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ST-SE570 SERVICE MANUAL Ver 1.0 2001.04 AEP Model UK Model SPECIFICATIONS FM tuner section Frequency range Aerial terminals 87.5 - 108.0 MHz (50 kHz step) 75 , unbalanced IEC-male AM tuner section Frequency range MW: LW: 522 - 1,611 kHz (9 kHz step) 144 - 288 kHz (1 kHz step) General Power requirements Power consumption Dimensions Weight Supplied accessories Audio cord (1) AM loop antenna (1) FM wire antenna (1) EON connecting cord (1) Design and specifications are subject to change without notice. 230 V AC, 50/60 Hz 10 W 430 x 83 x 290 mm (w/h/d) 2.5 kg Intermediate frequency 10.7 MHz Sensitivity at 26 dB quieting (mono) 10.3 dBf, 0.9 µV/75 at 46 dB quieting (stereo) 38.5 dBf, 23 µV/75 Intermediate frequency 450 kHz Usable Sensitivity MW: LW: Signal-to-noise ratio MW: LW: (with AM loop aerial) 200 µV/m 700 µV/m 54 dB (50 mV/m, 999 kHz) 50 dB (50 mV/m, 216 kHz) 0.3% (50 mV/m, 400 Hz) 50 dB Usable sensitivity (IHF) 10.3 dBf, 0.9 µV/75 S/N at 40 kHz deviation 74 dB (mono), 69 dB (stereo) 0.09% (mono), 0.18% (stereo) 30 Hz - 15 kHz (+0.5/­1.0 dB) 45 dB at 1 kHz at 400 kHz 85 dB at 300 kHz 70 dB at 40 kHz deviation 600 mV Harmonic distortion Selectivity Harmonic distortion Frequency response Separation Selectivity Output FM STEREO FM-AM TUNER 9-873-834-11 2001D0500-1 C 2001.4 Sony Corporation Home Audio Company Shinagawa Tec Service Manual Production Group ST-SE570 TABLE OF CONTENTS 1. 2. GENERAL ... 3 DISASSEMBLY SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 2-1. Disassembly Flow ... 4 2-2. Case (407026) ... 4 2-3. MAIN Board ... 5 3. 4. 5. TEST MODE ... 6 ELECTRICAL ADJUSTMENTS ... 8 DIAGRAMS 9 10 11 12 13 14 5-1. Note for Printed Wiring Boards and Schematic Diagrams ... 5-2. Printed Wiring Boards ­ MAIN Section ­ ... 5-3. Schematic Diagram ­ MAIN Section ­ ... 5-4. Printed Wiring Boards ­ DISPLAY Section ­ ... 5-5. Schematic Diagram ­ DISPLAY Section ­ ... 5-6. IC Pin Function Description ... 6. EXPLODED VIEWS 6-1. Case Section ... 16 6-2. Front Panel Section ... 17 6-3. Chassis Section ... 18 7. ELECTRICAL PARTS LI