Philips mcw 770 21 22 37 service manual
This is the 77 pages manual for philips mcw 770 21 22 37 service manual.
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Extracted text from philips mcw 770 21 22 37 service manual (Ocr-read)
Page 1
1-2 TECHNICAL SPECIFICATION General: Mains voltage : 230V±10%, 50Hz for /22 127V/240V +10% -15%, 50-60Hz switchable for for /21 120V±10%, 60Hz for /37 Power consumption :²45W (measured at 1/8 P rated ) ²10W in Standby ²0,5W in ECO Standby Input / Output: Auxiliary / CDR in: input sensitivity :²500mV rms , Aux ²1000mVrms , CDR input impedance : 29kW Headphone: output level : max. 2,5V rms at100½ frequency response : 40Hz - 16.000 Hz ±3dB (typ. ±1dB), measured in JAZZ mode distortion :²1% (typ. 0,15%) at 1 kHz and -20dB output level at 120W channel difference :²1dB at 1 kHz channel crosstalk :²-35dB at 1kHz (typ. -60dB) signal/noise ratio :³60dB (A-weighted) Amplifier: Power stage protection : shortcircuit and DC Output power : 2 x 70W rms +0,6dB at 6WD=10% frequency response: 40Hz - 16000Hz ±3dB (typ. ±1dB), measured in JAZZ mode distortion :²1% (typ. 0,15%) at 1 kHz and 1W output power channel difference :²1dB at 1 kHz and 1W output power channel crosstalk :²-35dB at 1kHz (typ. -60dB) signal/noise ratio :³60dB (A-weighted) DC on output :²50mV with no signal on input Digital Sound Control DSC tolerance: ±3dB 60Hz 1kHz 12kHz Jazz (flat) : -1dB 0dB 0dB Rock : +18dB +2,5dB +8dB Pop : +17dB +2dB 0dB Optimal : +9dB +1dB +3,5dB Virtual Environment Control VEC tolerance: ±3dB 60Hz 1kHz 12kHz Jazz (flat) : -1dB 0dB 0dB Cyber : +6,5dB +2dB +5dB Concert : +4,5dB +2dB +3dB Cinema : +7dB +2dB +2dB Hall : +13dB +2dB +1dB Tuner: FM MW (AM) tuning range 87,5 - 108 MHz 531 - 1602 kHz (530 - 1700 kHz for /21/37) IF 10,7 MHz ± 20 kHz 450kHz ± 1 kHz sensitivity Mono: 26dB S/N, m=30% ²5 µV ( 2µV typ.)²4mV/m ( 2mV/m typ.) -3 dB limiting point ²5 µV ( 2µV typ.) frequency grid 50 kHz 9 kHz (100 kHz for /37) (10 kHz for /37) (50/100 kHz* for /21) (9/10 kHz* for /21) * can be selected via software initialization distortion²3% (²1% typ.)²5% ( 3% typ.) RF=1mV Æf=75kHz RF=50mV/m m=80% image rejection ratio³25dB (40dB typ.)³28dB channel separation at 1kHz³22dB (27dB typ.) ----
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CD module: To be measured on COMBI BOARD connector 1015 . frequency response : 20Hz - 20.000 Hz ±3dB signal/noise ratio :³76dB (A-weighted) distortion :²0,5% at 1 kHz) channel difference :²1dB at 1 kHz channel crosstalk :²-60dB at 1kHz de emphasis : 0 or 15/50µs switched automatically by subcode on the disc laser output power : 500µW wave length : 780 ±20nm Wireless module ãWESSLIÒ: To be measured on COMBI BOARD connector 1022 . frequency response : 20 - 20.000 Hz ±3dB signal/noise ratio :³94dB (A-weighted) distortion :²0,05% at 1 kHz) channel difference :²1dB at 1 kHz channel crosstalk :²-75dB at 1kHz Measurement setup L R LEVEL METERe.g. Sennheiser UPM550 with FF-filter S/N and distortion metere.g. Sound Technology ST1700B DUT CD Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3) 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=50W 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=50W Tuner FM 1-3 TECHNICAL SPECIFICATION