Panasonic-SAPMX7EG-cs-sm 电路图 维修手册.pdf

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1、 Panasonic Corporation 2013. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1303007CE CD Stereo System Model No.SA-PMX7EG Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2. Before Repair and Adjustmen

2、t- 4 1.3. Protection Circuitry- 4 1.4. Caution For Fuse Replacement- 4 1.5. Safety Part Information- 4 2 Warning- 5 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices- 5 2.2. Precaution of Laser Diode- 6 2.3. Service caution based on Legal restrictions -7 2.

3、4. Handling Precaution for Traverse Unit-8 3 Service Navigation - 10 3.1. Service Information-10 4 Specifications- 11 4.1. Others (Licenses)- 11 5 General/Introduction- 12 5.1. CD playback operations- 12 5.2. Inserting media - 13 5.3. Bluetooth operations- 14 Notes: Please refer to the Original Serv

4、ice Manual for : ? ? CD Mechanism Unit (BRS12C), Order No. PSG1303059AE ? ? Speaker system SB-PMX7EG-K, Order No. PSG1303028CE RadioFans.CN 收音机爱 好者资料库 2 6 Location of Controls and Components-15 6.1. Main Unit & Remote Control Key Button Operations -15 7 Installation Instructions-16 7.1. Connections

5、-16 8 Service Mode-17 8.1. Self Diagnostic Mode-17 8.2. Self Diagnostic Function Error Code-19 8.3. Doctor Mode Table-20 9 Disassembly and Assembly Instructions-30 9.1. Disassembly flow chart -31 9.2. Types of Screws-31 9.3. Main Parts Location Diagram -32 9.4. Disassembly of Top Cabinet Block -33 9

6、.5. Disassembly of Headphone P.C.B.-34 9.6. Disassembly of iPod Cradle Unit-35 9.7. Disassembly of Connector Support Unit -36 9.8. Disassembly of iPod Connect P.C.B.-39 9.9. Disassembly of iPod Connector Unit-40 9.10. Disassembly of iPod Lid-41 9.11. Disassembly of Front Panel Block-42 9.12. Disasse

7、mbly of Panel P.C.B. Block-44 9.13. Disassembly of USB P.C.B. -47 9.14. Disassembly of CD Lid-48 9.15. Disassembly of Bottom Ornament-49 9.16. Disassembly of Volume Knob Cover-50 9.17. Disassembly of SMPS P.C.B.-51 9.18. Disassembly of Main P.C.B.-52 9.19. Disassembly of Inner Chassis -54 9.20. Disa

8、ssembly of CD Mechanism Unit -56 9.21. Replacement of Traverse Unit-56 9.22. Disassembly of Rear Cabinet Block-64 9.23. Disassembly of Tuner P.C.B.-65 10 Service Position-67 10.1. Checking of Panel P.C.B. -67 10.2. Checking of SMPS P.C.B. -68 10.3. Checking of Main P.C.B. (Side B) -69 10.4. Checking

9、 of Main P.C.B. (Side A) -71 10.5. Checking of CD Servo P.C.B. -73 11 Block Diagram -75 11.1. SERVO & SYSTEM CONTROL (1/2) BLOCK DIAGRAM-75 11.2. SERVO & SYSTEM CONTROL (2/2) BLOCK DIAGRAM-76 11.3. IC TERMINAL CHART-77 11.4. AUDIO (1/3) BLOCK DIAGRAM -78 11.5. AUDIO (2/3) BLOCK DIAGRAM -79 11.6. AUD

10、IO (3/3) BLOCK DIAGRAM -80 11.7. POWER SUPPLY (1/2) BLOCK DIAGRAM -81 11.8. POWER SUPPLY (2/2) BLOCK DIAGRAM -82 12 Wiring Connection Diagram-83 13 Schematic Diagram-85 13.1. Schematic Diagram Notes-85 13.2. CD SERVO CIRCUIT (1/2) -87 13.3. CD SERVO CIRCUIT (2/2) -88 13.4. MAIN CIRCUIT (1/4) -89 13.

11、5. MAIN CIRCUIT (2/4) -90 13.6. MAIN CIRCUIT (3/4) -91 13.7. MAIN CIRCUIT (4/4) -92 13.8. MAIN (MODULE) CIRCUIT-93 13.9. iPod CONNECT & TUNER CIRCUIT -94 13.10. PANEL, REMOTE SENSOR, USB & HEADPHONE CIRCUIT - 95 13.11. SMPS CIRCUIT (1/2)- 96 13.12. SMPS CIRCUIT (2/2)- 97 13.13. BLUETOOTH CONNECT CIR

12、CUIT - 98 14 Printed Circuit Board- 99 14.1. CD SERVO P.C.B.- 99 14.2. MAIN P.C.B. (Side A)-100 14.3. MAIN P.C.B. (Side B)-101 14.4. iPod CONNECT, TUNER & BLUETOOTH CONNECT P.C.B. -102 14.5. PANEL P.C.B.-103 14.6. REMOTE SENSOR, USB & HEADPHONE P.C.B.-104 14.7. SMPS P.C.B.-105 15 Appendix Informatio

13、n of Schematic Diagram -107 15.1. Voltage Measurement & Waveform Chart-107 16 Exploded View and Replacement Parts List- 111 16.1. Exploded View and Mechanical replacement Parts List- 111 16.2. Electrical Replacement Parts List -115 RadioFans.CN 收音机爱 好者资料库 3 1Safety Precautions 1.1.General Guidelines

14、 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manu

15、facturers specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify the original design without permission of manufacturer. 2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC power line. Use a tran

16、sformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during servicing. 3. When servicing, observe the original lead dress. If a sho

17、rt circuit is found, replace all parts which have been overheated or damaged by the short circuit. 4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed. 5. After servicing, make the following leakage current check

18、s 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 and each exposed metallic cabinet part on the

19、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 be 1.1.2.Leakage Current Hot Check 1. Plug

20、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 pipe, as shown in Figure 1-1. 3. Use an AC vol

21、tmeter, 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. The potential at any point should not excee

22、d 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, and the equipment should be repaired and

23、rechecked before it is returned to the customer. Figure. 1-1 RadioFans.CN 收音机爱 好者资料库 4 1.2.Before Repair and Adjustment Disconnect AC power to discharge AC Capacitors (C5700, C5701, C5702, C5705 and C5706) through a 10W, 1W resistor to ground. Caution : DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdri

24、ver 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 220V - 240V, at 50Hz in NO SIGNAL mode (at volume min in FM Tuner mode) should be 200 mA. 1.3.Protection Circuitry T

25、he 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 circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wi

26、res 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. 2. Determine the cause of the problem and correct it. 3. Turn on the power once again after one minu

27、te. Note: When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again. 1.4.Caution For Fuse Replacement 1.5.Safety Part Information Safety Parts List: There are special components used in this equipment which are important for safety. The

28、se 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 not modify the original design without permission of manufacturer. Saf

29、etyRef. No.Part No.Part Name & DescriptionRemarks 17RGR0431D-A2REAR CABINET 23RKM0677-KTOP CABINET 31RMQ2034PC SHEET 301RAE1040Z-VTRAVERSE ASSY A2K2CQ2YY00119AC CORD A3VQT4X48O/I BOOK (Ge/It/Fr/Sp/Du/Da/Sw) A3VQT4X49O/I BOOK (En/Po/Cz/Fi) C5700F1BAF10200201000pF C5701F0CAF224A1050.22uF C5702F0CAF224

30、A1050.22uF C5705F1BAF10200201000pF C5706F1BAF10200201000pF DZ5701ERZE08A471CSVARISTOR(E.S.D) F1K5G312Y00007FUSE L5702ELF17N011ALINE FILTER L5703ELF19H010ALINE FILTER P5701K2AA2B000011AC INLET PC5720B3PBA0000503PHOTO COUPLER PC5760B3PBA0000503PHOTO COUPLER PCB8REP4967AESMPS P.C.B(RTL) R5700ERJ8GEYJ47

31、4V470K 1/4W R5701ERJ8GEYJ474V470K 1/4W R5710ERJ8GEYJ474V470K 1/4W T5701ETS35BL166ADTRANSFORMER 5 2Warning 2.1.Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such component

32、s commonly are called Elec- trostatically Sensitive (ES) Devices. 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-equipped assembly, drain off

33、 any ESD on your body by touching a known 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 equipped with ES d

34、evices, place the assembly on a conductive surface such as alumi- num foil, to prevent electrostatic charge buildup 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 removal device. Some solder removal devices n

35、ot classified as “anti-static (ESD protected)” 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 im

36、mediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara- ble conductive material). 7. Immediately before removing the protective material from the leads of a replacement ES device, t

37、ouch the protective material to the chassis 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 ha

38、rmless motion such as the brushing together 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). 6 2.2.Precaution of Laser Diode Caution: This product utilizes a laser diode with the unit turned on, invis

39、ible laser radiation is emitted from the 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 dan

40、gerous. 2. Do not adjust the variable resistor 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. ACHTUNG : Dieses Produkt enthlt eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheitadg- estrahit. Wellenlnge : 790nm (CD) Maximale Strahlungsleistung der Lasereinheit :100 W/VDE Die Strahlung an der Lasereinheit ist ungefhrlich, wenn folgende Punkte beachtet werden: 1. Die Lasereinheit nicht zerlegen,