Sony-STRDE985-rec-sm 电路图 维修手册.pdf

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1、1 SERVICE MANUAL 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 channel minimum RMS power, with no more than 0.09 % total harmonic distortion from 250 milliwatts to rated o

2、utput (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 2) Reference Power Output (8 ohms 1 kHz, THD 0.7 %) FRONT 1) :100 W/ch CENTER 1) :100 W SURR 1) :100 W/ch SURR BACK 1) :10

3、0 W (DE985) Models of area code E23, MX Rated Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %) 100 W + 100 W 2) SPECIFICATIONS 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

4、may be no sound output. 2) Measured under the following conditions: Area codePower requirements E23240 V AC, 50 Hz US, CND, MX120 V AC, 60 Hz Frequency response PHONORIAA equalization curve 0.5 dB MULTI CH IN (1, 2) 5),10 Hz 70 kHz CD/SACD, TAPE 5),+0.5/2 dB (with sound MD/DAT 5), MD/TAPE 6),field a

5、nd equalizer bypassed) TV/SAT, DVD/LD, VIDEO 1, 2, 3 Ver 1.2 2002. 11 9-874-060-03 2002K0400-1 2002. 11 Sony Corporation Home Audio Company Published by Sony Engineering Corporation Continued on next page US Model Canadian Model STR-DE885/DE985 E Model STR-DE885 Photo: STR-DE885 This receiver incorp

6、orates Dolby* Digital and Pro Logic Surround and the DTS* Digital Surround System. *Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. * “DTS”, “ES” and “DTS Digital Surround” are registered trademarks of Digital The

7、ater Systems, Inc. STR-DE885/DE985 RadioFans.CN 收音机爱 好者资料库 2 STR-DE885/DE985 Inputs (Analog) PHONOSensitivity: 4 mV Impedance: 50 kilohms S/N 3) :86 dB (A, 4 mV 4) MULTI CH IN (1, 2) 5),Sensitivity: 250 mV CD/SACD, TAPE 5),Impedance: 50 kilohms MD/DAT 5), MD/TAPE 6),S/N 3) : 96 dB (A, 250 mV 4) TV/S

8、AT, DVD/LD, VIDEO 1, 2, 3 3) INPUT SHORT (with sound field , equalizer and bass boost bypassed). 4) Weighted network, input level. 5) STR-DE985 6) STR-DE885 Inputs (Digital) DVD/LD (Coaxial)Sensitivity: Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) CD/SACD, TV/SAT,Sensitivity: MD/DAT 5), MD/TAPE 6)

9、,Impedance: VIDEO 3 (Optical)S/N: 100 dB (A, 20 kHz LPF) Outputs (Analog) MD/DAT 5),Voltage: 250 mV MD/TAPE 6) (OUT),Impedance: 10 kilohms VIDEO1, 2 (AUDIO OUT) SUB WOOFER,Voltage: 2 V SURR BACK,Impedance: 1 kilohms 2ND ROOM 5) Outputs (Digital) MD/TAPE (Optical)Sensitivity: EQ BASS:99 Hz 1.0 kHz (2

10、1 steps) MID:198 Hz 10 kHz (37 steps) TREBLE:1.0 kHz 10 kHz (23 steps) Gain levels:10 dB, 1 dB step FM tuner section Tuning range87.5 108.0 MHz Antenna terminals75 ohms, unbalanced Intermediate frequency10.7 MHz Sensitivity Mono:18.3 dBf, 2.2 V/75 ohms Stereo:38.3 dBf, 22.5 V/75 ohms Usable sensitiv

11、ity11.2 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 tuner section Tuning range Models of area code US, CND With 10-kHz tuning scale: 530 1710 kHz 7) W

12、ith 9-kHz tuning scale:531 1710 kHz 7) Models of area code E23, MX With 10-kHz tuning scale: 530 1610 kHz 7) With 9-kHz tuning scale:531 1602 kHz 7) 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 % (5

13、0 mV/m, 400 Hz) Selectivity At 9 kHz:35 dB At 10 kHz:40 dB 7) You can change the AM tuning scale to 9 kHz or 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 scal

14、e to 10 kHz (or 9 kHz), repeat the procedure. Video section Inputs 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 Outputs Video:1 Vp-p, 75 ohms S-video:Y: 1 Vp-p, 75 ohms C: 0.286 Vp-p, 75

15、 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 requirements Area codePower requirements US, CND, MX120 V AC, 60 Hz E23120/220/240 V AC, 50/60 Hz Power consumption Area codePower consumption USSTR-DE985: 265 W STR-DE885: 210 W CNDSTR-DE985:

16、360 VA STR-DE885: 300 VA MX210 W E23230 W Power consumption (during standby mode) 0.5 W (when “POWER SAVE” in the CUSTOMIZE menu is set to “ON”). AC outlets Area codeAC outlets US, CND2 switched, 120 W/1A MAX E23, MX1 switched, 100 W MAX Dimensions430 157.5 369 mm (16 7/8 6 2/8 14 4/8 inches) includ

17、ing projecting parts and controls Mass (Approx.)9.5 kg (20 lb 16 oz) Supplied accessories FM wire antenna (1) AM loop antenna (1) Remote commander (1) RM-PG411 (STR-DE985) RM-PP411 (STR-DE885) R6 (size-AA) batteries (2) Audio/video/control S cord (1) Monaural mini-plug cord (1) Design and specificat

18、ions are subject to change without notice. Abbreviation CND: Canadian model E23: AC 120/220/240V area in E model MX: Mexican model RadioFans.CN 收音机爱 好者资料库 3 STR-DE885/DE985 MODEL IDENTIFICATION BACK PANEL Part No. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground SAFETY CH

19、ECK-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, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST

20、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.). Leakage current can be measured by any one of three methods. 1.A commercial leakage tester, such as the Simpson

21、 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

22、” 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 operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) SAFETY-RELATED COMPONENT WAR

23、NING! 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 PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYAN

24、T 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 QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. Ar

25、ea codePart No. DE885: US4-239-124-0s DE885: CND4-239-124-1s DE885: E234-239-124-5s DE885: MX4-239-124-9s DE985: US4-239-222-0s DE985: CND4-239-222-1s RadioFans.CN 收音机爱 好者资料库 4 TABLE OF CONTENTS 1. GENERAL Main unit . 5 Remote button description. 6 2. DISASSEMBLY 2-1. Case . 7 2-2. Front Panel Secti

26、on . 8 2-3. Headphone Board, Opt3 Board, Video3 Board. 8 2-4. Back Panel Section. 9 2-5. Digital Board. 9 2-6. Standby Board .10 2-7. Main Board .10 3. TEST MODE. 11 4. DIAGRAMS 4-1. IC Pin Descriptions .13 4-2. Circuit Boards Location . 21 4-3. Printed Wiring Boards Main Section . 22 4-4. Schematic

27、 Diagram Main Section (1/3) . 23 4-5. Schematic Diagram Main Section (2/3) . 24 4-6. Schematic Diagram Main Section (3/3) . 25 4-7. Printed Wiring Board Digital Section (1/2) . 26 4-8. Printed Wiring Boards Digital Section (2/2) .27 4-9. Schematic Diagram Digital Section (1/4) .28 4-10. Schematic Di

28、agram Digital Section (2/4) .29 4-11. Schematic Diagram Digital Section (3/4) .30 4-12. Schematic Diagram Digital Section (4/4) .31 4-13. Printed Wiring Board Speaker Section .32 4-14. Schematic Diagram Speaker Section . 33 4-15. Printed Wiring Boards Display Section . 34 4-16. Schematic Diagram Dis

29、play Section .35 4-17. Printed Wiring Board Video Section .36 4-18. Schematic Diagram Video Section . 37 4-19. Printed Wiring Boards S-video Section . 38 4-20. Schematic Diagram S-video Section .39 4-21. Printed Wiring Board Component Section . 40 4-22. Schematic Diagram Component Section . 41 4-23.

30、 Printed Wiring Boards Power Section . 42 4-24. Schematic Diagram Power Section . 43 4-25. IC Block Diagrams. 44 5. EXPLODED VIEWS 5-1. Case Section . 49 5-2. Front Panel Section .50 5-3. Chassis Section-1 . 51 5-4. Chassis Section-2 . 52 6. ELECTRICAL PARTS LIST. 53 STR-DE885/DE985 5 STR-DE885/DE98

31、5 SECTION 1 GENERALThis section is extracted from instruction manual. List of Button Locations and Reference Pages 5GB List of Button Locations and Reference Pages Main unit How to use this page Use this page to find the location of buttons that are mentioned in the text. Illustration number r CUSTO

32、MIZE qd (42, 44, 65) RR Name of button/partReference page ALPHABETICAL ORDER 0 9 2CH wl (31, 32) 2ND ROOM (STR-DE985 only) wd (28) A D A. DEC ea (29, 31) AM eg (40) CINEMA STUDIO EX A, B, C qf (30) CUSTOMIZE qd (42, 44, 65) Digital Cinema Studio (indicator) qj (29) DIGITAL CONCERT HALL A, B qk (31)

33、DIMMER r; (28) DISPLAY 4 (28, 60) Display qg (28) E I ENTER es (42) EQ 8 (38, 64) EQUALIZER wj (38) FM eh (40) FM MODE ej (40) FUNCTION wf (26, 59) INPUT MODE wh (26) IR (receptor) 5 (48, 60) J N Jog dial ef (20, 35, 37, 38, 42, 44, 63) LEVEL q; (25, 37, 63) MASTER VOLUME ws (25, 58) MEMORY el (41)

34、MODE (FUNCTION) wg (26) MODE (SOUND FIELD) e; (30, 31, 59) MULTI/2CH ANALOG DIRECT wk (27) MULTI CHANNEL DECODING (indicator) qa (27) MUTING wa (27, 58) O S ON SCREEN (STR-DE985 only) ra (10) PHONES (jack) 3 (27, 59) PRESET TUNING +/ 6 (41, 62) SB DEC (indicator) qh (33) SET UP qs (20, 65) SHIFT ek

35、(41) SPEAKERS A/B 2 (17, 27, 35, 58) SURR 9 (35, 63) SURR BACK DECODING w; (33) T Z TUNING +/ 7 (40) VIDEO 3 DIGITAL INPUT (jack) rd (11) VIDEO 3 INPUT (jacks) rs (10) VIDEO SELECT INDICATOR ql (26) BUTTON DESCRIPTIONS ?/1 (power) 1 (19, 25, 39, 62) / ed (20, 35, 37, 38, 42, 44, 63) 123456 7 89 q;qa

36、qsqdqfqgqhqjqkqlw;waws wfwdwgwhwjwkwle;eaesedefegehejekelr;rarsrd 6 STR-DE885/DE985 48US You can use the remote RM-PG411 (STR- DE985 only) or RM-PP411 (STR-DE885 only) to operate the components in your system. Before you use your remote Inserting batteries into the remote Insert R6 (size-AA) batteri

37、es with the + and properly oriented in the battery compartment. When using the remote, point it at the remote sensor on the receiver. Tip Under normal conditions, the batteries should last for about 6 months. When the remote no longer operates the receiver, replace all batteries with new ones. Notes

38、 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 the batteries to avoi

39、d possible damage from battery leakage and corrosion. Remote button description VIDEO1VIDEO2 USE MODE SYSTEM STANDBYSLEEP AV1AV22ND M2 TV ?/1AV ?/1 VIDEO3DVD/LD TV/SATTAPEMD/DATCD/SACD PHONO M1 TIMERMULTI CHSOURCE ?/1 P VIDEO1VIDEO2 USE MODE SYSTEM STANDBYSLEEP AV1AV2 TV ?/1AV ?/1 VIDEO3DVD/LD TV/SA

40、TMD/TAPECD/SACDTUNER PHONOAUXMULTI CHSOURCE ?/1 P NX mM . - SHIFT TOP MENU/ GUIDE AV MENU MUTING MASTER VOL DISPLAY TV VOLTV 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

41、/ TIME PRESET/ CH/D.SKIP MPX/ DUAL ANALOG DIRECT2CH SOUND FIELD x O f F Gg f F Gg Operations Using the Remote RM-PG411 and RM-PP411 The tables below show the settings of each button common to both remote RM-PG411 and RM-PP411. RemoteOperationsFunction Button ?/1ReceiverTurns the receiver on or off.

42、SLEEPReceiverActivates the sleep function and the duration which the receiver turns off automatically. ENTER/ EXECUTE RM-PG411 RM-PP411 RM-PG411 and RM-PP411 7 STR-DE885/DE985 Note : This set can be disassemble according to the following sequence. SECTION 2 DISASSEMBLY 2-1. CASE Note : Follow the di

43、sassembly procedure in the numerical order given. 2-1.CASE (Page 7) 2-2.FRONT PANEL SECTION (Page 8) 2-4.BACK PANEL SECTION (Page 9) SET 2-3.HEADPHONE BOARD, OPT3 BOARD, VIDEO3 BOARD (Page 8) 2-5.DIGITAL BOARD (Page 9) 2-6.STANDBY BOARD (Page 10) 2-7.MAIN BOARD (Page 10) 1two screws (case 3 TP2) 2tw

44、o screws (case 3 TP2) 3two screws (case 3 TP2) 4case 8 STR-DE885/DE985 2-2. FRONT PANEL SECTION 2-3. HEADPHONE BOARD, OPT3 BOARD, VIDEO3 BOARD 8front panel section 6two screws (BVTP 3x8) 1CNS505 3CNP508 4CNP205 5CNP210 2CNP701 7five screws (BVTP 3x8) 1two screws (BVTP 2.6x8) 3two screws (BVTP 2.6x8) 3two screws (BVTP 2.6x8) 2HEADPHONE board 4OPT3 board front panel section 4VIDEO3 board 9 STR-DE885/DE985 2-5. DIGITAL