Pioneer-VSX523K-avr-sm2 维修电路原理图.pdf
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1、ORDER NO.PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, JapanPIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road
2、, #04-01, Singapore 159936 PIONEER CORPORATION20132013 Printed in JapanVSX-523-KRRV4418AV ReceiverVSX-523-KTHIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).ModelTypePower RequirementRemarksVSX-523-KCUXESMAC 120 VK-MZV MAR.RadioFans.CN 收音机爱 好者资料库2VSX-523-K1234ABCDEF1234SAFETY INFORMATI
3、ON WARNINGThis product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm.Health & Safety Code Section 25249.6 - Proposition 65This service manual is intended for qualified service technicians; it is not meant for the casual do-it-you
4、rselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
5、 If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.1. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service techn
6、ician.LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal ov
7、erlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120 V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECT
8、ED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.2. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using re
9、placement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual.Th
10、e use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are i
11、ssued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER. LeakagecurrenttesterReading shouldnot be above0.5 mADeviceundertestTest allexpo
12、sed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)EarthgroundAC Leakage Test(FOR USA MODEL ONLY)RadioFans.CN 收音机爱 好者资料库3VSX-523-K56785678ABCDEFCONTENTS SAFETY INFORMATION.21. SERVICE PRECAUTIONS.41.1 NOTES ON SOLDERING.41.2 NOTES ON REPLACING PARTS.41.3 SERVICE NOTICE.42.
13、 SPECIFICATIONS.53. BASIC ITEMS FOR SERVICE .63.1 CHECK POINTS AFTER SERVICING .63.2 JIGS LIST.63.3 PCB LOCATIONS.74. BLOCK DIAGRAM .84.1 OVERALL WIRING DIAGRAM .84.2 AUDIO BLOCK DIAGRAM.104.3 POWER SUPPLY BLOCK DIAGRAM.124.4 GND BLOCK DIAGRAM.145. DIAGNOSIS .165.1 TROUBLESHOOTING.165.2 USB/iPod ERR
14、OR MESSAGE.215.3 PROTECTION CIRCUIT.225.4 IC INFORMATION .246. SERVICE MODE.277. DISASSEMBLY .318. EACH SETTING AND ADJUSTMENT.378.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED.378.2 UPDATING OF THE FIRMWARE.388.3 IDLE CURRENT ADJUSTMENT.439. EXPLODED VIEWS AND PARTS LIST.449.1 PACKING
15、 SECTION.449.2 EXTERIOR SECTION .4610. SCHEMATIC DIAGRAM.5010.1 MAIN ASSY (1/2).5010.2 MAIN ASSY (2/2).5210.3 D-MAIN ASSY (1/3).5410.4 D-MAIN ASSY (2/3).5610.5 D-MAIN ASSY (3/3).5810.6 OPTCO, FUSB and CONCT ASSYS.6010.7 CPU ASSY.6210.8 AMP5 ASSY (1/2).6410.9 AMP5 ASSY (2/2).6610.10 INSEL, FRONT and
16、HPMIC ASSYS .6810.11 SMPS ASSY.7010.12 REG ASSY .7211. PCB CONNECTION DIAGRAM.7411.1 MAIN ASSY.7411.2 D-MAIN, OPTCO and FUSB ASSYS.7811.3 CONCT and CPU ASSYS .8211.4 AMP5 ASSY .8611.5 INSEL, FRONT and HPMIC ASSYS .8811.6 SMPS and REG ASSYS.9211.7 WG, G-L and G-R ASSYS.9612. PCB PARTS LIST.974VSX-523
17、-K1234ABCDEF12341. SERVICE PRECAUTIONS1.1 NOTES ON SOLDERING1.2 NOTES ON REPLACING PARTS1.3 SERVICE NOTICE For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a soldering iron that can meet specifications for
18、use with lead-free solders for repairs accompanied by reworking of soldering. Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in g
19、eneral, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.Do NOT use a soldering iron whose tip temperature cannot be controlled.Compared with eutectic solders, lead-free solders have higher bond stren
20、gths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.The part listed below is difficult to replace as a
21、 discrete component part.When the part listed in the table is defective, replace whole Assy.Assy NameD-MAIN Assy5V SW Power Supply ICIC with heat-padIC2007INTERFACE ICIC with heat-padIC2012D-MAIN 1.2 V Power Supply ICIC with heat-padIC2013D-MAIN 1.8 V Power Supply ICIC with heat-padIC2015DSP ICIC wi
22、th heat-padIC2016Low Dropout Power Supply ICIC with heat-padIC2017APPLE AUTHENTICATION ICIC with heat-padIC2020USB 5 V Power Supply ICIC with heat-padIC2021Parts that is Difficult to ReplaceRef No.FunctionPart No.Remarks Discharging For more detail, please refer to 7. DISASSEMBLY - 1. Discharging. 5
23、VSX-523-K56785678ABCDEF2. SPECIFICATIONSAmplifier sectionContinuous average power output of 80 watts* per channel, min., at 8 ohms, from 20 Hz to 20 000 Hz with no more than 0.08 %* total harmonic distortion. Front (stereo). 80 W + 80 WPower output (1 kHz, 6 , 1 %).140 W per channelGuaranteed speake
24、r impedance.6 to 16 * Measured pursuant to the Federal Trade Commissions TradeRegulation rule on Power Output Claims for Amplifiers* Measured by Audio Spectrum AnalyzerAudio SectionInput (Sensitivity/Impedance) LINE.200 mV/47 kSignal-to-Noise Ratio (IHF, short circuited, A network) LINE.98 dBSignal-
25、to-Noise Ratio EIA, at 1 W (1 kHz) LINE.79 dBVideo SectionSignal level Composite .1 Vp-p (75 )Tuner SectionFrequency Range (FM) . 87.5 MHz to 108 MHzAntenna Input (FM).75 unbalancedFrequency Range (AM) .530 kHz to 1700 kHzAntenna (AM) .Loop antennaDigital In/Out SectionHDMI terminal .Type A (19-pin)
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