Philips mcd 280 service manual

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1 - 1 HANDLING CHIP COMPONENTS © WARNING All ICs and many other semiconductors 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 wristband with resistance. Keep components and tools at this potential. f ATTENTION Tous les IC et beaucoup d«autres semi-conducteurs sont sensibles aux dcharges statiques (ESD). Leur longvite pourrait tre considrablement courte par le fait qu«aucune prcaution nst prise  leur manipulation. Lors de rparations, s«assurer de bien tre reli au mme potentiel que la masse de l«appareil et enfileer le bracelet serti d«une rsistance de scurit. Veiller  ce que les composants ainsi que les outils que l«on utilise soient galement  ce potentiel. d WARNUNG Alle ICs und viele andere Halbleiter sind empfindlich gegenber elektrostatischen Entladungen (ESD). Unsorgfltige Behandlung im Reparaturfall kann die Lebensdauer drastisch reduzieren. Sorgen Sie dafr, da§ Sie im Reparaturfall ber ein Puls- armband mit Widerstand mit dem Massepotential des Gertes verbunden sind. Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem Potential. ñ WAARSCHUWING Alle IC«s en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen vermindern. 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. i AVVERTIMENTO 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 riparationi occorre quindi essere collegato allo stesso potenziale che quello della massa delpparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale. ©Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used. Safety components are marked by the symbol iLe norme di sicurezza estigono che l«apparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambiago identici a quelli specificati. Componenty di sicurezza sono marcati con ñVeiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkeliijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. De Veiligheidsonderdelen zijn aangeduid met het symbool s Varning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. -ˆ‚ Advarsel ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. ß Varoitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen ! f"Pour votre scurite, ces documents doivent tre utiliss par des spcialistes agrs, seuls habilits  rparer votre appareil en panne". ESD SAFETY dBei jeder Reparatur sind die geltenden Sicherheitsvor- schriften zu beachten. Der Originalzustand des Gertes darf nicht verndert werden. Fr Reparaturen sind Original- ersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol markiert. fLes normes de scurit exigent que lappareil soit remis  ltat dorigine et que soient utilises les pices de rechange identiques  celles spcifies. Les composants de scurit sont marqus CLASS 1 LASER PRODUCT © DANGER: Invisible laser radiation when open. ©After servicing and before returning the set to customer perform a leakage current measurement test from all exposed metal parts to earth ground, to assure no shock hazard exists. The leakage current must not exceed 0.5mA. AVOID DIRECT EXPOSURE TO BEAM. HANDLING CHIP COMPONENTS

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2 - 1 TECHNICAL SPECIFICATIONS GENERAL Mains voltage -/21M : 120 / 230 V -/30 -/30: :240 V Mains frequency 50 Hz -/21M :50 / 60 Hz Battery remote:3 V (R6 x 2) Power consumption normal : 30 W Standby :< 2 W Dimension (W x H x D) :140 x 220 x 265 mm Weight :3.25 Kg AMPLIFIER Output power mains : 2 x 10 W Speaker impedance :2 x 8 ohm Frequency response :63 Hz - 16 kHz (±3dB) TUNER - FM SECTION Tuning range :87.5 - 108 MHz IF frequency :10.7 MHz ± 0.02 MHz Sensitivity :< 22 dBf at 26dB Selectivity 300kHz : > 33 dB IF Rejection :> 60 dB Image Rejection :> 20 dB Channel separation 1kHz : 30 dB TUNER - AM SECTION Tuning range :531 - 1602 kHz 530 - 1700 kHz for /21 IF frequency 450 kHz ± 1 kHz Sensitivity :-‰¤ 3.25 mV/m at 26dB : Selectivity S9/300kHz :> 20 dB : IF rejection :> 24 dB Spurious rejection :< 28 dB : Image rejection :< 28 dB AUDIO CASSETTE RECORDER Frequency response -8dB : 80 - 12.5 kHz Wow & flutter : < 0.4 % (DIN) Tape speed : 4.76 cm/s Channel difference at PB : 0 dB P/B S/N ( A wght.) R/P S/N (A wght.):55 dB :48 dB COMPACT DISC Frequency response : 20 Hz -“ 20 kHz S/N ratio (A-wght.) : 70 dBA THD+N 1kHz :0.5 % Channel Separation 1kHz : 40 dB (Lim.30dB) Channel unbalance : < ±2dB VIDEO PERFORMANCE Amplitude output : 1.0 Vpp (+10/-10%) S/N luminance :-‰¥ 48 dB Video bandwidth : 6 MHz Chroma/Luminance delay : -‰¤ 80ns SERVICE TOOLS Audio signal disc SBC 429.......................................................................4822 397 30184 Playability test disc SBC 444...................................................................4822 397 30245 Test disc 5(disc without errors ) + Test disc 5A(disc with dropout errors, black spots and fingerprints) SBC 426/426A.....................................................................4822 397 30096 Burn in test disc (65 min. 1kHz signal at -30 dB level without pause) .....4822 397 30155 anti-static table mat large 1200x650x1.25mm 4822 466 10953 small 600x650x1.25m 4822 466 10958 anti-static wristband4822 395 10223 connection box (3 press stud connections, 1M-„¦) 4822 320 11307 extendible cable (2m, 2M-„¦, to connect wristband to connection box) 4822 320 11305 connecting cable (3m, 2M-„¦, to connect table mat to connection box) 4822 320 11306 earth cable (1M-„¦, to connect any product to mat or to connection box) 4822 320 11308 KIT ESD3 (combining all 6 prior products - small table mat) 4822 310 10671 wristband tester4822 344 13999 AVAILABLE ESD PROTECTION EQUIPMENT