Sony-STRK900-rec-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL Sony Corporation Home Audio Division Published by Sony Techno Create Corporation US Model Canadian Model STR-K900 AEP Model UK Model E Model Australian Model STR-K880 MULTI CHANNEL AV RECEIVER 9-887-101-04 2007H16-1 2007.08 Ver. 1.3 2007.08 SPECIFICATIONS STR-K880/K900 STR-K880 is the

2、 tuner and the amplifier section in HT-DDW880, STR-K900 is the tuner and the amplifier section in HT-DDW900. 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 registered trademar

3、ks of Digital Theater Systems, Inc. Continued on next page POWER OUTPUT AND TOTAL HARMONIC DISTORTION: (Models of area code US only) With 6 ohm loads, both channels driven, from 120 20,000 Hz; rated 90 watts per channel minimum RMS power, with no more than 0.7% total harmonic distortion from 250 mil

4、liwatts to rated output. Amplifier section Power Output1) Models of area code US, CND (6 ohms 1 kHz, THD 0.7%) FRONT2): 90 W/ch CENTER2): 90 W SUR2): 90 W/ch (6 ohms 1 kHz, THD 10%) FRONT2): 140 W/ch CENTER2): 140 W SUR2): 140 W/ch 1)Measured under the following conditions: 2)Depending on the sound

5、field settings and the source, there may be no sound output. Inputs (Analog) Area codePower requirements US, CND120 V AC, 60 Hz MULTI CH IN, SA-CD/CD, MD/TAPE, DVD, VIDEO 1, 2, 3 Sensitivity: 800 mV Impedance: 50 kohms Models of area code AEP, UK, SP, SP6, E51 (6 ohms 1 kHz, THD 0.7%) FRONT2): 90 W/

6、ch CENTER2): 90 W SUR2) 90 W/ch SUR BACK2): 90 W (6 ohms 1 kHz, THD 10%) FRONT2): 135 W/ch CENTER2): 135 W SUR2): : 135 W/ch SUR BACK2): 135 W Models of area code AUS (6 ohms 120 Hz 20 kHz, THD 0.09%) FRONT2): 70 W/ch CENTER2): 70 W SUR2): 70 W/ch SUR BACK2): 70 W (6 ohms 1 kHz, THD 0.7%) FRONT2): 9

7、0 W/ch CENTER2): 90 W SUR2): 90 W/ch SUR BACK2): 90 W (6 ohms 1 kHz, THD 10%) FRONT2): 135 W/ch CENTER2): 135 W SUR2): 135 W/ch SUR BACK2): 135 W AEP,UK,SP,SP6230 V AC, 50 Hz E51, AUS240 V AC, 50 Hz Inputs (Digital) Outputs (Analog) DVD (Coaxial)Sensitivity: Impedance: 75 ohms VIDEO 1, 2 (Optical) S

8、ensitivity: Impedance: MD/TAPE (OUT), VIDEO 1 (AUDIO OUT) Voltage: 800 mV Impedance: 10 kohms SUB WOOFERVoltage: 2 V Impedance: 1 kohm Photo : STR-K880 RadioFans.CN 收音机爱 好者资料库 2 STR-K880/K900 Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of

9、 a tantalum capacitor may be damaged by heat. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : L

10、EAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature

11、regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occu

12、r such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. MODEL IDENTIFICATION Rear Panel ModelPart No. US model2-663-098-0 Canadian model2-663-098-1 AEP, UK models2-663-098-2 E51 model2-663-098-3 SP, SP6 m

13、odels2-663-098-4 AUS model2-663-098-5 Parts No. Abbreviation AUS: Australian model CND: Canadian model E51: Chilean and Peruvian models SP: Singapore model SP6: Singapore and Malaysia models Reproduction frequency range 28 - 20,000 Hz Tone FM tuner section Tuning range87.5 - 108.0 MHz AntennaFM wire

14、 antenna Antenna terminals75 ohms, unbalanced Intermediate frequency 10.7 MHz AM tuner section Tuning range Models of area code US, CND With 10-kHz tuning scale: 530 1,710 kHz3) With 9-kHz tuning scale: 531 1,710 kHz3) AntennaLoop antenna Intermediate frequency 450 kHz 3)You can change the AM tuning

15、 scale to 9 kHz or 10 kHz. After tuning in any AM station, turn off the receiver. While holding down TUNING MODE, 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/Outputs Video:1 Vp-p,

16、75 ohms COMPONENT VIDEO: Y: 1 Vp-p, 75 ohms PB/CB/B-Y: 0.7 Vp-p, 75 ohms PR/CR/R-Y: 0.7 Vp-p, 75 ohms 80 MHz HD Pass Through Gain levels6 dB, 1 dB step General Power requirements Power consumption Power consumption (during standby mode) 0.2 W Dimensions (w/h/d) (Approx.) 430 157.5 316 mm (167/8 62/8

17、 124/8 inches) including projecting parts and controls Mass (Approx.)8.0 kg (17 lb 11 oz) Area codePower requirements US, CND120 V AC, 60 Hz Area codePower consumption US170 W CND230 VA Models of area code E51 With 10-kHz tuning scale: 530 1,610 kHz3) With 9-kHz tuning scale: 531 1,602 kHz3) Models

18、of area code AEP, UK, AUS, SP, SP6 With 9-kHz tuning scale: 531 1,602 kHz AntennaLoop antenna Intermediate frequency 450 kHz AEP, UK230 V AC, 50/60 Hz AUS240 V AC, 50 Hz SP, SP6230 240 V AC, 50/60 Hz E51120/220/240 V AC, 50/60 Hz AEP, UK, AUS, SP, SP6, E51 200 W Design and specifications are subject

19、 to change without notice. Ver. 1.1 RadioFans.CN 收音机爱 好者资料库 3 STR-K880/K900 TABLE OF CONTENTS 1.GENERAL.4 2.TEST MODE. 12 3.DIAGRAMS. 14 3-1.Block Diagram MAIN Section . 16 3-2.Block Diagram DISPLAY/POWER Section . 17 3-3.Printed Wiring Board DIGITAL Board (Side A) . 18 3-4.Printed Wiring Board DIGI

20、TAL Board (Side B) . 19 3-5.Schematic Diagram DIGITAL Board (1/5) . 20 3-6.Schematic Diagram DIGITAL Board (2/5) . 21 3-7.Schematic Diagram DIGITAL Board (3/5) . 22 3-8.Schematic Diagram DIGITAL Board (4/5) . 23 3-9.Schematic Diagram DIGITAL Board (5/5) . 24 3-10. Printed Wiring Board MAIN Board . 2

21、5 3-11. Schematic Diagram MAIN Board (1/3) . 26 3-12. Schematic Diagram MAIN Board (2/3) . 27 3-13. Schematic Diagram MAIN Board (3/3) . 28 3-14. Printed Wiring Boards DISPLAY Board, POWER Board . 29 3-15. Schematic Diagrams DISPLAY Board, POWER Board . 30 3-16. Printed Wiring Boards STANDBY Board,

22、AC SELECT Board . 31 3-17. Printed Wiring Board SPEAKER Board . 32 3-18. Schematic Diagram SPEAKER Board, STANDBY Board, AC SELECT Board . 33 3-19. Printed Wiring Board SPEAKER B Board . 34 3-20. Printed Wiring Boards ADCC Board, VIDEO 3 Board . 35 3-21. Schematic Diagrams SPEAKER B Board, ADCC Boar

23、d, VIDEO 3 Board . 36 3-22. Printed Wiring Boards VIDEO Board, HEADPHONE Board . 37 3-23. Schematic Diagram VIDEO Board, HEADPHONE Board . 38 3-24. Printed Wiring Board HDMI Board . 39 3-25. Schematic Diagram HDMI Board . 40 4.EXPLODED VIEWS 4-1.Front Panel Section . 49 4-2.Chassis Section-1 . 50 4-

24、3.Chassis Section-2 . 51 5.ELECTRICAL PARTS LIST. 52 SAFETY CHECK-OUT After correcting the original service problem, perform the following 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

25、 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 microamperes.). Leakage current can be measured by any one of thre

26、e 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.Measuring the voltage drop across a resistor b

27、y 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 of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range a

28、re suitable. (See Fig. A) Fig. A.Using an AC voltmeter to check AC leakage. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground 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 CR

29、ITICAL 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 IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SON

30、T CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. About area codes The area code of the receiver you purchased is shown on the lower right portion of the rear panel (see

31、 the illustration below). Any differences in operation, according to the area code, are clearly indicated in the text, for example, “Models of area code AA only”. SPEAKERS FRONT B LR LR CENTER SURROUND BACK SURROUNDFRONT A RR LL + SPEAKERS + Area code RadioFans.CN 收音机爱 好者资料库 4 STR-K880/K900 SECTION

32、1 GENERAL This section is extracted from instruction manual. Front panel To remove the cover Press PUSH. When you remove the cover, keep it out of reach from children. Receiver ?/1 AUTO CAL MIC SPEAKERS (OFF/A/B/A+B) PHONES VIDEO 3 IN/PORTABLE AV IN VIDEOL AUDIO R MEMORY/ ENTER TUNING MODETUNING2CHA

33、.F.D.MOVIEMUSICMULTI CH INMUTING DISPLAYINPUT MODE INPUT SELECTOR MASTER VOLUME 1325764 98q;qaqsqlqdqfqgqhqj PUSH qk NameFunction A ?/1Press to turn the receiver on or off. B SPEAKERS (OFF/A/B/A+B) Press to select OFF, A, B, A+B of the front speakers C DisplayThe current status of the selected compo

34、nent or a list of selectable items appears here. D Remote sensorReceives signals from remote commander. NameFunction E DISPLAYPress to select information displayed on the display. F INPUT MODEPress to select the input mode when the same components are connected to both digital and analog jacks. G MA

35、STER VOLUME Turn to adjust the volume level of all speakers at the same time. H MUTINGPress to mute the sound. I MULTI CH INPress to select the audio directly from the components connected to the MULTI CH IN jacks. J INPUT SELECTOR Turn to select the input source to playback. K MOVIE, MUSIC Press to

36、 select sound fields (MOVIE, MUSIC). L A.F.D.Press to select A.F.D. mode. M 2CHPress to select 2CH STEREO mode. N TUNING +/Press to scan a station. O TUNING MODEPress to select the tuning mode. P MEMORY/ENTER Press to store a station or enter the selection when selecting the settings. Q VIDEO 3 IN/

37、PORTABLE AV IN jacks To connect a camcorder or video game. R AUTO CAL MIC jack Connects to the supplied ECM-AC2 optimizer microphone for the Auto Calibration function. S PHONES jackConnects to a headphone. 5 STR-K880/K900 About STR-K880 model the indicators on the display MEMORY LCR SLSSR SB SW LFES

38、P A SP B RDS STEREO MONOD.RANGE NEO:6 SLEEP OPT COAXHDMI96/24 DIGITAL EX;DTS-ES;PRO LOGIC IIx qaq;qg qh qdqfqs 21435678 9 NameFunction A SWLights up when the audio signal is output from the SUB WOOFER jack. B LFELights up when the disc being played back contains an LFE (Low Frequency Effect) channel

39、 and the LFE channel signal is actually being reproduced. C SP A/SP BLights up according to the speaker system used. However, these indicators do not light up if the speaker output is turned off or if a headphone is connected. D ;DIGITAL (EX) Lights up when Dolby Digital signals are input. “; DIGITA

40、L EX” lights up when Dolby Digital Surround EX signals are decoded. Note When playing a Dolby Digital format disc, be sure that you have made digital connections and that INPUT MODE is not set to “ANALOG”. NameFunction E ;PRO LOGIC (II)/ (IIx) Lights up when the receiver applies Pro Logic processing

41、 to 2 channel signals in order to output the center and surround channel signals. “; PRO LOGIC II” lights up when the Pro Logic II Movie/Music/ Game decoder is activated. “; PRO LOGIC IIx” lights up when the Pro Logic IIx Movie/ Music/Game decoder is activated. Note Dolby Pro Logic IIx decoding does

42、 not function for DTS format signals or for signals with a sampling frequency of more than 48 kHz. F DTS (-ES)/ (96/24) Lights up when DTS signals are input. “DTS-ES” lights up when DTS-ES signals are input. “DTS 96/24” lights up when the receiver is decoding DTS 96 kHz/24 bit signals. Note When pla

43、ying a DTS format disc, be sure that you have made digital connections and that INPUT MODE is not set to “ANALOG”. G NEO:6Lights up when DTS Neo:6 Cinema/Music decoder is activated. H MEMORYLights up when a memory function, such as Preset Memory, etc., is activated. NameFunction * Except for models

44、of area code E51. I Preset station indicators Lights up when using the receiver to tune in radio stations you have preset. For details on presetting radio stations. J Tuner indicators Lights up when using the receiver to tune in radio stations, etc. Note “RDS” appears for models of area code AEP, UK

45、 only. K D.RANGELights up when dynamic range compression is activated. L HDMI*Flashes when you select “HDMI A.” in the VIDEO menu. M COAXLights up when INPUT MODE is set to “AUTO” and the source signal is a digital signal being input through the COAXIAL jack, or when INPUT MODE is set to “COAX IN”.

46、N OPTLights up when INPUT MODE is set to “AUTO” and the source signal is a digital signal being input through the OPTICAL jack, or when INPUT MODE is set to “OPT IN”. O SLEEPLights up when the sleep timer is activated. P Playback channel indicators L R C SL SR S SB The letters (L, C, R, etc.) indicate the channels being played back. The boxes around the letters vary to show how the receiver downmixes the source sound. Front Left Front Right Center (monaural) Surround Left Surround Right Sur