Panasonic-SAMAX170PH-cs-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. PSG1403014CE CD Stereo System Model No.SA-MAX170PH Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.1. General Guidelines- 3 1.2. Before Use - 3 1.3. Befor

2、e Repair and Adjustment- 4 1.4. Protection Circuitry- 4 1.5. Power Supply using SMPS Module- 5 1.6. Safety Parts Information - 5 2 Warning- 6 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices- 6 2.2. Precaution of Laser Diode- 6 2.3. General description abo

3、ut Lead Free Solder (PbF)- 7 2.4. Handling Precautions for Traverse Assy- 7 2.5. Grounding for electrostatic breakdown prevention - 8 3 Service Navigation- 9 3.1. Service Information-9 3.2. Firmware Update Procedure-9 4 Specifications- 10 5 Location of Controls and Components- 11 5.1. Remote Control

4、 Key Button Operation - 11 5.2. Main Unit Key Button Operation- 12 6 Service Mode- 13 6.1. Service Mode Table - 13 6.2. Doctor Mode Table- 15 7 Troubleshooting Guide - 19 8 Disassembly and Assembly Instructions- 20 8.1. Type of Screws - 20 8.2. Disassembly Flow Chart - 21 8.3. Main Components and P.

5、C.B. Locations- 22 8.4. Disassembly of Top Cabinet- 23 8.5. Disassembly of Front Panel Unit- 24 8.6. Disassembly of FL Display P.C.B. - 25 Please refer to the original service manual for: ? ? CD Mechanism Unit, Order No. PSG1303059AE ? ? Speaker system SB-MAX170PHK, Order No. PSG1403015CE RadioFans.

6、CN 收音机爱 好者资料库 2 8.7. Disassembly of Illumination Jog P.C.B.-25 8.8. Disassembly of Illumination Left P.C.B.-26 8.9. Disassembly of Bluetooth/NFC Kit-26 8.10. Disassembly of Volume Jog P.C.B.-26 8.11. Disassembly of Illumination Right P.C.B.-27 8.12. Disassembly of USB P.C.B. -27 8.13. Disassembly of

7、 Mic MPort P.C.B.-28 8.14. Disassembly of DJ Cabinet Unit-28 8.15. Disassembly of Button Left P.C.B.-29 8.16. Disassembly of Multi Control P.C.B.-30 8.17. Disassembly of Button Right P.C.B.-30 8.18. Disassembly of SMPS Module and Voltage Selector P.C.B.-31 8.19. Disassembly of Main P.C.B.-31 8.20. D

8、isassembly of CD Mechanism Unit-33 8.21. Disassembly of CD Interface P.C.B.-33 9 Service Position-34 9.1. Checking of FL Display P.C.B., Button Left P.C.B., Button Right P.C.B. and Multi Control P.C.B.-34 9.2. Checking of SMPS Module-35 9.3. Checking of Main P.C.B.-35 10 Block Diagram -37 10.1. Syst

9、em Control -37 10.2. Audio -41 10.3. Power Supply -43 11 Wiring Connection Diagram-45 12 Schematic Diagram-47 12.1. Schematic Diagram Notes-47 12.2. Main (CD Motor Driver) Circuit-49 12.3. Main (USB EMMC) Circuit-50 12.4. Main (SOC I/O Expander) Circuit -51 12.5. Main (DAMP) Circuit-53 12.6. Main (C

10、onnector) Circuit -55 12.7. Main (DSP) Circuit-56 12.8. Main (Tuner AUX) Circuit -57 12.9. Main (VREG Fan) Circuit-58 12.10. FL Display Circuit -61 12.11. Button Left Circuit-62 12.12. Button Right, USB, Illumination Left & Illumination Right Circuit-63 12.13. Mic MPort, Illumination Jog & CD Interf

11、ace Circuit -64 12.14. Volume Jog & Multi Control Circuit -65 13 Printed Circuit Board -66 13.1. Main P.C.B. (Side A)-66 13.2. Main P.C.B. (Side B)-67 13.3. FL Display, Button Left & Button Right P.C.B. -68 13.4. Mic MPort, USB, Volume Jog & Illumination Jog P.C.B.-69 13.5. Multi Control, Illuminati

12、on Left & Illumination Right P.C.B.-70 13.6. CD Interface P.C.B.-71 14 Voltage and Waveform Measurement -73 14.1. Voltage Measurement-73 14.2. Waveform Chart -78 15 Exploded View and Replacement Parts List-79 15.1. Cabinet Parts Location 1-79 15.2. Cabinet Parts Location 2-80 15.3. Cabinet Parts Loc

13、ation 3-81 15.4. Packaging-82 15.5. Mechanical Replacement Part List- 83 15.6. Electrical Replacement Part List- 85 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 equipment which are important for safety. Thes

14、e 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 hazards. Do not modify the original design w

15、ithout 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 accidents resulting in personal injury from el

16、ectrical 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 damaged by the short circuit. 4. After servicin

17、g, 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.Leakage Current Cold Check 1. Unplug the AC cor

18、d 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 exposed metallic part has a return path to

19、the chassis, 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 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 wa

20、tts 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 across the resistor. 4. Check each exposed

21、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, leak

22、age 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 1.2.Before Use Be sure to disconnect the mains cord befor

23、e adjusting the voltage selector as shown in Figure 1-2. 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 be used. Note that this unit will be seriously damaged if this setting is not made correctly. (There is no vo

24、ltage selector for some countries, the correct voltage is already set.) RadioFans.CN 收音机爱 好者资料库 4 Figure 1-2 1.3.Before Repair and Adjustment Disconnect AC power to discharge AC capacitor as indicate below diagram through a 10 , 10 W resistor to ground. Figure 1-3 Caution: DO NOT SHORT-CIRCUIT DIREC

25、TLY (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 110127 V / 220240 V, 50/60 Hz in FM Tuner at volume minimum should be 850mA. 1.4.Protection Circ

26、uitry 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 circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connec

27、tion wires are 5 “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 aft

28、er one minute. Note: When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again. 1.5.Power Supply using SMPS Module This model uses Switching Mode Power Supply (SMPS) to provide the power supply to the unit. Here is the supplied part no.

29、 for the SMPS Module 1) N0AD2GP00001 Figure 1-4 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, Exploded View & Replacement Parts List. It is essential that these

30、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. SafetyRef No.Part No.Part Name & DescriptionRemarks 25RGR0455G-AREAR PANEL 40RKM0744-K2TOP CABINET 301RAE1046Z-VTRAVERSE

31、 ASSY A2K2CQ2YY00119AC CORD A3VQT5F32-1O/I BOOK (Sp/En) A3VQT5K73O/I BOOK (En) PCB13N0AD2GP00001SMPS P.C.B. 6 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. S

32、uch 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 before handling any semiconductor component or semiconductor-equipped assemb

33、ly, 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 power to the unit under test. 2. After removing an electrical assembly equip

34、ped 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 remo

35、val 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 devices. 6. Do not remove a replacement ES device from its protective pac

36、kage 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. Immediately before removing the protective material from the leads of a replacement

37、 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. Minimize bodily motions when handling unpackaged replacement ES devices.

38、(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). 2.2.Precaution of Laser Diode Caution: This product utilizes a laser diode with the unit turne

39、d “on”, invisible 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

40、 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. 7 Figure 2-1 2.3.General description about Lead Free Solder (PbF) The lead fre

41、e 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 hand, the lead free solder is the alloy mai