Sony-AVDK800P-rec-sm 维修电路原理图.pdf
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1、AVD-K800PUS ModelCanadian ModelAEP ModelUK ModelE ModelSERVICE MANUALCOMPACT AV SYSTEMSony CorporationAudio GroupPublished by Sony Engineering Corporation9-877-319-032004I16-1 2004.09Ver 1.2 2004. 09Model Name Using Similar MechanismNEWMechanism TypeCDM79-DVBU22Optical Pick-up NameDBU-1SPECIFICATION
2、SAUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTAL HARMONIC DISTORTION:With 6 ohm loads, both channels driven, from 120 20,000 Hz; rated 60watts per channel minimum RMS power , with no more than 0.7 % total harmonic distortion from 250 milliwatts to rated output (USA model only).Amplifier sectionRate
3、d Power Output at Stereo Mode60 W + 60 W (6 ohms, at 1 kHz, THD 0.7 %)Reference Power OutputFront: 100 W/ch (6 ohms at 1 kHz, THD 10 %)Center*: 100 W (6 ohms at 1 kHz, THD 10 %)Surround*: 100 W/ch (6 ohms at 1 kHz, THD 10 %)Sub woofer*: 100 W (6 ohms at 100 Hz, THD 10 %)* Depending on the sound fiel
4、d settings and the source, there may be no sound output.Inputs (Analog)ANALOG IN:Sensitivity: 500 mVImpedance: 50 kilohmsOutputs (Analog)PHONES:Accepts low- and high-impedance headphonesCD/DVD systemLaserSemiconductor laser(DVD: = 650 nm)(CD: = 780 nm)Emission duration: continuousSignal format syste
5、mNTSC/PAL or NTSCFrequency response (at 2 CH STEREO mode)DVD (PCM): 2 Hz to 22 kHz (1.0 dB)CD: 2 Hz to 20 kHz (1.0 dB)Signal-to-noise ratioMore than 80 dBHarmonic distortionLess than 0.03 %FM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning rangeNorth American models: 87.5 108.0
6、 MHz (100 kHz step)Other models:87.5 108.0 MHz (50 kHz step)AntennaFM wire antennaAntenna terminals75 ohms, unbalancedIntermediate frequency10.7 MHzAM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning rangeNorth American models: 530 1,710 kHz (with the interval set at 10 kHz)531
7、1,710 kHz (with the interval set at 9 kHz)European models:531 1,602 kHz (with the interval set at 9 kHz)Mexican models:530 1,610 kHz (with the interval set at 10 kHz)Other models:530 1,610 kHz (with the interval set at 10 kHz)531 1,602 kHz (with the interval set at 9 kHz)AntennaAM loop antennaInterm
8、ediate frequency450 kHzVideo sectionInputsVideo:1 Vp-p 75 ohmsOutputsVideo:1 Vp-p 75 ohmsComponent: Y: 1 Vp-p 75 ohmsPB/CB: 0.7 Vp-p 75 ohmsPR/CR: 0.7 Vp-p 75 ohmsGeneralPower requirementsNorth American and Mexican models:120 V AC, 60 HzEuropean models:230 V AC, 50/60 HzOther models:120/220 V AC, 50
9、/60 HzPower consumptionCanadian models:240 VAOther models:190 WPower consumption (at Power Saving Mode):0.5 WDimensions (approx.)430 170 450 mm (17 6 7/8 17 7/8 inches)(w/h/d) incl. projecting partsMass (approx.)11.5 kg (25 lb 6 oz.)Operating temperature5C to 35C (41F to 95F)Operating humidity5 % to
10、 90 %Design and specifications are subject to change without notice.This system incorporates with Dolby* Digital and Dolby Pro Logic (II) adaptive matrixsurround decoder and the DTS* Digital Surround System.*Manufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D sym
11、bol are trademarks of Dolby Laboratories.* Manufactured under license from Digital Theater Systems, Inc.“DTS” and “DTS Digital Surround” are trademarks of Digital Theater Systems, Inc.AVD-K800P is the amplifier, CD/DVD and tuner system in HT-C800DP.RadioFans.CN 收音机爱 好者资料库2AVD-K800PLEAKAGEThe AC leak
12、age from any exposed metal part to earth Ground andfrom all exposed metal parts to any exposed metal part having areturn 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 RCAWT-54
13、0A. Follow the manufacturers instructions to use theseinstruments.2.A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3.Measuring the voltage drop across a resistor by means of aVOM or battery-operated AC voltmeter. The “limit” indicationis 0.75 V,
14、 so analog meters must have an accurate low-voltagescale. The Simpson 250 and Sanwa SH-63Trd are examples ofa passive VOM that is suitable. Nearly all battery operateddigital multimeters that have a 2V AC range are suitable. (SeeFig. A)Fig. A. Using an AC voltmeter to check AC leakage.0.15FTo Expose
15、d MetalParts on Set1.5kACvoltmeter(0.75V)Earth GroundCAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side
16、 of a tantalum capacitor may be damaged by heat.Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270Cduring repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when solder
17、ing or unsoldering.SAFETY CHECK-OUTAfter correcting the original service problem, perform the followingsafety checks 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 asdescribe
18、d below.Laser component in this product is capable of emitting radiationexceeding the limit for Class 1.This appliance is classified as aCLASS 1 LASER product.The CLASS 1 LASERPRODUCT MARKING islocated on the rear exterior.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LI
19、NE WITHMARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.Unleaded solderBoards requiring use of unleaded solder are printed with the lead-fr
20、ee mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed withthe lead free mark due to their particular size.) : LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C higher thanordinary
21、 solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long, so
22、 be careful! Strong viscosityUnleaded solder is more viscous (sticky, less prone to flow) thanordinary solder so use caution not to let solder bridges occur suchas on IC pins, etc. Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary sold
23、er.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NEREMPLACER CES COMPOSANTS QUE PAR DES PISES SONYDONT LES NUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPMEN
24、TS PUBLIS PAR SONY.The following cautionlabel is located insidethe apparatus.RadioFans.CN 收音机爱 好者资料库3AVD-K800PNOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecha
25、rged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.NOTES ON LASER DIODE EMISSION
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