Pioneer-XRA770-cs-sm 电路图 维修手册.pdf
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1、ORDER NO. PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD
2、. 253 Alexandra Road, #04-01, Singapore 159936 ? ? ? ? ? ? PIONEER ELECTRONIC CORPORATION 1998 RRV2065 CONTENTS T ZZK DEC. 1998 Printed in Japan 1. SAFETY INFORMATION . 2 2. EXPLODED VIEWS AND PARTS LIST. 4 3. SCHEMATIC DIAGRAM . 16 4. PCB CONNECTION DIAGRAM. 34 5. PCB PARTS LIST . 49 6. ADJUSTMENT
3、. 57 7. GENERAL INFORMATION . 63 7.1 PARTS . 63 7.1.1 IC . 63 7.1.2 DISPLAY. 69 7.2 DISASSEMBLY . 71 7.3 BLOCK DIAGRAM. 74 8. PANEL FACILITIES AND SPECIFICATIONS . 76 STEREO CD CASSETTE DECK RECEIVER XR-A880 XR-A770 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Type Model Power Re
4、quirementRemarks XR-A880XR-A770 KUCXJAC120V YPWXJAC240V XR-A880 RadioFans.CN 收音机爱 好者资料库 XR-A880, XR-A770 2 1. SAFETY 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
5、 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
6、 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 reproductiv
7、e 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 (fusi
8、ble 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
9、. 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, et
10、c. 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
11、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 informatio
12、n, 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 a
13、nd 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, scr
14、ewheads, 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
15、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 XR-A880, XR-A770 3 LABEL CHECK (for YPWXJ type) Additional Laser Caution 1.Laser Interlock Mechanism The position of the switch (S8501) for detecting loading state is detect
16、ed by the system microprocessor, and the design prevents laser diode oscillation when the switch (S8501) is pressed physically. Thus, the interlock will no longer function if the switch (S8501) is released physically and deliberatery. The interlock also does not function in the test mode . Laser dio
17、de oscillation will continue, if pin 62 of LA9240ML (IC8101) on the CD ASSY mounted on the $M Loading Mechanism assembly is connected to GND, or else the terminals of Q8101 are shorted to each other (fault condition). 2.When the cover is opened, close viewing of the objective lens with the naked eye
18、 will cause exposure to a Class 1 laser beam. : Refer to page 62. IMPORTANT THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1. SERVICING OPERATION OF THE APPARATUS SHOULD BE DONE BY A SPECIALLY INSTRUCTED PERSON. LASER DIODE CHARACTERISTICS MAXIMUM OUTPUT POWER: 1.3 mW WAVELENGTH: 790 nm 25 nm Printe
19、d on the Rear Panel RadioFans.CN 收音机爱 好者资料库 4 XR-A880, XR-A770 2.1 PACKING VOL KARAOKESFC DISCDISCDISC CLEAR STATION REMOTE CONTROL UNIT CU-XR025 MONOBAND PGMREPEATRANDOM AUX P.BASSDISPLAY SLEEPPOWER 6 1 3 7 9(1/2) 8(1/2) 8(2/2) 9(2/2) 10 2 13 14 11 15 4 5 KUCXJ Type Only KUCXJ Type Only KUCXJ Type
20、Only YPWXJ Type Only 12 9 13 2. EXPLODED VIEWS AND PARTS LIST NOTES: Parts marked by NSP and can not be supplied. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screws adjacen
21、t to mark on the product are used for disassembly. 5 XR-A880, XR-A770 1FM AntennaADH7004 2Operating InstructionsXRE3012 (English/French) 3AM Loop AntennaXTB3001 4Remote Control UnitSee Contrast table (2) 5Battery CoverAZA7204 NSP6Dry Cell Battery (R6P, AA)VEM-013 7Polyethylene BagZ21-038 (0.03 230 3
22、40) 8Front PadSee Contrast table (2) 9Rear PadSee Contrast table (2) 10Packing CaseSee Contrast table (2) (1) PACKING PARTS LIST Mark No. Description Part No. 11Packing SheetAHG7049 NSP12Warranty CardSee Contrast table (2) 13Power CordSee Contrast table (2) NSP14Polyethylene BagSee Contrast table (2
23、) 15Operating InstructionsSee Contrast table (2) Mark No. Description Part No. (2) CONTRAST TABLE XR-A880/KUCXJ, YPWXJ, XR-A770/KUCXJ and YPWXJ are constructed the same except for the following : MarkNo.Symbol and Description Part No. Remarks XR-A880XR-A880XR-A770XR-A770 /KUCXJ/YPWXJ/KUCXJ/YPWXJ 4Re
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