Pioneer-SXLX70SW-amr-sm电路图 维修手册.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 2007 SX-LX70SW RRV3674 AUDIO MULTI-CHANNEL RECEIVER SUBWOOFER SX-LX70SW ACCESSORY BOX AS-LX70 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). This product is component of system. ModelTypePower RequirementRemarks SX-LX70SWKUCXTWAC 120 V AS-LX70XJ/UC- ComponentSystemService ManualRemarks H5.1CH SURROUND SYSTEMHTS-LX70- AUDIO MULTI-CHANNEL RECEIVER SUBWOOFERSX-LX70SW/KUCXTWRRV3674This manual ACCESSORY BOXAS-LX70/XJ/UCRRV3674This manual SATELLITE SPEAKERSSP-LX70ST/XTW/WL5RRV3658 For details, refer to Important Check Points for good servicing. T-ZZV SEPT. 2007 printed in Japan RadioFans.CN 收音机爱 好者资料库 SX-LX70SW 2 1234 1234 C D F A B E SAFETY INFORMATION 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. 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) 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 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. RadioFans.CN 收音机爱 好者资料库 SX-LX70SW 3 5678 56 7 8 C D F A B E RadioFans.CN 收音机爱 好者资料库 SX-LX70SW 4 1234 1234 C D F A B E CONTENTS SAFETY INFORMATION. 2 1. SERVICE PRECAUTIONS. 5 2. SPECIFICATIONS. 6 2.1 ACCESSORIES. 6 2.2 SPECIFICATIONS. 7 2.3 PANEL FACILITIES. 8 3. BASIC ITEMS FOR SERVICE. 12 3.1 CHECK POINTS AFTER SERVICING. 12 3.2 PCB LOCATIONS . 13 3.3 JIGS LIST . 14 3.4 CLEANING. 14 4. BLOCK DIAGRAM. 16 4.1 OVERALL WIRING CONNECTION DIAGRAM . 16 4.2 OVERALL BLOCK DIAGRAM. 18 5. DIAGNOSIS. 20 5.1 HDMI TROUBLESHOOTING. 20 5.2 DSP TROUBLESHOOTING. 27 5.3 XM TROUBLESHOOTING. 42 5.4 SIRIUS TROUBLESHOOTING. 44 5.5 CIRCUIT DESCRIPTION OF DIGITAL AMP. SECTION . 45 5.6 SPECIFICATIONS FOR THE PROTECTION CIRCUITS FOR THE DIGITAL AMPLIFIER. 46 5.7 CONDITIONS FOR SWITCHING THE ROTAIONS SPEED OF THE FAN. 47 5.8 ERROR LIST. 48 6. SERVICE MODE. 52 6.1 TEST MODE. 52 6.2 SERVICE TEST MODE . 54 7. DISASSEMBLY. 57 8. EACH SETTING AND ADJUSTMENT . 62 8.1 ADJUSTMENT. 62 8.2 HOW TO UPDATE THE FLASH ROMS FOR VARIOUS MICROCOMPUTERS. 62 8.3 HOW TO UPDATE THE DSP FLASH ROM BY PLAYING BACK A CD. 64 9. EXPLODED VIEWS AND PARTS LIST. 66 9.1 PACKING (SX-LX70SW). 66 9.2 PACKING (AS-LX70). 68 9.3 EXTERIOR SECTION. 70 9.4 RECEIVER UNIT . 72 9.5 DISPLAY UNIT. 74 9.6 REMOTE CONTROL . 76 10. SCHEMATIC DIAGRAM. 78 10.1 MAIN ASSY (1/7). 78 10.2 MAIN ASSY (2/7). 80 10.3 MAIN ASSY (3/7). 82 10.4 MAIN ASSY (4/7). 84 10.5 MAIN ASSY (5/7). 86 10.6 MAIN ASSY (6/7). 88 10.7 MAIN ASSY (7/7). 90 10.8 AMP ASSY (1/2) . 92 10.9 AMP ASSY (2/2) . 94 10.10 CONNECTION and EARTH ASSYS. 96 10.11 HDMI ASSY (1/2). 98 10.12 HDMI ASSY (2/2). 100 10.13 AINB ASSY. 102 10.14 FL, REMOCON and BTOB ASSYS . 104 10.15 POWER SUPPLY UNIT. 106 11. PCB CONNECTION DIAGRAM . 109 11.1 MAIN ASSY . 110 11.2 AMP ASSY. 114 11.3 CONNECTION ASSY . 118 11.4 EARTH ASSYS. 119 11.5 HDMI ASSY . 120 11.6 BTOB ASSY. 124 11.7 AINB ASSY. 125 11.8 FL ASSY . 127 11.9 POWER SUPPLY UNIT. 129 12. PCB PARTS LIST. 131 SX-LX70SW 5 5678 56 7 8 C D F A B E 1. SERVICE PRECAUTIONS CAUTION Ask users to bring both subwoofer receiver and the display unit together when servicing. NOTES ON SOLDERING 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 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 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, lead-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. SX-LX70SW 6 1234 1234 C D F A B E 2. SPECIFICATIONS 2.1 ACCESSORIES Accessories Remote Control (AXD7512) AA/LR6 Alkaline Batteries Opti