Sony-STRDE685-rec-sm维修电路原理图.pdf

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1、1 SERVICE MANUALUS Model Canadian Model AEP Model UK Model E Model Australian Model Tourist Model Chinese Model STR-DE685 FM STEREO/FM-AM RECEIVER 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 cha

2、nnel minimum RMS power, with no more than 0.09 % total harmonic distortion from 250 milliwatts to rated output (Models of area code US only). Amplifier section POWER OUTPUT Models of area code US, CND Rated Power Output at Stereo Mode (8 ohms 20 Hz 20 kHz, THD 0.09 %) 100 W + 100 W Reference Power O

3、utput (8 ohms 1 kHz, THD 0.7 %) FRONT 1) :100 W/ch CENTER 1) :100 W SURR 1) :100 W/ch Models of area code AEP, UK Rated Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %) 100 W + 100 W 2) Reference Power Output 2) (8 ohms 1 kHz, THD 0.7 %) FRONT 1) :100 W/ch CENTER 1) :100 W SURR 1) :100 W/ch SPE

4、CIFICATIONS Models of other area code Rated Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %) 100 W + 100 W 2) Reference Power Output 2) (8 ohms 1 kHz, THD 10 %) FRONT 1) :120 W/ch CENTER 1) :120 W SURR 1) :120 W/ch 1) Depending on the sound field settings and the source, there may be no sound o

5、utput. 2) Measured under the following conditions: Area codePower requirements E, AUS, JE240 V AC, 50 Hz AEP, UK, CH, SP, MY,230 V AC, 50 Hz AR, KR TW110 V AC, 60 Hz US, CND, MX120 V AC, 60 Hz Frequency response MULTI CH IN,10 Hz 70 kHz CD/SACD, AUX,+0.5/2 dB (with sound MD/TAPE, DVD/LD,field, equal

6、izer, and bass VIDEO 1, 2, 3boost bypassed) Inputs (Analog) MULTI CH IN,Sensitivity: 250 mV CD/SACD, AUX,Impedance: 50 kilohms MD/TAPE, DVD/LD,S/N 3) : 96 dB VIDEO 1, 2, 3(A, 250 mV 4) ) 3) INPUT SHORT (with sound field , equalizer and bass boost bypassed). 4) Weighted network, input level. Ver 1.1

7、2003. 08 9-873-687-02 2003H04-1 2003. 08 Sony Corporation Home Audio Company Published by Sony Engineering Corporation Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. “DTS” and “DTS Digital Surround” are registere

8、d trademarks of Digital Theater Systems, Inc. Continued on next page RadioFans.CN 收音机爱好者资料库 2 STR-DE685 Inputs (Digital) DVD/LD (Coaxial)Sensitivity: Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) VIDEO 2, CD/SACD,Sensitivity: MD/TAPE (Optical)Impedance: S/N: 100 dB (A, 20 kHz LPF) Outputs (Analog)

9、 MD/TAPE (OUT),Voltage: 250 mV VIDEO1 (AUDIO OUT)Impedance: 10 kilohms SUB WOOFERVoltage: 2 V Impedance: 1 kilohms Outputs (Digital) MD/TAPE (Optical)Sensitivity: EQ Gain levels:6 dB, 1 dB step FM tuner section Tuning range87.5 - 108.0 MHz Antenna terminals75 ohms, unbalanced Intermediate frequency1

10、0.7 MHz Sensitivity Mono:18.3 dBf, 2.2 V/75 ohms Stereo:38.3 dBf, 22.5 V/75 ohms Usable sensitivity11.2 dBf, 1 V/75 ohms S/N Mono:76 dB Stereo:70 dB Harmonic distortion at 1 kHz Mono:0.3% Stereo:0.5% Separation45 dB at 1 kHz Frequency response30 Hz 15 kHz, +0.5/2 dB Selectivity60 dB at 400 kHz AM tu

11、ner section Tuning range Models of area code US, CND With 10-kHz tuning scale: 530 1710 kHz 5) With 9-kHz tuning scale:531 1710 kHz 5) Models of area code E, MX, AR With 10-kHz tuning scale: 530 1610 kHz 5) With 9-kHz tuning scale:531 1602 kHz 5) Models of area code AEP, UK, AUS, JE, CH, SP, MY, TW,

12、 KR With 9-kHz tuning scale:531 1602 kHz AntennaLoop antenna Intermediate Frequency450 kHz Usable sensitivity50 dB/m (at 1,000 kHz or 999 kHz) S/N54 dB (at 50 mV/m) Harmonic distortion0.5 % (50 mV/m, 400 Hz) Selectivity At 9 kHz:35 dB At 10 kHz:40 dB 5) You can change the AM tuning scale to 9 kHz or

13、 10 kHz. After tuning in any AM station, turn off the receiver. Hold down PRESET TUNING + and press ?/1 . All preset stations will be erased when you change the tuning scale. To reset the scale to 10 kHz (or 9 kHz), repeat the procedure. Video section Inputs Video:1 Vp-p, 75 ohms S-video:Y: 1 Vp-p,

14、75 ohms C: 0.286 Vp-p, 75 ohms Component Video:Y: 1 Vp-p, 75 ohms PB B-Y: 0.7 Vp-p, 75 ohms PR R-Y: 0.7 Vp-p, 75 ohms Outputs Video:1 Vp-p, 75 ohms S-video:Y: 1 Vp-p, 75 ohms C: 0.286 Vp-p, 75 ohms Component Video:Y: 1 Vp-p, 75 ohms PB B-Y: 0.7 Vp-p, 75 ohms PR R-Y: 0.7 Vp-p, 75 ohms General Power r

15、equirements Area codePower requirements US, CND, MX120 V AC, 60 Hz AEP, UK230 V AC, 50/60 Hz CH, SP, MY, AR, KR220 230 V AC, 50/60 Hz E, JE120/220/240 V AC, 50/60 Hz TW110 V AC, 50/60 Hz AUS240 V AC, 50Hz Power consumption Area codePower consumption US, MX210 W CND300 VA AEP, UK, E, AUS, JE,180 W CH

16、, SP, MY, AR, KR TW450 W Power consumption (during standby mode) 0.5 W (when “A.PWR” in the SET UP menu is set to “OFF”). AC outlets Area codeAC outlets US, CND1 switched, 120 W/1A MAX AEP, UK, E, AUS, JE,1 switched, 100 W MAX MX, SP, MY, TW Dimensions430 157.5 308.5 mm (16 7/8 6 2/8 12 1/8 inches)

17、including projecting parts and controls Mass (Approx.)7.5 kg (16 lb 9 oz) Supplied accessories FM wire antenna (1) AM loop antenna (1) Remote commander (1) RM-PP411 (models of area code US, CND only) RM-U305C (except for models of area code US, CND) R6 (size-AA) batteries (2) Design and specificatio

18、ns are subject to change without notice. Abbreviation CND: Canadian model AUS: Australian model JE: Tourist model CH: Chinese model MX: Mexican model SP: Singapore model MY: Malaysia model TW: Taiwan model AR: Argentina model KR: Korean model RadioFans.CN 收音机爱好者资料库 3 STR-DE685 MODEL IDENTIFICATION

19、BACK PANEL Part No. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs,

20、 screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST 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 microampers.). Leaka

21、ge 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.M

22、easuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suitable. Nearly all battery opera

23、ted digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) 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 PA

24、RT NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS Q

25、UE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. Area codePart No. Singapore4-238-191-3s Malaysia4-238-191-4s E4-238-191-5s AEP4-238-191-6s UK, Australian4-238-191-7s Mexican4-238-191-8s Argentina4-238-191-9s Canadian4-238-192-2s US4-238-192-3s

26、Taiwan4-238-192-4s Korean4-238-192-5s Chinese4-238-192-6s Tourist4-238-192-7s Ver 1.1 4 TABLE OF CONTENTS 1. GENERAL Main unit . 5 Remote button description (US, Canadian model only). 6 Remote button description (Except US, Canadian model). 7 2. DISASSEMBLY 2-1. Case . 8 2-2. Front Panel Section . 9

27、 2-3. Headphone Board, Video3 Board. 9 2-4. Back Panel Section. 10 2-5. Digital Board. 10 2-6. Standby Board .11 2-7. Main Board .11 3. TEST MODE. 12 4. DIAGRAMS 4-1. IC Pin Descriptions .13 4-2. Block Diagram Tuner/Audio Section . 17 4-3. Block Diagram Digital Section .18 4-4. Block Diagram Key/Dis

28、play Section . 19 4-5. Block Diagram Video Section . 20 4-6. Block Diagram Power Section . 21 4-7. Circuit Boards Location . 22 4-8. Printed Wiring Boards Main Section . 23 4-9. Schematic Diagram Main Section (1/2) . 24 4-10. Schematic Diagram Main Section (2/2) . 25 4-11. Printed Wiring Board Digit

29、al Section (1/2) . 26 4-12. Printed Wiring Board Digital Section (2/2) . 27 4-13. Schematic Diagram Digital Section (1/2) .28 4-14. Schematic Diagram Digital Section (2/2) .29 4-15. Printed Wiring Boards Display Section . 30 4-16. Schematic Diagram Display Section .31 4-17. Printed Wiring Board Spea

30、ker B Section . 32 4-18. Schematic Diagram Speaker B Section .32 4-19. Printed Wiring Boards Video Section . 32 4-20. Schematic Diagram Video Section . 33 4-21. Printed Wiring Board S-video Section . 34 4-22. Schematic Diagram S-video Section .34 4-23. Printed Wiring Board Component Video Section .3

31、5 4-24. Schematic Diagram Component Video Section . 35 4-25. Printed Wiring Boards Power Section . 36 4-26. Schematic Diagram Power Section . 37 4-27. IC Block Diagrams. 38 5. EXPLODED VIEWS 5-1. Case Section . 40 5-2. Front Panel Section .41 5-3. Chassis Section-1 . 42 5-4. Chassis Section-2 . 43 6

32、. ELECTRICAL PARTS LIST. 44 STR-DE685 5 STR-DE685 SECTION 1 GENERALThis section is extracted from instruction manual. 5GB wkwle;eaesedejekelr;rarsehefeg 1 235906qa qsqdqfqgqjqk qlw; ws wf wh wa wd wg wj qh748 List of Button Locations and Reference Pages Main unit FM/AM (Models of area code CEL, CEK

33、only) ej (32, 33) FM MODE (Models of area code CEL, CEK only) ek , (Except for models of area code CEL, CEK) el (33) INPUT MODE ql (23) IR (receptor) 6 (42, 49, 55) Jog dial eh (18, 29, 31, 37, 38) LEVEL qs (18, 22, 29, 59) MASTER VOLUME wk (22, 53) MD/TAPE wa (23) MEMORY ra (32, 34) MODE es (26, 31

34、, 54) MULTI CHANNEL DECODING (indicator) qa (23) MULTI CH IN e; (23) MUTING wl (24, 53) NAME qf (37) PHONES (jack) 3 (24, 54) PRESET/PTY SELECT +/ (Models of area code CEL, CEK only) 7 (34, 35) PRESET TUNING +/ (Except for models of area code CEL, CEK) 7 (34, 57) PTY (Models of area code CEL, CEK on

35、ly) el (35) SET UP qd (4, 18, 38, 59) SHIFT r; (34) SPEAKERS A/B 2 (24, 29, 53) SURR 0 (29, 59) TUNER wg (23, 33, 34, 37) TUNING +/ 8 (33) VIDEO 1 w; (23) VIDEO 2 ws (23) VIDEO 3 wf (23) VIDEO 3 INPUT (jacks) rs (9) /1 (power) 1 (4, 17, 22, 31, 32, 57) eg (18, 29, 31, 37, 38) 2 CH ea (27) A.DEC ed (

36、25, 27) AM (Except for models of area code CEL, CEK) ej (32, 33) AUX wj (23) CD/SACD wd (23) CINEMA STUDIO EX A,B,C qh (26) Digital Cinema Sound (indicator) qj (25) DIMMER 5 (24) DISPLAY 4 (24, 35, 55) Display qg (24) DVD/LD wh (23) ENTER ef (37) EQ qk (31, 59) EQUALIZER qk (31) FM (Except for model

37、s of area code CEL, CEK) ek (32, 33) Use this page to find the location of buttons that are mentioned in the text. Illustration number r NAME qf (37) RR Name of button/partReference page 6 STR-DE685 42GB You can use the remote RM-PP411 to operate the components in your system. Before you use your re

38、mote Insert R6 (size-AA) batteries with the + and properly oriented in the battery compartment. When using the remote, point it at the remote sensor on the receiver. Under normal conditions, the batteries should last for about 6 months. When the remote no longer operates the receiver, replace all ba

39、tteries with new ones. Do not leave the remote in an extremely hot or humid place. Do not use a new battery with an old one. Do not expose the remote sensor to direct sunlight or lighting apparatuses. Doing so may cause a malfunction. If you dont use the remote for an extended period of time, remove

40、 the batteries to avoid possible damage from battery leakage and corrosion. Remote button description NX mM . - VIDEO1VIDEO2 USE MODE SYSTEM STANDBYSLEEP AV1AV2 TV ?/1AV ?/1 VIDEO3DVD/LD TV/SATMD/TAPECD/SACDTUNER PHONOAUXMULTI CHSOURCE SHIFT TOP MENU/ GUIDE AV MENU MUTING MASTER VOL DISPLAY TV VOLTV

41、 CH WIDEON SCREEN TV/ VIDEO MAIN MENU RETURN/EXIT D.TUNINGDISCALT ANTCLEARSEARCH MODE TEST TONEPRESET 123 456 789 0/1010/1112 AUTO DEC SUBTITLEENTER MODE AUDIO SWAP/ ANGLE JUMP/ TIME PRESET/ CH/D.SKIP MPX/ DUAL ANALOG DIRECT2CH SOUND FIELD x ?/1 P O f F Gg f F Gg Operations Using the Remote RM-PP411

42、 The tables below show the settings of each button. RemoteOperationsFunction Button ?/1ReceiverTurns the receiver on or off. SLEEPReceiverActivates the sleep function and the duration which the receiver turns off automatically. ENTER/ EXECUTE (US, Canadian model only) 7 STR-DE685 49GB You can use th

43、e remote RM-U305C to operate the components in your system. Before you use your remote Insert R6 (size-AA) batteries with the + and properly oriented in the battery compartment. When using the remote, point it at the remote sensor on the receiver. Under normal conditions, the batteries should last f

44、or about 6 months. When the remote no longer operates the receiver, replace all batteries with new ones. Do not leave the remote in an extremely hot or humid place. Do not use a new battery with an old one. Do not expose the remote sensor to direct sunlight or lighting apparatuses. Doing so may cause a malfunction. If you dont use the remote for an extended period of t