Maintenance; Specifications - Sharp MD-R3 Operation Manual

MAINTENANCE

SPECIFICATIONS

As a part of our policy for continuous improvement, SHARP reserves the right to make design and specification changes
for product improvement without prior notice. The performance specification figures indicated are nominal values of
production units. There may be some deviations from these values in individual units.
General
Type: MD/CD Deck
Power source: AC 120 V, 60 Hz
Power consumption: 20 W
Dimensions: Width: 16-15/16" (430 mm)
Height: 4-11/16" (118 mm)
Depth: 11-15/16" (302 mm)
Weight: 11.3 lbs. (5.1 kg)
Input jacks
Jack name Jack shape Input
impedance
LINE IN Pin jack Over
22 kohms
OPTICAL Square
IN (Optical)
optical
connector
COAXIAL Pin jack 75 ohms
(Coaxial)
MIC (Micro- Stereo 600 ohms
phone) jack
Output jacks
Jack name Jack shape
PHONES 1/4" (6.3 mm) stereo
(Headphones) jack
LINE OUT Pin jack
OPTICAL Square optical connector
OUT (Optical)
Internal care
In order to ensure proper operation of the CD player, preven-
tative maintenance (cleaning of the Laser Pick-up lens) should
be performed periodically in order to keep the lens dust-free.
Lens cleaners are commercially available. Contact your local
CD software dealer for options.
External care
Periodically wipe the cabinet with a soft cloth and dilute soap
solution, then wipe with a dry cloth.
Do not use chemically treated cleaning cloths or other chem-
icals.
MiniDisc recorder section
Type:
Signal readout:
Audio channels:
Frequency response:
Rotation speed:
Error correction:
Coding:
Recording method:
Reference Minimum
input level input level A/D, D/A converter:
Sampling frequency:
680 mVrms 170 mVrms
Wow and flutter:
Signal/noise ratio:
Dynamic range:
T.H.D. at 1 kHz:
500 mVp-p
6 mVrms
Compact disc player
Type:
Signal readout:
Rotation speed:
Error correction:
Output Load
Quantization:
level impedance
Frequency response:
15 mW 32 ohms
D/A converter:
Signal/noise ratio:
Dynamic range:
2 Vrms 50 kohms
Wow and flutter:
Timer/clock
Type:
Timer:
44
MD-R3
MiniDisc recorder
Non-contact, 3-beam semi-con-
ductor laser pick-up
Stereo 2 channels/monaural
(long-play mode) 1 channel
4 – 20,000 Hz (+0/-1 dB)
400 – 900 rpm CLV, Approx.
ACIRC (Advanced Cross Inter-
leave Reed-Solomon Code)
ATRAC (Adaptive TRansformed
Acoustic Coding)
Magnetic modulation overwrite
method
1 bit
44.1 kHz
Unmeasurable (less than
0.001% W. peak).
100 dB (1 kHz)
90 dB (1 kHz)
0.008%
3-disc multi-play compact disc
player
Non-contact, 3-beam semiconduc-
tor laser pickup
200 - 500 rpm CLV, Approx.
CIRC (Cross Interleave Reed-Sol-
omon Code)
16-bit linear
4 - 20,000 Hz (+0/–1 dB)
1 bit
100 dB (1 kHz)
90 dB (1 kHz)
Unmeasurable
(less than 0.001% W. peak)
Digital clock with date function
ON/OFF, once a day