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Sony MZ-R37 specifications US Model Canadian Model AEP Model UK Model, With SUPPLEMENT-2, System

Models: MZ-R37

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SERVICE MANUAL

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)

– Continued on next page –

PORTABLE MINIDISC RECORDER

MICROFILM

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Sony MZ-R37 specifications US Model Canadian Model AEP Model UK Model, E Model Australian Model Tourist Model, System

Contents

MZ-R37 SPECIFICATIONSUS Model Canadian Model AEP Model UK Model E Model Australian Model Tourist ModelPrecautions for Using Optical Pick-up KMS-280A Precautions for Laser Diode Emission CheckOptical Pick-upflexible board SELF-DIAGNOSTIC TABLE OF CONTENTSDIAGRAMS DISASSEMBLY– 4 – SECTION 1 GENERAL2-2.TEST MODE SETTING SECTION SELF-DIAGNOSTIC2-3.OPERATION IN TEST MODE SETTING 2-5. SELF-DIAGNOSTICMODE• Description of Error Indication Codes – 6 –Problem • Description of History Codes– 7 – SECTION DISASSEMBLY3-1.PANEL, BOTTOM 3-2.PANEL SV ASSY, FRONT– 8 – 3-4.CONNECTOR3-3.LCD MODULE 1 CN8013-5.MAIN BOARD – 9 –3-6.PANEL SV ASSY, UPPER 2 1.7x4.5, tapping3-7.CABINET SV ASSY – 10 –3-8.OP BLOCK ASSY 1 MD, step– 11 – Notes for Installation of the OP Block Assy3-9.HOLDER ASSY • Location of the Flexible Board marked lineXX XX SERVO 4-2.TEST MODE SETTINGSECTION 4 TEST MODE – 12 –32 OF S-GAIN 32 OF SERVOOA 000a4F OA 000b4FXX XX MECHA XX XX AUDIO4-5.OVERALL ADJUSTMENT MODE ASSY MODE XX XX POWERXXASSY-M 51CD-RUN4-6.HYBRID MODE, KEY CHECK MODE – 16 –PRECAUTIONS FOR ADJUSTMENT SECTION ELECTRICAL ADJUSTMENTSLASER POWER CHECK MO TRAVERSE ADJUSTMENTLOW REFLECTION CD TRAVERSE ADJUSTMENT – 18 –CD TRAVERSE ADJUSTMENT ConnectionCD RF LEVEL CHECK – 19 –RF waveform – 20 – SECTION DIAGRAMS6-1.IC PIN DESCRIPTIONS – 21 – • IC801 CXP740010 SYSTEM CONTROL – 22 –– 23 – Signal path 6-2.BLOCK DIAGRAM — SERVO SECTION —MZ-R37 – 25 –– 27 – 6-4.BLOCK DIAGRAM — SYSTEM CONTROL SECTION —– 28 – – 29 –– 31 – 6-5.PRINTED WIRING BOARD– 32 – – 33 –– 36 – – 35 –– 37 – • Waveforms– 39 – – 38 –– 40 – • Waveform– 42 – – 41 –MZ-R37 – 45 – – 44 –– 46 – IC761 BA6966FV-E2 – 47 –IC803 AK6420AM-E IC901 MPC18A35FTA – 49 – SECTION EXPLODED VIEWS7-1.PANEL SECTION 2 3 14 13 12 11 9 10 87-2.CABINET SV ASSY SECTION – 50 –52 62 69 667-3.MECHANISM DECK SECTION MT-MZR37-161 101 104 – 51 –108 111 109 124 113SECTION ELECTRICAL PARTS LISTMAIN – 52 –MAIN – 53 –MAIN – 54 –MAIN – 55 –– 56 – MZ-R37 MAINSony Corporation 9-926-952-12• ACCESSORIES & PACKING MATERIALS SERVICE MANUALSUPPLEMENT-1 Ver 1.2 1999.SCHEMATIC DIAGRAM PRINTED WIRING BOARDSUPPLEMENT-2 Ver 1.3 1999.1 A B C SIDE AD E F G H Page SIDE A 2. PRINTED WIRING BOARD — US MODEL —1 A B C D E F G HPage MZ-R37 • Difference of Schematic Diagram US Model– 12 – – 13 –MZ-R37 4. SCHEMATIC DIAGRAM — MAIN SECTION 2/3 —– 15 – – 17 –MZ-R37 5. SCHEMATIC DIAGRAM — MAIN SECTION 3/3 —– 19 – – 20 –MAIN 6. ELECTRICAL PARTS LIST– 21 – – 22 – MAINRef. No – 23 – MAINRef. No – 24 – MAINPart No – 25 – MAINPart No 7. Corrections • EXPLODED VIEWS • ELECTRICAL PARTS LIST/MISCELLANEOUSINCORRECT CORRECT