Sony MZ-R37 specifications Specifications

SERVICE MANUAL

Ver 1.4 2001. 01 With SUPPLEMENT-1(9-926-952-81)

With SUPPLEMENT-2(9-926-952-82)

US and foreign patents licensed from Dolby Laboratories Licensing Corporation.

MZ-R37

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Tourist Model

Model Name Using Similar Mechanism	MZ-R55
MiniDisc Mechanism Type	MT-MZR37-161
Optical Pick-up Type	KMS-280A

SPECIFICATIONS

System

Audio playing system

MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: λ = 780 nm Emission duration: continuous Laser output: less than 44.6 ∝ W

(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 Maximum 74 minutes (MDW-74, stereo recording)

Maximum 148 minutes (MDW-74, monaural recording)

Revolutions

400 rpm to 900 rpm (CLV) Error correction

Advanced Cross Interleave Reed Solomon Code (ACIRC)

Sampling frequency 44.1 kHz

Sampling rate converter

Input: 32 kHz / 44.1 kHz / 48 kHz Coding

Adaptive TRansform Acoustic Coding (ATRAC) Modulation system

EFM (Eight to Fourteen Modulation) Number of channels

2 stereo channels

1 monaural channel

Frequency response

20 to 20,000 Hz ± 3 dB Wow and Flutter Below measurable limit Inputs

MIC (PLUG IN POWER): stereo mini-jack, 0.35–1.38 mV

(OPTICAL) LINE IN: stereo mini-jack with optical (digital) in

•Line in: 69–194 mV

•Optical (digital) in: wave length 660 nm

Outputs

PHONES/REMOTE: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 16 ohm

LINE OUT: stereo mini-jack, 194 mV, load impedance 10 kilohm or greater

General

Power requirements

Sony AC Power Adaptor (supplied) connected at the DC IN 4.5 V jack:

120 V AC, 60 Hz (US, Canadian model) 220–230 V AC, 50/60 Hz (AEP model) 230–240 V AC, 50 Hz (UK model)

240 V AC, 50 Hz (Australian and New Zealand model) Two nickel-cadmium rechargeable batteries

NC-AA (supplied)

Two LR6 (size AA) alkaline batteries (not supplied)

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PORTABLE MINIDISC RECORDER

MICROFILM