Panasonic-SABTT270P-htss-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. PSG1101004CE A6 Blu-ray DiscTM Home Theater Sound System Model No.SA-BTT270P SA-BTT270PC SA-BTT268P Vol.1 Product Color: (K).Black Type TABLE OF CONTENTS PAGEPAGE 1 Safety Precautions- 3 1.

2、1. GENERAL GUIDELINES- 3 1.2. Before Repair and Adjustment- 3 1.3. Protection Circuitry- 4 1.4. Safety Parts Information- 4 2 Warning- 5 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices - 5 2.2. Precaution of Laser Diode- 6 2.3. Service caution based on Legal

3、restrictions- 7 2.4. Handling Precaution for Traverse Unit-7 3 Service Navigation -9 3.1. Service Information-9 3.2. Combination of Multiple Pressing on the Remote Control-9 3.3. Entering Special Modes with Combination of Multiple Pressing on the Remote Control-9 3.4. Caution for Replacing Parts- 11

4、 4 Specifications- 13 4.1. Others (Licenses)- 14 Notes: Please refer to the original service manual for: Speaker system SB-BTT270P-K/PCK, Order No: PSG1101003CE. RadioFans.CN 收音机爱 好者资料库 2 5 Location of Controls and Components-15 5.1. Remote Control Key Button Operations-15 5.2. Main Unit Key Button

5、Operations -16 5.3. Speaker Connection-16 5.4. Power Saving Features-17 5.5. Connection to a Broadband Network -18 5.6. Network Easy Setting -19 5.7. Firmware Updates -21 5.8. Enjoying BD-LIVE or Picture-in-picture in BD- Video -22 5.9. Enjoying 3D Video -23 5.10. Using the iPod/iPhone -24 5.11. Enj

6、oying VIERA CAST-26 5.12. Playable discs/Cards-27 5.13. File Extension Type Support (MP3/JPEG)-28 6 Operating Instructions -29 6.1. Removing of disc during abnormality -29 7 Self-Diagnostic and Special Mode Setting -31 7.1. Special Mode Setting-31 7.2. Self-Diagnostic Function - Error Code-35 7.3. S

7、ervice Mode-38 8 Troubleshooting Guide-45 8.1. Troubleshooting Guide for F61 and/or F76-45 9 Service Fixture & Tools -48 9.1. Service Tools and Equipment-48 10 Disassembly and Assembly Instructions-49 10.1. Disassembly Flow Chart-50 10.2. Main Components and P.C.B. Locations-51 10.3. Disassembly of

8、Top Cabinet-52 10.4. Disassembly of Rear Panel-53 10.5. Disassembly of Fan-54 10.6. Disassembly of Front Panel Assembly -54 10.7. Disassembly of WI-FI P.C.B. (For SA-BTT270 Only)-55 10.8. Disassembly of Panel P.C.B.-56 10.9. Disassembly of Operation Button P.C.B.-57 10.10. Disassembly of Power Butto

9、n P.C.B.-58 10.11. Disassembly of iPod Cradle Assembly -59 10.12. Disassembly of iPod P.C.B.-60 10.13. Replacement of Front Lid Assembly -61 10.14. Disassembly of BD Mechanism Unit (BRS1P) -63 10.15. Disassembly of AC Inlet P.C.B.-86 10.16. Disassembly of D-Amp P.C.B. -87 10.17. Replacement of Digit

10、al Amplifier IC (IC5100/ IC5200/IC5300)-89 10.18. Disassembly of Digital P.CB.-91 10.19. Disassembly of AV P.C.B.-94 10.20. Disassembly of SMPS P.C.B.-95 10.21. Replacement of Switching Regulator IC (IC5701) -97 10.22. Replacement of Rectifier Diode (D5702)-99 10.23. Replacement of Thermal Diode (D5

11、802)- 101 10.24. Replacement of Regulator Diode (D5803)- 102 11 Service Position- 104 11.1. Checking & Repairing of Digital P.C.B. - 104 11.2. Checking & Repairing D-Amp P.C.B.- 105 11.3. Checking & Repairing SMPS P.C.B. - 107 11.4. Checking & Repairing Panel P.C.B. - 108 11.5. Checking & Repairing

12、of AV P.C.B.- 108 12 Voltage & Waveform Chart- 110 12.1. Digital P.C.B. (1/2) -110 12.2. Digital P.C.B. (2/2)- 111 12.3. AV P.C.B. -112 12.4. Panel P.C.B. -112 12.5. D-Amp P.C.B. (1/2)-113 12.6. D-Amp P.C.B. (2/2)-114 12.7. SMPS P.C.B.-115 12.8. Waveform Table (1/2)-116 12.9. Waveform Table (2/2)-11

13、7 13 Illustration of ICs, Transistor and Diode-118 14 Simplified Block Diagram-119 15 Block Diagram-120 15.1. System Control-120 15.2. Audio & Video -121 15.3. Power Supply(Main Section) -123 16 Wiring Connection Diagram -125 17 Schematic Diagram-127 17.1. Schematic Diagram Notes -127 17.2. Digital(

14、Micon/Power) Circuit -129 17.3. AV Circuit -136 17.4. D-Amp Circuit-137 17.5. Panel Circuit -141 17.6. Power Button, Operation Button & iPod Circuit -142 17.7. SMPS Circuit-143 17.8. AC Inlet Circuit -145 18 Printed Circuit Board-146 18.1. Digital P.C.B.-146 18.2. AV, Panel, Power Button, Operation

15、Button & iPod P.C.B. -148 18.3. D-Amp P.C.B.-149 18.4. SMPS & AC Inlet P.C.B. -150 19 Terminal Function of ICs-151 19.1. IC6001(C0HBB0000057): IC FL Driver -151 20 Exploded View and Replacement Parts List-153 20.1. Exploded View and Mechanical replacement Part List -153 20.2. Electrical Replacement

16、Part List-159 RadioFans.CN 收音机爱 好者资料库 3 1Safety Precautions 1.1.GENERAL GUIDELINES 1. 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. 2. After servicing, see to it that all the protective devi

17、ces such as insulation barriers, insulation papers shields are properly installed. 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 CHECK 1. Unplug the AC cord and connect a jumper between the t

18、wo 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 the chassis, the reading should be b

19、etween 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 watts resistor, in parallel with a 0.1

20、5F capacitors, between each exposed metallic part on the set and a good 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

21、 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 millia

22、mp. 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 1.2.Before Repair and Adjustment Disconnect AC power to discharge unit AC Capacitors as such (C57

23、00, C5701, C5702, C5704, C5705, C5706) through a 10 , 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

24、consumption at AC 120 V, 60 Hz in NO SIGNAL mode at volume minimum should be 600 mA. 1.2.1.Caution for fuse replacement RadioFans.CN 收音机爱 好者资料库 4 1.3.Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed: No sound is heard when the power is

25、 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

26、 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

27、again. 1.4.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 & Replacement Parts List. It is essential that these critical parts should be replaced with manufacturers

28、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 10REXX11861P RED WIRE (AC INLET-SMPS) 11REXX11871P BLACK WIRE (AC INLET-SMPS) 19RGRX1006E-B1REAR PANELBTT270P 19RGRX1006E

29、-C2REAR PANELBTT270PC 19RGRX1006E-DREAR PANELBTT268P 29RKMX1010-KTOP CABINET 29-1RMNX1062SMPS PCB TOP INSULATOR 54RXQX1056SMPS PC SHEET UNIT 55RXQX1057AC IN PC SHEET UNIT 60VXY2122TBD MECHANISM 101VQL1V70-JLASER CAUTION LABEL A2K2CB2CB00021AC CORD A3VQT3D27-1O/I BOOK (En)BTT270P A3VQT3D28-1O/I BOOK

30、(Cf)BTT270PC A3VQT3M40-1O/I BOOK (En)BTT268P PCB6REP4699EAC INLET P.C.B(RTL) PCB7REP4699ESMPS P.C.B.(RTL) PCB9RFKB4689ADIGITAL P.C.B. ASSYJIG & ADJ, (ESD) DZ5701ERZV10V511CSZNR L5701ELF19H520EINDUCTOR L5702ELF19H520EINDUCTOR T5701ETS61BA11GBDTRANSFORMER T5751ETS19AB2E6AGSUB TRANSFORMER T6100G4D1A000

31、0142SWITCHING TRANSFORMER PC5702B3PBA0000503PHOTO COUPLER PC5720B3PBA0000503PHOTO COUPLER PC5799B3PBA0000503PHOTO COUPLER PC5901B3PBA0000503PHOTO COUPLER F1K5D602APA008FUSE TH5702D4CAA2R20001THERMISTOR P5701K2AB2B000007AC INLET C5700F1BAF10200201000pF C5701F0CAF104A1050.1uF C5702F0CAF104A1050.1uF C5

32、704F1BAF10200201000pF C5705F1BAF10200201000pF C5706F1BAF471A013470pF 5 2Warning 2.1.Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- tros

33、tatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD). 1. Immedia

34、tely before 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 appl

35、ying 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 unsold

36、er ES devices. 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 da

37、mage ES 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. Im

38、mediately 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 precauti

39、ons. 8. 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). 6 2.2.Precaution of Laser Diode Caution: This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup len