Panasonic-SAVK90-cs-sm 电路图 维修手册.pdf

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1、Table Of Contents COVER 1 Before Use 2 Before Repair and Adjustment 3 Protection Circuitry 4 Safety Precautions 4.1 General Guidelines 4.1.1 Leakage Current Cold Check 4.1.2 Leakage Current Hot Check (See Figure 1) 5 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) De

2、vices 6 Handling the Lead-free Solder 6.1 About lead free solder (PbF) 7 Cautions to be taken when handling Optical Pickup 7.1 Handling Optical Pickup 7.2 Replacing Precautions for Optical Pickup Unit 7.3 Grounding for Preventing Electrostatic Destruction 8 Precaution of Laser Diode 9 Accessories 10

3、 Operation Procedures 11 Disc information 12 About HighMAT 12.1 What is HighMAT? 12.2 Why use HighMAT? 12.3 The advantages of using HighMAT 12.4 Outline of the HighMAT standard 13 Procedure for repairing the set 13.1 Distinguish the trouble cause 13.2 Diagnosis of Optical Pick-up Unit 14 Optical Pic

4、kup Self- Diagnosis and Replacement Procedure Service Manual TOP NEXT ORDER NO. MD0308338C3 DVD Stereo System G SA-VK90DGCP Colour (S). Silver Type Specifications AMPLIFIER SECTION RMS Output power both channel driven: 10% Total Harmonic Distortion 1 kHz Front-HI CH80 W per channel (6) 100 Hz Front-

5、LOW CH60 W (12) 1 kHz Surround CH40 W per channel (8) 1 kHz Center CH100 W (8) 100 Hz Subwoofer CH100 W per channel (6) Total RMS Dolby Digital Mode Power 600 W PMPO Output Power7000 W Input sensitivity/Input Impedance AUX250 mV, 13.3 k MIC0.7 mV, 680 FM TUNER SECTION RadioFans.CN 收音机爱 好者资料库 14.1 Se

6、lf-diagnosis 14.2 Cautions to Be Taken During Replacement of Optical Pickup and Spindle Motor 14.2.1 Cautions to be taken during replacement of optical pickup 15 Self-Diagnosis Function 15.1 Automatic Displayed Error Codes 15.1.1 Automatic Display Function 15.1.2 Re-Display 15.1.3 Description of Err

7、or Code 15.2 Memorized Error Codes 15.2.1 Activating Self- Diagnosis Function and Displaying Method 15.2.2 Re-Display 15.3 Mode Table 1 15.4 DVD CD Self- Diagnosis Error Code Description 15.5 Error Codes Stored During No Play 15.6 Mode Table 2 15.7 Tray Lock Function 15.7.1 Setting 15.8 Things to Do

8、 After Repair 16 Cautions To Be Taken During Servicing 16.1 Recovery after the dvd player is repaired 16.2 DVD Player Firmware Version Upgrade Process 16.3 Firmware Version Upgrade Process by Using Disc and Recovery Process 16.3.1 Self-Diagnosis Function 16.4 Using Recovery Disc 16.4.1 Recovery Proc

9、ess 16.4.2 Version Upgrade Process 16.5 Total Usage Time Frequency range87.50 - 108.00 MHz (50 kHz steps) Sensitivity2.5V (IHF) S/N 26 dB2.2V Antenna terminals75 (unbalanced) Preset station15 AM TUNER SECTION Frequency range522 - 1629 kHz (9 kHz steps) 520 - 1630 kHz (10 kHz steps) AM sensitivityy S

10、/N 20 dB at 1000 kHz 560V/m Preset station15 CASSETTE DECK SECTION Track system4 track, 2 channel Heads 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 (1 7/8 ips) Overall frequen

11、cy response (+3 dB, -6 dB at DECK OUT) Normal (TYPE I)35 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 DVD-Video/Audio 8 cm/12 cm, single/double-sided, single/double-layer DVD-RAM/R (DVD-V

12、ideo formatted discs) CD-DA/VCD/MP3/WMA8 cm/12 cm, CD-R/RW SVCD (Conforming to IEC62107) HighMAT Level 2 (Audio and Image) JPEG-Exif Ver 2.1 JPEG Baseline files Video Signal systemNTSC Output level Composite video1 Vp-p (75) S-Video Y1 Vp-p (75) S-Video C0.286 Vp-p (75)(NTSC) Component video1 Vp-p (

13、Y)(75) 0.7 Vp-p (PB/CB PR/CR)(75) Audio Sampling frequency CD44.1 kHz MP332 kHz, 44.1 kHz, 48 kHz RadioFans.CN 收音机爱 好者资料库 Display 17 Operation Checks and Component Replacement Procedures 17.1 Disassembly of Top Cabinet 17.2 Disassembly for the DVD changer ass y 17.2.1 Disassembly for the Top Ornamen

14、t Unit 17.2.2 Disassembly for DVD changer unit 17.3 Checking for the changer unit operational condition 17.3.1 Initial setting of CD 17.3.2 Checking for the DVD Module (1) P.C.B. 17.3.3 Checking for Panel P. C.B., Deck P.C.B. and LED P. C.B. 17.3.4 Replacement of the Power Amplifier IC 17.4 Main Com

15、ponent Replacement Procedures 17.4.1 Replacement of the Traverse Deck 17.5 Replacement for the disc tray 17.6 Disassembly and reassembly for mechanism base drive unit 17.7 Replacement for the motor ass y 17.8 Replacement for the pinch roller ass y and head block 17.9 Replacement for the CD motor ass

16、 y, capstan belt A, capstan belt B and winding belt 17.10 Replacement for the CD motor ass y, capstan belt A, capstan belt B and winding belt 17.11 Replacement for the cassette lid ass y 17.12 Measure for tape trouble 18 Measurements and DVD-Video48 kHz, 96 kHz DVD-Audio192 kHz MP3 Birate32- 320 kbp

17、s Decoding16/20/24 bit linear Number of channels 5.1 CH (FL, FR, SL, SR, C, SW) Frequency response20 Hz- 20 kHz (+1, -2 dB) Pick up Beam SourceSemiconductor Laser Wavelength DVD658 nm CD/VCD780 nm Wow and flutterLess than possible measurement data Digital filter8 fs D/A converterDelta sigma DAC GENE

18、RAL Power supplyAC 110/127/220-230/240 V, 50/60Hz Power consumption313 W Power consumption in standby mode: 0.9 W Dimwnsions (W x H x D)250 x 330 x 370 mm Mass10 kg SYSTEM SC-VK90D(GCP)Music Center: SA-VK90D(GCPS) Front Speaker: SB-VK90(GC-S) x 2 Subwoofer: SB-WVK80(GC-S) x 2 Speaker System: SB-PT81

19、0(GC-s) x 1Center Speaker: SB-PC810(GC-S) x 1 Surround Speaker: SB-PS810(GC-S) x 2 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. 2003 Panasonic AVC Networks Singapore Pte.

20、 Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. RadioFans.CN 收音机爱 好者资料库 Adjustments 18.1 Cassette Deck Section 18.1.1 Head Azimuth Adjustment (Deck 1 2) 18.1.2 Tape Speed Adjustment (Deck 1 2) 18.1.3 Bias and Erase Voltage Check 18.1.4 Bias Frequency Adjustmen

21、t (Deck 1 2) 18.2 Tuner Section 18.2.1 AM-IF Alignment 18.2.2 AM RF Adjustment 18.3 Alignment Points 18.3.1 Cassette Deck Section 18.3.2 Adjustment Point 19 Illustration of ICs, Transistors and Diodes 20 Terminal Function of IC 20.1 IC600 (C2BBHF000070 ) System Microprocessor 21 Block Diagram 22 Sch

22、ematic Diagram 22.1 (A) DVD Module (1) Circuit 22.2 (B) DVD Module (2) Circuit 22.3 (C) Main Circuit 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). G Pb fr

23、ee solder will tend to splash when heated too high (about 1100F/600C). G 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. TOP PREVIOUS NEXT 7 Cautions to be ta

24、ken when handling Optical Pickup TOP PREVIOUS NEXT 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 destructiond

25、uring repair. 7.1 Handling Optical Pickup 7.2 Replacing Precautions for Optical Pickup Unit 7.3 Grounding for Preventing Electrostatic Destruction TOP PREVIOUS NEXT 7.1 Handling Optical Pickup TOP PREVIOUS NEXT 1. Do not impact on optical pickup as the unit structurally uses an extremely precise tec

26、hnology. 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

27、 the 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 TOP PREVIOUS NEXT 7.2 Replacing Precautions for Optical Pickup Unit

28、TOP PREVIOUS NEXT 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 prevention. Please remove a short clip and be sure to check that the short land is open, beforeconnecting. (Ple

29、ase remove solder, when the short land short- circuits.) TOP PREVIOUS NEXT 7.3 Grounding for Preventing Electrostatic Destruction TOP PREVIOUS NEXT 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

30、grounding Place a conductive material (conductive sheet) or ironboard 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 TOP PREVIOUS NEXT 8 Precaution of Laser Diod

31、e TOP PREVIOUS NEXT Caution : This product utilizes a laser diode with the unit turned ON, invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm(VCD/CD)/658 nm(DVD) Maximum output radiation power from pick up : 100 W/VDE Laser radiation from pick up unit is safety level, bu

32、t 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 instruments. 4. Recommend not to look a

33、t pick up lens for a long time. ACHTUNG : Dieses Produkt enthlt eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit abgestrahlt. Wellenlnge : 780 nm(VDC/CD)/658 nm(DVD) Maximale Strahlungsleistungder Lasereinheit :100W/VDE Die Strahlung an der Lasereinhei

34、t ist ungefhrlich, wenn folgende Punkte beachtet werden: 1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefhrlich ist. 2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen. 3. Nicht mit optischen Instrumenten in die Fokussierlinse blicken.

35、 4. Nicht ber lngere Zeit in die Fokussierlinse blicken. ADVARSEL : I dette a apparat anvendes laser. 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. Use of Caution Label

36、s TOP PREVIOUS NEXT 9 Accessories TOP PREVIOUS NEXT Remote Control AC power supply cord FM indoor antenna AM indoor antenna Video cable Power plug adaptor TOP PREVIOUS NEXT 10 Operation Procedures TOP PREVIOUS NEXT TOP PREVIOUS NEXT 11 Disc information TOP PREVIOUS NEXT TOP PREVIOUS NEXT 12 About Hi

37、ghMAT TOP PREVIOUS NEXT 12.1 What is HighMAT? 12.2 Why use HighMAT? 12.3 The advantages of using HighMAT 12.4 Outline of the HighMAT standard TOP PREVIOUS NEXT 12.1 What is HighMAT? TOP PREVIOUS NEXT This word combines the abbreviations of Matsushita Electric Industrial Co. Ltd. and High Performance

38、 Media Access Technology, and is a trademark of Microsoft Corporation. The products with the HighMAT logo shown below are made according to the HighMATstandard. HighMAT is a format that allows users to save digital contents such as photographs, audio, and images on a CD. This gives consistency in th

39、e way of reading data when general consumer products (such as DVD players) and PCs are used, and thus, itis easy to operate for the user. TOP PREVIOUS NEXT 12.2 Why use HighMAT? TOP PREVIOUS NEXT Up to now, there was no harmonized standard from playing digital content stored in CD-ROM formats (inclu

40、ding CD-R) on consumer products like DVD players.Therefore, we used to have problems such as follow: G There was no common play list or attached information on contents, which is called metadata. G The data compression method differed according to the equipment. G As the number of CD-ROMs recorded i

41、ncreased retrieved the contents became more difficult. G Because display and operation methods were different depending on the equipment, the play order of the content on the same disc could change. TOP PREVIOUS NEXT 12.3 The advantages of using HighMAT TOP PREVIOUS NEXT Applying the HighMAT standar

42、d will solve the following problems and will improve usability. G It will create a common user interface for both PC and consumer products. G Regardless of the types of consumer products, such as DVD players, portable CD players, car stereos, and micro computers, a consistent way to pay for digital

43、content will be created and it will make it easier to retrieve data. G You can also play digital content on the disc, which was created in accordance with the HighMAT format with a conventional CD-ROM player. TOP PREVIOUS NEXT 12.4 Outline of the HighMAT standard TOP PREVIOUS NEXT 1. Recording mediu

44、m H CD-R/CD-RW H Supports ISO 9660 Level Expanded Joliet H For multiple session 2. Support data format H Level 1 player: WMA, MP3 (MPEG-1 Audio Layer 3) H Level 2 player: WMA, MP3 (MPEG-1 Audio Layer 3), JPEG H Level 3 player: WMA, MP3 (MPEG-1 Audio Layer 3), JPEG, WMV, MPEG4 (optional) 3. Limitatio

45、n of data format H WMA, MP3 (MPEG-1 Audio Layer 3) 64 kbps - 160.999 kbps, 44.1 KHz, stereo, fixed bit rate/ variable bit rate. H WMA, V2 and above, excluding Lossless/Voice/Pro H JPEG: Max 6M pixel, Maximum file size: 3 MB 4. Limitations regarding the number of files on the media, etc. H Total numb

46、er of audio files: Maximum 450 H Total number of still picture files: Maximum 999 H Total number of animation files: Maximum 200 H Total number of directories: Maximum 400 H Length of a file name: Maximum 108 characters (Unicode) H Total number of play lists: Maximum 200 H Number of contents in the

47、playlist: Maximum 900 5. Composition of HighMAT disc H Menu: Classified for the navigation of the HighMAT digital contents. When menu selected, its submenu or the play list will be displayed. H Play list: A list in which one or more digital contents are arranged in order H Group: Sub-divided group o

48、f a play list. H Digital Contents: Audio, still picture, and animation data. TOP PREVIOUS NEXT 13 Procedure for repairing the set TOP PREVIOUS NEXT 13.1 Distinguish the trouble cause 13.2 Diagnosis of Optical Pick-up Unit TOP PREVIOUS NEXT 13.1 Distinguish the trouble cause TOP PREVIOUS NEXT How to

49、distinguish the trouble 1. View mechanical part if visual damage occurred. Confirm the movement of mechanical parts assembly (tray assy, loading mechanism assy, etc.). 2. Diagnose if Optical Pickup Unit is faulty (refer to diagnosis of Optical Pickup Unit). 3. If mechanism and OPU are OK, it is P.C.B. Cause 1 Possible fault 1. AC Inlet Circuit/Voltage Selector Circuit Fuse Blow (F1,F2), Power Transformer Pr