Pioneer-VSX70-avr-sm维修电路原理图.pdf

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 Road, #04-01, Singapore 159936 PIONEER CORPORATION2013 2013 Printed in Japan VSX-1128-K RRV4420 AV Receiver VSX-1128-K VSX-1123-K VSX-70 VSX-1028-K THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks VSX-1128-KCUXEAC 120 V VSX-1123-KCUXESMAC 120 V VSX-70CUXEAC 120 V VSX-1028-KCUXEAC 120 V K-MZV MAR. RadioFans.CN 收音机爱 好者资料库 2VSX-1128-K 1234 A B C D E 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 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. 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 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 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. 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 as required) Earth ground AC Leakage Test (FOR USA MODEL ONLY) RadioFans.CN 收音机爱 好者资料库 3VSX-1128-K 5678 5678 A B C D E F CONTENTS SAFETY INFORMATION.2 1. SERVICE PRECAUTIONS.5 1.1 NOTES ON SOLDERING.5 1.2 NOTES ON REPLACING PARTS.5 1.3 SERVICE NOTICE.5 2. SPECIFICATIONS.6 3. BASIC ITEMS FOR SERVICE .8 3.1 CHECK POINTS AFTER SERVICING .8 3.2 JIGS LIST.8 3.3 PCB LOCATIONS.9 4. BLOCK DIAGRAM .12 4.1 OVERALL WIRING DIAGRAM .12 4.2 VIDEO BLOCK DIAGRAM.14 4.3 D-VIDEO BLOCK DIAGRAM.16 4.4 AUDIO BLOCK DIAGRAM.18 4.5 POWER SUPPLY BLOCK DIAGRAM.20 4.6 GND BLOCK DIAGRAM.22 5. DIAGNOSIS .24 5.1 TROUBLESHOOTING.24 5.2 ERROR INDICATIONS.31 5.3 PROTECTION CIRCUIT.33 5.4 IC INFORMATION .35 6. SERVICE MODE.36 6.1 TEST MODE.36 6.2 DEFAULT SETTINGS .38 7. DISASSEMBLY .39 8. EACH SETTING AND ADJUSTMENT.44 8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED.44 8.2 USB BACKUP.45 8.3 UPDATING OF THE FIRMWARE.47 8.4 IDLE CURRENT ADJUSTMENT.50 9. EXPLODED VIEWS AND PARTS LIST.52 9.1 PACKING SECTION.52 9.2 EXTERIOR SECION.54 10. SCHEMATIC DIAGRAM.58 10.1 MAIN ASSY.58 10.2 D-MAIN ASSY (1/10).60 10.3 D-MAIN ASSY (2/10).62 10.4 D-MAIN ASSY (3/10).64 10.5 D-MAIN ASSY (4/10).66 10.6 D-MAIN ASSY (5/10).68 10.7 D-MAIN ASSY (6/10).70 10.8 D-MAIN ASSY (7/10).72 10.9 D-MAIN ASSY (8/10).76 10.10 D-MAIN ASSY (9/10).78 10.11 D-MAIN ASSY (10/10).80 10.12 OPTCO and BRI-2 ASSYS.82 10.13 BRI-1 ASSY.84 10.14 VIDEO ASSY.86 10.15 BT and BTCNT ASSYS.88 10.16 AUDIO ASSY.90 10.17 CPU ASSY.92 10.18 AMP7 ASSY (1/2).94 10.19 AMP7 ASSY (2/2).96 10.20 FHDMI ASSY.98 10.21 INSEL, FRONT and HPMIC ASSYS .100 10.22 SMPS ASSY.102 RadioFans.CN 收音机爱 好者资料库 4VSX-1128-K 1234 A B C D E F 1234 11. PCB CONNECTION DIAGRAM .104 11.1 MAIN ASSY.104 11.2 D-MAIN ASSY.108 11.3 OPTCO ASSY.112 11.4 BRI-2 ASSY .113 11.5 BRI-1 ASSY .114 11.6 VIDEO ASSY .115 11.7 BT ASSY.116 11.8 BTCNT ASSY.117 11.9 AUDIO ASSY .