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ST-SE520

4-2. SCHEMATIC DIAGRAM – TUNER SECTION –

• See page 5 for Waveform.
• See page 11 for IC Block Diagram.

www.freeservicemanuals.info

7/23/2017

Digitized in Heiloo Netherland

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Summary of Contents for ST-SE520

Page 1: ...1 AEP Model UK Model SPECIFICATIONS SERVICE MANUAL FM STEREO FM AM TUNER ST SE520 www freeservicemanuals info 7 23 2017 Digitized in Heiloo Netherland ...

Page 2: ...OR IN SUPPLEMENTS PUBLISHED BY SONY TABLE OF CONTENTS 1 GENERAL 2 2 TEST MODE 3 3 ELECTRICAL ADJUSTMENTS 5 4 DIAGRAMS 4 1 Circuit Boards Location 5 4 2 Schematic Diagram Tuner Section 6 4 3 Printed Wiring Board Tuner Section 7 4 4 Schematic Diagram Display Section 8 4 5 Printed Wiring Board Display Section 9 4 6 IC Pin Function 10 4 7 IC Block Diagrams 11 5 EXPLODED VIEW 12 6 ELECTRICAL PARTS LIST...

Page 3: ...power 2 While pressing 4 and AUTO BETICAL SELECT together turn ON The items in the following table will be checked automatically in order every 2 seconds FM RDS Display Items Tuned IF Frq Sig Level Stereo RDS Signal AST signal LOW IF COUNT OK SI LEVELh70dB ST signal LOW RDS DATA OK DISPLAY OK or NG OK or NG OK or NG OK or NG OK or NG AM MW LW OK or NG OK or NG NG IC201 NG RV201 adjustments TB101 I...

Page 4: ...ssed the process will end NOTE As contents of the Factory Preset will be written into memory after completing this check mode delete contents of memory according to 4 Forced RESET 3 Entering the Factory Preset In case perform just to write memory of the Factory Preset 1 Turn OFF the power 2 While pressing 3 and AUTO BETICAL SELECT together turn ON 4 Forced RESET Used to delete the contents of Fact...

Page 5: ...re critical for safety Replace only with part number specified Indication of transistor Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F FM SECTION 3 ELECTRICAL ADJUSTMENT...

Page 6: ...6 6 ST SE520 4 2 SCHEMATIC DIAGRAM TUNER SECTION See page 5 for Waveform See page 11 for IC Block Diagram Page 8 Page 8 www freeservicemanuals info 7 23 2017 Digitized in Heiloo Netherland ...

Page 7: ...ation Semiconductor Location D201 A 5 D901 B 5 D902 B 5 D903 C 5 D904 C 5 D905 C 4 D906 D 5 D907 C 3 D908 C 3 IC201 B 1 IC302 A 4 IC802 D 3 IC901 C 3 Q301 A 3 Q302 A 2 Q303 A 3 Q304 A 3 Q702 D 1 Q901 C 2 Ref No Location Page 9 Page 9 www freeservicemanuals info 7 23 2017 Digitized in Heiloo Netherland ...

Page 8: ...8 8 ST SE520 4 4 SCHEMATIC DIAGRAM DISPLAY SECTION See page 5 for Waveform See page 10 for IC Pin function Page 6 Page 6 PIN FUNCTION www freeservicemanuals info 7 23 2017 Digitized in Heiloo Netherland ...

Page 9: ...9 9 ST SE520 4 5 PRINTED WIRING BOARD DISPLAY SECTION See page 5 for Circuit Boards Location Page 7 Page 7 www freeservicemanuals info 7 23 2017 Digitized in Heiloo Netherland ...

Page 10: ...ernal control Not used RDS data input Rotary encoder phase detection Key input Key input Signal input Analog power supply 5V Reference voltage 5V Remote control input Rotary encoder number of rotation detection RDS data clock input Power supply ON OFF monitor Ground VDD ANT ANT BAND 1 BAND 2 IF B NC MONO TUN RESET X2 4 19MHz GND NC LOCK VDD CLK DATA D IN CE BLN ST CAL AST AVSS MUTE E ON PGM DATA R...

Page 11: ...RATOR DEFFERENTIAL DECODER BIPHASE SYMBOL DECODER OSCILLATOR AND DIVIDER 57kHz BANDPASS 8th ORDER CONTAS LOOP VARIABLE AND FIXED DIVIDER REFERENCE VOLTAGE ANTI ALIASING FILTER CLOCKED COMPARATOR TEST LOGIC AND OUTPUT SELECTOR SWITCH RECONSTRUCTION FILTER 14 15 16 13 12 11 10 9 3 2 1 4 5 6 7 8 CLOCK REGENERATION AND SYNC VP1 RDCL TS7 OSCO OSCI V DDD V SSD TEST TSTLD QUAL RDDA Vref MUX V DDA V SSA C...

Page 12: ...YPE2 IT 3 24 4 963 404 21 EMBLEM 5 A SONY 25 1 773 002 11 WIRE FLAT TYPE 15 CORE 26 4 921 941 01 CUSHION FL 27 1 693 410 21 TUNER PACK 28 3 669 610 00 SPACER 29 1 668 816 11 TRANSFORMER BOARD FL701 1 517 177 21 INDICATOR TUBE FLUORESCENT 0PC901 1 575 651 21 CORD POWER AEP 0PC901 1 751 523 11 CORD POWER UK 1 4 997 882 01 KNOB T BLACK 1 4 997 882 11 KNOB T SILVER 2 X 4949 582 2 PANEL ASSY FRONT BLAC...

Page 13: ...S133T 77 D702 8 719 991 33 DIODE 1SS133T 77 D703 8 719 991 33 DIODE 1SS133T 77 D705 8 719 991 33 DIODE 1SS133T 77 D707 8 719 991 33 DIODE 1SS133T 77 FLUORESCENT INDICATOR FL701 1 517 177 21 INDICATOR TUBE FLUORESCENT IC IC701 8 759 495 96 IC uPD780205GF 040 3BA IC702 8 749 014 66 IC NJL64H400A TRANSISTOR Q701 8 729 119 78 TRANSISTOR 2SC2785 HFE RESISTOR R701 1 249 437 11 CARBON 47K 5 1 4W R703 1 2...

Page 14: ... 2P LEAD ECP900 1 690 880 51 LEAD WITH CONNECTOR TRANSFORMER 0PT901 1 423 525 11 TRANSFORMER POWER A 4407 374 A TUNER BOARD COMPLETE 1 690 880 41 LEAD WITH CONNECTOR CAPACITOR C101 1 162 306 11 CERAMIC 0 01uF 20 16V C102 1 126 964 11 ELECT 10uF 20 50V C103 1 162 306 11 CERAMIC 0 01uF 20 16V C104 1 126 964 11 ELECT 10uF 20 50V C105 1 124 463 00 ELECT 0 1uF 20 50V C201 1 162 288 31 CERAMIC 330PF 10 ...

Page 15: ...RBON 1 8K 5 1 4W F R309 1 247 815 91 CARBON 220 5 1 4W R310 1 247 815 91 CARBON 220 5 1 4W 0R316 1 249 405 11 CARBON 100 5 1 4W F R317 1 249 417 11 CARBON 1K 5 1 4W F R318 1 249 417 11 CARBON 1K 5 1 4W F 0R319 1 249 405 11 CARBON 100 5 1 4W F 0R320 1 249 381 11 CARBON 100 5 1 4W F R331 1 247 815 91 CARBON 220 5 1 4W R332 1 247 815 91 CARBON 220 5 1 4W R333 1 249 417 11 CARBON 1K 5 1 4W F R334 1 24...

Page 16: ...y Corporation Home Audio Division Company 9 922 832 12 2000D097511 1 Printed in Hungary 2000 4 Published by Quality Assurance Dept ST SE520 www freeservicemanuals info 7 23 2017 Digitized in Heiloo Netherland ...

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