Sony MZ-NH900 Operating Instructions - Page 86
Specifications - hi md minidisc
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On maintenance Clean the terminals periodically with a cotton swab or a soft cloth as illustrated. If you have any questions or problems concerning your recorder, please consult your nearest Sony dealer. (If a trouble occurred when the disc was in the recorder, we recommend that the disc be left in the recorder when you consult your Sony dealer so that the cause of trouble may be better understood.) Specifications Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: λ = 790 nm Emission duration: continuous Laser output: less than 44.6 µW (This output is the value measured at a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.) Recording and playback time When using HMD1G (1GB disc): Maximum 34 hours in Hi-LP stereo When using MDW-80 in Hi-MD mode: Maximum 10 hours and 10 min. in Hi-LP stereo When using MDW-80 in MD mode: Maximum 160 min. in monaural Maximum 320 min. in LP4 stereo Revolutions 350 rpm to 3,000 rpm (CLV) Error correction Hi-MD: LDC (Long Distance Code)/BIS (Burst Indicator Subcode) MD: ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz Coding Hi-MD: ATRAC3plus (Adaptive TRansform Acoustic Coding 3 plus) MD: ATRAC ATRAC3 - LP2/LP4 Modulation system Hi-MD: 1-7RLL (Run Length Limited)/PRML (Partial Response Maximum Likelihood) MD: EFM (Eight to Fourteen Modulation) Frequency response 20 to 20,000 Hz ± 3 dB 86