Pioneer-SC75-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 CORPORATION2013 2013 Printed in Japan SC-75 RRV4461 AV RECEIVER SC-75 SC-1528-K SC-1523-K SC-LX57 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 Requireme

3、ntRemarks SC-75CUXJAC 120V SC-1528-KCUXJAC 120V SC-1523-KUXJCBAC 120V SC-LX57JXJAC 100V Model No.Order No.Remarks SC-75, SC-1528-K, SC-1523-KRRV4449BLOCK DIAGRAM, EXPLODED VIEWS AND PARTS LIST etc. K-FZV JULY RadioFans.CN 收音机爱 好者资料库 2SC-75 1234 A B C D E F 1234 SAFETY INFORMATION 1. SAFETY PRECAUTIO

4、NS 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 t

5、he 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 MEASUR

6、EMENTS 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

7、 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

8、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

9、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

10、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

11、 certain electrical parts contain 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 equipmen

12、t 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 produc

13、t 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-75 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 (1/4).8 10.3 AUDIO ASSY (2/4).1

14、0 10.4 AUDIO ASSY (3/4).12 10.5 AUDIO ASSY (4/4).14 10.6 DAC HIGH ASSY (1/3) .16 10.7 DAC HIGH ASSY (2/3) .18 10.8 DAC HIGH ASSY (3/3) .20 10.9 FRONT HDMI USB ASSY .22 10.10 USB RECT_S ASSY.24 10.11 DIGITAL MAIN ASSY (1/12) .26 10.12 DIGITAL MAIN ASSY (2/12) .28 10.13 DIGITAL MAIN ASSY (3/12) .30 10

15、.14 DIGITAL MAIN ASSY (4/12) .32 10.15 DIGITAL MAIN ASSY (5/12) .34 10.16 DIGITAL MAIN ASSY (6/12) .36 10.17 DIGITAL MAIN ASSY (7/12) .38 10.18 DIGITAL MAIN ASSY (8/12) .40 10.19 DIGITAL MAIN ASSY (9/12) .42 10.20 DIGITAL MAIN ASSY (10/12) .44 10.21 DIGITAL MAIN ASSY (11/12) .46 10.22 DIGITAL MAIN A

16、SSY (12/12) .48 10.23 INTERFACE_S ASSY.50 10.24 COMPONENT ASSY (1/3) .52 10.25 COMPONENT ASSY (2/3) .54 10.26 COMPONENT ASSY (3/3) .56 10.27 COMPOSITE ASSY.58 10.28 MIC HP ASSY.60 10.29 DISPLAY ASSY (1/2).62 10.30 DISPLAY ASSY (2/2).64 10.31 VOL ASSY.66 10.32 POWER SW ASSY and ENCODER ASSY .67 10.33

17、 IR BUFFER_S ASSY (1/2) .68 10.34 IR BUFFER_S ASSY (2/2) .70 10.35 BUFFER GND_S ASSY and IR INTERFACE_S ASSY.72 10.36 D-AMP_S ASSY (1/10).74 10.37 D-AMP_S ASSY (2/10).76 10.38 D-AMP_S ASSY (3/10).78 10.39 D-AMP_S ASSY (4/10).80 10.40 D-AMP_S ASSY (5/10).82 10.41 D-AMP_S ASSY (6/10).84 10.42 D-AMP_S

18、ASSY (7/10).86 10.43 D-AMP_S ASSY (8/10).88 10.44 D-AMP_S ASSY (9/10).90 10.45 D-AMP_S ASSY (10/10).92 10.46 PRIMARY ASSY (1/2).94 10.47 PRIMARY ASSY (2/2).96 10.48 A-REG_S ASSY .98 10.49 IR REG_S ASSY (1/2).100 10.50 IR REG_S ASSY (2/2).102 10.51 V-REG_S ASSY (1/3) .103 10.52 V-REG_S ASSY (2/3) .10

19、4 10.53 V-REG_S ASSY (3/3) .106 10.54 VREG CHILD_S ASSY.107 10.55 CONNECT_S ASSY.108 10.56 A-DAC BRIDGE ASSY .109 10.57 D-AUDIO BRIDGE ASSY .110 10.58 D-DAC BRIDGE ASSY .111 10.59 PRE BRIDGE_S ASSY.112 10.60 FAN CONNECT, MIC HP GUARD, BIND DM CABLE_S, P WIRE GUARD_S, FFC GUARD_S, BINDFAN CABLE_S and TRANS VREG STYL_S ASSYS .113 10.61 VREG GUARD, PANEL GUARD and IR EDGE GUARD_S ASSYS.114 RadioFans.CN 收音机爱 好者资料库 4SC-75 1234 A B C D E F 1234 11. PCB CONNECTION DIAGRAM .116 11.1 AUDIO ASSY .116 11.2 DAC HIGH ASSY .120 11.3 FRONT