Panasonic-SAAKX50P-cs-sm 电路图 维修手册.pdf

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1、 Panasonic Corporation 2010. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1003011CE CD Stereo System Model No.SA-AKX50PH SA-AKX50PN Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2. Before Use (For

2、 PH only)- 3 1.3. Caution For Fuse Replacement- 3 1.4. Before Repair and Adjustment- 4 1.5. Protection Circuitry- 4 1.6. Safety Parts Information- 4 2 Warning- 6 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices - 6 2.2. Precaution of Laser Diode-7 2.3. Service

3、 caution based on Legal restrictions -8 2.4. Handling Precautions for Traverse Unit -9 3 Service Navigation - 11 3.1. Service Information- 11 4 Specifications- 12 5 Location of Controls and Components- 13 5.1. Main Unit Key Button Operation- 13 5.2. Remote Control Key Button Operation - 14 5.3. Medi

4、a Information- 15 Notes: Please refer to the original service manual for: ? ? CD Mechanism Unit (DLS6C),Order No:MD0803034CE ? ? Speaker system SB-AKX70PNAK,Order No.PSG1004001CE RadioFans.CN 收音机爱 好者资料库 2 6 Self-Diagnostic and Special Mode Setting -16 6.1. Cold-Start-16 6.2. Doctor Mode Table-17 6.3

5、. Reliability Test Mode (CD Mechanism Unit (DLS6C) -19 6.4. Self-Diagnostic Mode -20 6.5. Self-Diagnostic Error Code Table -21 7 Troubleshooting Guide-22 7.1. Troubleshooting Guide for F61 and/ or F76-22 7.2. Part Location -23 7.3. D-Amp IC Operation & Control -26 8 Service Fixture & Tools -28 8.1.

6、Service Tools and Equipment-28 9 Disassembly and Assembly Instructions-29 9.1. Disassembly Flow Chart-30 9.2. Main Components and P.C.B. Locations-31 9.3. Disassembly of Top Cabinet-32 9.4. Disassembly of Tuner P.C.B.-33 9.5. Disassembly of Front Panel Assembly -33 9.6. Disassembly of Panel P.C.B.-3

7、5 9.7. Disassembly of Remote Sensor P.C.B.-36 9.8. Disassembly of CD Open Button P.C.B.-37 9.9. Disassembly of Jupiter P.C.B.-38 9.10. Disassembly of Music Port/Headphone P.C.B.-38 9.11. Disassembly of CD Lid-39 9.12. Disassembly of Main P.C.B.-40 9.13. Replacement of Regulator IC (IC2010)-41 9.14.

8、Disassembly of Mic P.C.B.-42 9.15. Disassembly of D-Amp P.C.B. -43 9.16. Disassembly of SMPS P.C.B.-45 9.17. Replacement of Switching Regulator IC (IC5701) -46 9.18. Replacement of Rectifier Diode (D5702)-47 9.19. Replacement of Regulator Diode (D5801)-49 9.20. Replacement of Regulator Diode (D5802)

9、-50 9.21. Replacement of Regulator Diode (D5803)-51 9.22. Disassembly of CD Mechanism Unit (DLS6C) -52 9.23. Disassembly of Rear Panel-53 9.24. Disassembly of Voltage Selector P.C.B. (For PH only) -54 9.25. Disassembly of CD Servo P.C.B.-55 9.26. Replacement of Audio Digital Amp IC (IC5000) -56 9.27

10、. Replacement of Audio Digital Amp IC (IC5400) -57 10 Replacement of Traverse Unit -58 10.1. Disassembling Procedures -58 10.2. Assembling Procedure-59 11 Service Position-61 11.1. Checking and Repairing of Main P.C.B.-61 11.2. Checking and Repairing of D-Amp P.C.B. -61 11.3. Checking and Repairing

11、of Panel P.C.B.-61 11.4. Checking and Repairing of Jupiter P.C.B.-61 11.5. Checking and Repairing of SMPS P.C.B.-62 12 Voltage & Waveform Chart-63 12.1. CD Servo P.C.B.-63 12.2. Main P.C.B. (1/2) -64 12.3. Main P.C.B. (2/2) -65 12.4. Jupiter P.C.B. (1/3)-66 12.5. Jupiter P.C.B. (2/3)-67 12.6. Jupite

12、r P.C.B. (3/3)-68 12.7. Panel P.C.B.- 68 12.8. D-Amp P.C.B.- 69 12.9. SMPS P.C.B.- 70 12.10. Tuner P.C.B.- 70 12.11. Mic P.C.B.- 70 12.12. Waveform Table (1/2)- 71 12.13. Waveform Table (2/2)- 72 13 Illustration of ICs, Transistor and Diode- 73 14 Simplified Block Diagram- 75 14.1. Overall Simplifie

13、d Block Diagram- 75 14.2. D-Amp Block Diagram- 76 15 Block Diagram- 77 15.1. Servo/System Control - 77 15.2. IC Terminal Chart (Servo/System Control)- 78 15.3. Audio- 79 15.4. Power Amplifier - 80 15.5. Power Supply- 81 16 Wiring Diagram- 82 17 Schematic Diagram Notes- 83 18 Schematic Diagram- 85 18

14、.1. CD Servo Circuit- 85 18.2. Main Circuit- 86 18.3. Jupiter Circuit- 92 18.4. Panel Circuit - 96 18.5. CD Open Button, Remote Sensor, Tuner, Music Port/Headphone Circuit- 98 18.6. D-Amp Circuit- 99 18.7. SMPS Circuit-101 18.8. Mic & Voltage Selector Circuit (For PH Only)-103 19 Printed Circuit Boa

15、rd-104 19.1. CD Servo, Mic & Voltage Selector P.C.B. (For PH Only) -104 19.2. Main P.C.B.-105 19.3. Jupiter P.C.B. -106 19.4. Panel P.C.B.-107 19.5. CD Open Button, Remote Sensor, Tuner, Music Port/Headphone P.C.B.-108 19.6. D-Amp P.C.B.-109 19.7. SMPS P.C.B. (For PH Only) -110 19.8. SMPS P.C.B. (Fo

16、r PN Only) - 111 20 Terminal Function of ICs-113 20.1. IC2003 (RFKWMAKX50PN): IC MICRO- PROCESSOR -113 20.2. IC6901(C0HBB0000057): IC FL Driver -114 21 Exploded View and Replacement Parts List-115 21.1. Exploded View and Mechanical replacement Part List -115 21.2. Electrical Replacement Part List-12

17、1 RadioFans.CN 收音机爱 好者资料库 3 1Safety Precautions 1.1.General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as

18、insulation barriers, insulation papers shields are properly installed. 3. After servicing, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards. 1.1.1.Leakage Current Cold Check 1. Unplug the AC cord and connect a jumper between the two prongs on

19、 the plug. 2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1M an

20、d 5.2M. When the exposed metal does not have a return path to the chassis, the reading must be 1.1.2.Leakage Current Hot Check 1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 2. Connect a 1.5k, 10 watts resistor, in parallel with a 0.15F capacitor

21、s, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1. 3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor. 4. Check each exposed metallic part, and measure the voltage at each poi

22、nt. 5. Reverse the AC plug in the AC outlet and repeat each of the above measurements. 6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case

23、a measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer. Figure 1 1.2.Before Use (For PH only) Be sure to disconnect the mains cord before adjusting the voltage selector. Use

24、a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will be used. (If the power supply in your area is 110V 127V or 220V 240V, set to the “110V 127V or 220V 240V” position.) Note that this unit will be seriously damaged if this

25、 setting is not made correctly. (There is no voltage selector for some countries, the correct voltage is already set.) 1.3.Caution For Fuse Replacement RadioFans.CN 收音机爱 好者资料库 4 1.4.Before Repair and Adjustment Disconnect AC power to discharge unit AC Capacitors as such (C5701, C5703, C5704, C5705,

26、C5706, C5707, C5708) through a 10 , 10 W resistor to ground. Caution: DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent. Current consumption at AC

27、120 V, 60 Hz in NO SIGNAL mode volume minimal should be 500 mA. (PN) Current consumption at AC 110127 V / 220240 V, 50/60 Hz in NO SIGNAL mode volume minimal should be 500 mA. (PH) 1.5.Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed:

28、No sound is heard when the power is turned on. Sound stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impe

29、dance of the amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power. 2. Determine the cause of the problem and correct it. 3. Turn on the power once again after one minute. Note: When the protection circuitry functions, the unit will not operate unless the pow

30、er is first turned off and then on again. 1.6.Safety Parts Information Safety Parts List: There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these critic

31、al parts should be replaced with manufacturers specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer. SafetyRef. No.Part No.Part Name & DescriptionRemarks 6REXX10301P RED WIRE (VOLTAGE-SMPS)PH 7REXX10311P BLACK WIRE (VOLTAGE-SMP

32、S)PH 13RGRX1002F-A1REAR PANELPN 13RGRX1002G-A1REAR PANELPH 37RKMX1003-KTOP CABINET 401RAEX0190Z-VTRAVERSE UNIT A2K2CB2CB00021AC CORDPN A2K2CQ2CA00007AC CORDPH A3RQTX1092-MO/I BOOK (En,Sp)PN A3RQTX1093-MO/I BOOK (Sp)PH PCB3REPX0809ASMPS P.C.B.(RTL) PN PCB3REPX0809ESMPS P.C.B.(RTL) PH PCB11REPX0809EVO

33、LTAGE SELECTOR P.C.B.(RTL) PH DZ5701ERZV10V511CSZNR S5701K0ABCA000007SW VOLTAGE SELECTOR PH L5703G0B612H00002LINE FILTER T5701ETS39AG4M6ADMAIN TRANSFORMERPH T5701ETS39AG4NGADMAIN TRANSFORMERPN T5751ETS19AB2E6AGSUB TRANSFORMER T6000G4DYA0000214SWITCHING TRANS PC5701B3PBA0000402PHOTO COUPLER PC5702B3P

34、BA0000402PHOTO COUPLER PC5720B3PBA0000402PHOTO COUPLER PC5799B3PBA0000402PHOTO COUPLER F1K5D632BK0007FUSEPH F1K5D802APA008FUSEPN TH5702D4CAA2R20001THERMISTOR TH5860D4CC11040013THERMISTOR P5701K2AA2B000011AC INLETPH P5701K2AB2B000007AC INLETPN C5701F0CAF334A1050.33uF C5703F0CAF104A1050.1uFPH C5703F0C

35、AF224A1050.22uFPN C5704F1BAF10200201000pF 5 C5705F1BAF10200201000pF C5706F1BAF10200201000pFPH C5707F1BAF10200201000pFPH C5708F1BAF10200201000pF SafetyRef. No.Part No.Part Name & DescriptionRemarks 6 2Warning 2.1.Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices Some

36、 semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following

37、techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD). 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain an

38、d wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi- num foil, to p