Sony STSE520 free download

File name Sony-STSE520 tun.pdf

ST-SE520 SERVICE MANUAL AEP Model UK Model SPECIFICATIONS FM STEREO FM-AM TUNER 1 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 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. 5. EXPLODED VIEW ... 12 6. ELECTRICAL PARTS LIST ... 13 SECTION 1 GENERAL Front Panel Descriptions 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 11 12 13 14 15 16 17 18 19 17 18 19 ! (Power)switch EON TA button EON NEWS/INFO button PTY button DISPLAY button Display window CHARACTER button TUNE MODE button TUNING/SELECT knob ENTER button AUTO-BETICAL SELECT button MEMORY button FM MODE button BAND button SHIFT button Numeric buttons DIRECT button MENU button RETURN button 2 SECTION 2 TEST MODE 1. Circuit Check Mode Set to the reception frequency that the circuit can STEREO RDS stations. (Set the input level to above 70 dB.) This enables circuit check to be performed in any of the reception modes-FM, AM (MW, LW). Set to a desired band before setting the test mode. 1. Turn OFF the 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. Display Tuned IF Frq Sig Level Stereo RDS Signal Items AST signal =LOW IF COUNT OK SI LEVELh70dB ST signal=LOW RDS DATA OK DISPLAY FM RDS OK or NG OK or NG OK or NG OK or NG OK or NG NG IC201 NG, RV201 adjustments AM (MW, LW) OK or NG OK or NG TB101, IC201 NG TB101 NG TB101 NG IC802 NG 3 NOTE : The preset data will be erased when this test mode is used. Therefore, take down the data before setting this mode and preset the data again after completing operations in this mode. 2. Display Tube Check and KEY Check mode 1. Turn OFF the power. 2. While pressing 1 and AUTO-BETICAL SELECT together, turn ON ! . 3. While continuously pressing 1 and AUTO-BETICAL SELECT together, ch