File name sony_MDS-JE440_service_manual.pdfMDS-JE440
SERVICE MANUAL
US Model Canadian Model AEP Model UK Model E Model Australian Model
US and foreign patents licensed form Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism MD Mechanism Type Optical Pick-up Type
NEW MDM-7A KMS-260B/J1N
SPECIFICATIONS
System Disc Laser Laser output MiniDisc digital audio system MiniDisc Semiconductor laser ( = 780 nm) Emission duration: continuous MAX 44.6 µW1) 1) This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture. Laser diode Revolutions (CLV) Error correction Sampling frequency Coding Modulation system Number of channels Frequency response Signal-to-noiseratio Wow and flutter Material: GaAlAs 400 rpm to 900 rpm ACIRC (Advanced Cross Interleave Reed Solomon Code) 44.1 kHz ATRAC (Adaptive TRansform Acoustic Coding)/ATRAC 3 EFM (Eight-to-Fourteen Modulation) 2 stereo channels 5 to 20,000 Hz ±0.3 dB Over 96 dB during play Below measurable limit Inputs ANALOG IN Jack type: phono Impedance: 47 k Rated input: 500 mVrms Minimum input: 125 mVrms Connector type: square optical Impedance: 660 nm (optical wave length)
DIGITAL IN
Outputs ANALOG OUT Jack type: phono Rated output: 2 Vrms (at 50 k) Load impedance: over 10 k Connector type: square optical Rated output: 18 dBm Load impedance: 660 nm (optical wave length)
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DIGITAL OUT
MINIDISC DECK
General Power requirements Where purchas ed US, Canadian AEP, UK, CIS Australian Hong Kong Singapore, Malaysia Power consumption Dimensions (approx.) Power requir ements 120 V AC, 60 Hz 220 230 V AC, 50/60 Hz 240 V AC, 50/60 Hz 220 240 V AC, 50/60 Hz 110 120 or 220 240 V AC selectable, 50/60 Hz 15 W 430 × 95 × 285 mm (17 × 3 3/4 × 11 1/4 in.) (w/h/d) incl. projecting parts and controls 3.0 kg (6 lbs 10 oz)
Supplied accessories · Audio connecting cords (2) · Optical cable (1) · Remote commander (remote) (1) · R6 (size-AA) batteries (2)
US and foreign patents licensed from Dolby Laboratories. Design and specifications are subject to change without notice.
Mass (approx.)
SELF-DIAGNOSIS FUNCTION
The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box in the instruction manual. For details on how to check error codes during servicing, refer to the following "Procedure for using the SelfDiagnosis Function (Error History Display Mode)".
Self-diagnosis function
The deck's self-diagnosis function automatically checks the condition of the MD deck when an error occurs, then issues a three- or five-digit code and an error message on the display. If the code and message alternate, find them in the following table and perform the indicated countermeasure. Should the problem persist, consult your nearest Sony |