Sony-STRDE995-rec-sm 电路图 维修手册.pdf

《Sony-STRDE995-rec-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Sony-STRDE995-rec-sm 电路图 维修手册.pdf（78页珍藏版）》请在收音机爱好者资料库上搜索。

1、1 SERVICE MANUALUS Model STR-DE895/DE995 Canadian Model STR-DE995 E Model STR-DE895 STR-DE895/DE995 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

2、, 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 Output (8 ohms 20 Hz 20

3、 kHz, THD 0.09 %) FRONT 1) :100 W/ch CENTER 1) :100 W SURR 1) :100 W/ch SURR BACK 1) :100 W/ch 3) or 100 W 4) (8 ohms 1 kHz, THD 0.7 %) FRONT 1) :110 W/ch CENTER 1) :110 W SURR 1) :110 W/ch SURR BACK 1) :110 W/ch 3) or 110 W 4) SPECIFICATIONS Models of area code E2, E3, MX Rated Power Output at Ster

4、eo Mode (8 ohms 1 kHz, THD 0.7 %) 110 W + 110 W 2) Reference Power Output 2) (8 ohms 1 kHz, THD 10 %) FRONT 1) :130 W/ch CENTER 1) :130 W SURR 1) :130 W/ch SURR BACK 1) :130 W/ch 3) or 130 W 4) 1) Depending on the sound field settings and the source, there may be no sound output. 2) Measured under t

5、he following conditions: Area codePower requirements E2, E3240 V AC, 50 Hz 3) STR-DE995 only. 4) STR-DE895 only. Ver 1.0 2003. 06 9-877-446-01 2003F04-1 2003. 06 Sony Corporation Home Audio Company Published by Sony Engineering Corporation Manufactured under license from Dolby Laboratories. “Dolby”,

6、 “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. “DTS”, “DTS-ES Extended Surround” and “Neo:6” are trademarks of Digital Theater Systems, Inc. Continued on next page Photo: STR-DE895 RadioFans.CN 收音机爱 好者资料库 2 STR-DE895/DE995 Frequency response PHONORIAA equalization curve 0

7、.5 dB MULTI CH IN (1, 2),10 Hz 70 kHz CD/SACD, TV/SAT,+0.5/2 dB (with sound MD/TAPE, DVD,field and equalizer VIDEO 1, 2, 3bypassed) Inputs (Analog) PHONOSensitivity: 8 mV Impedance: 50 kilohms S/N 5): 86 dB (A, 8 mV 6) MULTI CH IN (1, 2),Sensitivity: 500 mV CD/SACD, TV/SAT,Impedance: 50 kilohms MD/T

8、APE, DVD,S/N 5) : 96 dB VIDEO 1, 2, 3(A, 500 mV 6) ) 5) INPUT SHORT (with sound field and equalizer bypassed). 6) Weighted network, input level. Inputs (Digital) DVD (Coaxial)Sensitivity: Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) TV/SAT, CD/SACD,Sensitivity: MD/TAPE, VIDEO 3Impedance: (Optical)

9、S/N: 100 dB (A, 20 kHz LPF) Outputs (Analog) MD/TAPE (OUT),Voltage: 500 mV VIDEO 1, 2Impedance: 10 kilohms (AUDIO OUT) SUB WOOFERVoltage: 2 V Impedance: 1 kilohms Outputs (Digital) MD/TAPE (Optical)Sensitivity: EQUALIZER Gain levels:10 dB, 0.5 dB step FM tuner section Tuning range87.5 - 108.0 MHz An

10、tenna 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 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 respons

11、e30 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) With 9-kHz tuning scale:531 1710 kHz 7) Models of area code E2, E3 With 10-kHz tuning scale: 530 1610 kHz 7) With 9-kHz tuning scale:531 1602 kHz 7

12、) Models of area code MX With 10-kHz tuning scale: 530 1610 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 7) You can change the AM t

13、uning 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 scale to 10 kHz (or 9 kHz), repeat the procedure. Video section Inputs Video:1 Vp-p, 75 o

14、hms 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 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 o

15、hms General Power requirements Area codePower requirements US, CND, MX120 V AC, 60 Hz E2, E3120/220/240 V AC, 50/60 Hz Power consumption Area codePower consumption USSTR-DE995: 300 W STR-DE895: 265 W CND410 VA E2, E3, MX265 W Power consumption (during standby mode) 0.3 W (when “POWER SAVE” in the CU

16、STOMIZE menu is set to “ON”) AC outlets2 switched, 120 W/1 A MAX (Models of area code US, CND) 1 switched, 100 W MAX (Models of other area code) Dimensions430 159 324 mm (16 7/8 6 2/8 12 6/8 in.) including projecting parts and controls Mass (Approx.)10.6 kg (23 lb 6 oz) (STR-DE995) 9.7 kg (21 lb 7 o

17、z) (STR-DE895) Supplied accessories FM wire antenna (1) AM loop antenna (1) Remote commander (1) RM-LG112 (STR-DE995 models of area code US only) RM-PG412 (Models of other area code) R6 (size-AA) batteries (2) Design and specifications are subject to change without notice. Abbreviation CND: Canadian

18、 model E2: AC 120 V area in E model E3: AC 240 V area in E model MX: Mexican model RadioFans.CN 收音机爱 好者资料库 3 STR-DE895/DE995 MODEL IDENTIFICATION BACK PANEL Part No. MODELPART No. STR-DE995: US4-244-815-0s STR-DE995: Canadian4-244-815-1s STR-DE895: US4-244-815-2s STR-DE895: E2, E34-244-815-4s STR-DE

19、895: Mexican4-244-815-5s 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” k

20、nobs, 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.).

21、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

22、. 3.Measuring 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

23、operated 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 WHO

24、SE PART 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 COMPOSA

25、NTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. Fig. A. Using an AC voltmeter to check AC leakage. RadioFans.CN 收音机爱 好者资料库 4 TABLE OF CONTENTS 1. GENERAL Main unit (STR-DE995 only). 5 Main unit (STR-DE895 only). 6 Remote button description

26、 (RM-PG412) . 7 Remote button description (RM-LG112) . 8 2. DISASSEMBLY 2-1. Case . 9 2-2. Front Panel Section .10 2-3. Back Panel. 10 2-4. Digital Board. 11 2-5. Main Board .11 2-6. Standby Board .12 3. TEST MODE. 13 4. DIAGRAMS 4-1. IC Pin Descriptions .14 4-2. Block Diagram Tuner/Audio Section .

27、19 4-3. Block Diagram Digital Section .20 4-4. Block Diagram Video Section . 21 4-5. Block Diagram Key/Display Section . 22 4-6. Block Diagram OSD Section . 23 4-7. Block Diagram Power Section . 24 4-8. Circuit Boards Location . 25 4-9. Schematic Diagram Main Section (1/3) . 26 4-10. Schematic Diagr

28、am Main Section (2/3) . 27 4-11. Schematic Diagram Main Section (3/3) . 28 4-12. Printed Wiring Board Main Section . 29 4-13. Printed Wiring Boards Speaker B/Headphone Section . 30 4-14. Schematic Diagram Speaker B/Headphone Section .31 4-15. Printed Wiring Board Digital Section (1/2) . 32 4-16. Pri

29、nted Wiring Boards Digital Section (2/2) .33 4-17. Schematic Diagram Digital Section (1/3) .34 4-18. Schematic Diagram Digital Section (2/3) .35 4-19. Schematic Diagram Digital Section (3/3) .36 4-20. Printed Wiring Boards Audio Section . 37 4-21. Schematic Diagram Audio Section . 38 4-22. Printed W

30、iring Board S-video Section . 39 4-23. Schematic Diagram S-video Section .40 4-24. Printed Wiring Board Video Section (DE895) . 41 4-25. Printed Wiring Board Video Section (DE995) . 42 4-26. Schematic Diagram Video Section . 43 4-27. Printed Wiring Board Up Convert Section (DE995) . 44 4-28. Schemat

31、ic Diagram Up Convert Section (DE995) . 45 4-29. Printed Wiring Boards Display Section . 46 4-30. Schematic Diagram Display Section .47 4-31. Printed Wiring Boards Power Section . 48 4-32. Schematic Diagram Power Section . 49 4-33. IC Block Diagrams. 50 5. EXPLODED VIEWS 5-1. Case Section . 53 5-2.

32、Front Panel Section .54 5-3. Chassis Section-1 . 55 5-4. Chassis Section-2 . 56 6. ELECTRICAL PARTS LIST. 57 STR-DE895/DE995 5 STR-DE895/DE995 SECTION 1 GENERALThis section is extracted from instruction manual. 6 STR-DE895/DE995 7 STR-DE895/DE995 8 STR-DE895/DE995 9 STR-DE895/DE995 Note : This set c

33、an be disassemble according to the following sequence. SECTION 2 DISASSEMBLY 2-1. CASE 2-1.CASE (Page 9) 2-2.FRONT PANEL SECTION (Page 10) 2-3.BACK PANEL (Page 10) SET 2-6.STANDBY BOARD (Page 12) 2-4.DIGITAL BOARD (Page 11) 2-5.MAIN BOARD (Page 11) Note : Follow the disassembly procedure in the nume

34、rical order given. 1 two screws (case 3 TP2) 2 three screws (case 3 TP2) 3 two screws (case 3 TP2) 4 case 10 STR-DE895/DE995 2-2. FRONT PANEL SECTION 2-3. BACK PANEL 9 front panel section 8 6 two screws (BVTP3 x 8) 2 CNP701 7 five screws (BVTP3 x 8) 1 CNS505 3 CNP508 4 CNP205 5 CNP210 1 CNS509 2 CNS

35、508 4 CNP901 5 CNP851 6 CNP852 7 CNP207 8 CNP812 3 CNP205 qj CNP210 qs four screws (BVTP3 x 8) qd five screws (BVTP3 x 8) qf four screws (BVTP3 x 8) qg two screws (BVTP3 x 8) 0 two screws (BVTP3 x 8) 9 screw (BVTP3 x 8) qa screw (BVTP3 x 8) qk back panel qh 11 STR-DE895/DE995 2-4. DIGITAL BOARD 1 CN

36、S505 7 2 CNP506 3 CNP510 4 CNP507 8 screw (BVTP3 x 8) 9 bracket (digital) 0 DIGITAL board 6 screw (BVTP3 x 8) 5 CNP508 0 MAIN board 5 RETAINER board 1 CNP802 2 CNP908 3 CNP813 4 screw (BVTP3 x 8) 9 screw (BVTP3 x 6) 6 two screws (BVTP3 x 6) 7 two screws (BVTP3 x 6) 8 two screws (BVTP3 x 6) 2-5. MAIN

37、 BOARD 12 STR-DE895/DE995 5 STANDBY board 2 CNP813 1 CNP815 3 CNP905 4 three screws (BVTP3 x 6) 2-6. STANDBY BOARD 13 STR-DE895/DE995 SECTION 3 TEST MODE FACTORY PRESET MODE * All preset contents are reset to the default setting. * Procedure: While depressing the MOVIE and the MAIN MENU buttons simu

38、ltaneously, press the ?/1 button to turn on the main power. The message “MEMORY CLEARING” and “MEMORY CLEARED!” appears for a moment and the present contents are reset to the default values. AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE (Except Mexican model) * Either the 9 kHz step or 10 kHz step can

39、 be selected for the AM channel step. * Procedure: While depressing the PRESET TUNING + button or the TUNING + button, press the ?/1 button to turn on the main power. Either the message “AM 9kHz Step” or “AM 10kHz Step” appears for a moment and select the desired step. FLUORESCENT INDICATOR TUBE TES

40、T MODE * All fluorescent segments are tested. When this test is activated, all segments light on at the same time, then each segment lights on one after another. * Procedure: While depressing the SB DECODING (DE895), the SURR BACK DECODING (DE995) and the DISPLAY buttons simultaneously, press the ?/

41、1 button to turn on the main power. 1.ALL segments light on. MULTI CHANNEL DECODING, VIDEO 1, VIDEO 2, VIDEO 3, DVD and TV/SAT LED light on. 2.Press the DIMMER button, confirm display. SURR BACK DECODING, MD/TAPE, CD/SACD, TUNER FM/ AM and PHONO LED light on. 3.Press the DIMMER button, confirm displ

42、ay. 2CH, A.F.D., MOVIE and MUSIC LED light on. 4.Press the DIMMER button, all segments and all LEDs light on. 5.Every pressing the DIMMER button turns on each segment and LED one after another in the same order. SLEEP SP.A SP.B NIGHT MULTIINCH A.DIRECT D.RANGE EQNEO:6 MPEGRDSSTEREO OPT COAX D.ASSIGN

43、 -2AAC221CH MODEDIGITAL EXPRO LOGICDTS-ESMONOMEMORY96/24II SWLCR SLLFESSR SBL SB SBR DDDD 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 repair. * Procedure: While depressing the 2CH button, press the ?/1 button to turn on the main power. The message “S.F. Initialize” appears for a moment. SOFTWARE VERSION DISPLAY MODE * The software