Sony STR-W550 Receiver Service Manual 电路图.pdf

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1、STR-W550 Canadian Model AEP Model UK Model E Model Australian Model Tourist Model SERVICE MANUAL FM STEREO/FM-AM RECEIVER MICROFILM STR-W550 is RECEIVER section in MHC-W550 SPECIFICATIONS Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range87.5-108.0MHz (EXCEPT JE) 76.0

2、-108.0MHz (JE) AerialFM lead aerial Aerial terminals75 ohm unbalanced Intermediate frequency 10.7MHz AM tuner section Tuning range(Canadian,Thai,Argentine,Australian,E2) AM: 530-1,710kHz (with interval set at 10kHz) 531-1,710kHz (with interval set at 9kHz) (EXCEPT Canadian,Thai,Argentine, Australian

3、,E2) MW: 531-1,602kHz (with interval set at 9kHz) (AEP,UK) LW: 153-279kHz (with interval set at 3kHz) (EXCEPT AEP,UK,Canadian,Thai, Argentine,Australian,E2) SW: 5.95-17.90MHz (with interval set at 9kHz) Intermediate frequency 450kHz AerialAM loop aerial, External aerial terminal Video section Inputs

4、AV INPUT VIDEO (phone jack) : 1 Vp-p, 75 ohms MONITOR OUT (phone jack) : 1 Vp-p, 75 ohms Amplifier section DIN power output80W +80W (6 ohms at 1kHz, DIN) Music power output190W + 190W (6 ohms at 1kHz, 10%, THD) InputsMD/VIDEO 1 IN (phono jacks) : voltage 250 mV, impedance 47 kilo ohms AV INPUT AUDIO

5、 (phone jacks) : voltage 250 mV, impedance 47 kilo ohms MIX/MIC (phone jack) :sensitivity 1mV, impedance 10 kilo ohms OutputsMD/VIDEO 1 OUT (phone jacks) : voltage 250 mV, impedance 1 kilo ohm PHONES (stereo phone jack) : accepts headphone of 8 ohms or more. SPEAKER : accepts impedance of 6 to 16 oh

6、ms SUPER WOOFER : Voltage 1 V, impedance 1 kilo ohms Continued on next page E2: Tuner sections SW band do not exist. RadioFans.CN 收音机爱 好者资料库 2 Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tentalum capacitor may be damaged by heat. SAF

7、ETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! 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. AT

8、TENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PISES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPME

9、NTS PUBLIS PAR SONY. MODEL IDENTIFICATION Model Number Label CND : AC 120V AC, 60Hz 170W AUS : AC 240V AC, 50/60Hz 170W TH : AC 220V AC, 50/60Hz 170W AEP, EE, CIS : AC 220-230V 50/60Hz 170W UK : AC 220-240V 50/60Hz 170W OTHER MODEL : AC 110-120V, 220-240V selectable 50/60Hz 170W MODEL IDENTIFICATION

10、 MODEL NO.STR-W550 FM STEREO/FM-AM RECEIVER Abbreviations TH : ThaiSP: SingaporeAR: Argentine HK : HongKongEA3 : Saudi ArabiaAUS : Australian TW : TaiwanEA4 : IsraelMY: Malaysia IA: IndonesianJE: TouristCND : Canadian EE: East European E2: Tuner sections SW band do not exist. E3: Tuner sections SW b

11、and exist. TABLE OF CONTENTS 1.GENERAL 3 2.TEST MODE 5 3.ELECTRICAL ADJUSTMENTS 6 4.DIAGRAMS 4-1.Circuit Boards Location 8 4-2.Printed Wiring Board Tuner Section 9 4-3.Schematic Diagram Tuner Section 11 4-4.Printed Wiring Board Panel Section 14 4-5.Schematic Diagram Panel Section 17 4-6.Printed Wiri

12、ng Board Main Section 20 4-7.Schematic Diagram Main Section 23 4-8.Printed Wiring Board and Schematic Diagram Power Section 27 4-9.IC Pin Function 31 4-10. IC Block Diagrams 33 5.EXPLODED VIEWS 5-1.Main Section 35 5-2.Panel Section 36 6.ELECTRICAL PARTS LIST 37 General Power requirements120V AC, 60

13、Hz (Canadian) 240V AC, 50/60 Hz (Australian) 220V AC, 50/60 Hz (Thai) 220 - 230V AC, 50/60 Hz (AEP,East European,CIS) 220 - 240V AC, 50/60 Hz (UK) 110 - 120V/220-240V AC adjustable, 50/60 Hz (OTHER MODEL) Power consumption170 watts Dimensions (w / h / d)Approx. 280 205 336 mm MassApprox. 7.0 kg Desi

14、gn and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 GENERAL FRONT PANEL 1KARAOKE PON/MPX button 2SURROUND button 3EFFECT ON/OFF button 4MUSIC button 5MOVIE button 6GAME button 7P FILE button 8MEMO button 9DBFB button !VOLUME !GROOVE button !TUNER BAND butt

15、on !MONO/ST button !FUNCTION button !MIC LEVEL !MIX MIC jack !PHONES jack !EDIT button !PLAY MODE button 1/ALL DISCS button REPEAT button HIGH FREQ button ENTER/NEXT button MULTI JOG STATION dial LOW FREQ button MEMORY button TUNING MODE button FLASH button LOOP button #WAVE button #AV INPUT jack #C

16、LOCK TIMER SET button #TIMER SELECT button #RDS button (AEP, UK MODEL) #DISPLAY button #POWER button RadioFans.CN 收音机爱 好者资料库 4 BACK PANEL #ANTENNA terminal #SYSTEM CONTROL #MD/VIDEO jack $FRONT SPEAKER terminal $SUPER WOOFER jack $MONITOR OUT jack $VOLTAGE SELECTOR switch (E, Saudi Arabia, Singapore

17、, Malaysia, Hong Kong, Taiwan, Indonesian, Argentine, Tourist MODEL) Photo : E MODEL SECTION 3 ELECTRICAL ADJUSTMENTS 5 6 7 FL DISPLAY/KEY LED TEST MODE Press the REPEAT, ENTER/NEXT and SURROUND buttons simultaneously. 1.All FL segments and all LEDs turn on. 2.To access the microprocessor informatio

18、n, press the P FILE key. Each pressing of the P FILE key advances the display on the FL tube in the following sequence. 3. To check the encoder, press the MUSIC key. The following display appears on the FL tube. K0J0V0 The number after K indicates the number of times that the key is pressed. The key

19、 which was pressed in the past, is not counted. The key which is pressed hereafter is counted. Pressing any key increases the number after K. The number after J indicates the number of rotations that the JOG dial is rotated. Turning the JOG dial clockwise increases the number after J. Turning the JO

20、G dial counter-clockwise decreases the number after J. The number after V indicates the number of rotations that the VOLUME dial is rotated. Turning the VOLUME dial clockwise increases the number after V. Turning the VOLUME dial counter- clockwise decreases the number after V. To exit this mode, per

21、form the Cold Reset (reset clearing memory) as described below. GENERAL TEST MODE (INCLUDING AMPLIFIER AND TUNER) Press the REPEAT, ENTER/NEXT and CLOCK TIMER SET buttons simultaneously while the main power is on. 1.Sound volume display segment starts blinking. 2.The tuning enters the PRESET mode. 3

22、.Rotating the VOLUME control clockwise increases the volume level to maximum. Rotating the VOLUME control counter-clockwise decreases the volume level to minimum. 4.Pressing the MUSIC key decreases the equalizer curve to minimum and EQ CHECK appears on the display. Pressing the MOVIE key increases t

23、he equalizer curve to maximum. Pressing the GAME key makes the equalizer curve flat. 5.Pressing any of the DBFB, GROOVE or SURROUND key disappears EQ CHECK on the display. To exit this mode, perform the Cold Reset (reset clearing memory) as described below. SECTION 2 TEST MODE AGING MODE 1.CD aging

24、mode To execute the CD aging, set the three discs to the CD tray and set the function to CD. REPEAT, ENTER/NEXT and LOOP buttons simultaneously. The CD aging mode starts and the disc calendar starts blinking. 2.Tape aging mode To execute the tape aging, set the two tapes to the tape A and B drives.

25、Set the function to TAPE. Press the REPEAT, ENTER/ NEXT and LOOP buttons simultaneously. Press the A forward key to start the tape aging mode. AGING appears on the display. CD SERVICE MODE Turn on the main power. Press the REPEAT, ENTER/NEXT and KARAOKE PON/MPX buttons simultaneously. VACS toggles b

26、etween ON and OFF. VACS LEVEL DISPLAY Turn on the main power. Press the EDIT, ENTER/NEXT and KARAOKE PON/MPX buttons simultaneously. VACS level appears on the display. CD SHIP MODE Turn on the main power. Press the PLAY MODE and POWER buttons simultaneously. The main power is turned off and LOCK app

27、ears on the display. TUNER STEP CHANGE Turn on the main power. Set the function to TUNER. Select MW band from the present tuning. Turn off the main power. Press the ENTER/NEXT and POWER buttons simultaneously. The main power is turned on and the changed step appears on the display. MD/VIDEO 1 FUNCTI

28、ON CHANGE Press the FUNCTION and POWER buttons simultaneously while the main power is on. When the function is set to VIDEO 1, the function is changed to MD and MD appears on the display. When the function is set to MD, the function is changed to VIDEO 1 and VIDEO 1 appears on the display. COLD RESE

29、T (Reset which clears memory.) Press the REPEAT, ENTER/NEXT and DISPLAY buttons simultaneously at any time. The system is reset while clearing memory. HOT RESET (Reset which does not clear memory.) Press the REPEAT, ENTER/NEXT and TIMER SELECT buttons simultaneously at any time. The system is reset

30、without clearing memory. (AEP, UK, East European, CIS model) Note: As a front-end (FE1) is difficult to repair if faulty, replace it with new one. AM Section Adjustment Setting: AM Tuned Level Adjustment Band: AM or MW Procedure: 1.Set the output of SSG so that the input level of the set becomes 55

31、dB. 2.Tune the set to 999 kHz. 3.Adjust RV41 to the point (moment) when the TUNED indicator will change from going off to going on. Adjustment Location : TCB board FM Section Adjustment Note: This adjustment should be performed after the AM Tuned Level Adjustment due to the same adjustment element.

32、Setting: AM RF SSG loop antenna set loop antenna (Supplied accessories) 60 cm AM ANTENNA terminal (TM1) 30% amplitude modulation by 400 Hz signal Field strength dB (V/m) =SSG output level dB (V/m) 26 dB. FM Tuned Level Adjustment Band: FM Procedure: 1.Supply a 25 dB 98 MHz signal from the ANTENNA te

33、rminal. 2.Tune the set to 98 MHz. 3.If the TUNED indicator does not light, adjust RV42 to the point (moment) when the TUNED indicator will change from going off to going on. Adjustment Location: TCB board Adjustment Location: TCB BOARD (Component Side) RV42 IC41 RV41 TM1 FE1 Carrier frequency : 98 M

34、Hz Modulation : AUDIO 1 kH, 75 kHz deviation (100%) FM ANTENNA terminal (TM1) (75 open) 75 coaxial set FM RF stereo signal generator (East European, CIS model) FM Polar Adjustment Procedure : 1.Set the modulation of FM RF SSG to AUDIO 1 kHz, 10 kHz deviation according to Connection 1. 2.Tune the set

35、 to 69 MHZ. 3.Adjust the RV1702 so that the reading of frequency counter connected to TP1702 becomes within 31.25 kHz 0.05 kHz.(VCO adjustment) 4.Then record the reading of the level meter connected to TP1701 5.Set the modulation of FM RF SSG to AUDIO 31.25 kHz, 10 kHz deviation according to Connect

36、ion 2. 6.Tune the set to 69 MHz. 7.Set the CT1701 to be mechanical center. 8.Adjust the L1701 so that the reading of the level meter connected to TP1701 become maximum. Then adjust the CT1701 so that the reading of the level meter connected to TP1701 becomes maximum. (SUB CARRIER PEAK Adjustment) 9.

37、Adjust the RV1701 so that the level at the moment becomes 14dB higher value than the level recorded in step 4. (SUB CARRIER LEVEL Adjustment) FM ANTENNA terminal (75 ) 75 coaxial set FM RF SSG Connection 1: Carrier frequency : 69 MHz Output level: 1mV (60dB) (at 75 open) Modulation: AUDIO 1 kHZ, 10k

38、Hz deviation FM ANTENNA terminal (75 ) 75 coaxial set FM RF SSG AF OSC Audio 31.25 kHz external modulation terminal Connection 2: Carrier frequency : 69 MHz Output level: 1mV (60 dB) (at 75 open) Modulation: AUDIO 31.25 kHZ, 10 kHz deviation (EXTERNAL MODULATION) Adjustment Location : (East European

39、, CIS model) TCB BOARD (Component Side) RV41 IC1701 RV42 RV1701 CT1701 TP1702 (VCO) (FILTER) TP1701 TM1 FE1 + FREQUENCY COUNTER + LEVEL METER IC41 L1701 RV1702 RV41 AM tuned level Adjustment RV1701, TP1701 Sub carrier level Adjustment RV1702, TP1702 VCO Adjustment RV42 FM tuned level Adjustment CT17

40、01, L1701, TP1701 Sub carrier peak Adjustment STR microprocessor version number HCD microprocessor version number VCD microprocessor version number (VCD model only) Model name Destination STR-W550 4-1.CIRCUIT BOARDS LOCATION SEC BOARD PANEL BOARD AVIN BOARD JOG BOARD MIC ECHO BOARD AMP BOARD MAIN BO

41、ARD TCB BOARD (AEP, UK, EE, CIS MODEL) ENCAPSULATED COMPONENT (EXCEPT AEP, UK, EE, CIS MODEL) DUMMY BOARD PRI BOARD 4-2.PRINTED WIRING BOARD TUNER SECTION (AEP, UK) 12 A B C D E F G H I J 345612 A B C D E F G H I J 3456 (East European, CIS) Note: :parts extracted from the component side. :parts on t

42、he side which is seen. Ref. No.Location D21G-2 D41G-3 D42H-5 D1751I-4 IC21G-2 IC41E-4 IC1751I-2 IC1752I-4 Q1F-2 Q2F-2 Q3E-3 Q4E-2 Q5E-3 Q9D-2 Q11C-4 Q12B-4 Q13B-3 Q14B-3 Semiconductor Location Note: :parts extracted from the component side. :parts on the side which is seen. Ref. No.Location D21G-2 D

43、41G-4 D42H-5 D43H-5 D1701J-4 D1702J-4 D1703H-4 D1704J-4 IC21G-3 IC41E-5 IC1701I-3 IC1702I-3 Q1F-3 Q2F-3 Q4E-3 Q5E-3 Q9D-3 Q11C-5 Q12B-5 Q13B-4 Q14B-4 Q1701I-3 Q1702I-4 Q1703J-4 Semiconductor Location 8 9 10 SECTION 4 DIAGRAMS 31 4-9.IC PIN FUNCTION IC501 TMP87CM75F-6608 (DISPLAY CONTROL) Pin No. 1 2

44、 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 41 42 43 44 45 46 47 48 49 50 I/O O I O O O O I I O I I O I I I I I I I I I I/O I/O O O O O O O O I I I I I I I I Description Not used POWER SUPPLY FOR VFT DRIVER Transfer clock output serial

45、data Serial data input Serial data output Chip enable output Latch output to IC504 H : D542, D543 ON Stereo signal input Tuned signal input Power supply (Ground) Oscillator connection terminal (8MHz) Oscillator connection terminal (8MHz) Reset signal input terminal Oscillator connection terminal (32

46、.768kHz) Oscillator connection terminal (32.768kHz) Not used (Ground) AC Power supply off RDS DATA input (European model only) RDS clock input (European model only) SIRCS signal input JOG dial encoder input Volum encoder input Volum encoder input JOG dial encoder input Not used 12C clock I/O 12C dat

47、a I/O Not used Power supply (5V) Power supply (Ground) Latch output to IC105 Latch output to IC2002 Mute output to transistorL : Mute ON DBFB level control outputL : DBFB HIGH Latch output to IC6003 H : Key con ON L : SP relay ON Not used Key data input (A/D converter) Key data input (A/D converter)

48、 Key data input (A/D converter) Spectrum analyzer signal input Spectrum analyzer signal input Spectrum analyzer signal input Spectrum analyzer signal input Input for model select Power supply for analog (Ground) Power supply (+5V) Power supply (Ground) Pin Name NC VG COM CLK ST DATA IN COM DATA ST C

49、E LED LAT POWER ON/OFF STEREO TUNED Vss X OUT X IN RESET XT OUT XT IN GND BACK UP RDS DATA RDS CLK SIRCS IN JOG IN B VOL IN B VOL IN A JOG IN A AUB IN 12C CLK 12C DATA AUB OUT VDD Vss EQ LAT VR LAT TA MUTE VIDEO MD KEY CON LAT KEY CON ON/OFF POWER ON/OFF P LOG RELAY KEY IN 0 KEY IN 1 KEY IN 2 SPEANA 0 SPEANA 1 SPEANA 2 SPEANA 3 SUFFIX VASS VAREF VDD 32 Pin No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 8