Pioneer-VSX52TX-avr-sm维修电路原理图.pdf

ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, 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 Road, #04-01, Singapore 159936 PIONEER CORPORATION 2004 MASTER VOLUME DVD/LDTV/SATDVR/VCRVIDEO1 CD CD-R/ TAPE/MD STANDBY/ON MULTI JOG TUNERVIDEO2 VSX-52TXAUDIO/VIDEO MULTI-CHANNEL RECEIVER ? LISTENING MODE SELECT ENTER VSX-52TX RRV2977 AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-52TX VSX-1014TX-K THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks VSX-52TXKUXJ/CAAC120V VSX-1014TX-KKUXJCAC120V For details, refer to Important symbols for good services. T-ZZR JUNE 2004 printed in Japan RadioFans.CN 收音机爱 好者资料库 VSX-52TX 2 1234 1234 C D F A B E SAFTY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. 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. 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. WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 Proposition 65 NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE (POUR MODLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pices de remplacement doivent avoir la mme dsignation. ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURN- ING 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 replacement 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. The 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 issued 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. (FOR USA MODEL ONLY) 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 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 a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA. Device under test Leakage current tester Earth ground Reading should not be above 0.5 mA Also test with plug reversed (Using AC adapter plug as required) Test all exposed metal surfaces AC Leakage Test RadioFans.CN 收音机爱 好者资料库 VSX-52TX 3 5678 56 7 8 C D F A B E CONTENTS SAFTY INFORMATION.2 1. SPECIFICATIONS.5 2. EXPLODED VIEWS AND PARTS LIST.6 2.1 PACKING.6 2.2 EXTERIOR SECTION .8 2.3 CHASSIS SECTION.10 2.4 REAR PANEL SECTION .12 2.5 HEAT SINK SECTION.14 2.6 FRONT PANEL SECTION.16 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .18 3.1 BLOCK DIAGRAM.18 3.1.1 AUDIO SECTION.18 3.1.2 VIDEO and DISPLAY SECTIONS.20 3.1.3 DSP SECTION.22 3.1.4 POWER SUPPLY SECTION.24 3.2 OVERALL WIRING DIAGRAM .26 3.3 MULTI CH I/O and AUDIO CONNECT ASSYS .28 3.4 COMPOSITE V ASSY .30 3.5 S VIDEO ASSY.32 3.6 COMPONENT ASSY.34 3.7 OPTICAL-IN,H.P,FRONT-IN,FRONT-IN CONNECT and 12VTRIG ASSYS.36 3.8 MAIN CONTROL ASSY (1/3).38 3.9 MAIN CONTROL ASSY (2/3).40 3.10 MAIN CONTROL ASSY (3/3).42 3.11 DSP ASSY (1/2) .44 3.12 DSP ASSY (2/2) .46 3.13 VOLUME, DISPLAY and MULTI JOG ASSYS.48 3.14 POWER AMP IN and POWER PROTECT ASSYS .50 3.15 POWER AMP-L and POSI 1 L ASSYS.52 3.16 POWER AMP-R and POSI 1 R ASSYS .54 3.17 REGULATOR ASSY .56 3.18 TRANS 2-1, TRANS 2-2, DIODE, VH TR and SP/PS ASSYS.58 Important symbols for good services In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 2. Adjustments To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed. 3. Cleaning For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances. 5. Lubricants, glues, and replacement parts Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used. 4. Shipping mode and shipping screws To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary. 1. Product safety You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual. RadioFans.CN 收音机爱 好者资料库 VSX-52TX 4 1234 1234 C D F A B E 3.19 REAR TOP, TRANS SIDE, TRANS 1 and PRIMARY ASSYS.60 4. PCB CONNECTION DIAGRAM .62 4.1 MULTI CH I/O ASSY.63 4.2 AUDIO CONNECT ASSY .64 4.3 COMPOSITE V ASSY.65 4.4 S VIDEO ASSY.66 4.5 VIDEO SIDE and OPTICAL-IN ASSYS .67 4.6 COMPONENT ASSY.68 4.7 FRONT IN and FRONT-IN CONNECT ASSYS.69 4.8 MAIN CONTROL ASSY.70 4.9 DISPLAY ASSY.74 4.10 HEADPHONE, VOLUME and MULTI JOG ASSYS.76 4.11 POWER AMP IN ASSY.78 4.12 12V TRIGGER ASSY.79 4.13 DSP ASSY.80 4.14 POWER PROTECT, POWER AMP-L and POSI 1 L ASSYS.82 4.15 POWER AMP-R and POSI 1 R ASSYS.86 4.16 REGULATOR ASSY.90 4.17 SP / PS ASSY.94 4.18 TRANS 2-1, DIODE and VH TR ASSYS.96 4.19 TRANS SIDE ASSY.98 4.20 TRANS 2-2, TRANS 1 and PRIMARY ASSYS.100 4.21 REAR TOP ASSY .102 5. PCB PARTS LIST .103 6. ADJUSTMENT .113 7. GENERAL INFORMATION.114 7.1 DIAGNOSIS.114 7.1.1 PROTECTION CIRCUIT CONTROL SPECIFICATION.114 7.1.2 HOW TO DIAGNOSE THE AMPLIFIER SECTION .116 7.1.3 HOW TO DIAGNOSE THE UNIT WITH THE POWER AMPLIFIER SECTION REMOVED .117 7.1.4 DISASSEMBLY.