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, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra

2、Road, #04-01, Singapore 159936 PIONEER CORPORATION2013 2013 Printed in Japan VSX-523-K RRV4418 AV Receiver VSX-523-K THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks VSX-523-KCUXESMAC 120 V K-MZV MAR. RadioFans.CN 收音机爱 好者资料库 2VSX-523-K 1234 A B C D E

3、 F 1234 SAFETY INFORMATION WARNING This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm. Health it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have b

4、een 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. If you are not qualified to perform the repair of this product properly and safely,

5、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 technician. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water

6、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 overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into

7、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 CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. 2. PRODUCT SAFETY NOTICE Many e

8、lectrical 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 replacement components rated for voltage, wattage, etc. Replacement parts which hav

9、e 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. The use of a substitute replacement component which does not have the same safety

10、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 issued from time to time. For the latest information, always consult the current

11、PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER. Leakage current tester Reading should not be above 0.5 mA Device under test Test all exposed metal surfaces Also test with plug reversed (Using AC adapter plug

12、 as required) Earth ground AC Leakage Test (FOR USA MODEL ONLY) RadioFans.CN 收音机爱 好者资料库 3VSX-523-K 5678 5678 A B C D E F CONTENTS SAFETY INFORMATION.2 1. SERVICE PRECAUTIONS.4 1.1 NOTES ON SOLDERING.4 1.2 NOTES ON REPLACING PARTS.4 1.3 SERVICE NOTICE.4 2. SPECIFICATIONS.5 3. BASIC ITEMS FOR SERVICE

13、.6 3.1 CHECK POINTS AFTER SERVICING .6 3.2 JIGS LIST.6 3.3 PCB LOCATIONS.7 4. BLOCK DIAGRAM .8 4.1 OVERALL WIRING DIAGRAM .8 4.2 AUDIO BLOCK DIAGRAM.10 4.3 POWER SUPPLY BLOCK DIAGRAM.12 4.4 GND BLOCK DIAGRAM.14 5. DIAGNOSIS .16 5.1 TROUBLESHOOTING.16 5.2 USB/iPod ERROR MESSAGE.21 5.3 PROTECTION CIRC

14、UIT.22 5.4 IC INFORMATION .24 6. SERVICE MODE.27 7. DISASSEMBLY .31 8. EACH SETTING AND ADJUSTMENT.37 8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED.37 8.2 UPDATING OF THE FIRMWARE.38 8.3 IDLE CURRENT ADJUSTMENT.43 9. EXPLODED VIEWS AND PARTS LIST.44 9.1 PACKING SECTION.44 9.2 EXTERIO

15、R SECTION .46 10. SCHEMATIC DIAGRAM.50 10.1 MAIN ASSY (1/2).50 10.2 MAIN ASSY (2/2).52 10.3 D-MAIN ASSY (1/3).54 10.4 D-MAIN ASSY (2/3).56 10.5 D-MAIN ASSY (3/3).58 10.6 OPTCO, FUSB and CONCT ASSYS.60 10.7 CPU ASSY.62 10.8 AMP5 ASSY (1/2).64 10.9 AMP5 ASSY (2/2).66 10.10 INSEL, FRONT and HPMIC ASSYS

16、 .68 10.11 SMPS ASSY.70 10.12 REG ASSY .72 11. PCB CONNECTION DIAGRAM.74 11.1 MAIN ASSY.74 11.2 D-MAIN, OPTCO and FUSB ASSYS.78 11.3 CONCT and CPU ASSYS .82 11.4 AMP5 ASSY .86 11.5 INSEL, FRONT and HPMIC ASSYS .88 11.6 SMPS and REG ASSYS.92 11.7 WG, G-L and G-R ASSYS.96 12. PCB PARTS LIST.97 RadioFa

17、ns.CN 收音机爱 好者资料库 4VSX-523-K 1234 A B C D E F 1234 1. SERVICE PRECAUTIONS 1.1 NOTES ON SOLDERING 1.2 NOTES ON REPLACING PARTS 1.3 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 i

18、ron that can meet specifications for 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

19、iron must be set to around 373 C in general, 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, l

20、ead-free solders have higher bond strengths 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

21、listed below is difficult to replace as a discrete component part. When the part listed in the table is defective, replace whole Assy. Assy Name D-MAIN Assy 5V SW Power Supply ICIC with heat-padIC2007 INTERFACE ICIC with heat-padIC2012 D-MAIN 1.2 V Power Supply ICIC with heat-padIC2013 D-MAIN 1.8 V

22、Power Supply ICIC with heat-padIC2015 DSP ICIC with heat-padIC2016 Low Dropout Power Supply ICIC with heat-padIC2017 APPLE AUTHENTICATION ICIC with heat-padIC2020 USB 5 V Power Supply ICIC with heat-padIC2021 Parts that is Difficult to Replace Ref No.FunctionPart No.Remarks Discharging For more deta

23、il, please refer to 7. DISASSEMBLY - 1. Discharging. RadioFans.CN 收音机爱 好者资料库 5VSX-523-K 5678 5678 A B C D E F 2. SPECIFICATIONS Amplifier section Continuous 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. Fr

24、ont (stereo). 80 W + 80 W Power output (1 kHz, 6 , 1 %).140 W per channel Guaranteed speaker impedance.6 to 16 * Measured pursuant to the Federal Trade Commissions Trade Regulation rule on Power Output Claims for Amplifiers * Measured by Audio Spectrum Analyzer Audio Section Input (Sensitivity/Impedance) LINE.200 mV/47 k Signal-to-Noise Ratio (IHF, short circuited, A network) LINE.98 dB Signal-to-Noise Ratio EIA, at 1 W (1 kHz) LINE.79 dB Video