Panasonic-SAPM500DBEB-cs-sm 电路图 维修手册.pdf

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1、 Panasonic Corporation 2011. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1107005CE CD Stereo System Model No.SA-PM500DBEB Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2. Caution for AC Cord - 4

2、1.3. Before Repair and Adjustment- 5 1.4. Caution For Fuse Replacement- 5 1.5. Protection Circuitry- 5 1.6. Safety Part Information-5 2 Warning -6 2.1. Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices -6 2.2. Precaution of Laser Diode-7 2.3. Service caution ba

3、sed on Legal restrictions -8 Notes: Please refer to the Original Service Manual for : ? ? CD Mechanism Unit (BRS1C), Order No. PSG1102001CE ? ? Speaker system SB-PM500EG-K/S, Order No. PSG1106006CE RadioFans.CN 收音机爱 好者资料库 2 2.4. Handling Precaution for Traverse Unit-9 3 Service Navigation- 11 3.1. S

4、ervice Information- 11 4 Specifications-12 5 Location of Controls and Components-13 5.1. Main Unit & Remote Control Key Button Operations -13 5.2. Making the Connections-14 5.3. Disc Operations-14 5.4. iPod or iPhone Operation -15 5.5. USB Operation-15 5.6. Notes on CD-R and CD-RW-16 6 Operating Ins

5、tructions -17 6.1. CD Unit Jam-17 7 Self Diagnostic and Doctor Mode Setting -18 7.1. Self Diagnostic Mode-18 7.2. Self Diagnostic Function Error Code-19 7.3. Doctor Mode Table-20 7.4. Sales Demonstration Lock Function Mode -27 8 Disassembly and Assembly Instructions-28 8.1. Disassembly flow chart -2

6、9 8.2. Types of Screws-29 8.3. Main Parts Location Diagram -30 8.4. Disassembly of Top Cabinet Block -31 8.5. Disassembly of Headphone P.C.B.-32 8.6. Disassembly of iPhone P.C.B. -33 8.7. Disassembly of iPod Lid-33 8.8. Disassembly of Front Panel Block-37 8.9. Disassembly of Panel P.C.B.-38 8.10. Di

7、sassembly of USB P.C.B. -39 8.11. Disassembly of Display Window Assembly -40 8.12. Disassembly of CD Lid-41 8.13. Replacement of DAB Unit-42 8.14. Replacement of SMPS Block -46 8.15. Disassembly of SMPS P.C.B.-49 8.16. Replacement of Diode (D702) -51 8.17. Replacement of Transistor (Q701)-52 8.18. D

8、isassembly of Main P.C.B. Unit-54 8.19. Disassembly of Main P.C.B.-55 8.20. Disassembly of CD Mechanism Unit (BRS1C) -56 8.21. Replacement of Traverse Unit-57 9 Service Position-64 9.1. Checking & Repairing of Panel P.C.B.-64 9.2. Checking & Repairing of DAB P.C.B. & DAB Module-65 9.3. Checking & Re

9、pairing of SMPS P.C.B.-67 9.4. Checking & Repairing of CD Servo P.C.B.-69 9.5. Checking & Repairing of Main P.C.B. (Side B) -71 9.6. Checking & Repairing of Main P.C.B. (Side A) -73 10 Voltage Measurement & Waveform Chart-76 10.1. CD SERVO P.C.B. -76 10.2. MAIN P.C.B. 1/3 -77 10.3. MAIN P.C.B. 2/3 -

10、78 10.4. MAIN P.C.B. 3/3 -79 10.5. PANEL P.C.B. -79 10.6. SMPS P.C.B. -79 10.7. DAB P.C.B.-80 10.8. Waveform Chart -80 11 Illustration of ICs, Transistors and Diodes -81 12 Overall Simplified Block-83 12.1. Control & Signal Diagram-83 12.2. Voltage / Current / Ground Diagram - 84 13 Block Diagram- 8

11、5 13.1. SERVO & SYSTEM CONTROL BLOCK DIAGRAM - 85 13.2. IC TERMINAL CHART - 86 13.3. AUDIO BLOCK DIAGRAM- 87 13.4. POWER SUPPLY (1/2) BLOCK DIAGRAM- 88 13.5. POWER SUPPLY (2/2) BLOCK DIAGRAM- 89 14 Wiring Connection Diagram - 90 15 Schematic Diagram- 91 15.1. Schematic Diagram Notes - 91 15.2. CD SE

12、RVO CIRCUIT (1/2)- 93 15.3. CD SERVO CIRCUIT (2/2)- 94 15.4. MAIN (MICON) CIRCUIT (1/4)- 95 15.5. MAIN (MICON) CIRCUIT (2/4)- 96 15.6. MAIN (MICON) CIRCUIT (3/4)- 97 15.7. MAIN (MICON) CIRCUIT (4/4)- 98 15.8. MAIN (MULTIPLEXING) CIRCUIT - 99 15.9. MAIN (FL SUPPLY) CIRCUIT-100 15.10. PANEL & DAB CIRC

13、UIT-101 15.11. iPhone, USB & HEADPHONE CIRCUIT -102 15.12. SMPS CIRCUIT-103 16 Printed Circuit Board-104 16.1. CD SERVO P.C.B.-104 16.2. MAIN P.C.B. (Side A)-105 16.3. MAIN P.C.B. (Side B)-106 16.4. PANEL, iPhone, USB & HEADPHONE P.C.B.-107 16.5. SMPS & DAB P.C.B.-108 17 Terminal Function of ICs -10

14、9 17.1. IC801 (RFKWMPM500DB) MICRO PROCESSOR IC -109 18 Exploded View and Replacement Parts List- 111 18.1. Exploded View and Mechanical replacement Parts List- 111 18.2. Electrical Replacement Parts List -115 RadioFans.CN 收音机爱 好者资料库 3 1Safety Precautions 1.1.General Guidelines 1. When servicing, ob

15、serve 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, insulation papers shields are properly installed. 3. After servicing, c

16、arry 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 the resistance value, with an ohmmeter between the jumpered AC plug an

17、d 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 metal does not have a return path to the chas- sis, the reading must

18、 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 metallic part on the set and a good earth ground such as a water pi

19、pe, 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 plug in the AC outlet and repeat each of the above measurements. 6. T

20、he 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 of the limits specified, there is a possibility of a shock hazard,

21、 and the equipment should be repaired and rechecked before it is returned to the customer. Figure. 1 RadioFans.CN 收音机爱 好者资料库 4 1.2.Caution for AC Cord 5 1.3.Before Repair and Adjustment Disconnect AC power, discharge unit AC Capacitors as such C702, C710, C725, C727 and C728 through a 10W, 1W resist

22、or 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 220 - 240V, at 50Hz in NO SIGNAL mode (at volu

23、me min in FM Tuner mode) should be 200 mA. 1.4.Caution For Fuse Replacement 1.5.Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed: No sound is heard when the power is turned on. Sound stops during a performance. The function of this cir

24、cuitry 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 impedance of the amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power

25、. 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 power is first turned off and then on again. 1.6.Safety Part Information Safety Parts List: There are special

26、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 critical parts should be replaced with manufacturers specified parts to prevent shock, fire or other hazards. Do n

27、ot modify the original design without permission of manufacturer. Table 1 SafetyRef. No.Part No.Part Name & DescriptionRemarks 8RYK1650B-KREAR CABINET ASSY 15RGN3037B-KNAME PLATE 301RAEX1033Z-VTRAVERSE ASSY A2K2CZ3YY00005AC CORD A3RQT9538-BO/I BOOK (En) C702F0CAF104A1050.1uF C710F1BAF22200232200pF C

28、725F0CAF104A1050.1uF C727F1BAF10200201000pF C728F1BAF10200201000pF F751K5G312Y00007FUSE FP1000K5H7512A0010FUSE PROTECTOR L702G0B183E00004LINE FILTER P751K2AA2B000011AC INLET PC701B3PBA0000503PHOTO COUPLER PC702B3PBA0000503PHOTO COUPLER PCB5REPX0917ASMPS P.C.B.(RTL) R724ERJ12YJ155U1.5M 1/2W R726ERJ12

29、YJ155U1.5M 1/2W SW1D4FB1R250006RESETTABLE FUSE SW7900D4FBR5000009RESETTABLE FUSE T1000G4D1A0000117SWITCHING TRANSFORMER T701ETS28BT11GACMAIN TRANSFORMER TH701D4CAA5R10001THERMISTOR TH702D4CC11040013THERMISTOR Z752ERZVA5Z471ZNR 6 2Warning 2.1.Prevention of Electro Static Discharge (ESD) to Electrosta

30、tically Sensi- tive (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 semicond

31、uctor “chip” components. The following 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-equiped assembly, drain off any ESD on your body by touching a known

32、earth ground. Alternatively, obtain and 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 equiped with ES devices, place the assembly on a conductive

33、surface such as alumin- ium foil, to prevent electrostatic charge build up or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder remover device. Some solder removal devices not classified as “anti-static (ESD protec

34、ted)” can generate electrical charge sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install

35、 it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or compara- ble conductive material). 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chas

36、sis or circuit assembly into which the device will be installed. Caution : Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing toge

37、ther of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) suf- ficient to damage an ES device). 7 2.2.Precaution of Laser Diode Caution: This product utilizes a laser diode with the unit turned on, invisible laser radiation is emitted from th

38、e pickup lens. Wavelength: 790 nm (CD) Maximum output radiation power from pickup: 100 W/VDE Laser radiation from the pickup unit is safety level, but be sure the followings: 1. Do not disassemble the pickup unit, since radiation from exposed laser diode is dangerous. 2. Do not adjust the variable r

39、esistor on the pickup unit. It was already adjusted. 3. Do not look at the focus lens using optical instruments. 4. Recommend not to look at pickup lens for a long time. CAUTION! THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HER

40、EIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. 8 2.3.Service caution based on Legal restrictions 2.3.1.General description about Lead Free Solder (PbF) The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation. The normal solder is the alloy of tin (Sn) and lead (Pb). On the other ha