JVC-NXF3-cs-sm 维修电路原理图.pdf

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1、SERVICE MANUALCOPYRIGHT 2008 Victor Company of Japan, LimitedNo.MB6622008/9COMPACT COMPONENT SYSTEMMB66220089 SERVICE MANUALNX-F3B, NX-F3E, NX-F3EN, NX-F3EV, NX-F3A, NX-F3EE, NX-F3US, NX-F3UB, NX-F3UW, NX-F3UX, NX-F3UG, NX-F3UA COPYRIGHT 2008 Victor Company of Japan, LimitedLead free solder used in

2、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 CONTENTS1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . . . . . 1-62SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-93DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . . . . . . . . 1-104ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-205TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、. . . . . . . . . . . . . . 1-25CA-NXF3SP-NXF3WSP-NXF3FSP-NXF3FRadioFans.CN 收音机爱 好者资料库1-2 (No.MB662)SPECIFICATIONFor EuropeMain unitSpeakerTunerFM frequency 87.50 MHz - 108.00 MHzAM frequency 522 kHz - 1 629 kHzTerminal (front of the main unit)Impedance 16 - 1 kTerminal (rear of the main unit)Left/r

6、ight speakers Output power 200 W (50 W x 4) at 3 (1 kHz/10 % THD)Impedance 3 - 16 Subwoofer Output power 150 W at 6 100 Hz/10 % THD)Impedance 6 - 16 Optical digital input terminal-23 dBm to -15 dBmOptical digital output terminal-23 dBm to -15 dBmComponent video output terminalsY: 1.0 Vp-p, 75 termin

7、atedPB: 0.7 Vp-p, 75 terminatedPR: 0.7 Vp-p, 75 terminatedComposite video output terminal1.0 Vp-p, 75 terminatedAudio input terminals500 mV/47 kUSB(Compatible with USB 2.0 Full-Speed)Compatible device USB mass storage class deviceCompatible file system FAT16, FAT32Output power DC 5 V = 500 mAHDMIOut

8、put power DC 5 V = 55 mAGeneralPower source AC 230 V50 HzPower consumption (in operation) 90 WPower consumption (on standby) 0.8 WDimensions (W x H x D) including projecting parts 300 mm x 95 mm x 295 mmMass 3.4 kgType 1-way bass reflex type Magnetically shielded typeSpeaker driver Front ch 5.5 cm c

9、oneSurround ch 5.5 cm conePower handling capacity Front ch 50WSurround ch 50WImpedance 3 Frequency range 80 Hz - 20 kHzSound pressure level 77 dB/WmDimensions (W x H x D)including projection parts 88 m x 184 mm x 125 mmMass (1 speaker) 1.2 kg RadioFans.CN 收音机爱 好者资料库(No.MB662)1-3SubwooferDesigns and

10、specifications are subject to change without notice.NX-F3A/UBMain unit Type Bass reflex typeSpeaker driver 16 cm conePower handling capacity 150 WImpedance 6 Frequency range 30 Hz - 200 HzSound pressure level 76 dB/WmDimensions (W x H x D) 300 mm x 301 mm x 305 mmMass 8.2 kgTunerFM frequency 87.50 M

11、Hz - 108.00 MHzAM frequency 531 kHz - 1 710 kHz (9 kHz spacing)530 kHz - 1 710 kHz (10 kHz spacing)Terminal (front of the main unit)USB digital input terminal x 1Audio output headphone terminal x 1Impedance 16 - 1 kTerminal (rear of the main unit)Audio output speaker terminals x 1Left/Right speakers

12、 Output power 200 W (50 W x 4) at 3 (1 kHz/10 % THD)Impedance 3 - 16 Subwoofer Output power 150 W at 6 (100 Hz/10 % THD)Impedance 6 - 16 Optical digital input terminal x 1-23 dBm to -15 dBmOptical digital output terminal x 1-23 dBm to -15 dBmComponent video output terminals x 1Y 1.0 Vp-p, 75 termina

13、tedPB 0.7 Vp-p, 75 terminatedPR 0.7 Vp-p, 75 terminatedComposite video output terminal x 11.0 Vp-p, 75 terminatedAudio input terminals x 1500 mV/47 kHDMI monitor output terminal x 1FM antenna terminal x 1AM antenna terminal x 1GeneralPower source (Australia) AC 240 V, 50 HzPower source (Hong Kong) A

14、C 220 V, 50 HzPower consumption (in operation) 90 WPower consumption (on standby) 0.8 WDimensions (W x H x D) including projecting parts 300 mm x 95 mm x 295 mmMass 3.4 kg1-4 (No.MB662)Speaker (SP-NXF3F)Subwoofer (SP-NXF3W)Designs and specifications are subject to change without notice.For asiaMain

15、unit USB(Compatible with USB 2.0 Full-Speed)Compatible device USB mass storage class deviceCompatible file system FAT16, FAT32Output power DC 5 V=500 mAHDMIOutput power DC 5 V=55 mAType 1-way bass reflex type Magnetically shielded typeSpeaker driver Front ch 5.5 cm coneSurround ch 5.5 cm conePower h

16、andling capacity Front ch 50WSurround ch 50WImpedance 3 Frequency range 80 Hz - 20 kHzSound pressure level 77 dB/WmDimensions (W x H x D) including projection parts 88 mm x 184 mm x 125 mmMass (1 speaker) 1.2 kgType Bass reflex typeSpeaker driver 16 cm conePower handling capacity 150 WImpedance 6 Fr

17、equency range 30 Hz - 200 HzSound pressure level 76 dB/WmDimensions (W x H x D) 300 mm x 301 mm x 305 mmMass 8.2 kgTunerFM frequency 87.50 MHz - 108.00 MHzAM frequency (Middle Eastern countries and South Africa) 531 kHz - 1 602 kHz (9 kHz spacing)530 kHz - 1 600 kHz (10 kHz spacing)AM frequency (oth

18、er countries/areas) 531 kHz - 1 710 kHz (9 kHz spacing)530 kHz - 1 710 kHz (10 kHz spacing)Terminal (front of the main unit)Microphone input terminal x 2 3.0 mV/12 kUSB digital input terminal x 1Audio output headphone terminal x 1 Impedance16 - 1 kTerminal (rear of the main unit)Audio output speaker

19、terminals x 1Left/Right speakers Output power 200 W (50 W x 4) at 3 (1 kHz/10 % THD)Impedance 3 - 16 Subwoofer Output power 150 W at 6 (100 Hz/10 % THD)Impedance 6 - 16 Optical digital input terminal x 1-23 dBm to -15 dBmOptical digital output terminal x 1-23 dBm to -15 dBm(No.MB662)1-5Speaker (SP-N

20、XF3F)Subwoofer (SP-NXF3W)Designs and specifications are subject to change without notice.Component video output terminals x 1Y 1.0 Vp-p, 75 terminatedPB 0.7 Vp-p, 75 terminatedPR 0.7 Vp-p, 75 terminatedComposite video output terminal x 11.0 Vp-p, 75 terminatedAudio input terminals x 1500 mV/47 kHDMI

21、 monitor output terminal x 1FM antenna terminal x 1AM antenna terminal x 1GeneralPower source (Thailand) AC 220 V, 50 HzPower source (other countries/areas) AC 110 - 127/220 -240 V,50/60 HzPower consumption (in operation) 90 WPower consumption (on standby) 0.8 WDimensions (W x H x D) including proje

22、cting parts 300 mm x 95 mm x 295 mmMass 3.4 kgUSB (Compatible with USB 2.0 Full-Speed)Compatible device USB mass storage class deviceCompatible file system FAT16, FAT32Output power DC 5 V=500 mAHDMIOutput power DC 5 V=55 mAType 1-way bass reflex type Magnetically shielded typeSpeaker driver Front ch

23、 5.5 cm coneSurround ch 5.5 cm conePower handling capacity Front ch 50WSurround ch 50WImpedance 3 Frequency range 80 Hz - 20 kHzSound pressure level 77 dB/WmDimensions (W x H x D) including projection parts 88 mm x 184 mm x 125 mmMass (1 speaker) 1.2 kgType Bass reflex typeSpeaker driver 16 cm coneP

24、ower handling capacity 150 WImpedance 6 Frequency range 30 Hz - 200 HzSound pressure level 76 dB/WmDimensions (W x H x D) 300 mm x 301 mm x 305 mmMass 8.2 kg1-6 (No.MB662)SECTION 1PRECAUTION1.1Safety Precautions(1) This design of this product contains special hardware andmany circuits and components

25、 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.(2) Alterat

26、ions 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 resulting

27、 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 higher voltage

28、, 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 substituterepla

29、cement 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 separated from

30、live 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) Leakage s

31、hock 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 shock.Do

32、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 known good e

33、arth 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 capacitor betw

34、een 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 resistor. Now

35、, 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 responsibility of t

36、he 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 localvoltage.1.3Caut

37、ionBurrs 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 diagrams, t

38、he 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 and C ver

39、sion)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.MB662)1-71.5Preventing static electricityElectrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharg

40、ed, 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. Be carefu

41、l 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-static wrist

42、 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 their orig

43、inal 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 easilydestroy the laser diode. 1.6Handling the traverse unit (optical pickup)(1) Do not subject the traverse unit (optical pickup) to strong

44、 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 thereplacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to

45、take too long atime 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 laser power. Do not turn it.1.7Attention when traverse unit is decomposed*Please

46、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 wireis disconnected without applying solder, the pickup may be destroyed by static electricity.) In the assembl

47、y, be sure to remove solder from the short land sections after connecting the card wire.1MConductive material(conductive sheet) or iron palate(caption)Anti-static wrist strapSolder short land section1-8 (No.MB662)1.8Important for laser products1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible

48、 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 : Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid d

49、irect 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 safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches.5.

50、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 radiation exposure. REPRODUCTION AND POSITION OF LABELS and PRINT!Please use enough caution not to