YAMAHA CD-3
¥ 89,800 (around 1985)
Commentary
CD player with digital filter built-in type LSI.
We have adopted a newly designed LSI that is finer than before and has increased the circuit integration by adopting the 2 μ m rule.
The signal processing LSI with built-in digital filter is an N-MOS type, and has a structure that integrates various digital signal processing including interleave demodulation, error detection and error correction.
The servocontrol LSI is a C-MOS type that enables high-speed processing and low power consumption. It performs signal processing such as demodulation of EFM signals and sub-codes as well as various servocontrol including optical heads, and eliminates the influence of disturbance and provides highly reliable disk control.
Equipped with a digital filter with 2 x oversampling, the CD signal sampled at 44.1 kHz is doubled to 88.2 kHz, reducing the load on the analog low-pass filter.
In addition, the analog low-pass filter is composed of a third order active filter abrupt changes in phase characteristics and acquires simple characteristics. The analog low-pass filter also uses a carefully selected high-quality capacitor.
The optical head uses a three beam method, in which three beams are irradiated obliquely, and errors between the leading and trailing beams are detected to provide precise high-speed servo.
The new aLPC circuit automatically controls the amount of light reflected from the disk, enabling stable reading.
The use of a large, low-impedance, large-capacity power supply improves sound quality.
It is equipped with a 9-track random program function, a repeat function between all tracks / programs / A and B, an index search, and a 2-speed search capable of monitoring.
Equipped with a headphone port with volume.
Wireless remote control is included.
Model Rating
| Type | CD Player |
| Optical head | 3 Beam Laser / Axis Slide Type |
| Filter | Digital filter Third order analog active filter |
| Frequency characteristic | 3 Hz ~ 20 kHz + 0.5 -1.0 dB |
| Harmonic distortion factor | 0.004% (1 kHz, EIAJ) |
| Signal-to-noise ratio | 98dB(EIAJ) |
| Dynamic range | 96dB(EIAJ) |
| Channel separation | 90dB(1kHz) |
| Wow flutter | Below the measurement limit |
| Output voltage | 2Vrms |
| Feature | Nine track random program Index search Repeat (all songs / program songs / between A and B) |
| External dimensions | Width 435x Height 94x Depth 291 mm |
| Weight | 5.7kg |
| Attachment | Wireless Remote Control |