Panasonic-SAVKX20G-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. PSG1010001CE DVD Stereo System Model No.SA-VKX20GA SA-VKX20GC SA-VKX20GS Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2. Bef

2、ore Use (For GA/GS 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 1.7. Caution for AC Cord (For GS Only)- 6 2 Warning- 7 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES)

3、 Devices-7 2.2. Precaution of Laser Diode-8 2.3. Service caution based on Legal restrictions -9 2.4. Handling Precautions for Traverse Unit - 10 3 Service Navigation - 12 3.1. Service Information- 12 4 Specifications- 13 4.1. Others (Licenses)- 14 Notes: Please refer to the original service manual f

4、or: ? ? CD Mechanism Unit (DLS6E), Order No: PSG0909002AE ? ? Speaker System SB-AKX10PN-K, Order No: PSG1001001CE RadioFans.CN 收音机爱 好者资料库 2 5 Location of Controls and Components-15 5.1. Main Unit Key Button Operation-15 5.2. Remote Control Key Button Operation -16 5.3. Disc Information -17 6 Self-Di

5、agnostic and Special Mode Setting -18 6.1. Cold-Start-18 6.2. Self-Diagnostic Mode Table -19 6.3. Self Diagnostic Function-Error Code-26 6.4. Firmware Version-Up Information-29 6.5. Sales Demonstration Lock Function -32 7 Troubleshooting Guide-33 7.1. Troubleshooting Guide for F61 and/or F76-33 7.2.

6、 Part Location -34 7.3. D-Amp IC Operation & Control -37 8 Service Fixture & Tools -39 8.1. Service Tools and Equipment-39 9 Disassembly and Assembly Instructions-40 9.1. Disassembly Flow Chart-41 9.2. Main Components and P.C.B. Locations-42 9.3. Disassembly of Side Panels-43 9.4. Disassembly of Top

7、 Cabinet Unit -44 9.5. Disassembly of Deck Mechanism Unit -45 9.6. Disassembly of Deck P.C.B.-46 9.7. Disassembly of Cassette Lid-46 9.8. Disassembly of Front Panel Assembly -47 9.9. Disassembly of Panel P.C.B.-49 9.10. Disassembly of Remote Sensor P.C.B.-50 9.11. Disassembly of CD Open Button P.C.B

8、.-51 9.12. Disassembly of USB P.C.B. -51 9.13. Disassembly of Mic P.C.B.-52 9.14. Disassembly of CD Lid-52 9.15. Disassembly of Main P.C.B.-53 9.16. Replacement of Regulator IC (IC4200)-54 9.17. Disassembly of SMPS P.C.B.-55 9.18. Replacement of Switching Regulator IC (IC5701) -56 9.19. Replacement

9、of Rectifier Diode (D5702)-58 9.20. Replacement of Regulator Diode (D5801)-60 9.21. Replacement of Regulator Diode (D5802)-61 9.22. Replacement of Regulator Diode (D5803)-62 9.23. Disassembly of DVD Module P.C.B.-63 9.24. Disassembly of DVD Mechanism Unit (DLS6E) -64 9.25. Disassembly of D-Amp P.C.B

10、. -65 9.26. Replacement of Audio Digital Amp IC (IC5900) -67 9.27. Disassembly of Rear Panel-68 9.28. Disassembly of Voltage Selector P.C.B.-69 10 Replacement of Traverse Unit -71 10.1. Disassembly of Traverse Unit-71 10.2. Assembly of Traverse Unit-71 11 Service Position-73 11.1. Checking and Repai

11、ring of D-Amp P.C.B. -73 11.2. Checking and Repairing of Panel P.C.B.-73 11.3. Checking and Repairing of Deck P.C.B.-74 11.4. Checking and Repairing of SMPS P.C.B.-74 11.5. Checking and Repairing of DVD Module P.C.B. Side A-76 11.6. Checking and Repairing of DVD Module P.C.B. Side B-77 11.7. Checkin

12、g and Repairing of Main P.C.B. Side A-77 11.8. Checking and Repairing Side B of Main P.C.B. - 78 12 Measurements & Adjustments- 79 12.1. Deck Mechanism Section - 79 13 Voltage & Waveform Chart - 80 13.1. Main P.C.B. (1/3)- 80 13.2. Main P.C.B. (2/3)- 81 13.3. Main P.C.B. (3/3)- 82 13.4. DVD Module P

13、.C.B. (1/3) - 83 13.5. DVD Module P.C.B. (2/3) - 84 13.6. DVD Module P.C.B. (3/3) - 85 13.7. Panel P.C.B.- 85 13.8. Mic P.C.B.- 85 13.9. Deck P.C.B. - 86 13.10. D-Amp P.C.B.- 86 13.11. SMPS P.C.B.- 87 13.12. Waveform Table (1/3)- 88 13.13. Waveform Table (2/3)- 89 13.14. Waveform Table (3/3)- 90 14

14、Illustration of ICs, Transistor and Diode- 91 15 Simplified Block Diagram- 93 15.1. Overall Simplified Block Diagram- 93 15.2. D-Amp Block Diagram- 94 16 Block Diagram- 95 16.1. DVD Module - 95 16.2. IC Terminal Chart- 96 16.3. System Control- 97 16.4. Audio- 98 16.5. Power Amplifier & Video- 99 16.

15、6. Power Supply-100 17 Wiring Diagram-102 18 Schematic Diagram-103 18.1. Schematic Diagram Notes -103 18.2. DVD Module Circuit-105 18.3. Main Circuit-109 18.4. Deck Circuit -117 18.5. Panel Circuit -118 18.6. CD Open Button, Mic, USB & Remote Sensor Circuit-120 18.7. D-Amp Circuit-121 18.8. SMPS Cir

16、cuit-122 18.9. Voltage Selector Circuit (For GA/GS Only)-124 19 Printed Circuit Board-125 19.1. DVD Module P.C.B. -125 19.2. Main P.C.B.-126 19.3. Deck, CD Open Button, Mic, USB & Remote Sensor P.C.B.-127 19.4. Panel P.C.B.-128 19.5. D-Amp & Voltage Selector P.C.B. -129 19.6. SMPS P.C.B.-130 20 Term

17、inal Function of ICs-133 20.1. IC2800 (RFKWMVKX20GA): IC MICRO- PROCESSOR -133 20.2. IC6000(C0HBB0000061): IC FL Driver -133 21 Exploded View and Replacement Parts List-135 21.1. Exploded View and Mechanical replacement Part List -135 21.2. Electrical Replacement Part List-141 RadioFans.CN 收音机爱 好者资料

18、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 insulation barriers, ins

19、ulation 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 the plug. 2. Measure th

20、e 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 and 5.2M. When the exposed

21、 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 capacitors, between each exposed

22、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 point. 5. Reverse the AC pl

23、ug 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 a measurement is outside

24、 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 GA/GS only) Be sure to disconnect the mains cord before adjusting the voltage selector. Use a minus(-) screwdrive

25、r 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 setting is not made

26、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, C5706, C5707, C5708)

27、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 220240 V, 50/60 Hz in

28、 Power ON, FM Tuner, No Signal, Volume minimal mode should be 500 mA. Current consumption at AC 110127 V, 50/60 Hz in Power ON, FM Tuner, No Signal, Volume minimal mode should be 750 mA (GA/GS). 1.5.Protection Circuitry The protection circuitry may have operated if either of the following conditions

29、 are noticed: 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 indica

30、ted rated impedance 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

31、unless the power 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 & Replacement Parts List. It is essential that these critica

32、l 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 BLK WIRE (VOLTAGE-SMPS) GA/GS 7REXX10311P RED WIRE (VOLTAGE-SM

33、PS) GA/GS 17RGRX1003A-A1REAR PANELGC 17RGRX1003B-A1REAR PANELGS 17RGRX1003B-B1REAR PANELGA 39RKMX1007-KSIDE PANEL L 40RKMX1008-KSIDE PANEL R 58RMQX1087DECK COVER SHEET 401RAEX1032Z-VTRAVERSE UNIT A2K2CP2CA00001AC CORDGA A2K2CQ2CA00007AC CORDGA/GC A2K2CZ3YY00005AC CORDGS A3RQTX1227-GO/I BOOK (En/Pe/A

34、r)GC/GS A3RQTX1228-LO/I BOOK (En)GA PCB10REPX0809LSMPS P.C.B.(RTL) GC PCB10REPX0809MSMPS P.C.B.(RTL) GA/GS PCB11REPX0809MVOLTAGE SELECTOR P.C.B.(RTL) GA/GS DZ5701ERZV10V511CSZNR S5701K0ABCA000007SW VOLT ADJGA/GS L5702ELF22V020ALINE FILTERGC L5703G0B612H00002LINE FILTER T4300G4DYA0000214SWITCHING TRA

35、NSFORMER T5701ETS39AG4M6ADMAIN TRANSFORMER T5751ETS19AB2E6AGSUB TRANSFORMER F1K5D402BK0007FUSEGC F1K5D632BK0007FUSEGA/GS TH5702D4CAA2R20001THERMISTOR TH5860D4CC11040013THERMISTOR TH5900D4CC11040013THERMISTOR P5701K2AA2B000011AC INLET C5700F1BAF471A013470pFGC C5701F0CAF104A1050.1uF C5703F0CAF224A1050

36、.22uF 5 C5704F1BAF471A013 470pFGA/GS C5705F1BAF471A013 470pFGA/GS C5706F1BAF471A013470pFGC C5707F1BAF10200201000pFGC C5708F1BAF10200201000pFGC C5708F1BAF471A013 470pFGA/GS SafetyRef. No.Part No.Part Name & DescriptionRemarks 6 1.7.Caution for AC Cord (For GS Only) 7 2Warning 2.1.Prevention of Electr

37、ostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices Some 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 techniques should be used to help reduce the incidence of component damage