Panasonic-SAHT441WP-htss-sm 电路图 维修手册.pdf

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1、lGeneral Power Source:AC 120V, 60Hz Power consumption:125 W Dimensions (WHD):43070439.2 mm (16-15/16”2-3/4”17-19/64”) Mass:4.7 kg (10.36Ibs) lAmplifier section RMS Output Power: Dolby Digital Mode lTotal RMS Dolby Digital mode Power:850 W At 1kHz and total harmonic of 10% lFront:110 W/ Channel (3) l

2、Center:225 W/ Channel (6) lSurround:90 W/ Channel (4) At 100Hz and total harmonic of 10% l Subwoofer:225 W/ Channel (6) FTC Output Power: Dolby Digital Mode lTotal FTC Dolby Digital mode Power: 360 W At 120Hz-20kHz and total harmonic of 1% lFront:40 W/ Channel (3) lCenter:75 W/ Channel (6) lSurround

3、:70 W/ Channel (4) 2006 Matsushita Electric Industrial Co., Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-HT441WP Colour (S).Silver Type At 45Hz-120Hz and total harmonic of 1% lSubwoofer:65 W/ Channel (6) lPreset Memory:FM 15 stations AM/MW 15 stations lFreque

4、ncy Modulation (FM) Frequency Range:87.9-107.9MHz (200kHz step) 87.5-108.0MHz (100kHz step) Sensitivity:2.5V (IHF) S/N 26dB2.2V Antenna Terminals:75 (unbalanced) lAmplitude Modulation (AM/MW) Frequency Range:520-1710kHz (10kHz step) AM Sensitivity S/N 20dB at 1000kHz: 560V/m lPhone Jack: Terminal:St

5、ereo 3.5 mm (1/8”) jack lMusic Port (Front): Sensitivity:100mV (4.7k) Terminal:Stereo 3.5 mm (1/8”) jack lDisc section Discs played 8 cm (3”) or 12 cm (5”): DVD Home Theater Sound System Specifications ORDER NO.MD0607235CE A6 RadioFans.CN 收音机爱 好者资料库 (1) DVD DVD-Video, DVD-Audio (2) DVD-RAM DVD-VR, J

6、PEG(*4,5) (3) DVD-R DVD-Video (4) DVD-RW DVD-Video (5) +R/+RW Video (6) CD, CD-R/RW CD-DA, Video CD, SVCD(*1), MP3(*2,5), WMA(*3,5), JPEG(*4,5), HighMAT Level 2 (Audio and Image) *1Conforming to IEC62107 *2MPEG-1 Layer 3, MPEG-2 Layer 3 *3Windows Media Audio Ver.9.0 Class 2A .lNot compatible with Mu

7、ltiple Bit Rate (MBR) *4Exif Ver 2.1 JPEG Baseline files lPicture resolution: between 320 x 240 and 6144 x 4096 pixels (Sub sampling is 4:2:2 or 4:2:0). Extremely long and narrow pictures may not be displayed. *5The total combined maximum number of recognizable audio and picture contents and groups:

8、 4000 audio and picture contents and 400 groups. Pick up: Wavelength: lCD:785nm lDVD:662nm Laser power: lCD:CLASS I lDVD:CLASS II 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

9、 (96 kHz sampling) 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:NTSC Composite video output: Output level:1 Vp-p (

10、75 ) Terminal:Pin jack (1 system) S-video output: Y output level:1 Vp-p (75 ) C output level:NTSC; 0.286 Vp-p (75 ) TerminalS terminal (1 system) Component video output (480p/480i): Y output level:1 Vp-p (75 ) PBoutput level:0.7 Vp-p (75 ) PRoutput level:0.7 Vp-p (75 ) Terminal:Pin jack (Y: green, P

11、B: blue, PR: red) (1 system) Power consumption in standby mode: 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). Mech

12、anism: This model uses RC1 (Rotary tray) mechanism. Refer to original service manual for *1, *2, *3, *4, *5, *6 . This model is equipped with features of wireless surround (SH-HT441W) & XM satellite radio. 2 SA-HT441WP RadioFans.CN 收音机爱 好者资料库 1 Safety Precautions 5 1.1. GENERAL GUIDELINES 5 1.2. Bef

13、ore Repair and Adjustment 5 1.3. Protection Circuitry 6 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 6 3 Precaution of Laser Diode 8 4 About Lead Free Solder (PbF) 9 4.1. Service caution based on legal restrictions 9 5 Handling Precautions for Traverse U

14、nit 10 5.1. Cautions to Be Taken in Handling the Optical Pickup Unit 10 5.2. Grounding for electrostatic breakdown prevention 10 6 Accessories 12 7 Operation Procedures 13 7.1. Remote Control Key Buttons Operations 13 7.2. Main Unit Key Buttons Operations (SA-HT441W) 14 7.3. Using of Music Port 15 7

15、.4. Wireless Surround Connections/Operations 16 7.5. XM Satellite Radio 17 7.6. Disc information 18 8 New Features 20 8.1. Using of Wireless Surround Sound 20 8.2. Using the XM Satellite Radio 22 9 Self-Diagnosis and special mode setting 24 9.1. Service Mode Summary Table 24 9.2. Service Mode Table

16、24 9.3. DVD Self Diagnostic Function-Error Code 29 9.4. Sales Demonstration Lock Function 31 9.5. Service Precautions 32 10 Assembling and Disassembling 33 10.1. Disassembly Flow Chart 34 10.2. Main Components and P.C.B. Locations 35 10.3. Disassembly of the Top Cabinet 36 10.4. Disassembly of the F

17、ront Panel 36 10.5. Disassembly of the Tray Assembly 36 10.6. Disassembly of the Rear Panel 37 10.7. Disassembly of the Mechanism Base 37 CONTENTS Page Page 3 SA-HT441WP RadioFans.CN 收音机爱 好者资料库 10.8. Disassembly of the FL & Head Phone P.C.B. 37 10.9. Disassembly of the XM Module P.C.B. 38 10.10. Dis

18、assembly of the Main P.C.B. 38 10.11. Disassembly of the AC-Inlet, Power & Sub Power P.C.B 38 10.12. Disassembly of Digital Amp IC (IC5000) 39 10.13. Disassembly of the Digital Amp IC (IC5400) 39 10.14. Disassembly of Regulator Diodes & Transistor 40 10.15. Disassembly of Switch Regulator IC & Diode

19、 (IC5701/D5702) 40 10.16. Disassembly of the Tray Base Guide (L) and Tray Base Guide (R) 41 10.17. Disassembly of the Rotary Tray 41 10.18. Disassembly of the Traverse Unit 42 10.19. Assembly of Tray Assembly 45 11 Service Fixture and Tools 46 12 Service Positions 46 12.1. Checking & Repair Main P.C

20、.B., Power P.C.B., FL and Head phone P.C.B. 46 12.2. Checking & Repair DVD Module P.C.B 46 12.3. Checking & Repair XM Module P.C.B 47 13 Measurements and Adjustments 48 13.1. Service Tools and Equipment 48 13.2. Important points in adjustment 48 13.3. Storing and handling of test discs 48 13.4. Opti

21、cal adjustment 49 14 Abbreviations 50 15 Voltage and Waveform Chart 52 15.1. DVD Module P.C.B. 52 15.2. Main P.C.B. 53 15.3. Power P.C.B. 54 15.4. FL P.C.B. 54 15.5. Loading P.C.B., Tray Motor P.C.B., Sensor P.C.B. 55 15.6. XM Module P.C.B. 55 15.7. Waveform Chart 56 16 Illustration of ICs, Transist

22、ors and Diodes 57 17 Wiring Connection Diagram 59 18 Block Diagram 61 19 Schematic Diagram Notes 69 20 Schematic Diagram 71 20.1. (A) Optical Pickup Unit & DVD Module Circuit 71 20.2. (B) Main Circuit 76 20.3. (C) Power, AC-inlet & Sub Panel Circuit 80 20.4. (D) FL, Headphone Circuit 85 20.5. (E) Lo

23、ading Motor, Tray Motor, Sensor & XM Module Circuit 86 21 Printed Circuit Board 89 21.1. (A) DVD Module P.C.B. 89 21.2. (B) Main, AC-Inlet, Sub-power P.C.B. 90 21.3. (C) Power P.C.B. 91 21.4. (D) FL, Headphone, Loading motor, Tray motor, Sensor & XM Module P.C.B. 92 22 Basic Troubleshooting Guide 93

24、 22.1. Basic Troubleshooting Guide for DVD Module 93 22.2. Basic Troubleshooting Guide for Traverse Unit 95 23 Overall Block for HT441W 96 23.1. HT441W DVD Unit Block 97 23.2. HT441W Block (Analog Signal : DVD 5.1ch Play Back Mode) 98 23.3. HT441W Block (Analog Signal : 2ch Analog Input Mode) 99 23.

25、4. HT441W Power Supply Block 100 23.5. HT441W Power Block (SMPS) 101 24 Terminal Function of ICs 102 24.1. IC2001 (MNBCP49KAF1): Micro-processor IC 102 25 Explode Views 103 25.1. Cabinet Parts Location 103 25.2. Packaging 106 26 Replacement Parts List 107 26.1. Component Parts List 108 4 SA-HT441WP

26、1 Safety 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 devices such as insulation barriers, insul

27、ation 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 two prongs on the plug. 2. Measure the

28、 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 between 1M and 5.2M. When the exposed

29、metal does not have a return path to the chassis, the reading must be. Figure 1 1.1.2. LEAKAGE CURRENT HOT CHECK (See 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 capacit

30、ors, 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 at each p

31、oint. 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 cas

32、e 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. 1.2. Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C4891, C5701, C5706, C5714,

33、 C5736, C5737 through a 10 , 10 W resistor to ground. 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

34、NO SIGNAL mode (at volume minimal) should be 900 mA. 5 SA-HT441WP 1.2.1. Caution for fuse replacement 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 performanc

35、e. 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

36、 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. 2 Prevention of Electro Static Disch

37、arge (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 devices are integrated circuits and some field-effect tran

38、sistors 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 semiconductor-equipped assembly, drain off any ESD on your body

39、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 asse

40、mbly 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 device. Some solder removal devices not classified as anti-st

41、atic (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 package until immediately before you are r

42、eady 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 leads of a replacement ES device, touch the protective material

43、 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. (Otherwise harmless motion such as the bru

44、shing 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). 6 SA-HT441WP 7 SA-HT441WP 3 Precaution of Laser Diode CAUTION: This unit utilizes a class 1 laser. Invisible laser radiation is emitted fr

45、om the optical pickup lens. Wavelength: 662nm(DVD)/785nm(CD). Maximum output radiation power from pickup: 100W/VDE When the unit is turned on: 1. Do not look directly into the pick up lens. 2. Do not use optical instruments to look at the pick up lens. 3. Do not adjust the preset variable resistor o

46、n the pickup lens. 4. Do not disassemble the optical pick up unit. 5. If the optical pick up is replaced, use the manufacturers specified replacement pick up only. 6. Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposu

47、re. 8 SA-HT441WP 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 equipment in co

48、nsidering 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

49、) 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