Panasonic-SAVK72DG-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 PMPO output power4000 W ? ? FM/AM TUNER, TERMINALS SECTION

2、Preset stationFM 15 stations AM 15 stations Frequency Modulation (FM) Frequency range87.50 - 108.00 MHz (50 kHz step) Sensitivity2.5 V (IHF) S/N 26dB2.2 V Antenna terminals75 (unbalanced) Amplitude Modulation (AM) Frequency range522 - 1629 kHz (9 kHz step) 520 - 1630 kHz (10 kHz step) AM Sensitivity

3、 S/N 20dB at 999 kHz 560 V/m Audio performance (Amplifier) 2005 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-VK72DGCS SA-VK72DGS Colour (S). Silver Type Input sensitivity/Input impedance Aux250 mV, 20 k Phone jack TerminalSt

4、ereo, 3.5 mm jack Mic jack Sensitivity0.7 mV, 600 TerminalMono, 6.3 mm 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 SystemA

5、C Erase 100 kHz Tape Speed4.8 cm/s Overall frequency response (+3, -6 dB) 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 DVD Stereo System Spe

6、cifications ORDER NO. MD0506272C3 RadioFans.CN 收音机爱 好者资料库 (1) DVD (DVD-Video, DVD-Audio) (2) DVD-RAM (DVD-VR, JPEG* 4,*5) (3) DVD-R (DVD-Video) (4) DVD-RW (DVD-Video) + R/RW (Video) (5) 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) * 1Con

7、forming to IEC62107 * 2MPEG-1 Layer 3, MPEG-2 Layer 3 * 3Windows Media Audio Ver.9.0. Class 2A 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) * 5The total combined maximum n

8、umber of recognizable audio and picture contents and groups: 4000 audio and picture 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

9、20 kHz (+1 dB,-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) Compo

10、nent video output 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 P

11、ower consumption 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-VK72D (GCS)Music System: SA-VK72D (GCS) Front Speakers: SB-VK72 (GC) Satelite Speakers: SB

12、-PT72 (GC) SC-VK72D (GS)Music System: SA-VK72D (GS) Front Speakers: SB-VK72 (GC) Satelite Speakers: SB-PT72 (GC) 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-VK72DGC

13、S / SA-VK72DGS RadioFans.CN 收音机爱 好者资料库 1 Safety precautions for AC Cord (For GS only) 5 2 Before Use (Caution) 5 3 Before Repair and Adjustment 5 4 Protection Circuitry 5 5 Safety Precautions 6 5.1. General Guidelines 6 6 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (E

14、S) Devices 7 7 Handling the Lead-free Solder 7 7.1. About lead free solder (PbF) 7 8 Precaution of Laser Diode 8 9 Cautions to be taken when handling Optical Pickup 9 9.1. Handling Optical Pickup 9 9.2. Replacing Precautions for Optical Pickup Unit 9 9.3. Grounding for Preventing Electrostatic Destr

15、uction 9 10 Accessories 10 11 Operation Procedures 11 12 Disc information 13 13 About HighMAT 15 13.1. What 痴 HighMAT? 15 13.2. Why take advantage of HighMAT? 15 13.3. Benefits of HighMAT? 16 14 Optical Pickup Self-Diagnosis and Replacement Procedure 19 14.1. Optical Pickup Breakdown diagnosis 19 15

16、 Self-Diagnosis Function 20 15.1. Entering into Self-Diagnostic Mode 20 15.2. Automatic Displayed Error Codes 20 15.3. Memorized Error Codes 20 15.4. Service Mode Table 1 21 15.5. DVD/CD Self-Diagnosis Error Code Description 21 15.6. Mode Table 2 21 15.7. CR16 Mechanism Ageing Mode 24 15.8. Operatio

17、n Lock Function 24 15.9. Things to Do After Repair 25 16 Cautions To Be Taken During Servicing 25 16.1. Recovery after the dvd player is repaired 25 16.2. DVD Player Firmware Version Upgrade Process 25 16.3. Firmware Version Upgrade Process by Using Disc and Recovery Process 25 16.4. Using Recovery

18、Disc 26 16.5. Total Usage Time Display 26 16.6. After replacement of DVD Module 26 17 Disassembly and Assembly of Main Component 27 17.1. Disassembly steps 27 17.2. Disassembly flow chart 28 17.3. Disassembly of Top Cabinet 29 17.4. Disassembly of Rear Panel 29 17.5. Disassembly of DVD Changer Unit

19、29 17.6. Disassembly of Main P.C.B. 31 17.7. Disassembly of Power Amp P.C.B. 31 17.8. Disassembly of Power P.C.B. 32 17.9. Disassembly of Transformer 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 tempera

20、ture control, please set it to 700 20F (370 10C). Pb free solder will tend to splash when heated too high (about 1100F/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 i

21、t melts enough. 7 SA-VK72DGCS / SA-VK72DGS 8 Precaution of Laser Diode Caution : This product utilizes a laser diode with the unit 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

22、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 not look at the focus lens using

23、optical instruments. 4. Recommend not to look at pick up lens for a long time. CAUTION! THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. n Use of Caution Labels 8 SA-VK72DGCS / SA-

24、VK72DGS 9 Cautions to be taken when handling Optical Pickup The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic des

25、truction during repair. 9.1. Handling Optical Pickup 1. Do not impact on optical pickup as the unit structurally uses an extremely precise technology. 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

26、 from electrostatic destruction (Refer to Fig. 9.1 and Fig. 9.2) 3. Do not handle flexible cables forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 9.1) 4. A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible

27、 board, cut the anti-static flexible cable. (Refer to Fig. 9.1) Fig. 9.1 9.2. Replacing Precautions for Optical Pickup Unit DVD/CD Optical Pickup The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic discharge damage preve

28、ntion. Please remove the short clip and be sure to check that the short land is open, before connecting. (Please remove solder, when the short land short-circuits.) 9.3. Grounding for Preventing Electrostatic Destruction 1. Human body grounding Use the anti-static wrist strap to discharge the static

29、 electricity accumulated in your body. (Refer to Fig. 9.2) 2. Work place grounding Place a conductive material (conductive sheet) or iron board where optical pickup is placed. (Refer to Fig. 9.2) Note : Keep your clothes away from optical pickup as wrist strap does not release the static electricity

30、 charged in clothes. Fig. 9.2 9 SA-VK72DGCS / SA-VK72DGS 10 Accessories Remote control AC cord AC cord (For GS only) FM antenna AM antenna Video cable 10 SA-VK72DGCS / SA-VK72DGS 11 Operation Procedures 11 SA-VK72DGCS / SA-VK72DGS 12 SA-VK72DGCS / SA-VK72DGS 12 Disc information 13 SA-VK72DGCS / SA-V

31、K72DGS 14 SA-VK72DGCS / SA-VK72DGS 13 About HighMAT 13.1. 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 across different devices can be confusing to navigate, tim

32、e 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 consumer electronic devices by delivering a simple, standardize

33、d 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 players, and car stereos. Move digital media files (using recor

34、dable 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 between Windows PCs and devices designed for your living roo

35、m, or the car. 13.2. 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 the data. For the consumer, the playback experience can be

36、 confusing: 15 SA-VK72DGCS / SA-VK72DGS 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. 13.3. Benefits of HighMAT? ConventionalHighM

37、AT 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 interface. This includes products which are JPEG c

38、ompatible products without HighMAT support. 16 SA-VK72DGCS / SA-VK72DGS 17 SA-VK72DGCS / SA-VK72DGS 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 dramatically improve the digi

39、tal 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 play them back on a

40、 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 get faster startup

41、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 your software or hom

42、e entertainment device to ensure it supports the HighMAT experience. 18 SA-VK72DGCS / SA-VK72DGS 14 Optical Pickup Self-Diagnosis and Replacement Procedure 14.1. Optical Pickup Breakdown diagnosis This unit is equipped with the optical pickup self-diagnosis function and the tilt adjustment check fun

43、ction. 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 requires

44、 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). 19 SA-VK72DGCS / SA-VK72DGS 15 Self-Diagnosis Function This unit is equipped with the self-diagnosis function, wh

45、ich displays an error when it occurs, for use during servicing. 15.1. Entering into Self-Diagnostic Mode 15.2. Automatic Displayed Error Codes 15.2.1. Automatic Display Function For a power unit error, the code is automatically displayed. F61:Automatically displayed on the LCD of the player. 15.2.2.

46、 Re-Display 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

47、 three seconds, 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. 15.2.3. Description of Error Code 15.2.3.1. F61 State, Condition When the power is turned on, the unit is automatically turned off. The po

48、wer does 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. 15.3. Memorized Error Codes 15.3.1. Activating Self-Diagnosis Function and Displaying Method 1. Turn on the power. 2. Select DVD/CD

49、 function. 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) 20 SA-VK72DGCS / SA-VK72DGS If several errors are detected, press thebutton to display each. 15.3.2. Re-Display Press the power button to