Sony Strdb930 电路图.pdf

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1、STR-DB830/DB930/V929X US Model STR-DB930/DB830 Canadian Model STR-DB930 AEP Model STR-DB930/DB830 E Model Australian Model STR-DB930 Chinese Model STR-V929X SERVICE MANUAL FM STEREO FM-AM RECEIVER Continued on next page SPECIFICATIONS Manufactured under license from Dolby Laboratories Licensing Corp

2、oration. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. Ver 1.1 2002. 02 Sony Corporation Home Audio Company Published by Sony Engineering Corporation 9-928-896-12 2002B1600-1 2002.02 AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION

3、 : With 8 loads, both channels driven, from 20 - 20,000 Hz ; rated 110 W (STR-DB930) and 100 W (STR-DB830) per channel minimum RMS power, with no more than 0.05 % total harmonic distortion from 250 mW to rated output (USA model only). Amplifier section POWER OUTPUT Stereo mode North American model (

4、8 20 Hz - 20 kHz, THD 0.05 %) STR-DB930 : 110 W + 110 W STR-DB830 : 100 W + 100 W (4 20 Hz - 20 kHz, THD 0.05 %) STR-DB930 : 100 W + 100 W STR-DB830 : 90 W + 90 W Other model 100 W + 100 W (8 DIN 1kHz) 100 W + 100 W (4 DIN 1kHz) 90 W + 90 W (8 20Hz-20kHz,thd0.05%) 90 W + 90 W (4 20Hz-20kHz,thd0.05%)

5、 Surround mode North American model (8 20 Hz - 20 kHz, THD 0.09 %) STR-DB930 : Front: 110 W + 110 W Centera): 110 W Reara): 110 W + 110 W STR-DB830 : Front: 100 W + 100 W Centera): 100 W Reara): 100 W + 100 W (4 20 Hz - 20 kHz, THD 0.09 %) STR-DB930 : Front: 100 W + 100 W Centera): 100 W Reara): 100

6、 W + 100 W STR-DB830 : Front: 90 W + 90 W Centera): 90 W Reara): 90 W + 90 W Other model (8 20 Hz - 20 kHz, THD 0.09 %) Front: 90 W + 90 W Centera): 90 W Reara): 90 W + 90 W (4 20 Hz - 20 kHz, THD 0.05 %) Front: 90 W + 90 W Centera): 90 W Reara): 90 W + 90 W a) Depending on the sound field settings

7、and the source, there may be no sound output. Dynamic power output STR-DB930 : 165 W + 165 W, 8 250 W + 250 W, 4 STR-DB830 : 155 W + 155 W, 8 240 W + 240 W, 4 Frequency response PHONO : RIAA equalization curve 0.5 dB CD, TAPE, MD/DAT, TAPE/MD, DVD/LD, TV/SAT, VIDEO 1,2, andVIDEO3: 10 Hz - 50 kHz + 0

8、.5/-2 dB(with sound field, equalizer, and bass boost bypassed) Inputs(Analog) PHONO : Sensitivity : 2.5 mV Impedance : 50 k S/Nb): 86 dB(A, 2.5 mVc) Photo : STR-DB930 (BLACK model) RadioFans.CN 收音机爱 好者资料库 2 5.1CH INPUT, CD, DVD/LD, TAPE, MD/DAT, TAPE/MD, TV/SAT, VIDEO 1, 2, and VIDEO 3 : Sensitivity

9、 : 150 mV Impedance : 50 k S/Nb): 96 dB(A, 150 mVc) b) INPUT SHORT c) Weighted network, input level Input(Digital) DVD/LD (coaxial) : Sensitivity : - Impedance : 75 S/N: 100 dB(A, 20 kHz LPF) DVD/LD, TV/SAT, MD/DAT (Optical) Sensitivity : - Impedance : - S/N: 100 dB(A, 20 kHz LPF) OutputsTAPE, MD/DA

10、T, TAPE/MD, (REC OUT) ; VUDEO 1, 2 (AUDIO OUT) : Voltage: 150 mV Impedance: 10 k FRONT L/R, CENTER, REAR L/R, SUB WOOFER : Voltage: 2V Impedance: 1 k PHONES : Accepts low-and high-impedance headphones BASS BOOST+6 dB at 70 Hz Sampling Frequency48 kHz EQBASS: 100 Hz - 1.0 kHz(21 steps) MID: 500 Hz -

11、5.0 kHz(21 steps) TREBLE: 1.0 kHz - 10 kHz(21 steps) Gain levels: 10 dB, 1 dB step FM tuner section Tuning range87.5 - 108.0 Hz Antenna terminals 75 , unbalanced SensitivityMono : 18.3 dBf, 2.2 V/75 Stereo : 38.3 dBf, 22.5 V/75 Usable sensitivity 11.2 dBf, 1 V/75 S/NMono : 76 dB Stereo : 70 dB Harmo

12、nic distortion at 1 kHz Mono : 0.3 % Stereo : 0.5 % Separation45 dB at 1 kHz Frequency response30 Hz - 15 kHz +0.5/-2 dB Sencitivity60 dB at 400 kHz AM tuner section North American and E models With 10-kHz tuning scale : 530 - 1,710 kHzd) With 9-kHz tuning scale: 531 - 1,710 kHzd) Other models 531 -

13、 1,602 kHz AntennaLoop antenna Usable sensitivity 50 dB/m(at 1,000 kHz or 999 kHz) S/N54 dB(at 50 mV/m) Hermonic distortion 0.5 %(50 mV/m, 400 kHz) SelectivityAt 9 kHz: 35 dB At 10 kHz : 40 dB d) You can change the AM tuning scale to 9kHz. After tuning in any AM station, turn off the receiver. Hold

14、down the TUNING + button and press the 1/u button. All preset stations will be erased when you change the tuning scale. To reset the scale to 10 kHz, repeat the procedure. Video section InputsVideo: 1 Vp-p 75 S-video : Y : 1 Vp-p 75 C : 0.286 Vp-p 75 Outputs Video: 1 Vp-p 75 S-video : Y : 1 Vp-p 75

15、C : 0.286 Vp-p 75 General System Tuner section : PLL quarts-locked digital synthesizer system Preamplifier section : Low-noise NF type equalizer Power amplifier section : Pure-complementary SEPP Power requirements USA, Canadian models 120V AC, 60Hz Australian model 240V AC, 50Hz Other model 220 230V

16、 AC 50/60Hz Power consumption STR-DB930 Canadian:400 VA Other models :290 W STR-DB830 North American models : 280 W AC outlets North American models : 2 switched, total 120 W/1A Other models : 1 switched, max 100 W Dimensions 430 405 160.5 mm (17 16 63/8 in.) including projecting parts and controls

17、Mass(Approx.) 13 kg(28 lb 11oz) Supplied accessories FM wire antenna (1) AM loop antenna (1) Audio/video/control S connecting cord (1) CONTROL A1 connecting cord (1) FM antenna adapter (1) STR-DB930, V929X only Remote commander RM-LJ302 (remote) (1) LR6 (size-AA) alkaline batteries (3) STR-DB830 onl

18、y Remote commander RM-PP402 (remote) (1) LR6 (size-AA) batteries (2) Design and specifications are subject to change without notice. MODEL IDENTIFICATION BACK PANEL MODEL DB930:US model DB930:Canadian model DB930:Malaysia, Singapore models V929X DB930:Australian model DB930:AEP model DB830:US model

19、DB830:AEP model PARTS No. 4-217-716-0 4-217-716-1 4-217-716-2 4-217-716-3 4-217-716-4 4-217-716-5 4-217-716-6 4-217-716-7 PART NO. 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 AR

20、E 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. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES

21、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 SAFETY CHECK-OUT (US model only) After correcting the original service problem, perform the following

22、 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 me

23、tal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers). 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

24、. 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. T

25、he 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) Earth Ground AC voltmeter (0.75V) 1.5k0.15F Fig. A. Using an AC voltmeter to check AC leakage. To Exposed Metal Parts o

26、n Set 1. GENERAL 4 2. SERVICEING NOTE 6 3. TEST MODE 6 4. DIAGRAMS 4-1.Block Diagram Main Section 7 4-2.Block Diagram Power Section 9 4-3.Circuit Board Location 11 4-4.Schematic Diagram Digital Section(1/3) 13 4-5.Schematic Diagram Digital Section(2/3) 15 4-6.Schematic Diagram Digital Section(3/3) 1

27、7 4-7.Printed Wiring Board Digital Section(1/2) 19 4-8.Printed Wiring Board Digital Section(2/2) 21 4-9.Printed Wiring Board Display Section 23 4-10. Schematic Diagram Display Section 25 4-11. Printed Wiring Board Speaker Switch Section27 4-12. Schematic Diagram Speaker Switch Section 29 4-13. Print

28、ed Wiring Board Rear AMP Section31 4-14. Schematic Diagram Rear AMP Section 33 4-15. Printed Wiring Board Power Section 35 4-16. Schematic Diagram Power Section 37 4-17. Printed Wiring Board Video Section 39 4-18. Schematic Diagram Video Section 41 4-19. Printed Wiring Board Main Section 43 4-20. Sc

29、hematic Diagram Main Section(1/2) 45 4-21. Schematic Diagram Main Section(2/2) 47 4-22. IC Pin Function 49 4-23. IC Block Diagrams58 5. EXPLODED VIEWS 5-1.Front Panel Section 62 5-2.Chassis Section 64 6. ELECTRICAL PARTS LIST66 RadioFans.CN 收音机爱 好者资料库 4 SECTION 1 GENERAL Identifying the Parts Front

30、Panel 11/u switch 2FUNCTION control MODE button 3INPUT MODE button 45.1CH INPUT button 5MASTER VOLUME control 6MUTING button 7SLEEP button (EXCEPT AEP) RDS PTY button (AEP model) 8SPEAKERS selector PHONES jack 9DOOR OPEN button 0DIMMER button !DISPLAY button !A.F.D button/indicator MODE button/indic

31、ator 2CH button/indicator !MULTI CHANNEL DECODING indicator !BASS BOOST button !EQUALIZER button !TEST TONE button (EXCEPT AEP) RDS EON button (AEP model) !PRESET TUNING +/- buttons SHIFT button FM/AM button !TUNNIG +/- buttons FM MODE button MEMORY button !LEVEL button SUR button EQ button Cursor b

32、uttons () Jog dial SET UP button NAME button ENTER button 5 6 SECTION 3 TEST MODE 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 depressin

33、g the ENTER, the LEVEL and the EQ buttons simultaneously, press the power 1/u button to turn on the main power. All segments turn on at the same time, then each segment turns on press the ENTER button. FACTORY SET MODE * All preset contents are reset to the default setting. * Procedure: While depres

34、sing the SET UP, the LEVEL and the ENTER buttons simultaneously, press the power 1/u button to turn on the main power. The message Factry Set 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

35、before returning the product to clients upon completion of repair. * Procedure: While depressing the SET UP button simultaneously, press the power 1/u button to turn on the main power. The machine enters the DEMO mode.DEMO mode: Wait a while, then the demonstration starts. If the power 1/u button is

36、 pressed often the demonstration has started, the power is turned off, and the demonstration resumes if the power 1/u button is pressed again. ALL CLEAR mode; If the power 1/u button is pressed often the machine enters the DEMO mode, but before the demonstration starts, the display is turned off. Pr

37、ess 1/u again. No response is returned. The press 1/u again. The preset data is cleared and the machine enters the normal power-on state. SOUND FIELD 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 r

38、epair. * Procedure: While depressing the SOUND FIELD MODE button, press the power 1/u button to turn on the main power. The message S.F Initialize appears and initialization is performed. AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE (US,Canadian Model) * Either the 9 kHz step or 10 kHz step can be se

39、lected for the AM channel step. * Procedure: Set the FUNCTION to AM. Turn off the main power. While depressing the TUNING+ button or the PRESET TUNING + button, press the power 1/u button to turn on the main power. Either the message AM 9kHz Step or AM 10kHz Step appears. Select the desired step. DS

40、P TEST MODE * It tests whether the DSP works correctly or not. When the DSP test is activated, the test data is output from the DSP (IC1401: CXD2712R) of the DIGITAL board and is written in the RAM (IC1402: IDT71V016S). When the test data is read from the RAM by the DSP, the data output must be equi

41、valent to the original data. If they disagree, an error is triggered. Errors can be caused by the broken data line or defective soldering. * Procedure While pressing the SETUP, LEVEL and SUR buttons, press the POWER button to enter the DSP test mode. The message DSP TEST MODE appears. When an error

42、occurs, the message DSP2 ERROR is displayed. When there is no error, the message DSP2 NO ERROR appears and the 1 kHz signal is output to all channels. Then, the mode can be switched the (SIGN WAVE) (THROUGH) and (INPULSE) mode. AUTOBETICAL MODE (AEP Model only) * This mode is installed in the Europe

43、 models only. When this mode is used, the receiver scans the broadcasts that can be received by tuner, and sets up the broadcasts. Be sure to start scanning after connecting the antenna. Procedure: Check that the antenna is connected. Press the POWER button while pressing the MEMORY button to turn o

44、n the power. The message “Autobetical select” appears and scanning starts by tuner. VERSION MODE * When this mode is used, the microprocessor version number is displayed. * Procedure: Press the POWER button while pressing the ENTER, LEVEL, and SUR buttons to turn on the power. The microprocessor ver

45、sion number appears as follows. SECTION 2 SERVICING NOTE 1. When the front panel is removed, the VR board is removed at the same time. Consequently the LEDs cannot be turned on and the sound volume cannot be increased or decreased from the remote control. 2. When servicing the DIGITAL board, be sure

46、 to connect the earth land of the DIGITAL board with the chassis frame so that the earth potential of the DIGITAL board must not be floated from the chassis frame. Rear Panel 12345678 0!? 9 !?!?!?!?!?!?!?!? 1ANTENNA 2SIGNAL GND 3DIGITAL 45-1 CH INPUT 5SPEAKERS (FRONT) 6SPEAKERS (REAR) 7SPEAKERS (CEN

47、TER) 8PREOUT 9IMPEDANCE SELECTOR !AC OUTLET !AC power cord !S-LINK !2ND AUDIO OUT !VIDEO 1 !VIDEO 2 !DVD/LD !TV/SAT !TAPE !MD/DAT CD PHONO MONITOR STR-DB830/DB930/V929X 7 8 SECTION 4 DIAGRAMS L 58 DATA FM AM FM 75 AM DO TUNED T. MUTE STEREO DATA CLK CE L OUT R OUT TUNER UNIT DO TUNED MUTING STEREO S

48、 DATA S CLK S LAT R CH : FM : CD Signal Path RCH is omitted PHONO LCD J301 LINPUT LOUTPUT J302 J001 DAT/MD M OUT1 J201 MONITOR J202 J203 TV/LD DVD VIDEO 2 VIDEO 1 V1 IN13 V1 OUT15 V2 IN9 V2 OUT11 TV3 LD5 8VEE 16VCC 14SW1 10SW2 4SW3 6SW4 32 VIDEO SELECT IC201 -5V REG IC202 -15V +5V 4 3 2 8 6 11 5 9 1

49、2 CONTROL CE 16 CLK 14 DI 15 AUDIO SELECT IC301 MUTE Q1502 S LAT S CLK S DATA EQ AMP IC302 MUTE Q1506 IC1508 MUTE Q1505 VIDEO(SW1)77 SYSTEM CONTROL IC201 VIDEO(SW2)76 VIDEO(SW3)75 VIDEO(SW4)72 16 59 AUTO STOP 60 STEREO 84 TUNER MUTE S DATA S CLK S LAT DO TUNED STEREO TMUTE 56 DATA 57 CLOCK 55 LATCH D : PHONO 27 26 24 22 23 17 CONTROL CE 16 CLK 14 DI 15 SELECTOR IC303 S LAT S CLK S DATA 25 20 L TAPE (MD) INPUT LOUTPUT Y V1 O VIDEO 1 INPUT 5 15 1 LD M O Y SWITCH IC252 D201 VIDEO 1 OUTPUT Y C C C