Panasonic-SAVK725DEE-cs-sm 电路图 维修手册.pdf

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1、AMPLIFIER SECTION RMS Output Power: Dolby Digital Mode Main 70 W per channel (6 ), 1 kHz, 10% THD Surround Ch 55 W per channel (6 ), 1 kHz, 10% THD Center Ch 70 W per channel (6 ), 1 kHz, 10% THD Total RMS Dolby Digital mode power 320 W FM/AM TUNER, TERMINALS SECTION Preset stationFM 15 stations AM

2、15 stations Frequency Modulation (FM) Frequency range87.50 - 108.00 MHz (50 kHz step) Sensitivity2.5 V (IHF) S/N 26 dB2.2 V Antenna terminals75 (unbalanced) Amplitude Modulation (AM) Frequency range522 - 1629 kHz (9 kHz step) AM Sensitivity S/N 20 dB at 999 kHz 560 V/m Audio performance (Amplifier)

3、Input sensitivity/Input impedance Aux250 mV, 20 k 2005 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-VK725DEE Colour (S). Silver Type Phone jack TerminalStereo, 3.5 mm jack Mic jack Sensitivity0.7 mV, 600 TerminalMono, 6.3 mm

4、 jack (2 system) CASSETTE DECK SECTION TypeAuto-Reverse Track system4-Track, 2 Channel Head Record/PlaybackSolid permalloy head ErasureDouble gap ferrite head MotorDC servo motor Recording SystemAC Bias 100 kHz Erasing SystemAC Erase 100 kHz Tape Speed4.8 cm/s Overall frequency response (+3, -6 dB)

5、at DECK OUT Normal35 Hz - 14 kHz S/N Ratio50 dB (A weighted) Wow and Flutter0.18 % (WRMS) Fast Forward and Rewind TimeApprox. 120 seconds with C-60 cassette tape DISC SECTION Disc played 8 cm or 12 cm (1) DVD (DVD-Video, DVD-Audio, DivX* 6,*7) (2) DVD-RAM (DVD-VR, JPEG * 4,* 7, MPEG4* 5,*7,DivX* 6,*

6、7) DVD Stereo System Specifications ORDER NO. MD0507277C3 RadioFans.CN 收音机爱 好者资料库 (3) DVD-R (DVD-Video, DivX* 6,*7) (4) DVD-RW (DVD-Video, DVD-VR, DivX* 6,*7) + R/RW (Video) (5) CD,CD-R/RW CD-DA, Video CD, SVCD * 1, MP3* 2,* 7, WMA* 3,* 7, JPEG* 4, * 7, MPEG4* 5,*7,DivX* 6,*7, HighMAT Level 2 (Audio

7、 and Image) * 1Conforming to IEC62107 * 2MPEG-1 Layer 3, MPEG-2 Layer 3 * 3Windows Media Audio Ver.9.0. L3 Not compatible with Multiple Bit Rate (MBR) * 4Exif Ver 2.1 JPEG Baseline files Picture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub sampling is 4:2:2 or 4:2:0) * 5MPEG4 data recor

8、ded with Panasonic SD multi cameras or DVD video recorders. Conforming to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/G.726 audio system * 6DivX 3.11, 4.x, 5.x GMC (Global Motion Compensation) is not supported * 7The total combined maximum number of recognizable audio

9、, picture and video contents and groups: 4000 audio ,picture and video contents and 400 groups. Pick up Wavelength CD785 nm DVD662 nm Audio output (Disc) Number of channels5.1 ch (FL,FR,C,SL,SR,SW) Audio performance (measurement at: Line out terminal) Frequency response CD-Audio4 Hz to 20 kHz (+1 dB

10、,-2 dB) VIDEO SECTION Video system Signal systemPAL625/50, PAL525/60, NTSC Composite video output Output level1 Vp-p (75 ) TerminalPin jack (1 system) S-video output Y output level1 Vp-p (75 ) C output level0.3 Vp-p (75 ) (PAL) 0.286 Vp-p (75 ) (NTSC) TerminalS terminal (1 system) Component video ou

11、tput NTSC: 525 (480)p/525 (480)i, PAL: 625 (576)p/625 (576)i Y output level1 Vp-p (75 ) PBoutput level0.7 Vp-p (75 ) PRoutput level0.7 Vp-p (75 ) Terminal Pin jack (Y: green, PB: blue, PR: red) (1 system) GENERAL Power supply AC 110 to 127V/220 to 240 V, 50/60Hz Power consumption300 W Power consumpt

12、ion in standby mode: 0.8 W (approximate) Dimensions (W x H x D)250 x 330 x 348 mm Mass8.8 kg Operating temperature range+5C to +35C Operating humidity range5% to 90% RH (no condensation) SYSTEM SC-VK725D (EE-S)Music System: SA-VK725D (EE-S) Front Speakers: SB-VK72 (GC-S) Satelite Speakers: SB-PT72 (

13、EE-S) Notes: 1. Specifications are subject to change without notice. Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer. 2 SA-VK725DEE RadioFans.CN 收音机爱 好者资料库 1 Before Repair and Adjustment 4 2 Protection Circuitry 4 3 Safety Precautions 4

14、3.1. General Guidelines 4 4 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 6 5 Handling the Lead-free Solder 6 5.1. About lead free solder (PbF) 6 6 Precaution of Laser Diode 7 7 Cautions to be taken when handling Optical Pickup 8 7.1. Handling Optical Picku

15、p 8 7.2. Replacing Precautions for Optical Pickup Unit 8 7.3. Grounding for Preventing Electrostatic Destruction 8 8 Accessories 9 9 Operation Procedures 10 10 Disc information 12 11 About HighMAT 14 11.1. What 痴 HighMAT? 14 11.2. Why take advantage of HighMAT? 14 11.3. Benefits of HighMAT? 15 12 Op

16、tical Pickup Self-Diagnosis and Replacement Procedure 18 12.1. Optical Pickup Breakdown diagnosis 18 13 Self-Diagnosis Function 19 13.1. Entering into Self-Diagnostic Mode 19 13.2. Automatic Displayed Error Codes 19 13.3. Memorized Error Codes 19 13.4. Service Mode Table 1 20 13.5. DVD/CD Self-Diagn

17、osis Error Code Description 20 13.6. Mode Table 2 20 13.7. CR16 Mechanism Ageing Mode 23 13.8. Operation Lock Function 23 13.9. Things to Do After Repair 24 14 Cautions To Be Taken During Servicing 24 14.1. Recovery after the dvd player is repaired 24 14.2. DVD Player Firmware Version Upgrade Proces

18、s 24 14.3. Firmware Version Upgrade Process by Using Disc and Recovery Process 24 14.4. Using Recovery Disc 25 14.5. Total Usage Time Display 25 14.6. After replacement of DVD Module 25 15 Disassembly and Assembly of Main Component 26 15.1. Disassembly steps 26 15.2. Disassembly flow chart 27 15.3.

19、Disassembly of Top Cabinet 28 15.4. Disassembly of Rear Panel 28 15.5. Disassembly of DVD Changer Unit 28 15.6. Disassembly of Main P.C.B. 30 15.7. Disassembly of Power Amp P.C.B. 30 15.8. Disassembly of Power P.C.B. 31 15.9. Disassembly of Transformer P.C.B. 32 15.10. Disassembly of Front Panel Uni

20、t 32 15.11. Disassembly for Mic P.C.B. Typically the melting point is 50 - 70F (30 - 40C) higher. Please use a high temperature soldering iron. In case of soldering iron with temperature control, please set it to 700 20F (370 10C). Pb free solder will tend to splash when heated too high (about 1100F

21、/600C). When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the soldering points with the Pb free solder until it melts enough. 6 SA-VK725DEE 6 Precaution of Laser Diode Caution : This product utilizes a laser diode with the unit

22、turned ON, invisible laser radiation is emitted from the pick up lens. Wavelength : 785 nm(CD)/662 nm(DVD) Maximum output radiation power from pick up : 100 W/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 radi

23、ation 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 instruments. 4. Recommend not to look at pick up lens for a long time. CAUTION! THIS PRODUCT UTILIZES A LASER. USE OF CONTR

24、OLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. n Use of Caution Labels 7 SA-VK725DEE 7 Cautions to be taken when handling Optical Pickup The laser diode used inside optical pickup could be destroyed due to static electric

25、ity as a potential difference is caused by electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destruction during repair. 7.1. Handling Optical Pickup 1. Do not impact on optical pickup as the unit structurally uses an extremely precise techn

26、ology. 2. Short-circuit the flexible cable of optical pickup remove from the circuit board using a short-circuit pin or clip in order to prevent laser diode from electrostatic destruction (Refer to Fig. 7.1 and Fig. 7.2) 3. Do not handle flexible cables forcibly as this may cause snapping. Handle th

27、e parts carefully (Refer to Fig. 7.1) 4. A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible board, cut the anti-static flexible cable. (Refer to Fig. 7.1) Fig. 7.1 7.2. Replacing Precautions for Optical Pickup Unit DVD/CD Optical Picku

28、p The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, before connecting. (Please remove solder, when the short l

29、and short-circuits.) 7.3. Grounding for Preventing Electrostatic Destruction 1. Human body grounding Use the anti-static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 7.2) 2. Work place grounding Place a conductive material (conductive sheet) or iron board

30、where optical pickup is placed. (Refer to Fig. 7.2) Note : Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes. Fig. 7.2 8 SA-VK725DEE 8 Accessories Remote control AC cord FM antenna AM antenna Video cable Mic 9 SA-VK725DEE 9 Operation

31、 Procedures 10 SA-VK725DEE 11 SA-VK725DEE 10 Disc information 12 SA-VK725DEE 13 SA-VK725DEE 11 About HighMAT 11.1. Whats HighMAT? Consumers worldwide are using PCs to create their own collections of music, photos and even video by burning them onto CDs. But how these collections can be experienced a

32、cross different devices can be confusing to navigate, time consuming to access for a DVD player, and be incomplete in terms of music information available to the customer. HighMAT offers a solution to this growing consumer problem. HighMAT dramatically improves the digital media experience on consum

33、er electronic devices by delivering a simple, standardized approach that allows consumers who have created personal collections of digital music, photography and video on their PC to: Create a HighMAT CD or DVD which can be easily played back on consumer electronics devices such as CD and DVD player

34、s, and car stereos. Move digital media files (using recordable media such as CD-R and CD-RW) between the PC and various playback devices such as CD and DVD players. A new standard for creating personal media on consumer electronic devices, HighMAT enable easier and more seamless interoperability bet

35、ween Windows PCs and devices designed for your living room, or the car. 11.2. Why take advantage of HighMAT? A Problem Defined:Today, when consumers create their own digital audio, video or photo collections on CD-R or other physical formats, there are numerous, inconsistent ways that devices read t

36、he data. For the consumer, the playback experience can be confusing: 14 SA-VK725DEE A Solution Created: HighMAT delivers a better digital media access experience by creating a standard approach for PCs to structure digital media on various physical formats and for playback devices to read the data.

37、11.3. Benefits of HighMAT? ConventionalHighMAT Even though DVD player is CD-R/RW compatible, the inconsistent ways that various DVD players can read the music or photos files often leads to a confusing and inconsistant playback experince. HighMATcompatibleproductsplaycontentbackwithconsistent interf

38、ace. This includes products which are JPEG compatible products without HighMAT support. 15 SA-VK725DEE 16 SA-VK725DEE HighMAT is now available for CD Burning and in Leading DVD PlayersHighMAT is a new technology that is now available in leading software and consumer electronic devices to dramaticall

39、y improve the digital media experience when you create homemade CDsHighMAT delivers a simple, standardized way for PC software and consumer electronics devices to talk to each other and work better together. When you create your homemade CDs with software that supports HighMAT CD burning, and then p

40、lay them back on a DVD player that supports HighMAT, you get better, easier navigation. You get folders you can access with a single click of your DVD players remote control. You can view important information about your music like full song names, artist titles, album names and genre. And you can g

41、et faster startup on your home entertainment device. To enjoy the benefits of HighMAT, all you need is software that supports HighMAT for CD burning of music or photos, as well as a home entertainment device like a DVD player that supports HighMAT for playback. Always look for the HighMAT logo on yo

42、ur software or home entertainment device to ensure it supports the HighMAT experience. 17 SA-VK725DEE 12 Optical Pickup Self-Diagnosis and Replacement Procedure 12.1. Optical Pickup Breakdown diagnosis This unit is equipped with the optical pickup self-diagnosis function and the tilt adjustment chec

43、k function. Follow the procedure described below during repair in order to perform self-diagnosis and tilt adjustment effectively. Especially when “NO DISC” is displayed, be sure to apply the self-diagnosis function before replacing with an optical pickup. Replacement of optical pickup generally req

44、uires when the present value of laser drive exceeds 45 (DVD) or 45 (CD). Note: Start diagnosis within three minutes after turning on the power (as diagnosis fails when the unit becomes warm). 18 SA-VK725DEE 13 Self-Diagnosis Function This unit is equipped with the self-diagnosis function, which disp

45、lays an error when it occurs, for use during servicing. 13.1. Entering into Self-Diagnostic Mode 13.2. Automatic Displayed Error Codes 13.2.1. Automatic Display Function For a power unit error, the code is automatically displayed. F61:Automatically displayed on the LCD of the player. 13.2.2. Re-Disp

46、lay For F61 Display When the code, F61 is displayed, the power is automatically turned off. The code, F61 is displayed for three seconds, and then the current time appears. To retrieve the code, turn on the power button so that the code F61 appears, however, is switched to time display after three s

47、econds, and the power is automatically turned off. For F76 Display The abnormalities is an output or the abnormalities in a power supply of POWER AMP IC. 13.2.3. Description of Error Code 13.2.3.1. F61 State, Condition When the power is turned on, the unit is automatically turned off. The power does

48、 not turn on. Cause, Troubleshooting Power circuit system failure and/or direct current flown to speaker terminal Identify the cause and replace with new parts. 13.3. Memorized Error Codes 13.3.1. Activating Self-Diagnosis Function and Displaying Method 1. Turn on the power. 2. Select DVD/CD functio

49、n. With no DVD/CD inserted in the player, pressand hold down the button for at least two seconds, and press the “0” button on the remote control for at least two seconds in order to display “DVD_F-”. 3. Press thebutton. If a memorized error is detected, the result of self diagnosis is displayed. (Ex.: T H15) 19 SA-VK725DEE If several errors are detected, press thebutton to display each. 13.3.2. Re-Display Press the power button to turn off the power, a