Panasonic-SAVK91DG-cs-sm2 电路图 维修手册.pdf

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1、n AMPLIFIER SECTION RMS Output Power : Dolby Digital Mode Front -High Ch 90 W per channel (6 ), 1 kHz, 10% THD Front -Low Ch 45 W per channel (12 ), 100 Hz, 10% THD Surround Ch 45 W per channel (6 ), 1 kHz, 10% THD Center Ch 100 W per channel (6 ), 1 kHz, 10% THD Subwoofer 95 W per channel (6 ), 100

2、 Hz, 10% THD Total RMS Dolby Digital mode power 650 W PMPO output power7300 W n FM/AM TUNER, TERMINALS SECTION Preset stationFM 15 stations AM/MW 15 stations Frequency Modulation (FM) Frequency range87.50 -108.00 MHz (50 kHz step) Sensitivity2.5V (IHF) S/N 26dB2.2V Antenna terminals75 (unbalanced) A

3、mplitude Modulation (AM/MW) Frequency range522 -1629 kHz (9 kHz step) 520 -1630 kHz (10 kHz step) AM sensitivity S/N 20 dB at 1000 kHz 560V/m 2004 Panasonic AVC Networks Singapore Pte. Ltd. (RCB Registration Number: 197701580H) All rightsreserved.Unauthorizedcopyingand distribution is a violation of

4、 law. SA-VK91DGCS SA-VK91DGCP Colour (S). Silver Type Audio performance (Amplifier) Input sensitivity/Input impedance Aux250 mV, 20 k Phone jack TerminalStereo, 3.5 mm jack Mic jack Sensitivity0.7 mV, 600 TerminalMono, 6.3 mm jack (2 system) n CASSETTE DECK SECTION TypeAuto Reverse Track system4 Tra

5、ck, 2 Channel Head Record/PlaybackSolid Permalloy Head ErasureDouble Gap Ferrite Head MotorDC Servo Motor Recording SystemAC Bias 100 kHz Erase SystemAC Erase 100 kHz Tape Speed4.8 cm/s Overall Frequency Response (+3, - 6 dB) at DECK OUT Normal (TYPE I)35 Hz -14 kHz S/N Ratio50 dB (A weighted) Wow a

6、nd Flutter0.18 % (WRMS) Fast Forward and Rewind TimeApprox. 120 seconds with C- 60 cassette tape n DISC SECTION Disc played 8 cm or 12 cm (1) DVD- RAM (DVD- VR compatible, JPEG formatted disc) (2) DVD- Audio DVD Stereo System Specifications ORDER NO. MD0407366C3 RadioFans.CN 收音机爱 好者资料库 (3) DVD- Vide

7、o (4) DVD- R (DVD- Video compatible) (5) CD- Audio (CD- DA) (6) Video CD (7) SVCD (Conforming to IEC62107) (8) CD- R/CD- RW (CD- DA, Video CD, SVCD, MP3, WMA, JPEG formatted disc) (9) MP3/WMA* Compatible compression rate: MP3: between 32 kbps and 320 kbps WMA: between 48 kbps and 192 kbps (10) JPEG*

8、 Exif Ver 2.1 JPEG Baseline files Picture resolution: between 320 x240 and 6144x4096 pixels (Sub sampling is 4:2:2 or 4:2:0) (11) HighMAT Level 2 (Audio and Image) The total combined maximum number of recognizable audio and picture contents and groups: 4000 audio and picture contents and 400 groups.

9、 Pick up Wavelength (DVD/CD)662 nm/785 nm Audio ouptut (Disc) Number of channels5.1 ch (FL, FR, C, SL, SR, SW) Audio performance (measurement at: Line out terminal) Frequency response CD- Audio4 Hz -20 kHz (+1, - 2 dB) n VIDEO SECTION Video system Signal systemPAL625/50, PAL525/60, NTSC Composite vi

10、deo 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 output (480P/480I) Y output level1 Vp- p (75 ) 1 Before Use 4 2 Before Repair and Adjustm

11、ent 4 3 Protection Circuitry 4 4 Safety Precautions 4 4.1. General Guidelines 4 PBoutput level0.7 Vp- p (75 ) PRoutput level0.7 Vp- p (75 ) Terminal Pin jack (Y: green, PB: blue, PR: red) (1 system) n GENERAL Power supply AC 110V/127V/220- 230V/240V, 50/60Hz Power consumption313 W Power consumption

12、in standby mode: 1 W Dimensions (WxHxD)250 x 330 x 372 mm Mass9.6 kg Operating temperature range+ 5C to + 35C Operating humidity range5% to 90% RH (no condensation) n SYSTEM SC- VK91D (GCS)Music Center: SF- VK91D (GCS) Front Speakers: SB- VK91D (GC) Center Speaker: SB- PC81A (GC) x 1 Surround Speake

13、rs: SB- PS81A (GC) x 2 Subwoofers: SB- WVK91 (GC) x 2 SC- VK91D (GCP)Music Center: SF- VK91D (GCP) Front Speakers: SB- VK91D (GC) Center Speaker: SB- PC81A (GC) x 1 Surround Speakers: SB- PS81A (GC) x 2 Subwoofers: SB- WVK91 (GC) x 2 SF- VK91D GCS- S consists of SA- VK91D GCS- S Typically the meltin

14、g 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/600C). When soldering or unsoldering, please completely remo

15、ve 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-VK91DGCS / SA-VK91DGCP 7 Cautions to be taken when handling Optical Pickup The laser diode used inside optical pickup could be destroyed due to static electri

16、city 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 tech

17、nology. 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

18、 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 7.2. Replacing Precautions for Optical Pickup Unit DVD/CD Optical

19、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 the short clip and be sure to check that the short land is open, before connecting. (Please remove solder, when the sh

20、ort land 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

21、board 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 7 SA-VK91DGCS / SA-VK91DGCP 8 Precaution of Laser Diode Caution : This product utilizes a laser diode with t

22、he unit turned ON, invisible laser radiation is emitted from the pick up lens. Wavelength : 662 nm(DVD)/785 nm(CD) 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, si

23、nce 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 at pick up lens for a long time. CAUTION! THIS PRODUCT UTILIZES A LASER. USE

24、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-VK91DGCS / SA-VK91DGCP 9 Accessories Remote control AC power supply cord FM indoor antenna AM indoor antenna Video cable AC Plug Adaptor

25、(For GCP only) 9 SA-VK91DGCS / SA-VK91DGCP 10 Operation Procedures 10 SA-VK91DGCS / SA-VK91DGCP 11 SA-VK91DGCS / SA-VK91DGCP 11 Disc information 12 SA-VK91DGCS / SA-VK91DGCP 13 SA-VK91DGCS / SA-VK91DGCP 12 About HighMAT 12.1. What is HighMAT? This word combines the abbreviations of Matsushita Electr

26、ic Industrial Co. Ltd. and High Performance Media Access Technology, and is a trademark of Microsoft Corporation. The products with the HighMAT logo shown below are made according to the HighMAT standard. HighMAT is a format that allows users to save digital contents such as photographs, audio, and

27、images on a CD. This gives consistency in the way of reading data when general consumer products (such as DVD players) and PCs are used, and thus, it is easy to operate for the user. 12.2. Why use HighMAT? Up to now, there was no harmonized standard from playing digital content stored in CD- ROM for

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

29、orded increased retrieved the contents became more difficult. Because display and operation methods were different depending on the equipment, the play order of the content on the same disc could change. 12.3. The advantages of using HighMAT Applying the HighMAT standard will solve the following pro

30、blems and will improve usability. It will create a common user interface for both PC and consumer products. 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 content will be created and it wil

31、l make it easier to retrieve data. 14 SA-VK91DGCS / SA-VK91DGCP You can also play digital content on the disc, which was created in accordance with the HighMAT format with a conventional CD- ROM player. 12.4. Outline of the HighMAT standard 1. Recording medium CD- R/CD- RW Supports ISO 9660 Level Ex

32、panded Joliet For multiple session 2. Support data format Level 1 player: WMA, MP3 (MPEG- 1 Audio Layer 3) Level 2 player: WMA, MP3 (MPEG- 1 Audio Layer 3), JPEG Level 3 player: WMA, MP3 (MPEG- 1 Audio Layer 3), JPEG, WMV, MPEG4 (optional) 3. Limitation of data format 15 SA-VK91DGCS / SA-VK91DGCP WM

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

34、450 Total number of still picture files: Maximum 999 Total number of animation files: Maximum 200 Total number of directories: Maximum 400 Length of a file name: Maximum 108 characters (Unicode) Total number of play lists: Maximum 200 Number of contents in the playlist: Maximum 900 5. Composition of

35、 HighMAT disc Menu: Classified for the navigation of the HighMAT digital contents. When menu selected, its submenu or the play list will be displayed. Play list: A list in which one or more digital contents are arranged in order Group: Sub- divided group of a play list. Digital Contents: Audio, stil

36、l picture, and animation data. 16 SA-VK91DGCS / SA-VK91DGCP 13 Procedure for repairing the set 17 SA-VK91DGCS / SA-VK91DGCP 13.1. Distinguish the problem How to distinguish the trouble 1. View mechanical part if visual damage occurred. Confirm the movement of mechanical parts assembly (tray assy, lo

37、ading 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. 13.1.1. Troubleshooting Guide Part 1 Checking PointsPossible FaultsPossible ReasonsCountermeasure AC Inlet Circuit/Voltage Selector Circ

38、uit 1. Failure to power- up the main unit. 2. Power On switch WrongselectionofAC power to main unit. Voltage selector is faulty. AC inlet JK500 is faulty. ACLinefilterL500is faulty. Power On switch broken. Replace of fuse if found faulty. Replace of voltage selector if found faulty. Replace of AC In

39、let if found faulty or damaged. Replace AC Line filter is found faulty or damaged. Replace Power On button switch if necessary. If conditions as mentioned above is in good condition. Check for wire connection. (W1/W2/W3/W4/W6/W7). If connectionisgood,pleaseproceedtocheckfor Transformer Circuit. 3.In

40、termittentPower supply to main unit. Check for connection. If condition 1 to 4 as mentioned above is in good condition.Checkforwireconnection. (W1/W2/W3/W4/W6/W7). If connection is good, please proceed to check for Transformer Circuit 18 SA-VK91DGCS / SA-VK91DGCP Checking PointsPossible FaultsPossib

41、le ReasonsCountermeasure Transformer Circuit1.Nopowersupply voltagetothePower Circuit from AC In. Transformernooutput voltage. PowerLinefilterrelay RL502. D950 open circuit. Replace of Transformer T501 if found faulty. Replace of Power Relay if found faulty. Speaker Circuit1. No supply voltage to Po

42、werSupplyCircuit fromTransformer Circuit. (+VccL/+VccH/- VccL/- VccH) Fuse F3/F4 blown. Rectifier Circuit problem. Replace fuse F3/F4 if found faulty. Replace D5832/D5831/D5846/D5847 if any is found to be faulty or damage. 1. No supply voltage to Main TOC is unreadable or invalid disc is inserted. D

43、isc Code F103Ilegal highlight positionDisc standard is possibly illegal when highlight is displayed. IIC Error F4FFForced initialization failure (Time out) F880Unsuitable task numberWhen a message arrives from not existing task F890A message is sent during AV task transmissionDuring transmission of

44、a message to AV task F891Unable to transmit a message to AV taskWhen transmission of a message to AV task starts F893DVD Module problemCheck for firmware version F894EEPROM failure F895Firmware compatibility problemCheck for firm version for Main QZZCWAT 19.1.1. Head Azimuth Adjustment (Deck 1/2) Ca

45、ution: Please replace both azimuth adjustment screw and springs simultaneously when readjusting the head azimuth. (shown in Fig. 2) Even if you wish to readjust the head azimuth without replacing the acrews and springs, a fine adjustment to the azimuth screw and spring. Please remove the screw- lock

46、ing bond left on the head base when replacing the azimuth screw. If you wish to readjust the head azimuth, be sure to adjust with adhering the cassette tape closely to the mechanism by pushing the center of cassette tape with your finger. (shown in Fig. 3) 1. Playback the azimuth adjustment portion

47、(8 kHz, - 20dB) of the test tape (QZZCFM) in the forward play mode. Vary the azimuth adjustment screw until the output of the R- CH (PB OUT- R) are maximized. 2. Perform the same adjustment in the reverse play mode. 3. After the adjustment, applyscrewlock to the azimuth adjusting screw. 19.1.2. Tape

48、 Speed Adjustment (Deck 1/2) 1. Set the tape edit button to “NORMAL” position. 2. Insert the test tape (QZZCWAT) to DECK 2 and playback (FWD side) the middle portion of it. 3. Adjust Motor VR (DECK 2) for the output value shown below. Adjustment target: 2940 3060 Hz (NORMAL speed) 4. After alignment

49、, assure that the output frequency of the DECK 1 FWD are within 60 Hz of the value of the output frequency of DECK 2 FWD. Fig. 1 19.1.3. Bias and Erase Voltage Check 1. Set the unit “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and the unit to “REC” mode (use “l REC/STOP” key). 3. Measure an