Panasonic-SAHT892EE-htss-sm 电路图 维修手册.pdf

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1、lGeneral Power Source:AC 230V, 50Hz Power consumption:110 W Dimensions (WHD):43060354 mm Mass:3.35kg lAmplifier section RMS Output Power: Dolby Digital Mode lTotal RMS Dolby Digital mode Power:425 W At 1kHz and total harmonic of 10% lFront:100 W/ Channel (3) At 100Hz and total harmonic of 10% lActiv

2、e subwoofers:225 W/ Channel (6) DIN Output Power: Dolby Digital Mode: lTotal DIN Dolby Digital mode Power: 225 W At 1kHz and total harmonic of 1% lFront:75 W/ Channel (3) At 100Hz and total harmonic of 1% 2006 Matsushita Electric Industrial Co., Ltd.All rightsreserved.Unauthorizedcopyingand distribu

3、tion is a violation of law. SA-HT892EE Colour (S).Silver Type lSubwoofer:75 W/ Channel (6) lPreset Memory:FM 15 stations AM/MW 15 stations lFM tuner section (FM) Frequency Range:87.50-108.00MHz (50kHz step) Sensitivity:2.5V (IHF) S/N 26dB2.2V Antenna terminals:75 (unbalanced) lAM tuner section (AM/M

4、W) Frequency Range:522-1629kHz (9kHz step) AM Sensitivity S/N 20dB at 999kHz: 560V/m lPhone jack: Terminal:Stereo 3.5 mm jack lMic jack: Sensitivity:0.7mV (1.2k) Terminal:Mono 6.3 mm jack (1 system) lMusic Port (Front): DVD Home Theater Sound System Specifications ORDER NO.MD0607247CE RadioFans.CN 收

5、音机爱 好者资料库 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) (2)DVD-RAM DVD-VR, MP3(*2,6), JPEG(*2,3), MPEG4(*2,4), 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 D

6、VD-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(*2,3), MPEG4(*2,4), DivX (*1,2), HighMAT Level 2 (Audio and Image) *1Plays all versions of DivX video (incl

7、uding 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 recognizable audio, picture and video contents and groups: 4000 audio, picture and video contents and 400 gr

8、oups. *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, or 4:4:4). Extremely long and narrow pictures may not be displayed. *4MPEG4 data recorded with Panasonic SD multi cameras or DVD video recorders. lConforming t

9、o 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 compatible with Multiple Bit Rate (MBR) Pick up: Wavelength: lCD:785nm lDVD:662nm Laser power: lCD:CLASS 1

10、M lDVD:CLASS 1 Audio output (DISC): Number of channels:2.1 ch (FL, FR, SW) Audio performance: Frequency response: DVD (linear audio):4 Hz-22 kHz (48 kHz sampling) 4 Hz-44 kHz (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

11、 (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 level:1 Vp-p (75 ) Terminal:Pin jack (1 system) S-video output: Y output level:1 Vp-p (75 ) C output level:PAL; 0.3V

12、p-p (75) NTSC; 0.286 Vp-p (75 ) TerminalS terminal (1 system) Component video output (NTSC: 480p/480i, PAL: 576p/576i): 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, PB: blue, PR: red) (1 system) HDMI AV output: Terminal:19-pin t

13、ype A connector HDMI Ver.1.2a (EDID Ver.1.3) Power consumption in standby mode: approx 0.9W 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 so

14、lder (PbF). Mechanism: This model uses DL2SU (Single tray) mechanism. Refer to the original service manual for *1 & *2 2 SA-HT892EE RadioFans.CN 收音机爱 好者资料库 1 Safety Precautions 5 1.1. GENERAL GUIDELINES 5 CONTENTS Page Page 3 SA-HT892EE RadioFans.CN 收音机爱 好者资料库 1.2. Before Repair and Adjustment 5 1.3

15、. Protection Circuitry 5 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 6 3 Precaution of Laser Diode 7 4 About Lead Free Solder (PbF) 8 4.1. Service caution based on legal restrictions 8 5 Accessories 9 6 Handling Precautions for Traverse Unit 10 6.1. Cau

16、tions to Be Taken in Handling the Optical Pickup Unit 10 6.2. Grounding for electrostatic breakdown prevention 10 7 Operation Procedures 12 7.1. Remote Control Key Buttons Operations 12 7.2. Main Unit Key Buttons Operations 13 7.3. Use of HDAVI Control 14 7.4. Using of Music Port 15 7.5. Disc Inform

17、ation 16 7.6. About DivX VOD Content 18 7.7. Audio & Video Connections 19 8 New Features 20 8.1. About HDMI 20 9 Self-Diagnosis and special mode setting 22 9.1. Service Mode Summary Table 22 9.2. Service Mode Table 22 9.3. DVD Self Diagnostic Function-Error Code 27 9.4. Sales Demonstration Lock Func

18、tion 29 9.5. Service Precautions 30 10 Assembling and Disassembling 31 10.1. Disassembly Flow Chart 32 10.2. Main Components and P.C.B. Locations 33 10.3. Disassembly of Top Cabinet 34 10.4. Disassembly of the DVD Lid (When taking out disc manually) 34 10.5. Disassembly of Front Panel Assembly 35 10

19、.6. Disassembly of Music Port P.C.B, Mic P.C.B., FL P.C.B. & Top Button P.C.B. 35 10.7. Disassembly of Scart P.C.B. 36 10.8. Disassembly of DVD Mechanism Unit 36 10.9. Disassembly of Relay P.C.B. 36 10.10. Disassembly of Rear panel 37 10.11. Disassembly of HDMI Module P.C.B. 37 10.12. Disassembly of

20、 Main P.C.B., AC-Inlet P.C.B. & Tuner Extent P.C.B. 37 10.13. Disassembly of Digital Amp IC (IC5000) 38 10.14. Disassembly of Regulator Diodes & Transistor 38 10.15. Disassembly of Switch Regulator IC (IC5701/D5702) 39 11 Service Position 40 11.1. Servicing position of the HDMI Module P.C.B. 40 11.2

21、. Servicing position of the Main P.C.B. 40 12 Assembly and disassembly of Mechanism Unit 41 12.1. Disassembly Procedure 41 13 Measurements and Adjustments 47 13.1. Service Tools and Equipment 47 13.2. Important points in adjustment 47 13.3. Storing and handling of test discs 47 13.4. Optical adjustm

22、ent 48 14 Abbreviations 49 15 Voltage and Waveform Chart 51 15.1. HDMI Module P.C.B. 51 15.2. Main P.C.B. 53 15.3. FL P.C.B., Scart P.C.B., Mic P.C.B. & Tray Loading P.C.B. 55 15.4. Waveform Chart 56 16 Illustration of ICs, Transistors and Diodes 58 17 Wiring Connection Diagram 59 18 Block Diagram 6

23、1 19 Schematic Diagram Notes 69 20 Schematic Diagram 71 20.1. (A) Optical Pickup Unit & HDMI Module Circuit 71 20.2. (B) Main Circuit 77 20.3. (C) Power & AC-inlet Circuit 82 20.4. (D) FL, Top Button, Tray Loading, Tuner Extent, Relay, Mic, Music Port & Scart Circuit 86 21 Printed Circuit Board 89 2

24、1.1. (A) HDMI Module P.C.B. 89 21.2. (B) Main P.C.B. 90 21.3. (C) Tuner Extent, AC-inlet, Tray Loading, FL, Music port & Top button P.C.B. 91 21.4. (D) Mic, Scart & Relay P.C.B. 92 22 Basic Troubleshooting Guide 93 22.1. Basic Troubleshooting Guide for Traverse Unit (HDMI Module P.C.B) 93 22.2. Basi

25、c Troubleshooting Guide for HDMI AV output 94 23 Overall Block (HT892) 95 23.1. HT892 DVD Unit Block 96 23.2. HT892 Block (Analog Signal : DVD 5.1ch Play Back Mode) 97 23.3. HT892 Block (Analog Signal : 2ch Analog Input Mode) 98 23.4. HT892 Power Supply Block 99 23.5. HT892 Power Block (SMPS) 100 24

26、 Terminal Function of ICs 101 24.1. IC2018 (C2CBYY000293): System Control IC 101 25 Exploded Views 102 25.1. Cabinet Parts Location 102 25.2. Packaging 104 26 Replacement Parts List 105 26.1. Component Parts List 106 4 SA-HT892EE 1 Safety Precautions 1.1. GENERAL GUIDELINES 1. When servicing, observ

27、e 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, insulation papers shields are properly installed. 3. After servicing, carry

28、 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 resistance value, with an ohmmeter, between the jumpered AC plug and

29、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 metal does not have a return path to the chassis, the reading must be.

30、 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 capacitors, between each exposed metallic part on the set and a good earth gr

31、ound 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 point. 5. Reverse the AC plug in the AC outlet and repeat each of the a

32、bove 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 case a measurement is outside of the limits specified, there is a possibi

33、lity 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 C5701, C5706, C5714, C5736, C5737 through a 10 , 10 W resistor to ground. DO NOT SHORT-CIRCUIT DI

34、RECTLY (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 230 V, 50 Hz in NO SIGNAL mode (at volume minimum) should be 600 mA. 1.3. Protection Circuitr

35、y 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 connection

36、 wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. 5 SA-HT892EE 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 ag

37、ain 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 Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged ea

38、sily by static electricity. Such components commonly are called Electrostatically 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 o

39、f 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 by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist s

40、trap, 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 assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the as

41、sembly. 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-static (ESD protected) can generate electrical charge sufficient to damage ES devices. 5. Do not use freon-propelle

42、d 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 ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conduct

43、ive 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 to the chassis or circuit assembly into which the device will be installed. Caution Be sure no power is applied

44、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 brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static elect

45、ricity (ESD) sufficient to damage an ES device). 6 SA-HT892EE 3 Precaution of Laser Diode CAUTION : This product utilizes a CLASS 1 / CLASS 1M laser. Invisible laser radiation is emitted from the optical pick up lens. When the unit is turned on: Wavelength : 662nm/785nm Maximum output radiation powe

46、r from pick up : 100W/VDE Laser radiation from pick up unit is safety level, but be sure the followings: 1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous. 2. Do not adjust the variable resistor on the pick up unit. It was already adjusted. 3. Do n

47、ot look at the focus lens using optical instruments. 4. Recommend not to look at pick up lens for a long time. 7 SA-HT892EE 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 th

48、e 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 mainly consists of tin (Sn), si

49、lver (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 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 equipmen