Panasonic-SCAKX30PN-cd-sm 维修电路原理图.pdf

Panasonic Corporation 2010. All rights reserved.Unauthorized copying and distribution is a violationof law.PSG1002032CECD Stereo SystemModel No.SA-AKX30PHSA-AKX30PNProduct Color: (K).Black TypeTABLE OF CONTENTSPAGEPAGE1 Safety Precautions- 31.1. General Guidelines- 31.2. Before Use (For PH only)- 31.3. Caution For Fuse Replacement- 31.4. Before Repair and Adjustment- 41.5. Protection Circuitry- 41.6. Safety Parts Information- 42 Warning- 62.1. Prevention of Electrostatic Discharge (ESD)to Electrostatic Sensitive (ES) Devices - 62.2. Precaution of Laser Diode- 72.3. Service caution based on Legal restrictions- 82.4. Handling Precautions for Traverse Unit -93 Service Navigation - 113.1. Service Information- 114 Specifications- 125 Location of Controls and Components- 135.1. Main Unit Key Button Operation- 135.2. Remote Control Key Button Operation - 145.3. Media Information- 156 Self-Diagnostic and Special Mode Setting - 166.1. Cold-Start - 166.2. Doctor Mode Table- 17Notes: This models CD Mechanism Unit is DLS6C. Please refer to the original service manual (Order No. MD0803034CE) for this mechanismRadioFans.CN 收音机爱 好者资料库26.3. Reliability Test Mode (CD Mechanism Unit(DLS6C) -196.4. Self-Diagnostic Mode -206.5. Self-Diagnostic Error Code Table -217 Troubleshooting Guide-227.1. Troubleshooting Guide for F61 and/or F76-227.2. Part Location -237.3. D-Amp IC Operation & Control -268 Service Fixture & Tools -288.1. Service Tools and Equipment-289 Disassembly and Assembly Instructions-299.1. Disassembly Flow Chart-309.2. Main Components and P.C.B. Locations-319.3. Disassembly of Top Cabinet-329.4. Disassembly of Tuner P.C.B.-329.5. Disassembly of Front Panel Assembly -339.6. Disassembly of Panel P.C.B.-349.7. Disassembly of Remote Sensor P.C.B.-369.8. Disassembly of CD Open Button P.C.B.-369.9. Disassembly of Jupiter P.C.B.-379.10. Disassembly of Music Port/Headphone P.C.B.-379.11. Disassembly of CD Lid-389.12. Disassembly of Main P.C.B.-399.13. Replacement of Regulator IC (IC2010)-409.14. Disassembly of D-Amp P.C.B. -419.15. Replacement of Audio Digital Amp IC(IC5900) -429.16. Disassembly of SMPS P.C.B.-449.17. Replacement of Switching Regulator IC(IC5701) -459.18. Replacement of Rectifier Diode (D5702)-479.19. Replacement of Regulator Diode (D5801)-489.20. Replacement of Regulator Diode (D5802)-499.21. Replacement of Regulator Diode (D5803)-509.22. Disassembly of CD Mechanism Unit (DLS6C) -519.23. Disassembly of Rear Panel-539.24. Disassembly of Voltage Selector P.C.B. (ForPH only) -549.25. Disassembly of CD Servo P.C.B.-5510 Replacement of Traverse Unit -5610.1. Disassembling Procedures -5610.2. Assembling Procedure-5711 Service Position-5911.1. Checking and Repairing of Main P.C.B.-5911.2. Checking and Repairing of D-Amp P.C.B. -5911.3. Checking and Repairing of Panel P.C.B.-5911.4. Checking and Repairing of Jupiter P.C.B.-5911.5. Checking and Repairing of SMPS P.C.B.-6012 Voltage & Waveform Chart-6112.1. CD SERVO P.C.B. -6112.2. Main P.C.B. (1/2) -6212.3. Main P.C.B. (2/2) -6312.4. Jupiter P.C.B. (1/3)-6412.5. Jupiter P.C.B. (2/3)-6512.6. Jupiter P.C.B. (3/3)-6612.7. Panel P.C.B.-6612.8. D-Amp P.C.B. -6612.9. SMPS P.C.B. -6712.10. Tuner P.C.B.-6712.11. Waveform Table (1/2) -6813 Illustration of ICs, Transistor and Diode -6914 Simplified Block Diagram- 7114.1. Overall Simplified Block Diagram- 7114.2. D-Amp Block Diagram- 7215 Block Diagram- 7315.1. Servo/System Control - 7315.2. IC Terminal Chart (Servo/System Control)- 7415.3. Audio- 7515.4. Power Amplifier - 7615.5. Power Supply- 7716 Wiring Connection Diagram - 7817 Schematic Diagram Notes- 7918 Schematic Diagram- 8118.1. CD Servo Circuit- 8118.2. Main Circuit- 8218.3. Jupiter Circuit- 8818.4. Panel Circuit - 9218.5. CD Open Button, Remote Sensor, Tuner,Music Port/Headphone Circuit- 9418.6. D-Amp Circuit- 9518.7. SMPS Circuit- 9618.8. Voltage Selector Circuit (For PH Only)- 9819 Printed Circuit Board- 9919.1. CD Servo & Voltage Selector P.C.B.- 9919.2. Main P.C.B.-10019.3. Jupiter P.C.B. -10119.4. Panel P.C.B.-10219.5. CD Open Button, Remote Sensor, Tuner,Music Port/Headphone & D-Amp P.C.B.-10319.6. SMPS P.C.B. (For PH Only) -10419.7. SMPS P.C.B. (For PN Only) -10520 Terminal Function of ICs-10720.1. IC2003 (RFKWAKX30PN): IC MICRO-PROCESSOR -10720.2. IC6901(C0HBB0000057): IC FL Driver -10821 Exploded View and Replacement Parts List-10921.1. Exploded View and Mechanical replacementPart List -10921.2. Electrical Replacement Part List-115RadioFans.CN 收音机爱 好者资料库31Safety Precautions1.1.General Guidelines1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated ordamaged by the short circuit.2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properlyinstalled.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 CHECK1. 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 onthe equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to thechassis, the reading should be between 1M and 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 CHECK1. 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 agood 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 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 a measurement is outside of thelimits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it isreturned to the customer.Figure 11.2.Before Use (For PH only)Be sure to disconnect the mains cord before adjusting the voltage selector.Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will beused. (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 correctly. (There is no voltage selector for some countries,the correct voltage is already set.)1.3.Caution For Fuse Replacement41.4.Before Repair and AdjustmentDisconnect AC power to discharge unit AC Capacitors as such (C5701, C5703, C5704, C5705, C5706, C5707, C5708) through a10 , 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 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 CircuitryThe 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 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.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 Parts InformationSafety 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 critical partsshould be replaced with manufacturers specified parts to prevent shock, fire or other hazards. Do not modify the original designwithout permission of manufacturer.SafetyRef. No.Part No.Part Name & DescriptionRemarks6REXX10301P RED WIRE (VOLTAGE-SMPS)PH7REXX10311P BLACK WIRE (VOLTAGE-SMPS) PH13RGRX1002C-A3REAR PANELPN13RGRX1002D-A2REAR PANELPH37RKMX1003-KTOP CABINET 401RAEX0190Z-VTRAVERSE UNITA2K2CB2CB00021AC CORDPNA2K2CQ2CA00007AC CORDPHA3K2DAYYY00002AC CORDPHA3RQTX1090-MO/I BOOK (Sp)PNA3RQTX1091-MO/I BOOK (Sp)PHA3RQTX1100-MO/I BOOK (En)PNPCB3REPX0809ASMPS P.C.B.(RTL) PNPCB3REPX0809CSMPS P.C.B.(RTL) PHPCB10REPX0809CVOLTAGE SELECTOR P.C.B.(RTL) PHDZ5701ERZV10V511CSZNRS5701K0ABCA000007SW VOLTAGE SELECTOR PHL5703G0B612H00002LINE FILTERT5701ETS39AG4M6ADMAIN TRANSFORMERPHT5701ETS39AG4NGADMAIN TRANSFORMERPNT5751ETS19AB2E6AGSUB TRANSFORMERT6000G4DYA0000214SWITCHING TRANSPC5701B3PBA0000402PHOTO COUPLERPC5702B3PBA0000402PHOTO COUPLERPC5720B3PBA0000402PHOTO COUPLERPC5799B3PBA0000402PHOTO COUPLERF1K5D632BK0007FUSEPHF1K5D802APA008FUSEPNTH5702D4CAA2R20001THERMISTORTH5860D4CC11040013THERMISTORTH5900D4CC11040013THERMISTORP5701K2AA2B000011AC INLETPHP5701K2AB2B000007AC INLETPNC2253F1H1H470A00447pF 50V5C2254F1H1H470A00447pF 50VC2263F2A0J471A016470uF 6.3VC5701F0CAF334A1050.33uFC5703F0CAF104A1050.1uFPHC5703F0CAF224A1050.22uFPNC5704F1BAF10200201000pFC5705F1BAF10200201000pFC5706F1BAF10200201000pFPHC5707F1BAF10200201000pFPHC5708F1BAF10200201000pFSafetyRef. No.Part No.Part Name & DescriptionRemarks62Warning2.1.Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive(ES) DevicesSome 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 andsemiconductor chip components. The following techniques should be used to help reduce the incidence of component damagecaused by electrostatic discharge (ESD).1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on yourbody 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 devices, 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 not classified as “anti-static (ESD protected)” cangenerate 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 it. (Mostreplacement 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, touch the protective materialto 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 harmless motion such as thebrushing 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).72.2.Precaution of Laser DiodeCaution:This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens.Wavelength: 785 nm (CD)Maximum output radiation power from pickup: 100 W/VDELaser 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 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.82.3.Service caution based on Legal restrictions2.3.1.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 thisequipment in considering the globally environmental conservation. The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86F) more than thatof the normal solder.Definition of PCB Lead Free Solder being usedService caution for repair work using Lead Free Solder (PbF) The lead free solder has to be used when repairing the equipment for which the lead free solder is used.(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.) To put lead free solder, it should be well molten and mixed with the original lead free solder. Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC. Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt thelead free solder. Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 35030 degreesC (66286F).Recommended Lead Free Solder (Service Parts Route.) The following 3 types of lead free solder are available through the service parts route.RFKZ03D01K-(0.3mm 100g Reel)RFKZ06D01K-(0.6mm 100g Reel)RFKZ10D01K-(1.0mm 100g Reel)Note* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder. (See right figure)92.4.Handling Precautions for Traverse UnitThe laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must betaken avoid caution to electrostatic breakdown w