Jvc-NXF-3-Service-Manual电路原理图.pdf

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1、SERVICE MANUALCOPYRIGHT 2008 Victor Company of Japan, LimitedNo.MB6622008/9COMPACT COMPONENT SYSTEMMB66220089SERVICE 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 t

2、he 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 CONTENTS1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

5、 . . . . . . . . . . . . . . . . 1-25CA-NXF3SP-NXF3WSP-NXF3F SP-NXF3F1-2 (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/right speakers Out

6、put 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 terminals Y: 1.0 Vp-p, 75 terminatedPB: 0.7 Vp

7、-p, 75 terminatedPR: 0.7 Vp-p, 75 terminatedComposite video output terminal 1.0 Vp-p, 75 terminatedAudio input terminals 500 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 mAHDMIOutput power DC

8、 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 coneSurround

9、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 (No.MB662)1-3SubwooferDesigns and specifications are subject to chang

10、e 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 MHz - 108.00 MHzAM frequency 531 kHz

11、 - 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 Output power 200 W (50 W x 4) at 3

12、 (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 1 Y 1.0 Vp-p, 75 terminatedPB 0.7 Vp-p, 75 terminatedPR

13、0.7 Vp-p, 75 terminatedComposite video output terminal x 1 1.0 Vp-p, 75 terminatedAudio input terminals x 1 500 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) AC 220 V, 50 HzPower consumptio

14、n (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 unit USB(Compatible with USB 2

15、.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 handling capacity Front ch 50WS

16、urround 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 Frequency range 30 Hz - 200 HzSo

17、und 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 (other countries/areas) 531 kHz -

18、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 Impedance 16 - 1 kTerminal (rear of the main unit)Audio output speakerterminals x 1Left/Right speak

19、ers 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-NXF3F)Subwoofer (SP-NXF3W)De

20、signs and specifications are subject to change without notice.Component video output terminals x 1 Y 1.0 Vp-p, 75 terminatedPB 0.7 Vp-p, 75 terminatedPR 0.7 Vp-p, 75 terminatedComposite video output terminal x 1 1.0 Vp-p, 75 terminatedAudio input terminals x 1 500 mV/47 kHDMI monitor output terminal

21、 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 projecting parts 300 mm x 95

22、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 5.5 cm coneSurround ch

23、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 conePower handling capacity 1

24、50 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 1PRECAUTION1.1 Safety Precautions(1) This design of this product contains special hardware andmany circuits and components specially for safety p

25、urpos-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) Alterations of the design or c

26、ircuitry 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 therefrom.(3) Many ele

27、ctrical 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, watt-age, etc. Replac

28、ement 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 substitutereplacement which does not h

29、ave 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 fromlive parts, high temper

30、ature 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 shock hazard testingAfte

31、r 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 notuse a line isolation

32、 transformer during this check. Plug the AC line cord directly into the AC outlet. Using a“Leakage 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 earth ground. Any leak

33、age 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 between an ex-posed metal

34、 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, reverse the plug in

35、 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.). 1.2 Warning(1) This equipment has been designed and manufactured tomeet international safety standards.(2) It is the legal responsibility of the repairer to ensur

36、e 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.1.3 CautionBurrs formed dur

37、ing 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.1.4 Critical parts for safetyIn regard with component parts appearing on the silk-screenprinted side (parts side) of the PWB diagrams, the parts that arep

38、rinted 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 version)Good eart

39、h groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE(No.MB662)1-71.5 Preventing static electricityElectrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destr

40、oy 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 careful to use prop

41、er 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 strap to rel

42、ease 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 original conditio

43、n. (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. 1.6 Handling the traverse unit (optical pickup)(1) Do not subject the traverse unit (optical pickup) to strong shocks, as

44、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 take too lon

45、g 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.1.7 Attention when traverse unit is decomposed*Please refer to “D

46、isassembly 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 assembly, be sur

47、e 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)1.8 Important for laser products1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or

48、invisible class II laser radiationwhen open. Do not stare into beam.(Others) Visible and/or invisible class 1M laser radiationwhen open. Do not view directly with optical instruments. 3.CAUTION : Visible and/or invisible laser radiation whenopen and inter lock failed or defeated. Avoid directexposur

49、e 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.CAUTION : If safety switches malfunction, the laser is ableto function. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified