Sony-STRDE675-rec-sm维修电路原理图.pdf

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1、STR-DE675 US Model Canadian Model AEP Model UK Model E Model Australian Model Chinese Model SERVICE MANUAL FM STEREO FM-AM RECEIVER Sony Corporation Audio Entertainment Group General Engineering Dept. 9-873-845-11 2001C1600-1 2001.3 Continued on next page SPECIFICATIONS Ver 1.0 2001. 03 Dolby Labora

2、tories Licensing Corporation. “DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation. AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 20 - 20,000 Hz; rated 100 watts per chann

3、el minimum RMS power, with no more than 0.09% total harmonic distortion from 250 milliwatts to rated output (USA model only). Amplifier section (8 ohms 20 Hz - 20 kHz, THD 0.09%) 100 W + 100 W (8 ohms at 1 kHz, THD 0.7%) Front1): 100 W/ch Center1): 100 W Surround1): 100 W/ch 1) Depending on the soun

4、d field settings and sources, there may be no sound output. MULTI CH IN, CD, MD/TAPE, DVD/ LD, TV/SAT, VIDEO 1*, VIDEO 2*, AUX: 10 Hz - 50 kHz +0.5/ 2 dB (with sound field and equalizer bypassed) Frequency response Reference Power Output Rated Power Output at Stereo mode US, Canadian MODELS Referenc

5、e Power Output Rated Power Output at Stereo mode AEP, UK MODEL : (8 ohms 1 Hz, THD 0.7%) 100 W + 100 W (8 ohms 1 kHz, THD 0.7%) Front : 100 W/ch Center : 100 W Surround : 100 W/ch Reference Power Output Rated Power Output at Stereo mode Chinese MODEL : (8 ohms 1 Hz, THD 0.7%) 90 W + 90 W (at 220 V A

6、C, 50 Hz) 100 W + 100 W (at 110 V AC, 50 Hz) (8 ohms 1 kHz, THD 10% at 230 V AC, 50 Hz) Front : 100 W/ch Center : 100 W Surround : 100 W/ch Reference Power Output Rated Power Output at Stereo mode Others : (8 ohms 1 Hz, THD 0.7%) 100 W + 100 W (8 ohms 1 kHz, THD 10%) Front : 110 W/ch Center : 110 W

7、Surround : 110 W/ch Reference Power Output Rated Power Output at Stereo mode (8 ohms 1 Hz, THD 0.7%) 100 W + 100 W (at 110 V AC, 50 Hz) (8 ohms 1 kHz, THD 10% at 110 V AC, 50 Hz) Front : 100 W/ch Center : 100 W Surround : 100 W/ch Photo : GOLD RadioFans.CN 收音机爱 好者资料库 2 STR-DE675 0.5 % (50 mV/m, 400

8、kHz) At 9 kHz: 35 dB At 10 kHz: 40 dB c) You can change the AM tuning interval to 9 kHz. After tuning in any AM station, turn off the receiver. Hold down the TUNING + button and press the ?/1 button. All preset stations will be erased when you change the tuning interval. To reset the scale to 10 kHz

9、, repeat the procedure. Video section Video: 1 Vp-p 75 ohms S-video*: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms Video: 1 Vp-p 75 ohms S-video*: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms General Tuner section: PLL quartz-locked digital synthesizer system Preamplifier section: Low-noise NF type equalizer

10、Power amplifier section: Pure-complementary SEPP FM tuner section 87.5 - 108.0 MHz 75 ohms, unbalanced 10.7 MHz Mono: 18.3 dBf, 2.2 V/75 ohms Stereo: 38.3 dBf 22.5 V/75 ohms 11.2 dBf, 1 V/75 ohms Mono: 76 dB Stereo: 70 dB Mono: 0.3% Stereo: 0.5% 45 dB at 1 kHz 30 Hz - 15 kHz +0.5/2 dB 60 dB at 400 k

11、Hz AM tuner section With 10-kHz tuning scale: 530 - 1710 kHzc) With 9-kHz tuning scale: 531 - 1710 kHz 531 - 1602 kHz c) 530 - 1610 kHz (10 kHz step)c) 531 - 1602 kHz (9 kHz step) c) 530 - 1610 kHz (10 kHz step) 531 - 1602 kHz (9 kHz step) Loop antenna 450 kHz 50 dB/m (at 1,000 kHz or 999 kHz) 54 dB

12、 (at 50 mV/m) 120 V 230 V AC, 50/60 Hz 120/220/240 V AC, 50/60 Hz 110 V AC, 50/60 Hz 120 V AC, 60 Hz 240 V AC, 50 Hz AC, 60 Hz 220W In standby condition: 1 W 315 VA In standby condition: 1 W 210 W In standby condition: 1 W 220 W In standby condition: 1 W 230 W In standby condition: 1 W 1 switched, t

13、otal 100 W Max 1 switched, total 120 W/1A Max 430 308.5 157.5 mm (14.5 10.4 5.3 in.) including projecting parts and controls 7.5 kg (16 lbs. 9 oz.) Design and specifications are subject to change without notice. FM wire antenna (1) AM loop antenna (1) R6 (size-AA) batteries (2) Remote commander RM-P

14、P505 (remote) (1) Tuning range Antenna terminals Intermediate frequency Sensitivity Usable sensitivity S/N Harmonic distortion at 1 kHz Separation Frequency response Selectivity Tuning range US, Canadian MODELS : Tuning range Others : Tuning range AEP, UK MODELS : Antenna Intermediate frequency Usab

15、le sensitivity S/N Harmonic distortion Selectivity Inputs Outputs System Supplied accessories Mass (Approx.) Dimensions AC outlets US, Canadian MODELS : Power consumption US MODEL : Canadian MODEL : AEP, UK MODELS : Mexican MODEL : E MODEL : Others : Power requirements US, Canadian MODEL : AEP, UK M

16、ODELS : E MODEL : Taiwan MODEL : Mexican MODEL : Australian MODEL : MULTI CH IN, CD, DVD/LD, MD/ TAPE, TV/SAT, VIDEO 1*, VIDEO 2*, AUX: Sensitivity: 250 mV Impedance: 50 kilohms S/Na): 96 dB (A, 250 mVb) a) Input short. b) Weighted network, input level. DVD/LD (coaxial): Sensitivity: Impedance: 75 o

17、hms S/N: 100 dB (A, 20 kHz LPF) (Optical): Sensitivity: Impedance: S/N: 100 dB (A, 20 kHz LPF) MD/TAPE, (OUT); VIDEO 1*, VIDEO 2* (AUDIO OUT): Voltage: 250 mV, Impedance: 10 kilohms SUB WOOFER: Voltage: 2 V Impedance: 1 kilohms PHONES: Accepts low- and high-impedance headphones 6 dB DVD/LD, TV/SAT,

18、MD/TAPE* 48 kHz (TV/SAT, MD/ TAPE OPTICAL IN) 96 kHz (DVD/LD OPTICAL IN, COAXIAL IN) Sampling Frequency EQ Outputs Inputs (Analog) Inputs (Digital) RadioFans.CN 收音机爱 好者资料库 3 STR-DE675 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRA

19、MS 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

20、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 re

21、turn 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 Da

22、ta 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

23、 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. Parts No. MODEL IDE

24、NTIFICATION BACK PANEL ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 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

25、MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. PARTS No. 4-232-251-0s 4-232-251-1s 4-232-251-2s 4-232-251-3s 4-232-251-4s 4-232-251-5s 4-232-251-6s 4-232-251-7s 4-232-251-8s 4-234-509-0s 4-234-509-1s 4-234-509-2s MODEL US model Canadian model E model AEP model UK model Australian model Malaysia, Sing

26、apore model Chinese model Taiwan model Korean model Mexican model Argentina model 4 STR-DE675 TABLE OF CONTENTS 1. GENETAL 5 2. TEST MODE 7 3. DIAGRAMS 3-1.Circuit Boards Location . 9 3-2.Block Diagrams . 10 Main Section . 10 Power Section . 11 3-3.Printed Wiring Board Digital Section . 12 3-4.Schem

27、atic Diagram Digital Section (1/3) . 13 3-5.Schematic Diagram Digital Section (2/3) . 14 3-6.Schematic Diagram Digital Section (3/3) . 15 3-7.Printed Wiring Board Main Section . 16 3-8.Schematic Diagram Main Section (1/3) . 17 3-9.Schematic Diagram Main Section (2/3) . 18 3-10. Schematic Diagram Mai

28、n Section (3/3) . 19 3-11. Printed Wiring Board Display Section . 20 3-12. Schematic Diagram Display Section . 21 3-13. Printed Wiring Board Video Section . 22 3-14. Schematic Diagram Video Section . 23 3-15. Schematic Diagram Trans Section . 24 3-16. IC Block Diagrams. 25 3-17. IC Pin Function Desc

29、ription. 27 4. EXPLODEO VIEWS 4-1.Front Panel Section . 29 4-2.Chassis Section. 30 5. ELECTRICAL PARTS LIST 32 5 STR-DE675 SECTION 1 GENERAL MULTI CHANNEL DECODING INPUT MODE MUTING VIDEO 1 MD/TAPE VIDEO 2 CD DVD/LD TUNER TV/SAT AUX DISPLAY DIMMER PHONES SPEAKERS / MEMORYSHIFTFM MODEFMAM EQ SURR LEV

30、EL SET UP NAME A ENTER A.F.D. SOUND FIELDMULTI CH IN EQUALIZERCINEMA STUDIO EX MODE2CH PRESET TUNINGTUNING + BC MASTER VOLUME + 89 0qaqs 1 qdqf 2 34567 m 1 ?/1 switch Press to turn the receiver on and off. 2 DISPLAY button Press repeatedly to change the information on the display window as follows:

31、Index name of the component or the preset station* m FUNCTION button indication or frequency* m Sound field applied to the program source * Index name appears only when you have assigned one to the component or preset station (see page 41). Index name does not appear when only blank spaces have been

32、 entered, or it is the same as the function button. * Frequency appears only when the tuner is selected. 3 DIMMER button Press repeatedly to adjust the brightness of the display. When you want to turn off the display, set in the “DIM.RANGE” parameter in the SET UP menu (page 45). 4 5 The following b

33、uttons operate the built-in tuner. For details, see “Receiving Broadcasts” starting from page 38. PRESET TUNING +/ buttons Scan all preset stations. TUNING +/- buttons Scan all the available radio stations. MEMORY button Press to memorize a preset station. SHIFT button Selects a memory page for pres

34、et stations. FM MODE button (AEP, UK, Argentina model only) If “STEREO” flashes in the display and the FM stereo reception is poor, press this button. You will not have the stereo effect but the sound is improved. FM button Selects the FM band. AM button Selects the AM band. MULTI CHANNEL DECODING i

35、ndicator This indicator lights up when the unit is decoding signals recorded in a multi channel format. 6 Use the CINEMA STUDIO EX buttons to enjoy the CINEMA STUDIO EX sound effects. A/B/C buttons Press to activate the CINEMA STUDIO EX A, B or C sound field (page 29). 7 Use the SOUND FIELD buttons

36、to enjoy surround sound. For details, see “Enjoying Surround Sound” starting from page 27. A.F.D. button / indicator Press to set the receiver to automatically detect the type of audio signal being input and perform proper decoding (if necessary). MODE button / indicator Press to activate the sound

37、field selection mode (page 28). 2CH button / indicator Press to output sound from only the front (left and right) speakers. 8 INPUT MODE button Press to select the input mode for your digital components (DVD/LD, TV/SAT and MD/TAPE). Each press switches the input mode of the currently selected compon

38、ent. SelectTo AUTOGive priority to digital signals when there are both digital and analog connections. If there are no digital signals, analog is selected DIGITAL (OPTICAL)Specify the digital audio signals input to the DIGITAL OPTICAL input jacks DIGITAL (COAXIAL)Specify the digital audio signals in

39、put to the DIGITAL COAXIAL input jacks (DVD/LD only) ANALOGSpecify the analog audio signals input to the AUDIO IN (L and R) jacks Note If 96 kHz digital signal is input, the tone, sound field and surround parameters do not function. 9 Function buttons Press one of the buttons to select the component

40、 you want to use. To selectPress VCRVIDEO 1 or VIDEO 2 DVD or LD playerDVD/LD TV or satellite tunerTV/SAT MD or Tape deckMD/TAPE CD playerCD Built in tunerTUNER An audio componentAUX After selecting the component, turn on the component you selected and play the program source. After selecting VCR, D

41、VD player, or LD player, turn on the TV and set the TVs video input to match the component you selected. 0 MASTER VOLUME control After turning on the component you selected, rotate to adjust the volume. qa MUTING button Press to mute the sound. MUTING appears in the display when the sound is muted.

42、qs EQUALIZER button Press to turn the equalizer on or off. The EQ indicator in the display lights when the equalizer is turned on. When you adjust the equalizer using the EQ parameters (page 36) the settings are stored automatically and can be reproduced wherever you turn on the equalizer. The equal

43、izer is not compatible with 96 kHz digital audio signals and during MULTI CH IN input. z When you want to listen to an analog source without any digital processing Do the following to bypass the sound field and equalizer circuits. 1 Press 2CH. 2 Press EQ to turn off the EQ indicator. The result will

44、 be a sound that is highly faithful to the program source. qd MULTI CH IN button Press to enjoy the audio source connected to the MULTI CH IN jacks with the video from the selected component. Press again to cancel MULTI CH IN. When the MULTI CH IN is selected, the tone, equalizer, and sound field ef

45、fects do not function. qf SPEAKERS button Press SPEAKERS button to ON. PHONES jack Connects headphones. When you connect the headphones, no sound will come from the speakers. This section is extracted from instruction manual. 6 STR-DE675 MULTI CHANNEL DECODING INPUT MODE MUTING VIDEO 1 MD/TAPE VIDEO

46、 2 CD DVD/LD TUNER TV/SAT AUX DISPLAY DIMMER PHONES SPEAKERS / MEMORYSHIFTFM MODEFMAM EQ SURR LEVEL SET UP NAME A ENTER A.F.D. SOUND FIELDMULTI CH IN EQUALIZERCINEMA STUDIO EX MODE2CH PRESET TUNINGTUNING + BC MASTER VOLUME + w;waws qg qhqjqk ql qg EQ button Press to activate the equalizer parameters

47、 (page 36). The indicator on the button lights up and you can adjust the various equalizer parameters. qh SURR button Press to activate the surround parameters (page 34). The indicator on the button lights up and you can adjust the various surround parameters (effect level, wall type, etc.). qj LEVEL button Press to activate the speaker level parameters