04:33
máy tính nguyên vũ
In order to attain highly efficient-ization more, inheriting the basic stream composition of a 4 time oversampling digital filter and "Z filter" constituted by the 3rd Bessel filter as it is,It changes to the conventional LSI and 4 time oversampling LSI of a 16-bit is carried as a digital analog converter.
Moreover, the decoder circuit is summarized by 3 chip LSI because the digital filter before a D-A conversion and LSI for PLL demodulator circuits also throw in a newly developed type.
A small weight saving and no vibrating-ization were investigated in compact-disk drive part, and CDM-2 to which a new enhancement was performed is adopted as it.
The "high-density glass wool plastics" currently used for the medicine equipment and the precision instrument was adopted as compact-disk drive mechanism component parts, such as a subchassis and a swing arm, and the fall of resonance frequency is realized with the weight saving.
Moreover, by Philips's original replica technology, a 10-micron aspheric surface skin film is coated on the surface of an objective lens, optical system is constituted from two lenses, and the spherical aberration which is not avoided is banished in the spherical lens.
Furthermore, a focusing mechanism is improved from the conventional man-month (moving magnet) type to MC (moving coil) type, and quick tracking is made possible.
CDM-2 is carried with the perfect floating structure. The tray lid currently united with the tray was also made to become independent, the whole included compact-disk drive mechanism was made to separate from a chassis, and the tray is float-ized.
The digital output is carried.
The remote control (RMC-75) which carries a ten key is attached.
The multi-display which indicates three kinds of time intelligences on total time, lapsed time, and residual quantity time, track amber, and the index number by intensive is carried.
A sound-recording start is controllable by combining with the cassette deck corresponding to Marantz synchro Lec (subset-dependency565, subset-dependency-74 grade) with the play button of compact-disk-75.
The headphone jack with a volume is carried.
By a direct play functionality, if a play button is operated, a disk tray will close and a performance will be begun automatically.
The random access special NetWare program of a maximum of 20 music, the skip play of a maximum of 99 music, the index play, 3 speed search, the repeat function, etc. are carried.
| Form | Compact disk player |
| Digital analog converter | L/R independent 2DAC 4 time oversampling digital filter |
| Filter | The 3rd Bessel filter |
| The number of channels | Two channels |
| Frequency characteristic | 2Hz-20000Hz±0.3dB |
| Dynamic range | 96dB |
| S/N ratio | 96dB |
| Channel separation | 94dB(1kHz) |
| THD | 0.003%(1kHz) |
| Wow and flutter | Quartz-crystal precision |
| Error correcting system | CIRC |
| Voice output | 2Vrms |
| Laser | AIGaAs semiconductor |
| Wavelength | 800nm |
| Sampling frequency | 44.1kHz |
| Quatization | A 16-bit linear / channel |
| Power source | AC100V, 50Hz/60Hz |
| Power consumption | 20W |
| Dimensions | Width 420x height 86x depth of 304mm |
| Weight | 4kg |
| Adjunct | Remote control RMC-75 |
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