Sony-STRV424-rec-sm维修电路原理图.pdf

STR-DE435/DE535/SE491/V424/V525 US Model STR-DE435/DE535/SE491 Canadian Model STR-DE435/DE535 AEP Model STR-DE435 E Model STR-DE435/DE535 Australian Model STR-DE435/DE535 Chinese Model STR-V424/V525 SERVICE MANUAL FM STEREO FM-AM RECEIVER Continued on next page SPECIFICATIONS Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol a “AC-3” and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation. Sony Corporation Home Audio Company Published by Sony Engineering Corporation 9-928-848-12 2003E16-1 2003.05 POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 8-ohm load, both channels driven, from 20a) 20,000 Hz rated 100 watts per channel minimum RMS power, with no more than 0.09%b) total harmonic distortion from 250 milliwatts to rated output. STR-SE491: a) 40Hz b) 0.5% Amplifier section Stereo modeSTR-DE535/DE435: (8 at 20Hz 20kH less than 0.09% total harmonic distortion) 100W + 100W STR-SE491: (8 at 40Hz 20kHz less than 0.5% total harmonic distortion) 100W + 100W Surround mode andSTR-DE535/435: 5.1CH/DVD mode(8 at 1kHz, THD 0.8%) Front: 100W/ch Center*: (Pro Logic Mode) 100W Rear*: 100W/ch STR-SE491: (8 at 1kHz, THD 0.5%) Front: 100W/ch Center*: 100W Rear*: 100W/ch Frequency responsePHONO: RIAA equalization curve 0.5dB (except STR-DE435) TV/SAT, CD, MD/ TAPE, VIDEO, 5.1CH/ DVD 10Hz 50kHz 1dB Inputs SensitivityImpedanceS/N PHONO (except STR-4mV 50 86dB DE435) kilohms CD, 5.1CH/ DVD, MD/TAPE,250mV 50 96dB TV/SAT, kilohms VIDEO OutputsMD/TAPE REC OUT: Voltage: 250mV, Impedance: 10kilohms VIDEO AUDIO OUT: Voltage: 250mV, Impedance: 10kilohms WOOFER: Voltage: 2V Impedance: 1kilohms PHONES: Accepts low and high impedance headphones MutingFull mute BASS BOOST+8dB at 70Hz TONE8dB at 100Hz and 10kHz Tuner section FM Stereo, FM/AM superheterodyne tuner FM tuner section Tuning range87.5 108.0MHz Antenna terminals75, unbalanced Intermediate frequency10.7MHz SensitivityMono: 18.3dBf, 4.5V Stereo: 38.3dBf, 45V Usable sensitivity11.2dBf, 2V (IHF) S/NMono: 76dB Stereo: 70dB HarmonicMono: 0.3% distortion at 1kHzStereo: 0.5% Separation45dB at 1kHz Frequency response30Hz 15kHz dB Selectivity60dB at 400kHz +0.5 2 Photo: STR-DE535 Ver 1.1 2003. 05 RadioFans.CN 收音机爱 好者资料库 2 AM tuner section Tuning range10kHz interval* 530 1,710kHz 9kHz interval 531 1,710kHz AntennaLoop antenna Intermediate frequency450kHz Usable sensitivity50dB/m (at 1,000kHz) S/N54dB (at 50mV/m) Harmonic distortion0.5% (50mV/m, 400Hz) SelectivityAt 10kHz: 40dB At 9kHz: 35dB * You can change the AM tuning interval between 9kHz and 10kHz. After tuning in any AM station, turn off the receiver. Hold down the PRESET TUNING+ buttoh and press the 1/u (power) button. All preset stations will be erased when you change the interval. To reset the interval, repeat the procedure. VIDEO section (except STR-SE491) InputsVIDEO, TV/SAT, 5.1CH/DVD: 1Vp-p 75 OutputsVIDEO, MONITOR: 1Vp-p 75 General SystemTuner section: PLL quartz-locked digital synthesizer system Preamplifier section: Low-noise NF type equalizer Power amplifier section: Pure-complementary SEPP Power requirements120V AC, 60Hz Power consumption220W AC outletsSTR-DE535/SE491: 2 switched, total 120W/1A Max STR-DE435: 1 switched, total 120W/1A Max Dimensions430 157 366 mm (17 61/8 145/8 inches) Mass (Aporox.)STR-DE535: 11.1kg (24 lb 6 oz) STR-DE435: 11.0kg (24 lb 3 oz) STR-DE491: 11.2kg (24 lb 9 oz) Supplid accessoriesFM wire antenna (1) AM loop antenna (1) Remote commander (remote) (1) LR6 (size - AA) batteries (3) (STR-DE535 only) R6 (size - AA) batteries (2) (STR-DE435/SE491 only) * Depending on the sound field setting and the source, there may be no sound output. Design and specifications are subject to change without notice. Parts No. MODEL IDENTIFICATION BACK PANEL MODELPARTS No. DE535: US model4-216-927-0 DE535: Canadian model4-216-927-1 DE535: Australian model4-216-927-2 DE535: E model4-216-927-3 DE535: Malaysia, Singapore model4-216-927-4 V525: Chinese model4-216-927-5 DE435: US model4-217-181-0 DE435: Canadian model4-217-181-1 DE435: Australian model4-217-181-2 DE435: Malaysia, Singapore model4-217-181-3 V424: Chinese model4-217-181-4 DE435: AEP model4-217-181-5 DE435: East European, CIS model4-217-181-6 SE491: US model4-217-181-7 RadioFans.CN 收音机爱 好者资料库 3 SAFETY-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. After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. 1.A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2.A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3.Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) SAFETY CHECK-OUT To Exposed Metal Parts on Set 0.15 F 1.5 k AC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. ATTENTION 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 SUPPMENTS PUBLIS PAR SONY. TABLE OF CONTENTS 1. GENETAL 4 2. TEST MODE 6 3. DIAGRAMS 3-1.Circuit Boards Location 7 3-2.Block Diagrams 9 Main Section 9 Power Section 11 3-3.Printed Wiring Board Input Section 13 3-4.Schematic Diagram Input Section 15 3-5.Printed Wiring Board Surround Section 17 3-6.Schematic Diagram Surround Section 19 3-7.Printed Wiring Board Display Section 21 3-8.Schematic Diagram Display Section 23 3-9.Printed Wiring Board Key Section 25 3-10. Schematic Diagram Key Section 27 3-11. Printed Wiring Board Rear Amp Section 29 3-12. Schematic Diagram Rear Amp Section 31 3-13. Printed Wiring Board Power Amp Section 33 3-14. Schematic Diagram Power Amp Section 35 3-15. IC Pin Function Description 37 3-16. IC Block Diagrams39 4. EXPLODEO VIEWS 4-1.Front Panel Section 40 4-2.Chassis Section 42 5. ELECTRICAL PARTS LIST44 4 SECTION 1 GENETAL 11/u (POWER) button 2TUNING +, button 3DIMMER button 4DISPLAY button 5PRESET/PTY SELECT +, buttons (DE435), PRESET TUNING +, buttons (DE535) 6RDS PTY button (DE435 only) 7RDS EON button (DE435), AM button (DE535) 8MD/TAPE button 95.1CH/DVD button !SUR button !SOUND FIELD ON/OFF, MODE +, buttons !SET UP button !MASTER VOLUME control !TONE button !BASS BOOST button !MUTING button !BALANCE control !NAME button !ENTER button MENU , +, buttons BASS/TREBLE button PHONO button (DE535 only) TV/LD button (DE435), TV/SAT button (DE535) TUNER button VIDEO button CD button FM/AM button (DE435), FM button (DE535) FM MODE button MEMORY button #DIRECT button #Number buttons #SHIFT button #PHONES jack #SPEAKERS A. B switch Front Panel 12 3456 78 9!? !? !?!? !? !? !?!?!?#?#?#? #? #? ? ? !? 5 1ANTENNA (FM/AM) 25.1CH/DVD 3MONITOR 4WOOFER 5SPEAKER (REAR) 6SPEAKER (CENTER) 7AC power cord 8AC OUTLET 9SPEAKER (FRONT) !IMPEDANCE SELECTOR (DE535 only) !S-LINK (DE535 only) !VIDEO !TV/LD (DE435), TV/SAT (DE535) !MD/TAPE !CD !PHONO (DE535 only) !y SIGNAL GND (DE535 only) Rear Panel 123456 89!?!?!?!?!?!?!?!?7 6 SECTION 2 TEST MODE SOFTWARE VERSION DISPLAY MODE * The software version is displayed. * Procedure: While depressing the MD/TAPE and the DIRECT buttons simultaneously, press the power 1/u button to turn on the main power. The model name, destination and the software version are displayed. FLUORESCENT INDICATOR TUBE TEST MODE * All fluorescent segments are tested. When this test is activated, all segments turn on at the same time, then each segment turns on one after another. * Procedure: While depressing the TV/SAT and the DIRECT buttons simultaneously, press the power 1/u button to turn on the main power. 1.All segments turn on. VIDEO, TV/SAT, MD/TAPE, CD, TUNER and PHONO LED turn on. 2.Press the VIDEO button, confirm display 5.1CH/DVD, SUR, BASS/TREBLE, SET UP and NAME LED turn on. 3.Press the VIDEO button, confirm display TONE, BASS BOOST and MUTING LED turn on. 4.Press the VIDEO button, All segments turn off. 5.Every pressing of the VIDEO button turns on each segment one after another in the following order. (Not only the VIDEO button, but also the other buttons sach as TV/SAT, MD/TAPE, CD, TUNER, PHONO, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 can be used.) FACTORY SET MODE * All preset contents are reset to the default setting. * Procedure: While depressing the VIDEO and the DIRECT buttons simultaneously, press the power 1/u button to turn on the main power. The message FACTORY appears and the present contents are reset to the default values. ALL CLEAR MODE * All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedure: While depressing the TUNER and the MD/TAPE buttons simultaneously, press the power 1/u button to turn on the main power. Alternatively, press 1/u more than 4S. The message ALL CLEAR appears and initialization is performed. SURROUND CLEAR MODE * The preset sound field is cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedure: While depressing the SOUND FIELD ON/OFF button, press the power 1/u button to turn on the main power. The message SUR CLEAR appears and initialization is performed. AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE * Either the 9 kHz step or 10 kHz step can be selected for the AM channel step. * Procedure: Set the FUNCTION to AM. Turn off the main power. While depressing the TUNING+ button or the PRESET+ button, press the power 1/u button to turn on the main power. Either the message AM 9k STEP or AM 10k STEP appears. Select the desired step. * For US/Canadian/E model only STR-DE435/DE535/SE491/V424/V525 SECTIION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION STANDBY board REAR AMP board P.AMP board SPK SELECT board HEADPHONE board DISPLAY board KEY board VOL board BALANCE board BRIDGE-A board BRIDGE-B board INPUT board SURR board REAR SPK board VOLTAGE SELECTOR board (DE 535 : E MODEL) 7 8 For schematic diagrams. Note: All capacitors 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. %: indicates tolerance. : internal component. 2 : nonflammable resistor. 1 : fusible resistor. C : panel designation. 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 Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. Signal path. F: FM J: CD g : VIDEO I : PHONO Abbreviation CND: Canadian model AUS: Australian model CH: Chinese model MY: Malaysia model SP: Singapore model THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this necessary note is printed in each block.) Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Note: Les composants identifis par une marque ! sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi. Waveform DISPLAY SECTION 1 IC100 ! (X1) 2 IC1001 ! (X IN) 5MHz 7.28MHz 4.3Vp-p 3.3Vp-p EA: Saudi Arabia model EE: East European model For printed wiring boards. Note: X : parts extracted from the component side. : Through hole. : internal component. b : Pattern from the side which enables seeing. INPUT SECTION 3 IC230 ! 4.33MHz 2.8Vp-p C B These are omitted. E Q B These are omitted. CE STR-DE435/DE535/SE491/V424/V525 3-2. BLOCK DIAGRAMS MAIN SECTION L 24 IF DATA FM AM FM 75 AM DO ASTOP TMUTE STEREO DATA CLK CE L OUT R OUT TUNER UNIT DO AUTO STOP TMUTE STEREO S DATA S CLK S LAT R CH : FM : CD (ANALOG) Signal Path RCH is omitted PHONO LCD J201 LINPUT LOUT PUT J202 LFRONT LREAR J204 WOOFER 5.1 INPUT TAPE/MD M OUT10 J281 MONITOR J208 5.1 IN IN VIDEO 1 OUTOUT OUT V23 OUT5 V312 V11 14VEE 8VCC 13SW1 2SW2 4SW2 11M 32 VIDEO SELECT IC281 -5V REG IC280 -15V +5V : VIDEO 28 30 29 26 22 25 4 11 8 CE 13 CLK 15 DI 14 AUDIO SELECT IC204 MUTE Q405 S LAT S CLK S DATA CONTROL CE 45 CLK 47 DATA 46 D LAT S CLK S DATA 57 LINE AMP IC202 9 L OUT S OUT C OUT 41 39 38 MATRIX DECODER IC301 DOLBY PROLOGIC 11 13 57 EQ AMP IC201 20k L.P.F ADM 5k/7k L.P.F VOL/ MUTE DEC CE 4 CLK 2 DI 3 D LAT S CLK S DATA 25 23 PROCESSOR IC302 SURROUND SL OUT L OUT MUTE SW Q421,422 5 6 7 31 MUTE Q408 57 MUTE Q409 IC400 IC403 IC402 L.P.F MUTE Q407 13 15 14 11 12 BASS TREBLE TONE CONTROL IC401 LEVEL SHIFT STB 10 CLK 8 DI 9 T LAT S CLK S DATA BOOST DET Q401,402 RY401 RELAY DRIVE Q403 LINE AMP RV401 VOLUME RV402 BALANCE L C W SL A POWER SECTION (Page 11) M UP DOWN S12 SYSTEM CONTROL IC100(1/2) S23 V MUTE4 16 21 AUTO STOP 23 STEREO 22 TUNER MUTE S DATA S CLK S LAT DO AUTO STOP STEREO TMUTE 19 S DATA 18 S CLOCK 20 S LATCH 9 D LATCH 17 T LATCH D LAT T LAT 52 VOL + 51 VOL- 3 2 8 7 VOL MOTOR IC102 DOWN 54 S MUTE 49 BASS BOOST 41 DIRECT PASS : PHONO CENTER LTV L J203 VIDEO INPUT OUTPUT LINPUT 57 LINE AMP IC203 UP DE535 ONLY SIGNAL DET OUT 21 24 TUNER PHONO CD TAPE REC OUT TV/LD VIDEO OUT VIDEO IN COM 42 16 RDS IC230 1314 X230 4.332MHz DE435(CE)ONLY COM COM 14 FCC FCL 18 FCLS 20 DC CUT 9 Q371 57 IC403 6 VIR CNTL 38 RDS CLK 15 RDS DAT 28 SIGNAL TV/LD 9 10 STR-DE435/DE535/SE491/V424/V525 POWER SECTION RELAY DRIVE Q513 LIMITER Q504 14 5 15 6 1 2 3 VEE VCC IN MUT +VE NF -VE 13VCC POWER AMP(L) IC501 L +B -B LIMITER Q505 BOOSTER Q506 BOOSTER Q507 CUR DET Q508 PROTECTOR Q509,510 Q511 LIMITER Q604 2 7 6 5 VSS IN +VE NF -VE 9VCC POWER AMP(C/W) IC601 C +B -B LIMITER Q605 BOOSTER Q606 BOOSTER Q607 CUR DET Q608 PROTECTOR Q609,610 Q611 LIMITER Q704 MUTE Q691,692 14 5 15 6 1 2 3 V