JVC-DXJ36-cs-sm维修电路原理图.pdf

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1、SERVICE MANUAL COPYRIGHT 2009 Victor Company of Japan, Limited No.MB666 2009/2 COMPACT COMPONENT SYSTEM MB66620092 SERVICE MANUAL DX-J36UN, DX-J36EE, DX-J36UX, DX-J36UG, DX-J36US, DX-J36UW, DX-J21UN, DX-J21J, DX-J21EE, DX-J21A, DX-J21UW, DX-J21UX,DX-J21UG, DX-J11UN, DX-J11EE, DX-J11UW, DX-J11UX, DX-

2、J11UG, DX-J11UH, DX-J11US COPYRIGHT 2009 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . .

3、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 3DISASSEMBLY . . . . . . . . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 5TROUBLESHOO

5、TING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31 SUPER VIDEO DX-J11 SP-DXJ11CA-DXJ11SP-DXJ11 DX-J21 SP-DXJ21W SP-DXJ21FCA-DXJ21SP-DXJ21F DX-J36 SP-DXJ36FSP-DXJ36F SP-DXJ36C CA-DXJ36 SP-DXJ36SSP-DXJ36S RadioFan

6、s.CN 收音机爱 好者资料库 1-2 (No.MB666) SPECIFICATION DX-J21/DX-J11 Design and specifications are subject to change without notice. Amplifier section Output Power FRONT SPEAKERS (DX-J21)120 W per channel min. RMS driven into 6 at 1 kHz with no more than 10% total harmonic distortion. (DX-J11)125 W per channe

7、l min. RMS driven into 6 at 1 kHz with no more than 10% total harmonic distortion. SUBWOOFERS (DX-J21)120 W min. RMS driven into 6 at 63 Hz with no more than 10% total harmonic distortion. Digital output OPTICAL DIGITAL OUTPUT -21 dBm to -15 dBm (660 nm 30 nm) Digital input USB MEMORY Audio input se

8、nsitivity/ImpedanceMeasured at 1 kHz with tape recording signal 300 mV AUX 400 mV/47 k MIC1/2 3.0 mV/50 k VIDEO OUT Color system NTSC/PAL VIDEO (composite) S-VIDEO Y (luminance)1 V(p-p)/75 C (chrominance, burst)1 V(p-p)/75 NTSC0.286 V(p-p)/75 PAL0.3 V(p-p)/75 Speaker Terminals 6 - 16 (front speakers

9、/subwoofers) Tuner section FM tuning range 87.50 MHz - 108.00 MHz AM (MW) tuning range 531 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) 530 kHz - 1 600 kHz (at 10 kHz) For Russia522 Khz - 1 629Khz Disc/File player section Region codesMidd

10、le East 2 South East Asia 3 Central and South America, Australia 4 Playable disc DVD Video/CD/VCD/SVCD/CD-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) DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX fo

11、rmat) Playable file MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format Dynamic range 80 dB Horizontal resolution 500 lines Wow and flutter Immeasurable USB storage section USB specification Compatible with USB 2.0 Full Speed Compatible device Mass storage class Compatible file system FAT 16, FAT 32 Bus

12、power supply 5 V/500 mA Cassette deck section Frequency response Normal (type I) 50 Hz - 14 000 Hz Wow and flutter 0.15% (WRMS) General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V AC 240 V (adjustable with the voltage selector) 50 Hz / 60 Hz For Australia AC 240 V , 50 Hz For RussiaA

13、C 230 V , 50 Hz Power consumption DX-J11UN95 W (at operation) / 15 W (on standby) DX-J21UN140 W (at operation) / 16 W (on standby Dimensions(W/H/D) (approx.) 185 mm x 370 mm x 372 mm Mass (approx.)DX-J11UN8.9 kg DX-J21UN9.3 kg RadioFans.CN 收音机爱 好者资料库 (No.MB666)1-3 DX-J36 Design and specifications ar

14、e subject to change without notice. Amplifier section Output Power FRONT SPEAKERS 125 W per channel min. RMS driven into 6 at 1 kHz with no more than 10% total harmonic distortion. SURROUND SPEAKERS 50 W per channel min. RMS driven into 6 at 1 kHz with no more than 10% total harmonic distortion. CEN

15、TER SPEAKER 50 W min. RMS driven into 6 at 1 kHz with no more than 10% total harmonic distortion. Audio output SUBWOOFER OUT Digital input USB memory Audio input sensitivity/ImpedanceMeasured at 1 kHz with tape recording signal 300 mV AUX 400 mV/47 k MIC1/2 3.0 mV/50 k VIDEO OUT Color system NTSC/NT

16、SC PROG/PAL/PAL PROG VIDEO (composite) S-VIDEO Y (luminance)1 V(p-p)/75 C (chrominance, burst)1 V(p-p)/75 NTSC0.286 V(p-p)/75 PAL0.3 V(p-p)/75 COMPONENT (Interlace/Progressive) (Y)1 V(p-p)/75 (PB/PR)0.7 V(p-p)/75 Speaker Terminals 6 - 16 (front/surround/center) Tuner section FM tuning range 87.50 MH

17、z - 108.00 MHz AM (MW) tuning range 531 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) 530 kHz - 1 600 kHz (at 10 kHz) For Russia522 kHz - 1 629 kHz Disc/File player section Region codes Middle East 2 South East Asia 3 Central and south Ame

18、rica, Australia 4 Playable disc DVD 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) DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format) Playable file MP3/WMA/

19、WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format Dynamic range 80 dB Horizontal resolution 500 lines Wow and flutter Immeasurable USB storage section USB specification Compatible with USB 2.0 Full-Speed Compatible device Mass storage class Compatible file system FAT 16, FAT 32 Bus power supply 5 V/500 mA Cass

20、ette deck section Frequency response Normal (type I) 50 Hz - 14 000 Hz Wow and flutter 0.15% (WRMS) General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V (adjustable with the voltage selector) 50 Hz / 60 Hz For Australian model AC 240 V , 50 Hz For RussiaAC 230 V , 50 Hz Pow

21、er consumption 205 W (at operation) / 21 W (on standby) Dimensions (W/H/D) (approx.) 185 mm x 370 mm x 372 mm Mass (approx.) 9.5 kg 1-4 (No.MB666) SECTION 1 PRECAUTION 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safet

22、y purpos- es. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the de

23、sign or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefro

24、m. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteris- tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, wa

25、tt- age, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Ser- vice Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute rep

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

27、ed from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassem- bling.

28、 (5) Leakage shock hazard testing After 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 product is safe to operate without danger of e

29、lectrical shock.Do not use a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using a Leakage Current Tester, measure the leakage current from each exposed metal parts of the cabinet, particular- ly any exposed metal part having a return path to the ch

30、assis, to a known good earth ground. Any leakage cur- rent must not exceed 0.5mA AC (r.m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a

31、 0.15F AC-type capacitor between an ex- posed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the

32、AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 1.2Warning (1) This equipment has been designed and manufactured to meet international safety standards

33、. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is p

34、rovided, check setting for local voltage. 1.3Caution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre- forming repair of this system. 1.4Critical parts for safety In regard with component parts appearing on the silk-

35、screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the man

36、ufacturer. (This regulation dose not Except the J and C version) Good earth ground Place this probe on each exposed metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity) 1500 10W 0.15 F AC TYPE (No.MB666)1-5 1.5Preventing static electricity Electrostatic discharge (ESD), which occur

37、s when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.5.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the

38、optical pickup (laser diode) in devices such as laser products. Be careful to use proper grounding in the area where repairs are being performed. (1) Ground the workbench Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the trave

39、rse unit (optical pickup) on it. (2) Ground yourself Use an anti-static 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 optical

40、 pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) Do not use a tester to check the condition of the laser diode in the optical pickup. The testers internal power source can easily destroy the laser diode. 1.6Handling the traverse unit

41、(optical pickup) (1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text

42、. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. (3) Handle the flexible cable carefully as it may break when subjected to strong force. (4) I t is not possible to adjust the semi-fixed resistor that adjusts the

43、 laser power. Do not turn it. 1.7Attention when traverse unit is decomposed *Please refer to Disassembly method in the text for the pickup unit. Apply solder to the short land sections before the card wire is disconnected from the connecto on the servo board. (If the card wire is disconnected withou

44、t applying solder, the pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land sections after connecting the card wire. 1M Conductive material (conductive sheet) or iron palate (caption) Anti-static wrist strap Solder short land section 1-6 (No.M

45、B666) 1.8Important for laser products 1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam. (Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments. 3.CAUTION :

46、 Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the

47、safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches. 5.CAUTION : If safety switches malfunction, the laser is able to function. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in hazardous ra

48、diation exposure. REPRODUCTION AND POSITION OF LABELS and PRINT ! Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. WARNING LABEL and PRINT (No.MB666)1-7 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIF

49、IC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY 3.1Main body (Used figure are DX-J11) 3.1.1Removing the Metal cover (See Fig.1, 2) (1) Remove the four screws A attaching the both side of the Metal Cover. (See Fig.1) (2) Remove the two screws B attaching the Rear cover. (See Fig.2) (3) Remove the seven screws C attaching the Metal cover. (See Fig.2) Fig.1 Fig.2 A C C C C B C C C 1-8 (No.MB666) 3.1.2Removing the DVD mechanism (See Fig.3 to 5) (1) Disconnect the card wire from Micom board connected to connector CN701 and CN801 of the Fro