Panasonic-SCCMAX5-spk-sm 电路图 维修手册.pdf

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1、 Panasonic Corporation 2014. All rights reserved. Unauthorized copying and distribution is a violation of law. PSG1408001CE Active Speaker System Model No.SC-CMAX5GS SC-CMAX5PH SC-CMAX5PR Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2.

2、 Caution for AC Cord (For GS only) - 4 1.3. Before Use (For PH only)- 4 1.4. Before Repair and Adjustment- 4 1.5. Protection Circuitry- 5 1.6. Safety Part Information-5 2 Warning -6 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices -6 2.2. Service caution b

3、ased on Legal restrictions -7 3 Service Navigation -8 RadioFans.CN 收音机爱 好者资料库 2 3.1. Service Information-8 4 Specifications-9 5 Location of Controls and Components-10 5.1. Main Unit & Remote Control Key Button Operations (For PH/PR)-10 5.2. Main Unit & Remote Control Key Button Operations (For GS)-

4、11 6 Service Mode-12 6.1. Self Diagnostic Mode-12 6.2. Self Diagnostic Function Error Code-13 6.3. Doctor Mode-14 7 Troubleshooting Guide-17 8 Disassembly and Assembly Instructions-21 8.1. Disassembly flow chart -22 8.2. Type of screws-23 8.3. Main Parts Location Diagram -23 8.4. Disassembly of Hand

5、le Bar Unit -24 8.5. Disassembly of Rear Panel-24 8.6. Disassembly of Amp Unit Block -26 8.7. Disassembly of Main P.C.B. Assembly -27 8.8. Disassembly of SMPS Module & Voltage Selector P.C.B.-27 8.9. Disassembly of Top Panel Unit -28 8.10. Disassembly of Bluetooth P.C.B. Assembly-28 8.11. Disassembl

6、y of Panel P.C.B.-29 8.12. Disassembly of FL Display P.C.B. -30 8.13. Disassembly of Top Front Panel Block -31 8.14. Disassembly of Tweeter Speaker (6cm) -32 8.15. Disassembly of Woofer Speaker (10cm) -32 8.16. Disassembly of Center Front Panel -33 8.17. Disassembly of Subwoofer Front Panel Block -3

7、4 8.18. Disassembly of Woofer Speaker (25cm)-36 8.19. Disassembly of Lighting Wire P.C.B. Assembly -36 9 Service Position-37 9.1. Checking of SMPS Module, Voltage Selector P.C.B. & Main P.C.B. Assembly -37 9.2. Checking of Bluetooth P.C.B. Assembly, Panel P.C.B. & FL Display P.C.B.-38 10 Block Diagr

8、am -41 10.1. SYSTEM CONTROL (1/3) BLOCK DIAGRAM -41 10.2. SYSTEM CONTROL (2/3) BLOCK DIAGRAM -42 10.3. SYSTEM CONTROL (3/3) BLOCK DIAGRAM -43 10.4. AUDIO (1/3) BLOCK DIAGRAM -44 10.5. AUDIO (2/3) BLOCK DIAGRAM -45 10.6. AUDIO (3/3) BLOCK DIAGRAM -46 10.7. POWER SUPPLY (1/2) BLOCK DIAGRAM -47 10.8. P

9、OWER SUPPLY (2/2) BLOCK DIAGRAM -48 11 Wiring Connection Diagram-49 12 Schematic Diagram-51 12.1. Schematic Diagram Notes-51 12.2. MAIN (SOC) CIRCUIT-53 12.3. MAIN (USB) CIRCUIT -54 12.4. MAIN (DSP) CIRCUIT (1/2) -55 12.5. MAIN (DSP) CIRCUIT (2/2) -56 12.6. MAIN (DAMP) CIRCUIT-57 12.7. MAIN (VREG FA

10、N) CIRCUIT (1/2) -58 12.8. MAIN (VREG FAN) CIRCUIT (2/2) -59 12.9. MAIN (CONNECTOR) CIRCUIT -60 12.10. PANEL CIRCUIT (1/3) -61 12.11. PANEL CIRCUIT (2/3) -62 12.12. PANEL CIRCUIT (3/3)- 63 12.13. FL DISPLAY CIRCUIT- 64 13 Printed Circuit Board- 65 13.1. MAIN P.C.B. ASSY (Side A)- 65 13.2. MAIN P.C.B

11、. ASSY (Side B)- 66 13.3. PANEL P.C.B.- 67 13.4. FL DISPLAY P.C.B. - 68 14 Voltage and Waveform Measurement- 69 14.1. Voltage Measurement - 69 15 Exploded View and Replacement Parts List- 75 15.1. Cabinet Parts Location (1/4)- 75 15.2. Cabinet Parts Location (2/4)- 76 15.3. Cabinet Parts Location (3

12、/4)- 77 15.4. Cabinet Parts Location (4/4)- 78 15.5. Packaging - 79 15.6. Mechanical Replacement Parts List - 81 15.7. Electrical Replacement Parts List - 83 RadioFans.CN 收音机爱 好者资料库 3 1Safety Precautions 1.1.General Guidelines 1. IMPORTANT SAFETY NOTICE There are special components used in this equi

13、pment 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 manufacturers specified parts to prevent X-RADIATION, shock, fire, or other ha

14、zards. 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 transformer of adequate power rating as this protects the technician from acci

15、dents 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 short circuit is found, replace all parts which have been overheated or damag

16、ed 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 checks to prevent the customer from being exposed to shock hazards. 1.1.1.Leaka

17、ge 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 equipment such as screwheads, connectors, control shafts, etc. When the ex

18、posed 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 the AC cord directly into the AC outlet. Do not use an isolation transform

19、er 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 voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential

20、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 equivalen

21、t) 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 rechecked before it is returned to the customer. Figure 1-1 RadioFans.CN 收

22、音机爱 好者资料库 4 1.2.Caution for AC Cord (For GS only) Figure 1-2 1.3.Before Use (For PH only) Be sure to disconnect the AC cord before adjusting the voltage selector. Use a minus(-) screwdriver to set the voltage selector (on the bottom panel) to the voltage setting for the area in which the unit will b

23、e used. 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.) Figure 1-3 1.4.Before Repair and Adjustment Caution : DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for ins

24、tance), 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 50/60Hz during power on, (In Standby mode) should be 550 mA. (For PR/GS) Current consumption at AC 110V - 127V / 220V

25、- 240V, at 50/60Hz during power on, (In Standby mode) should be 550 mA. (For PH) 5 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 t

26、his 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 th

27、e 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 Part Information Safety Parts List: There are s

28、pecial 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 hazard

29、s. Do not modify the original design without permission of manufacturer. SafetyRef. No.Part No.Part Name & DescriptionRemarks 10RGR0468A-AREAR PANELPH 10RGR0468B-AREAR PANELPR 10RGR0468B-BREAR PANELGS A2K2CA2YY00039AC CORDPR A2K2CJ2YY00101AC CORDGS A2K2CP2YY00061AC CORDGS A2K2CQ2YY00119AC CORDGS,PH

30、A2K2CT2YY00097AC CORDGS A3RQT9960-MO/I BOOK (En/Sp)PH,PR A3RQT9961-GO/I BOOK (En/Cn)GS A4K2DAYYY00002AC PLUG ADAPTORPH PCB5N0AC2GP00001SMPS MODULEGS,PR PCB5N0AD2GP00002SMPS MODULEPH 6 2Warning 2.1.Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semicond

31、uctor (solid state) devices can be damaged easily by static electricity. Such components 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 be

32、fore handling any semiconductor component or semiconductor-equipped assembly, drain off 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 po

33、wer 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 d

34、evices. 4. Use only an anti-static solder removal device. Some solder removal devices not 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

35、 devices. 6. Do not remove a replacement ES device from its protective package until immediately 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. Immediate

36、ly before removing the protective material from the leads of a replacement ES device, touch 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.

37、 Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless 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). 7 2.2.Service cautio

38、n based on Legal restrictions 2.2.1.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

39、 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 that of the normal solder. Definition of PCB Lead Free S

40、older being used Service 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 shoul

41、d 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 the lead free solder. U

42、se the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 35030 degrees C (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