Pioneer-SCLX88-avr-sm电路图 维修手册.pdf

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1、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

2、Road, #04-01, Singapore 159936 PIONEER CORPORATION2014 2014 Printed in Japan SC-89 RRV4551 AV RECEIVER SC-89 SC-87 SC-LX88 SC-LX78 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). THIS SERVICE MANUAL SHOULD BE USED TOGETHER WITH THE FOLLOWING MANUAL(S). ModelTypePower RequirementRema

3、rks SC-89CUXJAC 120V SC-87CUXJAC 120V SC-LX88JXJAC 100V SC-LX78JXJAC 100V Model No.Order No.Remarks SC-89, SC-87RRV4550BLOCK DIAGRAM, EXPLODED VIEWS AND PARTS LIST etc. K-FZV SEPT. RadioFans.CN 收音机爱 好者资料库 2SC-89 1234 A B C D E F 1234 SAFETY INFORMATION 1. SAFETY PRECAUTIONS The following check shoul

4、d 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 expo

5、sed 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

6、 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 inspect

7、ion 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 m

8、arking 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

9、 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.

10、 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 co

11、ntain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. 56 noi t isoporP - 6.94252 no i t ceS edoC ytefaS it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have been t

12、rained 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 s

13、hould 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-89 5678 5678 A B C D E F CONTENTS SAFETY INFORMATION.2 10. SCHEMATIC DIAGRAM.6 10.1 OVERALL WIRING DIAGRAM .6 10.2 AUDIO ASSY (1/2).8 10.3 AUDIO ASSY (2/2).10 10.4 AUDIO ASSY.12 10.5 AU

14、DIO ASSY.14 10.6 DAC HIGH ASSY (1/4) .16 10.7 DAC HIGH ASSY (2/4) .18 10.8 DAC HIGH ASSY (3/4) .20 10.9 DAC HIGH ASSY (4/4) .22 10.10 DAC HIGH ASSY.24 10.11 FRONT HDMI USB ASSY .26 10.12 USB RECT ASSY.28 10.13 USB DAC ASSY (SC-89).30 10.14 HDBT ASSY (SC-89).32 10.15 DIGITAL MAIN HD ASSY (SC-89) (1/1

15、2) .34 10.16 DIGITAL MAIN HD ASSY (SC-89) (2/12) .36 10.17 DIGITAL MAIN HD ASSY (SC-89) (3/12) .38 10.18 DIGITAL MAIN HD ASSY (SC-89) (4/12) .40 10.19 DIGITAL MAIN HD ASSY (SC-89) (5/12) .42 10.20 DIGITAL MAIN HD ASSY (SC-89) (6/12) .44 10.21 DIGITAL MAIN HD ASSY (SC-89) (7/12) .46 10.22 DIGITAL MAI

16、N HD ASSY (SC-89) (8/12) .48 10.23 DIGITAL MAIN HD ASSY (SC-89) (9/12) .50 10.24 DIGITAL MAIN HD ASSY (SC-89) (10/12) .52 10.25 DIGITAL MAIN HD ASSY (SC-89) (11/12) .54 10.26 DIGITAL MAIN HD ASSY (SC-89) (12/12) .56 10.27 DIGITAL MAIN ASSY (SC-87) (1/12).58 10.28 DIGITAL MAIN ASSY (SC-87) (2/12).60

17、10.29 DIGITAL MAIN ASSY (SC-87) (3/12).62 10.30 DIGITAL MAIN ASSY (SC-87) (4/12).64 10.31 DIGITAL MAIN ASSY (SC-87) (5/12).66 10.32 DIGITAL MAIN ASSY (SC-87) (6/12).68 10.33 DIGITAL MAIN ASSY (SC-87) (7/12).70 10.34 DIGITAL MAIN ASSY (SC-87) (8/12).72 10.35 DIGITAL MAIN ASSY (SC-87) (9/12).74 10.36

18、DIGITAL MAIN ASSY (SC-87) (10/12).76 10.37 DIGITAL MAIN ASSY (SC-87) (11/12).78 10.38 DIGITAL MAIN ASSY (SC-87) (12/12).80 10.39 INTERFACE ASSY.82 10.40 COMPONENT ASSY.84 10.41 COMPONENT ASSY.86 10.42 COMPOSITE ASSY.88 10.43 MIC HP ASSY.90 10.44 DISPLAY ASSY .92 10.45 DISPLAY ASSY .94 10.46 VOL ASSY

19、.96 10.47 POWER SW ASSY and ENCODER ASSY .97 10.48 IR BUFFER_M ASSY .98 10.49 BUFFER GND_M ASSY and IR_INTERFACE_M ASSY.100 10.50 D AMP ASSY (1/6) .102 10.51 D AMP ASSY (2/6) .104 10.52 D AMP ASSY (3/6) .106 10.53 D AMP ASSY (4/6) .108 10.54 D AMP ASSY (5/6) .110 10.55 D AMP ASSY (6/6) .112 10.56 D

20、AMP ASSY.114 10.57 D AMP ASSY.116 10.58 D AMP ASSY.118 10.59 PRIMARY ASSY.120 10.60 PRIMARY SHIELD ASSY (SC-87) and REG ASSY.122 10.61 IR REG ASSY.124 10.62 B DIODE ASSY .126 10.63 CONNECT ASSY .127 RadioFans.CN 收音机爱 好者资料库 4SC-89 1234 A B C D E F 1234 10.64 FB CONNECT ASSY.128 10.65 PRE BRIDGE ASSY .129 10.66 A-DAC BRIDGE ASSY.