Sony-STSE520-tun-sm 电路图 维修手册.pdf

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1、1 AEP Model UK Model SPECIFICATIONS SERVICE MANUAL FM STEREO FM-AM TUNER ST-SE520 RadioFans.CN 收音机爱 好者资料库 2 Front Panel Descriptions SECTION 1 GENERAL 1 ! (Power)switch 2 EON TA button 3 EON NEWS/INFO button 4 PTY button 5 DISPLAY button 6 Display window 7 CHARACTER button 8 TUNE MODE button 9 TUNIN

2、G/SELECT knob 10 ENTER button 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

3、 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

4、Board Display Section . 9 4-6. IC Pin Function . 10 4-7. IC Block Diagrams. 11 5. EXPLODED VIEW. 12 6. ELECTRICAL PARTS LIST. 13 97823465110 111312141516171819 11 AUTO-BETICAL SELECT button 12 MEMORY button 13 FM MODE button 14 BAND button 15 SHIFT button 16 Numeric buttons 17 DIRECT button 18 MENU

5、button 19 RETURN button RadioFans.CN 收音机爱 好者资料库 3 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

6、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. FM RDS DisplayItems Tuned IF Frq Sig Level Stereo RDS Signal AST signal =LOW

7、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, IC201 NG TB101 NG TB101 NG IC802 NG RadioFans.CN 收音机爱 好者资料库 4 NOTE : The preset data will be erased when this test mode is used

8、. 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-BET

9、ICAL SELECT together, check the following. Indication test pattern The display changes every 1 sec. 4. Release 1 and AUTO-BETICAL SELECT . The KEY CHECK mode will be set. 5. All key numbers will be displayed. Key Number : 25 6. Each time the key is pressed, the key number will be counted down. Each

10、key will be counted only once, at the first time. 7. When all keys have been pressed, 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 (I

11、n 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 Factory Preset when it is written into the preset memory.) Clears all the RAMs and sets the initial sta

12、te 1. Turn OFF the power. 2. While pressing 5 and AUTO-BETICAL SELECT together, turn ON ! . 3. When “All clear” is indicated on the fluorescent display tube, it means that “Forced Reset” has been completed. Microcomputer version indication (1 sec) t All light up “7F” t Dot area only “60” t Dot area

13、only “7E” Dot area only “5F” T Dot area only “3D” T T 1 7F2 603 7E4 3D5 5F 55 SECTION 4 DIAGRAMS 4-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For schematic diagrams. Note: All ca

14、pacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. 2 : nonflammable resistor. C : panel designation. For printed wiring boards. Note: X : parts extracted from the c

15、omponent side. x: parts mounted on the conductor side. b : Pattern from the side which enables seeing. U : B+ Line. V : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM : Can not be measured. WAVEFORMS 1 IC802

16、qf Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Indication of transistor Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal produc- tion tolerances. Waveforms ar

17、e 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 ADJUSTMENTS FM Signal Level AdjustmentAdjustment Location: TUNER BOARD Component Side Procedure: 1. Tune the set to 98 MHz.

18、2. Push the DISPLAY button for digital signal meter indication. 3. Adjust RV201 to the place where level and “70dB M” indica- tion lights on fluorescent indicator tube. 2 IC701 qs FM RF signal generator set FM ANTENNA 75 coaxial (TB101) Carrier frequency : 98 MHz Modulation: 1 kHz, 40 kHz deviation

19、Output level: 6.3 mV (76dB) (75 open) IC201 RV201 FM SIGNAL LEVEL AC SW board ENCODER board TRANSFORMER board DISPLAY board TUNER board C These are omitted EB 4.8Vp-p 4.332MHz 4.3Vp-p 4.19MHz 66 ST-SE520 4-2. SCHEMATIC DIAGRAM TUNER SECTION See page 5 for Waveform. See page 11 for IC Block Diagram.

20、(Page 8)(Page 8) 77 ST-SE520 4-3. PRINTED WIRING BOARD TUNER SECTION See page 5 for Circuit Boards Location. Ref. No.Location Semiconductor Location D201A-5 D901B-5 D902B-5 D903C-5 D904C-5 D905C-4 D906D-5 D907C-3 D908C-3 IC201B-1 IC302A-4 IC802D-3 IC901C-3 Q301A-3 Q302A-2 Q303A-3 Q304A-3 Q702D-1 Q90

21、1C-2 Ref. No.Location (Page 9) (Page 9) 88 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 99 ST-SE520 4-5. PRINTED WIRING BOARD DISPLAY SECTION See page 5 for Circuit Boards Location. (Page 7) (Page 7) 1010 4-6.

22、 IC PIN FUNCTION IC701 System Control (PD78205GF-040-3BA) I/OFunctionPin Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 I O I I O O I O I I O O I O I I I I I I I I Power supply (+5V) Not used Not used Not used Not used Not used Not

23、 used Not used Not used System reset input Oscillation signal output (4.19MHz) Oscillation signal output (4.19MHz) Ground Not used Lock signal input Power supply (+5V) PLL clock to TB101 PLL data to TB101 PLL clock from TB101 PLL Latch to TB101 Not used. Stereo display detection. Not used Auto stop

24、signal detection Ground Muting signal output External 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 O

25、N/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 RDS R2 KEY 2 KEY 1 SI AVDD AVREF R IN R 1 RDS CLK POWER GND I/OFunctionPin No.Pin Name 41 42 43 44 45 46 47 to 78 79 80 to 84 85 86 to 100 IS 5 IS

26、4 IS 3 IS 2 IS 1 VDD P1 to P32 V LOAD P33 to P37 G16 G15 to G1 I I I I I O O O Model detection Power supply (+5V) FL segment output Power supply (30V) FL segment output Not used FL grid output Abbreviation FL: FLUORESCENT INDICATOR TUBE 11 4-7. IC BLOCK DIAGRAMS Tuner section IC201 LA1235 36 11 2581

27、4 1415129101613 7 FM IF AMP LIMITER AF/NULL METER QUADRATURE DET AF AMP IF OFF NULL METER SHORTING LEVEL DET METER DRIVE MUTING CIRCUIT DETUNE DET GND B+ 1234 REG GND CONTROL REG 567 IC901 LA5667 QUALITY BIT GENERATOR DEFFERENTIAL DECODER BIPHASE SYMBOL DECODER OSCILLATOR AND DIVIDER 57kHz BANDPASS

28、(8th ORDER) CONTAS LOOP VARIABLE AND FIXED DIVIDER REFERENCE VOLTAGE ANTI- ALIASING FILTER CLOCKED COMPARATOR TEST LOGIC AND OUTPUT SELECTOR SWITCH RECONSTRUCTION FILTER 141516131211109 32145678 CLOCK REGENERATION AND SYNC VP1 RDCL TS7 OSCO OSCI VDDD VSSD TEST TSTLD QUAL RDDA Vref MUX VDDA VSSA CIN

29、SCOUT IC802 BU1922 12 SECTION 5 EXPLODED VIEW NOTE: Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) X Cabinets color Ref. No.Part No.De

30、scriptionRemarkRef. No.Part No.DescriptionRemark The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. The mechanical parts with no reference number in the exploded views are not supplied. Accessories and packing materials ar

31、e given in the last of this parts list. * 143-346-265-31HOLDER, PC BOARD * 153-697-679-01CUSHION, LS 16X-4947-124-1FOOT ASSY (F50150S)(SILVER) 16X-4947-207-1FOOT ASSY (F50150S)(BLACK) * 174-215-931-01PANEL, BACK (AEP) 174-215-931-51PANEL, BACK (UK) 183-703-244-00BUSHING, CORD * 19A-4407-374-A TUNER

32、BOARD, COMPLETE 204-951-620-01SCREW (2.6X8), +BVTP 213-703-685-21SCREW (+BV 3X8) 223-704-515-31SCREW (BV/RING) 237-685-646-79SCREW +BVTP 3X8 TYPE2 IT-3 244-963-404-21EMBLEM (5-A), SONY 251-773-002-11WIRE (FLAT TYPE)(15 CORE) * 264-921-941-01CUSHION (FL) 271-693-410-21TUNER (PACK) * 283-669-610-00SPA

33、CER * 291-668-816-11TRANSFORMER BOARD FL7011-517-177-21INDICATOR TUBE, FLUORESCENT 0PC9011-575-651-21CORD, POWER (AEP) 0PC9011-751-523-11CORD, POWER (UK) 14-997-882-01KNOB (T)(BLACK) 14-997-882-11KNOB (T)(SILVER) 2X-4949-582-2PANEL ASSY, FRONT (BLACK) 2X-4949-583-2PANEL ASSY, FRONT (SILVER) 34-977-5

34、93-01RING (DIA. 50), ORNAMENTAL 44-977-358-31CUSHION 53-931-429-71BUTTON (POWER)(BLACK) 53-931-429-81BUTTON (POWER)(SILVER) * 61-668-814-11AC SW BOARD 74-981-264-01BUTTON (4)(BLACK) 74-981-264-21BUTTON (4)(SILVER) 84-997-881-01ESCUTCHEON (BLACK) 84-997-881-11ESCUTCHEON (SILVER) * 91-668-815-11ENCODE

35、R BOARD * 10A-4407-375-A DISPLAY BOARD, COMPLETE * 114-945-292-01HOLDER, INDICATION TUBE 123-710-901-01SCREW, TAPPING (SILVER) 123-710-901-11SCREW, TAPPING (BLACK) * 134-978-901-41CASE (407026)(BLACK) * 134-985-744-01CASE (407026)(SILVER) 1 2 3 4 5 246 7 8 9 23 20 20 20 20 10 11 26 26 12 19 12 14 14

36、 15 16 27 23 23 17 18 22 PC901(AEP) PC901(UK) 29 23 25 12 13 FL701 Supplied with RV701 7 23 21 28 13 SEMICONDUCTORS In each case, u: , for example: uA.: A., uPA.: PA., uPB.: PB., uPC.: PC., uPD.: PD. CAPACITORS uF : F COILS uH : H Due to standardization, replacements in the parts list may be differe

37、nt from the parts specified in the diagrams or the components used on the set. -XX, -X mean standardized parts, so they may have some difference from the original one. Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering

38、these items. RESISTORS All resistors are in ohms METAL: Metal-film resistor METAL OXIDE: Metal Oxide-film resistor F : nonflammable SECTION 6 ELECTRICAL PARTS LIST Note: When indicating parts by reference number, please include the board name. Ref. No.Part No.DescriptionRemarkRef. No.Part No.Descrip

39、tionRemark AC SW The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. DISPLAY *1-668-814-11AC SW BOARD * 0C9511-113-915-11CERAMIC0.001uF20%250V 0S9011-572-267-51SWITCH, PUSH (AC POWER)(1 KEY)(!) * *A-4407-375-A DISPLAY BOARD

40、, COMPLETE * *4-921-941-01CUSHION (FL) *4-945-292-01HOLDER, INDICATION TUBE 7-685-872-09SCREW +BVTT 3X8 (S) C7011-162-306-11CERAMIC0.01uF20%16V C7021-162-306-11CERAMIC0.01uF20%16V C7031-162-209-31CERAMIC27PF5%50V C7041-162-209-31CERAMIC27PF5%50V C7051-162-306-11CERAMIC0.01uF20%16V C7061-164-159-21CE

41、RAMIC0.1uF50V C7071-126-947-11ELECT47uF20%35V C7081-162-306-11CERAMIC0.01uF20%16V C7091-162-306-11CERAMIC0.01uF20%16V C7101-162-306-11CERAMIC0.01uF20%16V C7111-126-964-11ELECT10uF20%50V C7121-104-905-11CAPACITOR0.22F5.5V C7131-162-306-11CERAMIC0.01uF20%16V C7141-126-959-11ELECT0.47uF20%50V C7171-162

42、-286-21CERAMIC220PF10%50V D7018-719-991-33DIODE 1SS133T-77 D7028-719-991-33DIODE 1SS133T-77 D7038-719-991-33DIODE 1SS133T-77 D7058-719-991-33DIODE 1SS133T-77 D7078-719-991-33DIODE 1SS133T-77 FL7011-517-177-21INDICATOR TUBE, FLUORESCENT IC7018-759-495-96IC uPD780205GF-040-3BA IC7028-749-014-66IC NJL6

43、4H400A Q7018-729-119-78TRANSISTOR 2SC2785-HFE R7011-249-437-11CARBON47K5%1/4W R7031-249-429-11CARBON10K5%1/4W R7041-249-419-11CARBON1.5K5%1/4WF R7051-249-419-11CARBON1.5K5%1/4WF R7071-249-441-11CARBON100K5%1/4W R7081-249-441-11CARBON100K5%1/4W R7091-247-807-31CARBON1005%1/4W R7101-249-406-11CARBON12

44、05%1/4WF R7111-249-406-11CARBON1205%1/4WF R7121-249-407-11CARBON1505%1/4WF R7131-249-408-11CARBON1805%1/4WF R7141-247-815-91CARBON2205%1/4W R7151-249-410-11CARBON2705%1/4WF R7161-249-411-11CARBON3305%1/4W R7171-249-413-11CARBON4705%1/4WF R7181-249-414-11CARBON5605%1/4WF R7191-249-416-11CARBON8205%1/

45、4WF R7201-249-418-11CARBON1.2K5%1/4WF R7211-249-421-11CARBON2.2K5%1/4WF R7221-249-424-11CARBON3.9K5%1/4WF R7241-247-807-31CARBON1005%1/4W R7251-249-406-11CARBON1205%1/4WF R7261-249-406-11CARBON1205%1/4WF R7271-249-407-11CARBON1505%1/4WF R7281-249-408-11CARBON1805%1/4WF R7291-247-815-91CARBON2205%1/4

46、W R7301-249-410-11CARBON2705%1/4WF R7311-249-411-11CARBON3305%1/4W R7321-249-413-11CARBON4705%1/4WF 0R7331-249-414-11CARBON5605%1/4WF R7341-249-416-11CARBON8205%1/4WF R7351-249-418-11CARBON1.2K5%1/4WF R7361-247-807-31CARBON1005%1/4W R7381-249-401-11CARBON475%1/4WF R7391-249-417-11CARBON1K5%1/4WF R74

47、01-247-863-91CARBON22K5%1/4W R7411-247-895-91CARBON470K5%1/4W R7421-249-413-11CARBON4705%1/4WF R7431-249-413-11CARBON4705%1/4WF R7441-249-413-11CARBON4705%1/4WF R7451-249-413-11CARBON4705%1/4WF R7461-249-413-11CARBON4705%1/4WF 14 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark DISPLAYENCODER R7471-249-413-11CARBON4705%1/4WF R7491-249-413-11CARBON4705%1/4WF R7501-249-413-11CARBON4