JVC-NXF3-cs-sm维修电路原理图.pdf

《JVC-NXF3-cs-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《JVC-NXF3-cs-sm维修电路原理图.pdf（75页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL COPYRIGHT 2008 Victor Company of Japan, Limited No.MB662 2008/9 COMPACT COMPONENT SYSTEM MB66220089 SERVICE MANUAL NX-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, Limited Lead free solder u

2、sed 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、. . . . . . . . . . . . . . . . 1-6 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . . . . . . . . . . . . . . 1-10 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、. . . . . . . . . . . . . . . . . . . . . 1-25 CA-NXF3 SP-NXF3W SP-NXF3FSP-NXF3F RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB662) SPECIFICATION For Europe Main unit Speaker Tuner FM frequency 87.50 MHz - 108.00 MHz AM frequency 522 kHz - 1 629 kHz Terminal (front of the main unit) Impedance 16 - 1 k Terminal

6、(rear of the main unit) Left/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-23 dBm to -15 dBm Optical digital output terminal-23 dBm to -15 dBm Component video outp

7、ut terminalsY: 1.0 Vp-p, 75 terminated PB: 0.7 Vp-p, 75 terminated PR: 0.7 Vp-p, 75 terminated Composite video output terminal1.0 Vp-p, 75 terminated Audio input terminals500 mV/47 k USB(Compatible with USB 2.0 Full-Speed) Compatible device USB mass storage class device Compatible file system FAT16,

8、 FAT32 Output power DC 5 V = 500 mA HDMI Output power DC 5 V = 55 mA General Power source AC 230 V50 Hz Power consumption (in operation) 90 W Power consumption (on standby) 0.8 W Dimensions (W x H x D) including projecting parts 300 mm x 95 mm x 295 mm Mass 3.4 kg Type 1-way bass reflex type Magneti

9、cally shielded type Speaker driver Front ch 5.5 cm cone Surround ch 5.5 cm cone Power handling capacity Front ch 50W Surround ch 50W Impedance 3 Frequency range 80 Hz - 20 kHz Sound pressure level 77 dB/Wm Dimensions (W x H x D)including projection parts 88 m x 184 mm x 125 mm Mass (1 speaker) 1.2 k

10、g RadioFans.CN 收音机爱 好者资料库 (No.MB662)1-3 Subwoofer Designs and specifications are subject to change without notice. NX-F3A/UB Main unit Type Bass reflex type Speaker driver 16 cm cone Power handling capacity 150 W Impedance 6 Frequency range 30 Hz - 200 Hz Sound pressure level 76 dB/Wm Dimensions (W

11、x H x D) 300 mm x 301 mm x 305 mm Mass 8.2 kg Tuner FM frequency 87.50 MHz - 108.00 MHz AM 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 1 Audio output headphone terminal x 1 Impedance 16 - 1 k Termin

12、al (rear of the main unit) Audio output speaker terminals x 1 Left/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 dBm Optical digital output term

13、inal x 1-23 dBm to -15 dBm Component video output terminals x 1Y 1.0 Vp-p, 75 terminated PB 0.7 Vp-p, 75 terminated PR 0.7 Vp-p, 75 terminated Composite video output terminal x 11.0 Vp-p, 75 terminated Audio input terminals x 1500 mV/47 k HDMI monitor output terminal x 1 FM antenna terminal x 1 AM a

14、ntenna terminal x 1 General Power source (Australia) AC 240 V, 50 Hz Power source (Hong Kong) AC 220 V, 50 Hz Power consumption (in operation) 90 W Power consumption (on standby) 0.8 W Dimensions (W x H x D) including projecting parts 300 mm x 95 mm x 295 mm Mass 3.4 kg 1-4 (No.MB662) Speaker (SP-NX

15、F3F) Subwoofer (SP-NXF3W) Designs and specifications are subject to change without notice. For asia Main unit USB(Compatible with USB 2.0 Full-Speed) Compatible device USB mass storage class device Compatible file system FAT16, FAT32 Output power DC 5 V=500 mA HDMI Output power DC 5 V=55 mA Type 1-w

16、ay bass reflex type Magnetically shielded type Speaker driver Front ch 5.5 cm cone Surround ch 5.5 cm cone Power handling capacity Front ch 50W Surround ch 50W Impedance 3 Frequency range 80 Hz - 20 kHz Sound pressure level 77 dB/Wm Dimensions (W x H x D) including projection parts 88 mm x 184 mm x

17、125 mm Mass (1 speaker) 1.2 kg Type Bass reflex type Speaker driver 16 cm cone Power handling capacity 150 W Impedance 6 Frequency range 30 Hz - 200 Hz Sound pressure level 76 dB/Wm Dimensions (W x H x D) 300 mm x 301 mm x 305 mm Mass 8.2 kg Tuner FM frequency 87.50 MHz - 108.00 MHz AM frequency (Mi

18、ddle 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 - 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 k

19、USB digital input terminal x 1 Audio output headphone terminal x 1 Impedance16 - 1 k Terminal (rear of the main unit) Audio output speaker terminals x 1 Left/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) Impeda

20、nce 6 - 16 Optical digital input terminal x 1-23 dBm to -15 dBm Optical digital output terminal x 1-23 dBm to -15 dBm (No.MB662)1-5 Speaker (SP-NXF3F) Subwoofer (SP-NXF3W) Designs and specifications are subject to change without notice. Component video output terminals x 1Y 1.0 Vp-p, 75 terminated P

21、B 0.7 Vp-p, 75 terminated PR 0.7 Vp-p, 75 terminated Composite video output terminal x 11.0 Vp-p, 75 terminated Audio input terminals x 1500 mV/47 k HDMI monitor output terminal x 1 FM antenna terminal x 1 AM antenna terminal x 1 General Power source (Thailand) AC 220 V, 50 Hz Power source (other co

22、untries/areas) AC 110 - 127/220 -240 V,50/60 Hz Power consumption (in operation) 90 W Power consumption (on standby) 0.8 W Dimensions (W x H x D) including projecting parts 300 mm x 95 mm x 295 mm Mass 3.4 kg USB (Compatible with USB 2.0 Full-Speed) Compatible device USB mass storage class device Co

23、mpatible file system FAT16, FAT32 Output power DC 5 V=500 mA HDMI Output power DC 5 V=55 mA Type 1-way bass reflex type Magnetically shielded type Speaker driver Front ch 5.5 cm cone Surround ch 5.5 cm cone Power handling capacity Front ch 50W Surround ch 50W Impedance 3 Frequency range 80 Hz - 20 k

24、Hz Sound pressure level 77 dB/Wm Dimensions (W x H x D) including projection parts 88 mm x 184 mm x 125 mm Mass (1 speaker) 1.2 kg Type Bass reflex type Speaker driver 16 cm cone Power handling capacity 150 W Impedance 6 Frequency range 30 Hz - 200 Hz Sound pressure level 76 dB/Wm Dimensions (W x H

25、x D) 300 mm x 301 mm x 305 mm Mass 8.2 kg 1-6 (No.MB662) SECTION 1 PRECAUTION 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no changes should be made to the original design u

26、nless 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 design or circuitry of the product should not be made. Any design alterations of the product

27、 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 therefrom. (3) Many electrical and mechanical parts in the products have special safety-related ch

28、aracteristics. 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, watt- age, etc. Replacement parts which have these special safety characteristics are identi

29、fied 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 replacement which does not have the same safety charac- teristics as the recommended replacem

30、ent 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 separated from live parts, high temperature parts, moving parts and/or sharp edges for the preven

31、tion 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. (5) Leakage shock hazard testing After reassembling the product, always perform an isola-

32、 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 electrical shock.Do not use a line isolation transformer during this check. Plug the AC lin

33、e 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 chassis, to a known good earth ground. Any leakage cur- rent must not exceed 0.5mA AC (r.m.s

34、.). 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 0.15F AC-type capacitor between an ex- posed metal part and a known good earth ground. Me

35、asure 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 AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each mea

36、surement. 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. (2) It is the legal responsibility of the repairer to ensure that these safety standards

37、 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 provided, check setting for local voltage. 1.3Caution Burrs formed during molding may be le

38、ft 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-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with

39、 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 manufacturer. (This regulation dose not Except the J and C version) Good earth ground Place t

40、his probe on each exposed metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity) 1500 10W 0.15 F AC TYPE (No.MB662)1-7 1.5Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the

41、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 optical pickup (laser diode) in devices such as laser products. Be careful to use proper g

42、rounding 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 traverse unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap to rel

43、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 optical pickup are shorted. After replacement, return the shorted parts to their original conditi

44、on. (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 (optical pickup) (1) Do not subject the traverse unit (optical pickup) to strong shocks, a

45、s 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. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too

46、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 laser power. Do not turn it. 1.7Attention when traverse unit is decomposed *Please refer

47、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 without applying solder, the pickup may be destroyed by static electricity.) In the assembly, be

48、 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 1-8 (No.MB662) 1.8Important for laser products 1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Vis

49、ible 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 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 safety