Sony-STRK7100-rec-sm 电路图 维修手册.pdf

1 SERVICE MANUALUS Model STR-K7100 MULTI CHANNEL AV RECEIVER Amplifier section Power Output 1) Stereo mode (rated) (6 ohms, 1 kHz, THD 1%) 90 W + 90 W Surround mode (reference) (6 ohms, 1 kHz, THD 10%) RMS Output 2) FRONT: 140 W/ch CENTER: 140 W SURROUND: 140 W/ch 1) Measured under the following conditions: Area codePower requirements US120 V AC, 60 Hz 2) Reference power output for front, center and surround speakers. Depending on the sound field settings and the source, there may be no sound output. SPECIFICATIONS Inputs AnalogSensitivity: 800 mV/ 50 kohms Digital (Coaxial)Impedance: 75 ohms Outputs (Analog) AUDIO OUTVoltage: 800 mV/10 kohms SUB WOOFERVoltage: 2 V/1 kohm Tone Gain levels6 dB, 1 dB step Reproduction frequency range: 28 20,000 Hz FM tuner section Tuning range87.5 108.0 MHz AntennaFM wire antenna Antenna terminals75 ohms, unbalanced Intermediate frequency10.7 MHz Ver. 1.0 2007.03 9-887-608-01 2007C04-1 2007.03 Sony Corporation Home Audio Division Published by Sony Techno Create 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 trademarks of DTS, Inc. This receiver incorporates High-Definition Multimedia Interface (HDMITM) technology. HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. Continued on next page The XM name and related logos are registered trademarks of XM Satellite Radio Inc. AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 6 ohm loads, both channels driven, from 120 20,000 Hz; rated 90 watts per channel minimum RMS power, with no more than 1% total harmonic distortion from 250 milliwatts to rated output. RadioFans.CN 收音机爱 好者资料库 2 STR-K7100 AM tuner section Tuning range With 10-kHz tuning scale: 530 1,710 kHz 3) With 9-kHz tuning scale:531 1,710 kHz 3) AntennaLoop antenna Intermediate frequency450 kHz 3) You can change the AM tuning 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, 75 ohms COMPONENT VIDEO:Y: 1 Vp-p, 75 ohms PB/CB: 0.7 Vp-p, 75 ohms PR/CR: 0.7 Vp-p, 75 ohms 80 MHz HD Pass Through 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 PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. General Power requirements Area codePower requirements US120 V AC, 60 Hz Power output (DIGITAL MEDIA PORT) DC OUT:5 V, 700 mA Power consumption Area codePower consumption US170 W Power consumption (during standby mode) 0.3 W Dimensions (w/h/d) (Approx.) 430 157.5 316 mm (17 6 1/4 12 1/2 inches) including projecting parts and controls Mass (Approx.)8.0 kg (17 lb 11 oz) Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 3 STR-K7100 MODEL IDENTIFICATION BACK PANEL Part No. MODELPART No. US2-897-800-6s 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground SAFETY CHECK-OUT (US MODEL) 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 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 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” 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) Fig. A. Using an AC voltmeter to check AC leakage. 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.) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C 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 regulator should be set to about 350C. 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 viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur 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. Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. RadioFans.CN 收音机爱 好者资料库 4 TABLE OF CONTENTS 1. GENERAL Description and location of parts. 5 2. DISASSEMBLY 2-1. Case . 8 2-2. Back Panel Section. 9 2-3. Front Panel Section . 9 2-4. DIGITAL Board . 10 2-5. MAIN Board Section . 10 2-6. STANDBY Board . 11 3. TEST MODE. 12 4. FM TUNER CHECK.13 5. DIAGRAMS 5-1. Circuit Boards Location . 14 5-2. Block Diagram Tuner/Audio Section . 15 5-3. Block Diagram Digital Section .16 5-4. Block Diagram Video Section . 17 5-5. Block Diagram HDMI SW Section . 18 5-6. Block Diagram XM Section . 19 5-7. Block Diagram Key/Display Section . 20 5-8. Block Diagram Output/Power Section . 21 5-9. Printed Wiring Boards Main Section . 23 5-10. Schematic Diagram Main Section (1/2) . 24 5-11. Schematic Diagram Main Section (2/2) . 25 5-12. Printed Wiring Board Digital Section (1/2) . 26 5-13. Printed Wiring Board Digital Section (2/2) . 27 5-14. Schematic Diagram Digital Section (1/3) .28 5-15. Schematic Diagram Digital Section (2/3) .29 5-16. Schematic Diagram Digital Section (3/3) .30 5-17. Printed Wiring Boards Video Section . 31 5-18. Schematic Diagram Video Section . 32 5-19. Printed Wiring Board HDMI SW Section .33 5-20. Schematic Diagram HDMI SW Section . 34 5-21. Printed Wiring Board XM Section . 35 5-22. Schematic Diagram XM Section . 36 5-23. Printed Wiring Boards DCAC, Power Key Section .37 5-24. Schematic Diagram DCAC, Power Key Section . 37 5-25. Printed Wiring Board Display Section . 38 5-26. Schematic Diagram Display Section .39 5-27. Printed Wiring Board Power Section . 40 5-28. Schematic Diagram Power Section . 40 5-29. Printed Wiring Board DCDC Section . 41 5-30. Schematic Diagram DCDC Section . 41 6. EXPLODED VIEWS 6-1. Case Section . 55 6-2. Front Panel Section .56 6-3. Back Panel Section. 57 6-4. Chassis Section . 58 7. ELECTRICAL PARTS LIST. 59 STR-K7100 5 STR-K7100 SECTION 1 GENERALThis section is extracted from instruction manual. 5US Getting Started Description and location of parts Front panel Getting Started 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.F.D.MOVIEMUSICAUTO CALMUTING DISPLAYINPUT MODE INPUT SELECTOR MASTER VOLUME MULTI CHANNEL DECODING 375 q;9qaqsqdw;qfqgqhqjqkql 12864 NameFunction A ?/1 (on/standby) Press to turn the receiver on or off (page 27, 36, 37, 52, 81). BSPEAKERS (OFF/A/B/A+B) Press to select the speaker system (page 28). CDisplayThe current status of the selected component or a list of selectable items appears here (page 7). DMULTI CHANNEL DECODING lamp Lights up when multi channel audio is decoded (page 37). ERemote sensorReceives signals from remote commander. NameFunction F DISPLAYPress to select information displayed on the display (page 68). G INPUT MODEPress to select the input mode when the same components are connected to both digital and analog jacks (page 63). H MASTER VOLUME Turn to adjust the volume level of all speakers at the same time (page 33, 34, 36, 37). I MUTINGPress to mute the sound (page 34). J AUTO CALPress to activate the Auto Calibration function (page 29). continued 6US NameFunction K INPUT SELECTOR Turn to select the input source to playback (page 34, 36, 37, 53, 55, 63, 65, 69). L MOVIE, MUSIC Press to select sound fields (MOVIE, MUSIC) (page 49). M A.F.D.Press to select A.F.D. mode (page 47). N 2CHPress to select 2CH STEREO mode (page 51, 52). O TUNING +/Press to scan a station (page 53, 54). P TUNING MODEPress to select the tuning mode (page 55, 81). Q MEMORY/ENTER Press to store a station or enter the selection when selecting the settings (page 27). R VIDEO 3 IN/ PORTABLE AV IN jacks Connect to camcorder or video game (page 25, 34). S AUTO CAL MIC jack Connects to the supplied optimizer microphone for the Auto Calibration function (page 29). T PHONES jackConnects to a headphone (page 78). 7US Getting Started About the indicators on the display MEMORY LCR SLSSR SWLFE SP A SP BD.RANGEMONO ST COAX D;DTSOPTPL II CAT ;PL; 21435678 qdqs9q;qa NameFunction ASWLights up when the audio signal is output from the SUB WOOFER jack. BLFELights up when the disc being played back contains an LFE (Low Frequency Effect) channel and the LFE channel signal is actually being reproduced. CSP 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;DLights up when the receiver is decoding Dolby Digital signals. 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” (page 63). E;PL/ ;PL II “; PL” lights up when the receiver applies Pro Logic processing to 2 channel signals in order to output the center and surround channel signals. “; PL II” lights up when the Pro Logic II Movie or Music decoder is activated. NameFunction F OPTLights up when VIDEO 2 input is selected. However, “UNLOCK” appears on the display if no digital signal is input through the OPTICAL jack. “OPT” also lights up when SAT input is selected if INPUT MODE is set to “AUTO IN” and the source signal is a digital signal being input through the OPTICAL jack. INPUT MODE is set to “OPT IN” (page 63). G DTSLights up when the receiver is decoding DTS signals. Note When playing a DTS format disc, be sure that you have made digital connections and that INPUT MODE is not set to “ANALOG” (page 63). H Tuner indicators Lights up when using the receiver to tune in radio stations (page 52), etc. I Preset station indicators Lights up when using the receiver to tune in radio stations you have preset. For details on presetting radio stations, see page 54. J D.RANGELights up when dynamic range compression is activated (page 41). continued 8US NameFunction K MEMORYLights up when a memory function, such as Preset Memory (page 54), etc., is activated. L COAXLights up when INPUT MODE is set to “AUTO IN” and the source signal is a digital signal being input through the COAXIAL jack, or when INPUT MODE is set to “COAX IN” (page 63). M Playback channel indicators L R C SL SR S 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 Surround (monaural or the surround components obtained by Pro Logic processing) Example: Recording format (Front/ Surround): 3/2.1 Sound Field: A.F.D. AUTO LCR SLSR SW 6 STR-K7100 9US Getting Started Rear panel OPTICAL SAT IN VIDEO 2/ BD IN DVD IN COAXIAL DVD INVIDEO 2/BD INOUT AM L R OUTININ VIDEO INVIDEO INVIDEO INVIDEO OUT AUDIO OUT AUDIO INAUDIO INAUDIO IN CENTERSURROUNDFRONT A FRONT B LL L RR R SAT INDVD INVIDEO 1 INMONITOR OUT PB/CB PR/CR COMPONENT VIDEO SPEAKERS DIGITAL (ASSIGNABLE) ANTENNA DMPORT SACD/CD/CDRTV HDMI MONITOR DVDVIDEO 1 SUB WOOFER SAT XM Y LL R L RR AUDIO OUT VIDEO OUT 12 5346 ADIGITAL INPUT/OUTPUT section OPTICAL IN jack Connects to a DVD player, etc. The COAXIAL jack provides a better quality of loud sound (page 20, 24). COAXIAL IN jack HDMI IN/ OUT jacka) Connects to a DVD player, or a Blu-ray disc player. The image and the sound are output to a TV or a projector (page 22). Connect to a DIGITAL MEDIA PORT adapter (page 64). BCOMPONENT VIDEO INPUT/ OUTPUT section COMPONENT VIDEO INPUT/ OUTPUT jacka) Connects to a DVD player, TV, satellite tuner, etc. You can enjoy high quality image (page 19, 21, 24). Green Blue Red C SPEAKER section Connects to speakers (page 16). Connects to sub woofer (page 16). D VIDEO/AUDIO INPUT/OUT