Philips mcb 146 service manual
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Extracted text from philips mcb 146 service manual (Ocr-read)
Page 1
AMPLIFIER Output p ower.......................................... .2 x 2W RMS Signal-to-noise ratio.......................... ≥ 60 d BA (IEC) Frequency respons e...................... .125 – 16000 Hz Impedance loudspea kers.......................................... .8Ω CD PL AYER Frequency rang e.............................. .125 – 16000 Hz Signal-to-noise ratio........................................... .65 d BA TUNER FM w averang e.................................. .87.5 – 108 MHz Sensitivity – FM 26 dB sensitivit y......................................... .20 µV Total ha rmonic disto rtion..................................... ≤ 5% SPEAKERS Bass reflex system Dimensions (w x h x d ).134 x 230 x 152 (mm) GENERAL INFORM ATION ACPower.................................... .220 – 230 V / 50 Hz Dimensions (w x h x d )..148 x 233 x 216 (mm) Weight (with/without spea kers).................................. ........................................................ .appr ox. 3.65 / 1.53 kg Power consumption Acti ve........................................................................\ . .15 W Stand by................................................................... .<4W Specifications and external appea rance a re subject to change without notic e. TECHNICAL SPECIFICATION 1 - 2 Type /Versions : Feature s Board inused : MCB146 Service policy DISPL AY BOARD MAIN BOARD *TIPS : C -- Component Lever Repai r. M -- Module Lever Repair √ -- Used /05 /12 /55 89/ 16/ 85/ Feature di ffrence RDS & DAB VO LTAGE SELEC TOR ECO S TANDB Y - DARK √ Type /Versions : MCB146 /05 /12 /55 89/ 16/ 85/ VERSION VARIATION 39/ 39/ C C √
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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 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