wire to -. Fully insert the stripped portion of the speaker wire into the terminal 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 an impedance lower than the speakers supplied. Please refer to the SPECIFICATIONS section of this manual. Optional connection The optional equipment and connecting cords are not supplied. Refer to the operating instructions of the connected equipment for details. Connecting other equipment to your system Connect the audio left and right OUT terminals of a TV, VCR, Laser Disc player, DVD player or CD Recorder to the AUX terminals. Note: If you are connecting equipment with a mono output (a single audio out terminal), connect it to the AUX left terminal. Alternatively, you can use a “single to double” cinch cable (the output sound still remain mono). Before using the remote control 1Pull out the plastic protective sheet. 2Select the source you wish to control by pressing one of the source select keys on the remote control (for example CD, TUNER). 3Then select the desired function (for example , ,). Replacing battery (lithium CR2025) into the remote control 1Pull out the knob A slightly to the left. 2Pull out the battery compartment B . 3Replace a new battery and fully insert the battery compartment back to the original position. A C R 2 0 2 5 L I T H I U M B plastic protective sheet CAUTION! Batteries contain chemical substances, so they should be disposed off properly. PREPARATIONS AND CONTROLS 1-8 3 0 ! 9 3 * & % 5 4 6 2 # $ 2 3 1 9 6 4 5 8 7 Controls Controls on the system and remote control 1Display shows the status of the system. 2PROG/ REV for CD.programmes tracks and reviews the programme. for TUNER .programmes tuner stations manually or automatically. for TAPE.sets tape reverse modes 3CLOCK SET RDS / for CLOCK .set the clock function. for CD.starts or interrupts CD playback for TAPE.starts the tape playback 4Mode Selection VOLUME (-/+) adjusts the volume level. on the system only - adjusts the hour and minutes for the clock/ timer functions. PRESET/ TIMER SET / for TUNER .selects a preset radio station. for CD.skips to the beginning of a current track/previous/ subsequent track for Timer ( only) to set timer under standby SEARCH/ TUNE / for TUNER .Tune to a station for CD.fast searches back and forward within a track/CD. for TAPE.fast rewind/ wind tape STOP 9 .stops CD playback or erase a CD programme. .stops tape playback/recording. REC.starts recording. 5SOURCE selects the respective sound source for CD/ TUNER/ TAPE /AUX. switches on the system. 6DISPLAY-BAND (on the remote control DISPLAY A/B) for TUNER .change the tuner radio band.(FM/ MW/ LW) for CD.change the CD display mode for TAPE.switches tape direction 7iR SENSOR infrared sensor for remote control. 8ECO POWER indicator 9STANDBY ON2 switches the system to standby. 0PHONES - connects to headphone. !- open/ close the cassette door. CD OPEN open the CD door. #INTERACTIVE SOUND controls: DBB .(Dynamic Bass Boost) enhances the bass. DSC.(Digital Sound Control) selects sound characteristics: CLASSIC/ JAZZ/ ROCK/ OPTIMAL. INCREDIBLE SURR. (IS) .creates a super-enhanced stereo effect. $REPEAT repeats a track/ CD programme/ entire CD. %SHUFFLE plays CD tracks in random order. MUTE interrupts and resumes sound reproduction. &SLEEP activates/deactivates or selects the sleeper time. *TIMER ON / OFF activates/deactivates the timer function. Notes for remote control: First select the source you wish to control by pressing one of the source select keys on the remote control (for example CD, TUNER). Then select the desired function (for example , ,). PREPARATIONS AND CONTROLS 1-9 Important notes for users in the U.K. Mains plug This apparatus is fitted with an approved 13 Amp plug. To 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 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 socket 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 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 sheath 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 innebygde 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 MC-320 Philips risponde alle prescrizioni 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 unsafe operation. 1-10 PREPARATIONS AND CONTROLS Cleaning the Cabinet Use a soft cloth slightly moistened with a mild detergent solution. Do not use a solution containing alcohol, spirits, ammonia or abrasives. Cleaning Discs When a disc