Pioneer-SCLX82-avr-sm电路图 维修手册.pdf

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1、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,

2、 Singapore 159936 PIONEER CORPORATION2009 2009 Printed in Japan SC-LX82 RRV3967 AUDIO/VIDEO MULTI-CHANNEL RECEIVER SC-LX82 SC-LX72 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks SC-LX82SYXJ5AC 220 V to 230 V SC-LX72SYXJ5AC 220 V to 230 V For detail

3、s, refer to Important Check Points for good servicing. T-ZZV JULY RadioFans.CN 收音机爱 好者资料库 2SC-LX82 1234 A B C D E F 1234 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

4、 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

5、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 T

6、O 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 vol

7、tage, 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

8、 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

9、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

10、 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 h

11、arm. 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

12、 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 3SC-LX82 5678 5678 A B C D E F Important Chec

13、k Points for Good Servicing In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures. 1. Product safety Please conform to product regulations (such as safety and radiation regulations), and maintain a saf

14、e servicing environment by following the safety instructions described in this manual. 1 Use specified parts for repair. Use genuine parts. Be sure to use important parts for safety. 2 Do not perform modifications without proper instructions. Please follow the specified safety methods when modificat

15、ion(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise. 3 Make sure the soldering of repaired locations is properly performed. When you solder while repairing, please be sure that there are no cold solder and other debris. Soldering should be f

16、inished with the proper quantity. (Refer to the example) 4 Make sure the screws are tightly fastened. Please be sure that all screws are fastened, and that there are no loose screws. 5 Make sure each connectors are correctly inserted. Please be sure that all connectors are inserted, and that there a

17、re no imperfect insertion. 6 Make sure the wiring cables are set to their original state. Please replace the wiring and cables to the original state after repairs. In addition, be sure that there are no pinched wires, etc. 7 Make sure screws and soldering scraps do not remain inside the product. Ple

18、ase check that neither solder debris nor screws remain inside the product. 8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord. Damaged power cords may lead to fire accidents, so please be sure that there are no damages. If you find a damaged power cord,

19、 please exchange it with a suitable one. 9 There should be no spark traces or similar marks on the power plug. When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if nec

20、essary. a Safe environment should be secured during servicing. When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely. 2. Adjustments To keep the original perf

21、ormance of the products, optimum adjustments and confirmation of characteristics within specification. Adjustments should be performed in accordance with the procedures/instructions described in this manual. 4. Cleaning For parts that require cleaning, such as optical pickups, tape deck heads, lense

22、s and mirrors used in projection monitors, proper cleaning should be performed to restore their performances. 3. Lubricants, Glues, and Replacement parts Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied. 5. Shipping mode and Shipping screws T

23、o protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual. RadioFans.CN 收音机爱 好者资料库 4SC-LX82 1234 A B C D E F 1234 CONTENTS S

24、AFETY INFORMATION.2 1. SERVICE PRECAUTIONS .6 1.1 NOTES ON SOLDERING .6 1.2 NOTES ON REPLACING PARTS .6 1.3 CAUTION.6 1.4 NOTES ON ASSEMBLING.7 1.5 NOTES ON BENDING SHIELD FFC.8 2. SPECIFICATIONS.9 2.1 SPECIFICATIONS.9 2.2 PANEL FACILITIES.10 3. BASIC ITEMS FOR SERVICE.20 3.1 CHECK POINTS AFTER SERV

25、ICING.20 3.2 PCB LOCATIONS .21 3.3 JIGS LIST.23 4. BLOCK DIAGRAM.24 4.1 OVERALL WIRING DIAGRAM.24 4.2 BLOCK DIAGRAM for AUDIO BLOCK.26 4.3 BLOCK DIAGRAM for DIGITAL VIDEO and NW (NetWork) AUDIO.28 4.4 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (1/4) .29 4.5 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (2/4) .30 4

26、.6 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (3/4) .31 4.7 BLOCK DIAGRAM for ANALOG VIDEO BLOCK (4/4) .32 4.8 BLOCK DIAGRAM for U-COM BLOCK.33 4.9 BLOCK DIAGRAM for POWER BLOCK.34 5. DIAGNOSIS.36 5.1 DIAGNOSIS FLOWCHART.36 5.2 CIRCUIT DESCRIPTION.52 6. SERVICE MODE .60 6.1 TEST MODE.60 7. DISASSEMBLY.62

27、8. EACH SETTING AND ADJUSTMENT .68 8.1 HOW TO UPDATE FIRMWARE.68 9. EXPLODED VIEWS AND PARTS LIST.78 9.1 PACKING SECTION.78 9.2 EXTERIOR SECTION.80 9.3 REAR SECTION.82 9.4 CHASSIS SECTION .84 9.5 FRONT SECTION.86 10. SCHEMATIC DIAGRAM .88 10.1 AUDIO ASSY .88 10.2 DSP ASSY (1/4).90 10.3 DSP ASSY (2/4).92 10.4 DSP ASSY (3/4).94 10.5 DSP ASSY (4/4).96 10.6 FRONT-HDMI ASSY .98 10.7 232C_CONTROL ASSY .100 10.8 DIGITAL MAIN ASSY (1/7).102 10.9 DIGITAL MAIN ASSY (2/7).108 10.10 DIGIT