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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 ONOFF VOLUME INPUT SELECTOR DIRECT POWER STANDBY PHONES A9 A-A9MK2-K RRV3941 INTEGRATED AMPLIFIER A-A9MK2-K A-A6MK2-K STEREO RECEIVER SX-A9MK2-K SX-A6MK2-K THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower
3、RequirementRemarks A-A9MK2-KSYXCN5AC 220 V to 230 V A-A6MK2-KSYXCN5AC 220 V to 230 V SX-A9MK2-KCUXCNAC 120 V SX-A6MK2-KCUXCNAC 120 V For details, refer to Important Check Points for good servicing. T-ZZK JUNE RadioFans.CN 收音机爱 好者资料库 2A-A9MK2-K 1234 A B C D E F 1234 SAFETY INFORMATION NOTICE (FOR CAN
4、ADIAN 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
5、pices de remplacement doivent avoir la mme dsignation. 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 pr
6、oducts 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 re
7、pair to a qualified service technician. WARNING This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65 ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIV
8、E 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 affo
9、rded 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 schema
10、tics 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
11、 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. SA
12、FETY 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 equiva
13、lent 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
14、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 3A-A9MK2-K 5678 5678 A B C D E F Important Check Points for Good Servi
15、cing 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 safe servicing environment
16、 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 modification(addition/change of
17、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 finished with the proper
18、 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 are no imperfect inserti
19、on. 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. Please check that neither
20、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, please exchange it wit
21、h 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 necessary. a Safe environm
22、ent 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 performance of the products
23、, 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, lenses and mirrors used in p
24、rojection 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 To protect products from
25、 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 4A-A9MK2-K 1234 A B C D E F 1234 CONTENTS SAFETY INFORMATION.2 1
26、. SERVICE PRECAUTIONS .5 1.1 NOTES ON SOLDERING .5 1.2 DISCHARGE OF POWER AMPLIFIER .5 2. SPECIFICATIONS.6 2.1 SPECIFICATIONS.6 2.2 PANEL FACILITIES.10 3. BASIC ITEMS FOR SERVICE.15 3.1 PCB LOCATIONS .15 4. BLOCK DIAGRAM.18 4.1 OVERALL WIRING DIAGRAM.18 4.2 OVERALL BLOCK DIAGRAM.20 5. DIAGNOSIS.22 5
27、.1 TROUBLESHOOTING .22 5.2 SPECIFICATION OF PROTECTIVE OPERATION.23 6. SERVICE MODE .23 7. DISASSEMBLY.24 8. EACH SETTING AND ADJUSTMENT .32 8.1 ADJUSTMENT.32 9. EXPLODED VIEWS AND PARTS LIST.33 9.1 PACKING SECTION (A-A9MK2-K).33 9.2 EXTERIOR SECTION (A-A9MK2-K) .34 9.3 PACKING SECTION (A-A6MK2-K).3
28、8 9.4 EXTERIOR SECTION (A-A6MK2-K) .40 9.5 PACKING SECTION (SX-A9MK2-K).44 9.6 EXTERIOR SECTION (SX-A9MK2-K).46 9.7 PACKING SECTION (SX-A6MK2-K).49 9.8 EXTERIOR SECTION (SX-A6MK2-K).50 10. SCHEMATIC DIAGRAM .54 10.1 FUNCTION and HEADPHONE ASSYS.54 10.2 FRONT, REMOCON, STATION, POWER LED and ENCODER
29、SW ASSYS.56 10.3 XM-READY ASSY.58 10.4 AMP LCH, AMP RCH, PROTECTION L-CH and PROTECTION R-CH ASSYS.60 10.5 REG IC, SUB TRANS, POWER SW and MAIN ASSYS.62 11. PCB CONNECTION DIAGRAM .64 11.1 FANCTION and HEADPHONE ASSYS .64 11.2 FRONT, REMOCON, POWER LED and ENCODER SW ASSYS .66 11.3 STATION ASSY.68 1
30、1.4 XM-READY ASSY.70 11.5 AMP LCH, PROTECTION L-CH and SPEAKER L-CH ASSY .72 11.6 AMP RCH, PROTECTION R-CH and SPEAKER R-CH ASSY.74 11.7 REG IC and MAIN ASSYS.76 11.8 SUB TRANS and POWER SW ASSYS .78 12. PCB PARTS LIST .79 RadioFans.CN 收音机爱 好者资料库 5A-A9MK2-K 5678 5678 A B C D E F 1. SERVICE PRECAUTIONS 1.1 NOTES ON SOLDERING 1.2 DISCHARGE OF POWER AMPLIFIER 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 spec
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