Panasonic-SAHT995EE-htss-sm 电路图 维修手册.pdf

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1、lGeneral Power Source:AC 230V, 50Hz Power consumption:120 W Dimensions (WHD):43060354 mm Mass:3.35kg lAmplifier section RMS Output Power: Dolby Digital Mode lTotal RMS Dolby Digital mode Power:1000 W At 1kHz and total harmonic of 10% lFront:125 W/ Channel (3) lCenter:250 W/ Channel (6) lSurround:65

2、W/ Channel (4) At 100Hz and total harmonic of 10% lSubwoofer:250 W/ Channel (6) DIN Output Power: Dolby Digital Mode: lTotal DIN Dolby Digital mode Power: 470 W At 1kHz and total harmonic of 1% lFront:80 W/ Channel (3) lCenter:75 W/ Channel (6) 2006 Matsushita Electric Industrial Co., Ltd. All right

3、sreserved.Unauthorizedcopyingand distribution is a violation of law. SA-HT995EE Colour (S).Silver Type lSurround:80 W/ Channel (3) At 100Hz and total harmonic of 1% lSubwoofer:75 W/ Channel (6) lPreset Memory:FM 15 stations AM/MW 15 stations lFrequency Modulation (FM) Frequency Range:87.50-108.00MHz

4、 (50kHz step) Sensitivity:2.5V (IHF) S/N 26dB2.2V Antenna Terminals:75 (unbalanced) lAmplitude Modulation (AM/MW) Frequency Range:522-1629kHz (9kHz step) AM Sensitivity S/N 20dB at 999kHz: 560V/m lDigital audio input: Optical digital input:Optical terminal (1 system) Sampling frequency:32kHz, 44.1kH

5、z, 48kHz lPhone Jack: Terminal:Stereo 3.5 mm jack lMic Jack: DVD Home Theater Sound System Specifications ORDER NO.MD0607242CE RadioFans.CN 收音机爱 好者资料库 Sensitivity:0.7mV (1.2k) Terminal:Mono 6.3 mm jack (1 system) lFront M. Port: Sensitivity:100mV (15k) Terminal:Stereo 3.5 mm jack lDisc section Discs

6、 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 DVD-Video, DVD-VR (5)DVD-RW DVD-Video, DVD-VR, MP3(*2,6), JPEG(*2,3), MPEG4(*2,4),

7、 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 (including DivX6) with standard playback of DivX media files. Certified to the DivX Ho

8、me 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 groups. *3Exif Ver 2.1 JPEG Baseline files lPicture resolution: between 160 x 120 a

9、nd 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 to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/G.72

10、6 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 1M lDVD:CLASS 1 Audio output (DISC): Number of channels:5.1 ch (FL, FR, C, SL, SR,

11、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:95 dB Dynamic range: DVD (linear audio):95 dB CD-Audio:93 dB Total harmonic distortion: CD-Audio

12、: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) 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

13、 (1 system) Scart jack (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) RGB video output: R output level:0.7 Vp-p (75 ) G output leve

14、l:0.7 Vp-p (75 ) B output level:0.7 Vp-p (75 ) Terminal:Scart jack (1 system) HDMI AV output:19 pin type A connector, HDMI Ver.1.2a (EDID Ver.1.3) Power consumption in standby mode: approx 0.5W Note: 1.Specifications are subject to change without notice. Mass and dimensions are approximate. 2.Total

15、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-HT995EE RadioFans.CN 收音机爱 好者资料库 Refer to the original service manual for *1, *2, *3, *4. 3 SA-HT995EE RadioFans.CN 收音机爱 好者资

16、料库 1 Safety Precautions 6 1.1. GENERAL GUIDELINES 6 1.2. Before Repair and Adjustment 6 1.3. Protection Circuitry 6 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 7 3 Precaution of Laser Diode 8 4 About Lead Free Solder (PbF) 9 4.1. Service caution based o

17、n legal restrictions 9 5 Handling Precautions for Traverse Unit 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 But

18、tons Operations (SA-HT995) 14 7.3. Use of HDAVI Control 15 7.4. Using of Music Port 16 7.5. Disc Information 17 7.6. About DivX VOD Content 19 7.7. Audio & Video Connections 20 8 New Features 21 8.1. About HDMI 21 9 Self-Diagnosis and special mode setting 23 9.1. Service Mode Summary Table 23 9.2. S

19、ervice Mode Table 23 9.3. DVD Self Diagnostic Function-Error Code 28 9.4. Sales Demonstration Lock Function 30 9.5. Service Precautions 31 10 Assembling and Disassembling 32 10.1. Disassembly Flow Chart 33 10.2. Main Components and P.C.B. Locations 34 10.3. Disassembly of Top Cabinet 35 10.4. Disass

20、embly of the DVD Lid (When taking out disc manually) 35 10.5. Disassembly of Front Panel Assembly 36 10.6. Disassembly of Music Port P.C.B, Mic P.C.B., FL P.C.B. & Top Button P.C.B. 36 10.7. Disassembly of Scart P.C.B. 37 10.8. Disassembly of Karaoke P.C.B. 37 10.9. Disassembly of DVD Mechanism Unit

21、 37 10.10. Disassembly of Relay P.C.B. 38 10.11. Disassembly of Rear panel 38 10.12. Disassembly of HDMI Module P.C.B. 38 10.13. Disassembly of Main P.C.B., AC-Inlet P.C.B. & Tuner Extent P.C.B. 38 10.14. Disassembly of Digital Amp IC (IC5000) 39 10.15. Disassembly of Digital Amp IC (IC5400) 39 10.1

22、6. Disassembly of Regulator Diodes & Transistor 40 10.17. Disassembly of Switch Regulator IC & Diode (IC5701/D5702) 40 11 Service Position 42 11.1. Servicing position of the HDMI Module P.C.B. 42 11.2. Servicing position of the Main P.C.B. 42 12 Assembly and disassembly of Mechanism Unit 43 12.1. Di

23、sassembly Procedure 43 13 Measurements and Adjustments 49 13.1. Service Tools and Equipment 49 13.2. Important points in adjustment 49 13.3. Storing and handling of test discs 49 13.4. Optical adjustment 50 14 Abbreviations 51 15 Voltage and Waveform Chart 53 15.1. HDMI Module P.C.B. 53 15.2. Main/P

24、ower P.C.B. 55 15.3. FL P.C.B., Scart P.C.B., Mic P.C.B. & Tray Loading P.C.B. 57 15.4. Waveform Chart 58 16 Illustration of ICs, Transistors and Diodes 60 17 Wiring Connection Diagram 61 18 Block Diagram 63 19 Schematic Diagram Notes 71 20 Schematic Diagram 73 20.1. (A) Optical Pickup Unit & HDMI C

25、ircuit 73 20.2. (B) Main Circuit 80 20.3. (C) Power & AC-Inlet Circuit 85 20.4. (D) FL, Top Button, Tuner Extent, Music Port, Tray Loading, Mic, Relay, Scart & Karaoke Circuit 89 21 Printed Circuit Board 93 21.1. (A) HDMI Module P.C.B. 93 21.2. (B) Main/Power P.C.B. 94 CONTENTS Page Page 4 SA-HT995E

26、E 21.3. (C) Tuner Extent, AC-Inlet, FL, Music Port, Tray Loading & Top button P.C.B. 95 21.4. (D) Mic, Relay, Scart & Karaoke P.C.B. 96 22 Basic Troubleshooting Guide 97 22.1. Basic Troubleshooting Guide for Traverse Unit (HDMI Module P.C.B) 97 22.2. Basic Troubleshooting Guide for HDMI AV output 98

27、 23 Overall Block (HT995) 99 23.1. HT995 DVD Unit Block 100 23.2. HT995 Block (Analog Signal : DVD 5.1ch Play Back Mode) 101 23.3. HT995 Block (Analog Signal : 2ch Analog Input Mode) 102 23.4. HT995 Power Supply Block 103 23.5. HT995 Power Block (SMPS) 104 24 Terminal Function of ICs 105 24.1. IC201

28、8 (C2CBYY000294): IC System Control 105 25 Exploded Views 106 25.1. Cabinet Parts Location 106 25.2. Packaging 108 26 Replacement Parts List 109 26.1. Component Parts List 110 5 SA-HT995EE 1 Safety Precautions 1.1. GENERAL GUIDELINES 1. When servicing, observe the original lead dress. If a short cir

29、cuit 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

30、 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 each exposed metallic cabinet part on the

31、 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. Figure 1 1.1.2. LEAKAGE CURRENT HOT CHEC

32、K (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 ground such as a water pipe, as shown in Fig

33、ure 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

34、 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 possibility of a shock hazard, and the equipment

35、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 DIRECTLY (with a screwdriver blade, for ins

36、tance), 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 900 mA. 1.3. Protection Circuitry The protection circuitry may have opera

37、ted 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 wires are “shorted”, or if speaker syste

38、ms with an impedance less than the indicated rated impedance of the amplifier are used. 6 SA-HT995EE 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 after one minute. Note: When the prot

39、ection 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 easily by static electricity. Such componen

40、ts 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 of component damage caused by electro stat

41、ic 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 strap, which should be removed for potenti

42、al 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 assembly. 3. Use only a grounded-tip solder

43、ing 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-propelled chemicals. These can generate electrica

44、l 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 conductive foam, aluminum foil or comparable con

45、ductive 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 to the chassis or circuit, and observe al

46、l 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 electricity (ESD) sufficient to damage an ES d

47、evice). 7 SA-HT995EE 3 Precaution of Laser Diode CAUTION : This product utilizers 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 power from pick up : 100W/VDE Laser radiatio

48、n 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 not look at the focus lens using optical

49、instruments. 4. Recommend not to look at pick up lens for a long time. 8 SA-HT995EE 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 considering the globally environmental conservation. The normal solder is th