MDS-JA20ES

MDS-JA20ES SERVICE MANUAL US Model Canadian Model AEP Model UK Model Photo: GOLD Type U.S. and foreign patents licensed form Dolby Laboratories Licensing Corporation. Model Name Using Similar Mechanism MD Mechanism Type Base Unit Name Optical Pick-up Name NEW MDM-6A MBU-5C KMS-260A/J1N SPECIFICATIONS System Disc Laser Laser output MiniDisc digital audio system MiniDisc Semiconductor laser ( λ=780nm) Emission duration: continuous Less than 44.6 µW* * 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. Material: GaAIAs 400 rpm to 900 rpm Advanced Cross Interleave Reed Solomon Code (ACIRC) 44.1 kHz Adaptive Transform Acoustic Coding (ATRAC) EFM (Eight-to-Fourteen Modulation) 2 stereo channels 5 to 20,000 Hz ±0.3 dB Over 102 dB during playback Below measurable limit Inputs Jack type LINE (ANALOG) Phono IN jacks DIGITAL IN OPT 1 Input impedance 47 kilohms Rated input Minimum input 500 mVrms 125 mVrms Laser diode properties Revolutions (CLV) Error correction Sampling frequency Coding Modulation system Number of channels Frequency response Signal-to-noise ratio Wow and f lutter Square Optical wave optical length: connector 660 nm jack Square Optical wave optical length: connector 660 nm jack Phono jack 75 ohms — — DIGITAL IN OPT 2 — — DIGITAL IN COAXIAL 0.5 Vp-p, ±20% — Outputs Jack type PHONES Stereo phone jack Rated output 28 mW 2 Vrms (at 50 kilohms) –18 dBm Load impedance 32 ...