Philips dc 912 service manual

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AMPLIFIER Output power ....................................... 2 x 25 W RMS Signal-to-noise ratio .......................................-‰¥ 70 dBA Frequency response ...... 20 Hz -“ 20 KHz, ± 3 dB (Subwoofer) ................................................ 50 - 180Hz Input sensitivity AUX ....................... 0.5 V (max. 2 V) Impedance loudspeaker s ......................................... 4 Ω (Subwoofer) ............................................................... 8 W TUNER FM wave range ................................... 87.5 -“ 108 MHz Antenna FM ....................................................................... 75 Ω wire USB PLAYER/SD/MMC CARD USB ................................................................... 12Mb/s,V1.1 ......................................... suppor t MP3 and WMA files Number of albums/folders ................. maximum 99 Number of tracks/titles ...................... maximum 400 GENERAL INFORMATION AC Power (for the main uint)............100 -“ 240 V, ........................................................................\ ............ 50/60 Hz AC Power (for the subwoofer)..............110V, 60Hz Dimensions (w x h x d, main unit) ........................................................210 x 200 x 567 \ (mm) Dimensions (w x h x d, subwoofer) ...........................................................70 x 197 x 302 (mm) Weight (main unit) .................................................... 3 kg Weight (subwoofer) ............................................. 3.3 kg Wireless subwoofer connection.........2.4GHz, AFH Standby power consumption ............................ <2 W Eco power standby ................................................. <1 W Specifications and external appearance are subject to change without notice.TECHNICAL SPECIFICATION 1 - 2

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1-3 LF Generator e.g. PM5110 Recorder Use Universal Test Cassette CrO2SBC419 4822 397 30069 LEVEL METERe.g. Sennheiser UPM550 with FF-filter S/N and distortion met e e.g. Sound Technology ST170 L R DUT or Universal Test Cassette FeSBC420 4822 397 30071 LEVEL METERe.g. Sennheiser UPM550 with FF -filter S/N and distortion metere.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 aeriale.g. 7122 707 89001 Tuner AM (MW,LW) To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage. Use a bandpass filter (or at least a high pass filter with 250Hz) to e\ liminate 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 f\ rom the pilottone (19kHz, 38kHz). Ri=50 : Tuner FM MEASUREMENT SETUP