JVC-DXJ35-cs-sm 维修电路原理图.pdf

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1、SERVICE MANUALCOPYRIGHT 2007 Victor Company of Japan, LimitedNo.MB6202007/7COMPACT COMPONENT SYSTEMMB62020077 SERVICE MANUALDX-J35EE, DX-J35UX,DX-J35UG, DX-J35UN, DX-J20EE, DX-J20UW,DX-J10EECOPYRIGHT 2007 Victor Company of Japan, LimitedLead free solder used in the board (material : Sn-Ag-Cu, meltin

2、g point : 219 Centigrade)Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)TABLE OF CONTENTS1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-62SPECIFIC SER

3、VICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-93DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-104ADJUSTMENT . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-385TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40SUPER

5、VIDEOCA-DXJ35SUPER VIDEOCA-DXJ10 SP-DXJ10SP-DXJ20W SP-DXJ20FSP-DXJ20FSP-DXJ10CA-DXJ20SP-DXJ35FSP-DXJ35FSP-DXJ35CSP-DXJ35SSP-DXJ35SRadioFans.CN 收音机爱 好者资料库1-2 (No.MB620)SPECIFICATIONDX-J35EEDesign and specifications are subject to change without notice.Amplifier sectionOutput PowerFRONT SPEAKERS100 W

6、per channel min. RMS driven into 6 at 1 kHz with nomore than 10% total harmonic distortion.SURROUND SPEAKERS50 W per channel min. RMS driven into 6 at 1 kHz with nomore than 10% total harmonic distortion.CENTER SPEAKER50 W min. RMS driven into 6 at 1 kHz with no more than 10%total harmonic distortio

7、n.Audio outputSUBWOOFER OUTDigital inputUSB memoryAudio input sensitivity/Im-pedance (Measured at 1 kHz with taperecording signal 300 mV)AUX400 mV/47 k MIC1/23.0 mV/50 k VIDEO OUTColor systemNTSC/NTSC PROG/PAL/PAL PROGVIDEO (composite)1 V(p-p)/75 S-VIDEOY (luminance)1 V(p-p)/75 C(chrominance,burst):

8、 NTSC0.286 V(p-p)/75 C(chrominance,burst): PAL0.3 V(p-p)/75 COMPONENT (Interlace/Progressive)(Y)1 V(p-p)/75 (PB/PR)0.7 V(p-p)/75 Speaker Terminals6 - 16 (front speakers/subwoofers)Tuner sectionFM tuning range87.50 MHz - 108.00 MHzAM (MW) tuning range522 kHz - 1 629 kHzDisc/File player sectionPlayabl

9、e discDVD Video/DVD Audio/CD/VCD/SVCDCD-R/CD-RW (CD/VCD/SVCD/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)DVD-R/-RW (DVD-VR/DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)+R/+RW (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/AS

10、F/DivX format)Playable fileMP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX formatDynamic range80 dBHorizontal resolution500 linesWow and flutterImmeasurableUSB storage sectionUSB specificationCompatible with USB 2.0 Full-SpeedCompatible deviceMass storage classCompatible file systemFAT 16, FAT 32Bus power s

11、upply5 V/500 mACassette deck sectionFrequency responseNormal (type I)50 Hz - 14 000 HzWow and flutter0.15% (WRMS)GeneralPower requirementAC 230 V , 50 HzPower consumption205 W (at operation) / 21 W (on standby)Dimensions (W/H/D) (approx.)185 mm x 370 mm x 372 mmMass (approx.)9.5 kgRadioFans.CN 收音机爱

12、好者资料库(No.MB620)1-3DX-J35UX,UG,UNDesign and specifications are subject to change without notice.Amplifier sectionOutput PowerFRONT SPEAKERS100 W per channel min. RMS driven into 6 at 1 kHz with nomore than 10% total harmonic distortion.SURROUND SPEAKERS50 W per channel min. RMS driven into 6 at 1 kHz

13、 with nomore than 10% total harmonic distortion.CENTER SPEAKER50 W min. RMS driven into 6 at 1 kHz with no more than 10%total harmonic distortion.Audio outputSUBWOOFER OUTDigital inputUSB memoryAudio input sensitivity/Im-pedance (Measured at 1 kHz with taperecording signal 300 mV)AUX400 mV/47 k MIC1

14、/23.0 mV/50 k VIDEO OUTColor systemNTSC/NTSC PROG/PAL/PAL PROGVIDEO (composite)1 V(p-p)/75 S-VIDEOY (luminance)1 V(p-p)/75 C(chrominance,burst): NTSC0.286 V(p-p)/75 C(chrominance,burst): PAL0.3 V(p-p)/75 COMPONENT(Interlace/Progressive)(Y)1 V(p-p)/75 (PB/PR)0.7 V(p-p)/75 Speaker Terminals6 - 16 (fro

15、nt speakers/subwoofers)Tuner sectionFM tuning range87.50 MHz - 108.00 MHzAM (MW) tuning range531 kHz - 1 710 kHz (at 9 kHz)530 kHz - 1 710 kHz (at 10 kHz)(For Saudi Arabia) 531 kHz - 1 602 kHz (at 9 kHz)(For Saudi Arabia) 530 kHz - 1 600 kHz (at 10 kHz)Disc/File player sectionRegion codesMiddle East

16、2South East Asia3Central and south America, Australia 4Playable discDVD Video/DVD Audio/CD/VCD/SVCDCD-R/CD-RW (CD/VCD/SVCD/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)DVD-R/-RW (DVD-VR/DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)+R/+RW (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/Di

17、vX format)DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)Playable fileMP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX formatDynamic range80 dBHorizontal resolution500 linesWow and flutterImmeasurableUSB storage sectionUSB specificationCompatible with USB 2.0 Full-SpeedCompatible deviceMas

18、s storage classCompatible file systemFAT 16, FAT 32Bus power supply5 V/500 mACassette deck sectionFrequency responseNormal (type I)50 Hz - 14 000 HzWow and flutter0.15% (WRMS)GeneralPower requirementAC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V (adjustable with the voltage selector) 50 Hz / 6

19、0 Hz(For Australian model) AC 240 V , 50 HzPower consumption205 W (at operation) / 21 W (on standby)Dimensions (W/H/D) (approx.)185 mm x 370 mm x 372 mmMass (approx.)9.5 kg1-4 (No.MB620)DX-J20EE/DX-J10EEDesign and specifications are subject to change without notice.Amplifier sectionOutput PowerFRONT

20、 SPEAKERS100 W per channel min. RMS driven into 6 at 1 kHz with nomore than 10% total harmonic distortion.SUBWOOFERS100 W min. RMS driven into 6 at 63 Hz with no more than 10%total harmonic distortion.Digital outputOPTICAL DIGITAL OUTPUT-21 dBm to -15 dBm (660 nm 30 nm)Digital inputUSB MEMORYAudio i

21、nput sensitivity/Im-pedance (Measured at 1 kHz with tape re-cording signal 300 mV)AUX400 mV/47 k MIC1/23.0 mV/50 k VIDEO OUT Color systemNTSC/PALVIDEO (composite)1 V(p-p)/75 S-VIDEOY (luminance)1 V(p-p)/75 C(chrominance,burst): NTSC0.286 V(p-p)/75 C(chrominance,burst): PAL0.3 V(p-p)/75 Speaker Termi

22、nals6 - 16 (front speakers/subwoofers)Tuner sectionFM tuning range87.50 MHz - 108.00 MHzAM (MW) tuning range522 kHz - 1 629 kHzDisc/File player sectionPlayable discDVD Video/CD/VCD/SVCDCD-R/CD-RW (MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)DVD-R/-RW (DVD-VR/DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG

23、-2/ASF/DivX format)+R/+RW (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)Playable fileMP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX formatDynamic range80 dBHorizontal resolution500 linesWow and flutterImmeasurableUSB storage sect

24、ionUSB specificationCompatible with USB 2.0 Full SpeedCompatible deviceMass storage classCompatible file systemFAT 16, FAT 32Bus power supply5 V/500 mACassette deck sectionFrequency responseNormal (type I)50 Hz - 14 000 HzWow and flutter0.15% (WRMS)GeneralPower requirementAC 230 V , 50 HzPower consu

25、mptionCA-DXJ1095 W (at operation) / 15 W (on standby)CA-DXJ20140 W (at operation) / 16 W (on standby)Dimensions (W/H/D) (approx.)185 mm x 370 mm x 372 mmMass (approx.)CA-DXJ108.9 kgCA-DXJ209.3 kg(No.MB620)1-5DX-J20UWDesign and specifications are subject to change without notice.Amplifier sectionOutp

26、ut PowerFRONT SPEAKERS100 W per channel min. RMS driven into 6 at 1 kHz with nomore than 10% total harmonic distortion.SUBWOOFERS100 W min. RMS driven into 6 at 63 Hz with no more than10% total harmonic distortion.Digital outputOPTICAL DIGITAL OUTPUT-21 dBm to -15 dBm (660 nm 30 nm)Digital inputUSB

27、MEMORYAudio input sensitivity/Im-pedance (Measured at 1 kHz with taperecording signal 300 mV)AUX400 mV/47 k MIC1/23.0 mV/50 k VIDEO OUT Color systemNTSC/PALVIDEO (composite)1 V(p-p)/75 S-VIDEOY (luminance)1 V(p-p)/75 C(chrominance,burst): NTSC0.286 V(p-p)/75 C(chrominance,burst): PAL0.3 V(p-p)/75 Sp

28、eaker Terminals6 - 16 (front speakers/subwoofers)Tuner sectionFM tuning range87.50 MHz - 108.00 MHzAM (MW) tuning range531 kHz - 1 710 kHz (at 9 kHz)530 kHz - 1 710 kHz (at 10 kHz)(For Saudi Arabia) 531 kHz - 1 602 kHz (at 9 kHz)(For Saudi Arabia) 530 kHz - 1 600 kHz (at 10 kHz)Disc/File player sect

29、ionRegion codesMiddle East2South East Asia3Central and South America, Australia4Playable discDVD Video/CD/VCD/SVCDCD-R/CD-RW (MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)DVD-R/-RW (DVD-VR/DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)+R/+RW (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF

30、/DivX format)DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)Playable fileMP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX formatDynamic range80 dBHorizontal resolution500 linesWow and flutterImmeasurableUSB storage sectionUSB specificationCompatible with USB 2.0 Full SpeedCompatible device

31、Mass storage classCompatible file systemFAT 16, FAT 32Bus power supply5 V/500 mACassette deck sectionFrequency responseNormal (type I)50 Hz - 14 000 HzWow and flutter0.15% (WRMS)GeneralPower requirementAC 110 V / AC 127 V / AC 220 V /AC 230 V - AC 240 V (adjustable with the voltage selector) 50 Hz /

32、 60 Hz(For Australia) AC 240 V , 50 HzPower consumption140 W (at operation) / 16 W (on standby)Dimensions (W/H/D) (approx.)185 mm x 370 mm x 372 mmMass (approx.)9.3 kg1-6 (No.MB620)SECTION 1PRECAUTION1.1Safety Precautions(1) This design of this product contains special hardware andmany circuits and

33、components specially for safety purpos-es. For continued protection, no changes should be madeto the original design unless authorized in writing by themanufacturer. Replacement parts must be identical tothose used in the original circuits. Services should be per-formed by qualified personnel only.(

34、2) Alterations of the design or circuitry of the product shouldnot be made. Any design alterations of the product shouldnot be made. Any design alterations or additions will voidthe manufacturers warranty and will further relieve themanufacture of responsibility for personal injury or propertydamage

35、 resulting therefrom.(3) Many electrical and mechanical parts in the products havespecial safety-related characteristics. These characteris-tics are often not evident from visual inspection nor can theprotection afforded by them necessarily be obtained by us-ing replacement components rated for high

36、er voltage, watt-age, etc. Replacement parts which have these specialsafety characteristics are identified in the Parts List of Ser-vice Manual. Electrical components having such featuresare identified by shading on the schematics and by ( ) onthe Parts List in the Service Manual. The use of a subst

37、itutereplacement which does not have the same safety charac-teristics as the recommended replacement parts shown inthe Parts List of Service Manual may create shock, fire, orother hazards.(4) The leads in the products are routed and dressed with ties,clamps, tubings, barriers and the like to be sepa

38、rated fromlive parts, high temperature parts, moving parts and/orsharp edges for the prevention of electric shock and firehazard. When service is required, the original lead routingand dress should be observed, and it should be confirmedthat they have been returned to normal, after reassem-bling.(5)

39、 Leakage shock hazard testingAfter reassembling the product, always perform an isola-tion check on the exposed metal parts of the product (an-tenna terminals, knobs, metal cabinet, screw heads,headphone jack, control shafts, etc.) to be sure the productis safe to operate without danger of electrical

40、 shock.Do notuse a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using aLeakage Current Tester, measure the leakage currentfrom each exposed metal parts of the cabinet, particular-ly any exposed metal part having a return path to thechassis, to a kn

41、own good earth ground. Any leakage cur-rent must not exceed 0.5mA AC (r.m.s.). Alternate check methodPlug the AC line cord directly into the AC outlet. Use anAC voltmeter having, 1,000 per volt or more sensitivityin the following manner. Connect a 1,500 10W resistorparalleled by a 0.15F AC-type capa

42、citor between an ex-posed metal part and a known good earth ground.Measure the AC voltage across the resistor with the ACvoltmeter. Move the resistor connection to each exposed metalpart, particularly any exposed metal part having a returnpath to the chassis, and measure the AC voltage acrossthe res

43、istor. Now, reverse the plug in the AC outlet andrepeat each measurement. Voltage measured any mustnot exceed 0.75 V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). 1.2Warning(1) This equipment has been designed and manufactured tomeet international safety standards.(2) It is the legal responsib

44、ility of the repairer to ensure thatthese safety standards are maintained.(3) Repairs must be made in accordance with the relevantsafety standards.(4) It is essential that safety critical components are replacedby approved parts.(5) If mains voltage selector is provided, check setting for localvolta

45、ge.1.3CautionBurrs formed during molding may be left over on some partsof the chassis. Therefore, pay attention to such burrs in the case of pre-forming repair of this system.1.4Critical parts for safetyIn regard with component parts appearing on the silk-screenprinted side (parts side) of the PWB d

46、iagrams, the parts that areprinted over with black such as the resistor ( ), diode ( )and ICP ( ) or identified by the mark nearby are criticalfor safety. When replacing them, be sure to use the parts of thesame type and rating as specified by the manufacturer. (This regulation dose not Except the J

47、 and C version)Good earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE(No.MB620)1-71.5Preventing static electricityElectrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. i

48、s discharged, can destroy the laserdiode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.1.5.1 Grounding to prevent damage by static electricityStatic electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.

49、 Be careful to use proper grounding in the area where repairs are being performed. (1) Ground the workbenchGround the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing thetraverse unit (optical pickup) on it.(2) Ground yourselfUse an anti-st

50、atic wrist strap to release any static electricity built up in your body. (3) Handling the optical pickup In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement opticalpickup are shorted. After replacement, return the shorted parts to