Panasonic-SAHT545WE-htss-sm 电路图 维修手册.pdf

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1、lGeneral Power Source: E/ EG areas:AC 230V, 50Hz EB area:AC 230V-240V, 50Hz Power consumption:75 W Dimensions (WHD):43060354 mm Mass:3.3kg lAmplifier section RMS Output Power: Dolby Digital Mode lTotal RMS Dolby Digital mode Power:660 W At 1kHz and total harmonic of 10% lFront:110 W/ Channel (3) lCe

2、nter:110 W/ Channel (3) lSurround:110 W/ Channel (3) At 100Hz and total harmonic of 10% lActive subwoofers:110 W/ Channel (3) DIN Output Power: Dolby Digital Mode: lTotal DIN Dolby Digital mode Power: 430 W At 1kHz and total harmonic of 1% lFront:75 W/ Channel (3) lCenter:75 W/ Channel (3) 2006 Pana

3、sonic AVC Networks Singapore Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. SA-HT545WE SA-HT545WEB SA-HT545WEG Colour (S).Silver Type lSurround:65 W/ Channel (3) At 100Hz and total harmonic of 1% lSubwoofer:75 W/ Channel (3) lFM tuner section (FM) Preset

4、Memory:FM 15 stations AM/MW 15 stations Frequency Range:87.5-108.00MHz (50kHz step) Sensitivity:1.8V (IHF) S/N 26dB1.4V Antenna Terminals:75 (unbalanced) lAM tuner section (AM/ MW) Frequency Range:522-1629kHz (9kHz step) AM Sensitivity S/N 20dB at 999kHz: 560V/m lPhone Jack: Terminal:Stereo 3.5 mm j

5、ack lFront M. Port: Sensitivity:100mV (15k) Terminal:Stereo 3.5 mm jack lDisc section Discs played (8 cm or 12 cm): (1) DVD DVD-Video, DVD-Audio, DivX(*1,2) DVD Home Theater Sound System Specifications ORDER NO.MD0604129C2 RadioFans.CN 收音机爱 好者资料库 (2) DVD-RAM DVD-VR, MP3(*2,6), JPEG(*2,3), MPEG4(*2,4

6、), DivX(*1,2) (3) DVD-R DVD-Video, DVD-VR, MP3(*2,6), JPEG(*2,3), MPEG4(*2,4), DivX(*1,2) (4) DVD-R DL DVD-Video, DVD-VR (5) DVD-RW DVD-Video, DVD-VR, MP3(*2,6), JPEG(*2,3), MPEG4(*2,4), DivX(*1,2) (6) +R/+RW Video (7) +R DL Video (8) CD, CD-R/RW CD-DA, Video CD, SVCD(*5), MP3(*2,6), WMA(*2,7), JPEG

7、(*2,3), MPEG4(*2,4), DivX (*1,2), HighMAT Level 2 (Audio and Image) *1Plays all versions of DivX video (including DivX6) with standard playback of DivX media files. Certified to the DivX Home Theater Profile. lGMC (Global Motion Compensation) is not supported. *2The total combined maximum number of

8、recognizable audio, picture and video contents and groups: 4000 audio, picture and video contents and 400 groups. *3Exif Ver 2.1 JPEG Baseline files lPicture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub sampling is 4:0:0, 4:2:0, 4:2:2, 4:4:4). Extremely long and narrow pictures may not

9、be displayed. *4MPEG4 data recorded with Panasonic SD multi cameras or DVD video recorders. lConforming to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/G.726 audio system. *5Conforming to IEC62107 *6MPEG-1 Layer 3, MPEG-2 Layer 3 *7Windows Media Audio Ver.9.0 L3 lNot c

10、ompatible with Multiple Bit Rate (MBR) Pick up: Wavelength: lCD:785nm lDVD:662nm Laser power: lCD:CLASS 1M lDVD:CLASS 1 Audio output (DISC): Number of channels:5.1 ch (FL, FR, C, SL, SR, SW) Audio performance: Frequency response: DVD (linear audio):4 Hz-22 kHz (48 kHz sampling) 4 Hz-44 kHz (96 kHz s

11、ampling) DVD-Audio:4 Hz-88 kHz (192 kHz sampling) CD-Audio:4 Hz-20 kHz S/N ratio: CD-Audio:105 dB Dynamic range: DVD (linear audio):95 dB CD-Audio:95 dB Total harmonic distortion: CD-Audio:0.005 % lVideo section Video system: Signal system:PAL 625/50, PAL 525/60, NTSC Composite video output: Output

12、level:1 Vp-p (75 ) Terminal:Pin jack (1 system) Scart jack (1 system) S-video output: Y output level:1 Vp-p (75 ) C output level:PAL; 0.3Vp-p (75) NTSC; 0.286 Vp-p (75 ) TerminalS terminal (1 system) Scart jack (1 system) Component video output (NTSC: 480p/480i, PAL: 576p/576i): Y output level:1 Vp-

13、p (75 ) PBoutput level:0.7 Vp-p (75 ) PRoutput level:0.7 Vp-p (75 ) Terminal:Pin jack (Y: green, PB: blue, PR: red) (1 system) RGB video output: R output level:0.7 Vp-p (75 ) G output level:0.7 Vp-p (75 ) B output level:0.7 Vp-p (75 ) Terminal:Scart jack (1system) Power consumption in standby mode:

14、approx 0.5W Note: 1.Specifications are subject to change without notice. Mass and dimensions are approximate. 2.Total harmonic distortion is measured by the digital spectrum analyzer. Solder: This model uses lead free solder (PbF). Mechanism: This model uses DL2SU (Single tray) mechanism. 2 SA-HT545

15、WE / SA-HT545WEB / SA-HT545WEG RadioFans.CN 收音机爱 好者资料库 Refer to the original service manual for *1, *2, *3, *4, *5, *6. 3 SA-HT545WE / SA-HT545WEB / SA-HT545WEG RadioFans.CN 收音机爱 好者资料库 1 Safety Precautions 6 1.1. GENERAL GUIDELINES 6 1.2. Before Repair and Adjustment 6 1.3. Protection Circuitry 6 1.

16、4. Caution for AC Cord 7 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 8 3 Precaution of Laser Diode 9 4 About Lead Free Solder (PbF) 10 4.1. Service caution based on legal restrictions 10 5 Handling Precautions for Traverse Unit 11 5.1. Cautions to Be Ta

17、ken in Handling the Optical Pickup Unit 11 5.2. Grounding for electrostatic breakdown prevention 11 6 Accessories 13 7 Operation Procedures 14 7.1. Remote Control Key Buttons Operations 14 7.2. Main Unit Key Buttons Operations 15 7.3. Scart (AV) Terminal Connection 16 7.4. Wireless Surround Connecti

18、on / Operations 17 7.5. Using of Music Port 18 7.6. Disc information 19 7.7. About DivX VOD Content 22 8 Self-Diagnosis and special mode setting 23 8.1. Service Mode Summary Table 23 8.2. Service Mode Table 1 23 8.3. DVD Self Diagnostic Function-Error Code 28 8.4. Sales Demonstration Lock Function 3

19、0 8.5. Service Precautions 31 9 Assembling and Disassembling 32 9.1. Disassembly Flow Chart 33 9.2. Main Components and P.C.B. Locations 34 9.3. Disassembly of Top Cabinet 35 9.4. Disassembly of the DVD Lid (When taking out disc manually) 35 9.5. Disassembly of Front Panel Assembly 36 9.6. Disassemb

20、ly of Music Port P.C.B, FL P.C.B. & Top Button P.C.B. 36 9.7. Disassembly of DVD Mechanism Unit 37 9.8. Disassembly of DVD Module P.C.B. 37 9.9. Disassembly of Rear panel 37 9.10. Disassembly of Scart P.C.B. 37 9.11. Disassembly of Main P.C.B. , AC-Inlet P.C.B. & Tuner Extent P.C.B. 38 9.12. Disasse

21、mbly of Digital Amp IC 38 9.13. Disassembly of Regulator IC 38 9.14. Disassembly of Switch Regulator IC (IC5701) 38 10 Service Position 40 10.1. Servicing position of the DVD Module P.C.B. 40 10.2. Servicing position of the Main P.C.B. 40 11 Assembly and disassembly of Mechanism Unit 41 11.1. Disass

22、embly Procedure 41 12 Measurements and Adjustments 47 12.1. Service Tools and Equipment 47 12.2. Important points in adjustment 47 12.3. Storing and handling of test discs 47 12.4. Optical adjustment 48 13 Abbreviations 49 14 Voltage and Waveform Chart 51 14.1. DVD Module P.C.B. 51 14.2. Main P.C.B.

23、 52 14.3. FL P.C.B., Scart P.C.B., Tray Loading P.C.B. 53 14.4. Waveform Chart 54 15 Illustration of ICs, Transistors and Diodes 56 16 Wiring Connection Diagram 57 17 Block Diagram 59 18 Schematic Notes 67 19 Schematic Diagram 69 19.1. (A) DVD Module (DV3.2) Circuit 69 19.2. (B) Main, Power & AC-inl

24、et Circuit 73 19.3. (C) FL & Top Button Circuit 82 19.4. (C) Scart Circuit 83 19.5. (D) Tray Loading, Tuner Extent & Music Port Circuit 84 20 Printed Circuit Board 85 20.1. (A) DVD Module P.C.B. 85 20.2. (B) Main/Power P.C.B. 86 20.3. (C) Tuner Extent, AC in-let, FL, Music Port, Top Button, Scart &

25、Tray Loading P.C.B. 87 21 Basic Troubleshooting Guide 89 21.1. Basic Troubleshooting Guide for Traverse Unit (DVD Module P.C.B.) 89 21.2. Troubleshooting Guide for Power section (Power circuit) 89 22 Overall Block (HT545W) 90 22.1. HT545W DVD Unit Block 91 22.2. HT545W Block (Analog Signal : DVD 5.1

26、ch Play Back Mode) 92 22.3. HT545W Block (Analog Signal : 2ch Analog Input Mode) 93 22.4. HT545W Power Supply Block 94 22.5. HT545W Power Block (SMPS) 95 23 Terminal Function of ICs 96 CONTENTS Page Page 4 SA-HT545WE / SA-HT545WEB / SA-HT545WEG 23.1. IC2018 (C2CBYY000195): System Control Microproces

27、sor IC 96 24 Exploded Views 97 24.1. Cabinet Parts Location 97 24.2. Packaging 99 25 Replacement Parts List 100 25.1. Component Parts List 101 5 SA-HT545WE / SA-HT545WEB / SA-HT545WEG 1 Safety Precautions 1.1. GENERAL GUIDELINES 1. When servicing, observe the original lead dress. If a short circuit

28、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 devices such as insulation barriers, insulation papers shields are properly installed. 3. After servicing, carry out the following leakage current checks to p

29、revent 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 equi

30、pment 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 chassis, the reading must be. Figure 1 1.1.2. LEAKAGE CURRENT HOT CHECK (Se

31、e Figure 1.) 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 0.15F capacitors, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure

32、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 poi

33、nt 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 the limits specified, there is a possibility of a shock hazard, and the equipment shou

34、ld be repaired and rechecked before it is returned to the customer. 1.2. Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C5701, C5706, C5714, C5736, C5737 through a 10 , 10 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance

35、), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent. Current consumption at AC 230 V, 50 Hz in NO SIGNAL mode volume minimal should be 800 mA. (For EB area) Current consumption at AC 230 V - 240 V, 50 Hz in NO SIGNAL m

36、ode volume minimal should be 800 mA. (For E/EG areas) 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 turned on. Sound stops during a performance. The function of this circuitry is to prevent

37、circuitry damage if, for example, the positive and negative speaker connection wires are 6 SA-HT545WE / SA-HT545WEB / SA-HT545WEG “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:

38、 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. 1.4. Caution for AC Cord 7 SA-HT545WE / SA-

39、HT545WEB / SA-HT545WEG 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES

40、 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 electro static discharge (ESD). 1. Immediately before handling any semiconductor component or semic

41、onductor-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 power to the unit under test. 2. After removing an e

42、lectrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum 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 de

43、vice. 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 devices. 6. Do not remove a replacement ES device fro

44、m 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 comparable conductive material). 7. Immediately before removing the protective material from the lead

45、s 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. Minimize bodily motions when handling unpackaged replace

46、ment 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) sufficient to damage an ES device). 8 SA-HT545WE / SA-HT545WEB / SA-HT545WEG 3 Precaution of Laser Diode 9 SA-HT545

47、WE / SA-HT545WEB / SA-HT545WEG 4 About Lead Free Solder (PbF) 4.1. Service caution based on legal restrictions 4.1.1. 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 e

48、quipment 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

49、degrees C (86F) more than that of the normal solder. Definition of PCB Lead Free Solder being used The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder. (See right figure) 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 PC