JVC-UXF3-cs-sm 电路图 维修手册.pdf

《JVC-UXF3-cs-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《JVC-UXF3-cs-sm 电路图 维修手册.pdf（58页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL COPYRIGHT 2010 Victor Company of Japan, Limited No.MB743 2010/6 MICRO COMPONENT SYSTEM MB74320106 SERVICE MANUAL UX-F3BA, UX-F3BB, UX-F3BC, UX-F3BE, UX-F3BEN, UX-F3BEV, UX-F3BJ, UX-F3BUJ, UX-F3HB, UX-F3HE, UX-F3HEN, UX-F3HEV COPYRIGHT 2010 Victor Company of Japan, Limited Lead free so

2、lder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . .

3、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 4ADJUSTMENT . . . . . . . . . . . . . . . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 SP-UXF3B SP-UXF3BCA-UXF3B SP-UXF

5、3H SP-UXF3HCA-UXF3H except UX-F3BJ/C except UX-F3BJ/C RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB743) SPECIFICATION Design and specifications are subject to change without notice. Main unit (CA-UXF3B/CA-UXF3H)For B.E.EN.EVFor J.C General Power sourceAC 230 V , 50 HzAC 120 V , 60 Hz Power consumption (at oper

6、ation)40 W Power consumption (on standby)1.00 W or less Dimensions (approx.) (W x H x D)236 mm 123 mm 285 mm (including projecting parts) 236 mm 123 mm 285 mm (9-5/16“4-7/8“11-1/4“) (including projecting parts) Mass (approx.)2.0 kg2.0 kg(4.5 lbs) Amplifier Output Power60 W (30 W + 30 W) at 6 (10% TH

7、D) Audio InputAUDIO IN: Stereo mini ( 3.5 mm) Speaker impedance6 - 16 Tuner FM frequency87.50 MHz - 108.00 MHz USB (Only Europe) USB specificationCompatible with USB 2.0 Full Speed Compatible deviceMass storage class Compatible systemFAT16, FAT32 Output powerDC 5 V 500 mA iPod Output powerDC 5 V 500

8、 mA Video outComposite Speaker(SP-UXF3B/SP-UXF3H) Speaker typeBass-reflex type Tweeter4 cm4 cm(1-5/8“) Woofer12 cm12 cm(4-3/4“) Impedance6 Dimensions (approx.) (W x H x D)141 mm 250 mm 181 mm (including projecting parts) 141 mm 250 mm 181 mm (5-9/16“9-7/8“7-3/16“) (including projecting parts) Mass (

9、approx.)1.8 kg each1.7 kg (3.8 lbs) each RadioFans.CN 收音机爱 好者资料库 (No.MB743)1-3 Design and specifications are subject to change without notice. UX-F3BA/UX-F3BUJ General Power sourceFor Australian modelAC 240 V , 50 Hz For another modelAC 110 V - 127 V / 220 V - 240 V adjustable with voltage selector,

10、 50/60 Hz Power consumption (at operation)40 W Power consumption (on standby)1.00 W or less Dimensions (approx.) (W H D)236 mm 123 mm 285 mm (including projecting parts) Mass (approx.)2.0 kg Amplifier Output Power60 W (30 W + 30 W) at 6 (10% THD) Audio InputAUDIO IN: Stereo mini ( 3.5 mm) Speaker im

11、pedance6 - 16 Tuner FM frequency87.50 MHz - 108.00 MHz USB USB specificationCompatible with USB 2.0 Full Speed Compatible deviceMass storage class Compatible systemFAT16, FAT32 Output powerDC 5 V 500 mA iPod Output powerDC 5 V 500 mA Video outComposite Speaker(SP-UXF3B) Speaker typeBass-reflex type

12、Tweeter4 cm Woofer12 cm Impedance6 Dimensions (approx.) (W H D)141 mm 250 mm 181 mm (including projecting parts) Mass (approx.)1.8 kg each RadioFans.CN 收音机爱 好者资料库 1-4 (No.MB743) SECTION 1 PRECAUTION 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and

13、 components specially for safety 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

14、only. (2) Alterations of the design 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 pro

15、perty damage resulting therefrom. (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 componen

16、ts rated for higher voltage, watt- 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 Manu

17、al. The use of a substitute replacement 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, barr

18、iers and the like to be separated 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 t

19、o normal, after reassem- bling. (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

20、 to operate without danger of electrical 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

21、 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.). 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 1,5

22、00 10W resistor paralleled by a 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 t

23、o the chassis, and measure the 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

24、 international safety standards. (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)

25、 If mains voltage selector is provided, 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 compone

26、nt parts appearing on the silk-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

27、 rating as specified by the manufacturer. (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.MB743)1-5 1.5Preventing static electricity Electrostat

28、ic discharge (ESD), which occurs 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

29、 the work area can destroy the 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 o

30、ver it before placing the traverse 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 d

31、iode on the replacement optical 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.

32、 1.6Handling the traverse unit (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 re

33、placement procedure in the text. 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-

34、fixed resistor that adjusts the laser power. Do not turn it. 1M Conductive material (conductive sheet) or iron palate (caption) Anti-static wrist strap 1-6 (No.MB743) 1.7Important for laser products 1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation wh

35、en 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 lase

36、r 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, t

37、he 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 see the beam directly or touch it in cas

38、e of an adjustment or operation check. WARNING LABEL and PRINT (No.MB743)1-7 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY 3.1Main body (Used model: UX-F3E) 3.1.1Removing the Top cover (See Fig.1, 2, 3, 4) (1) Remov

39、e the four screws A attaching the Top cover. (See Fig.1) Fig.1 (2) Remove the two screws B and two screws C attaching the both side of the Top cover. (See Fig.2) Fig.2 (3) Remove the three screws D, three screws E and one screw F attaching the Top cover. (See Fig.3) Fig.3 (4) Disengaged three hooks

40、a engaged Top cover. (See Fig.4) Fig.4 A A C B EF D hook a 1-8 (No.MB743) 3.1.2Removing the iPod bracket (See Fig.5, 6) (1) Disconnect the card wires from iPod board connected to connectors CN803 and CN804 of the Main board. (See Fig.5) (2) Remove the four screws G attaching the iPod bracket. (See F

41、ig.5) Fig.5 (3) Turn overt the iPod bracket; disconnect the connector wire from Display board connected to connector CON202 of the LED board. (See Fig.6) Fig.6 3.1.3Removing the Main board (See Fig.7) (1) Disconnect the connector wire from USB board connected to connector CN606 of the Main board. (2

42、) Disconnect the card wire from Tuner pack connected to connector CN604 of the Main board. (3) Disconnect the card wire from Upgrade board connected to connector CN605 of the Main board. (4) Disconnect he card wire from Display board connected to connector CN602 of the Main board. (5) Disconnect the

43、 connector wire from SMPS board connect- ed to connector CN601 of the Main board. (6) Disconnect the connector wire from MPEG board connect- ed to connector CN607 of the Main board. (7) Disconnect the card wire from MPEG board connected to connector CN609 of the Main board. (8) Disconnect the connec

44、tor wire from SMPS board connect- ed to connector CN603 of the Main board. (9) Disconnect the connector wire from FAN connected to con- nector CN612 of the Main board. (10) Remove the five screws H attaching the Main board. Fig.7 3.1.4Removing the SMPS board (See Fig.8) (1) Disconnect the connector

45、wire from Display board connect- ed to connector CN902 of the SMPS board. (2) Remove the three screws J attaching the SMPS board. Fig.8 3.1.5Removing the Front panel (See Fig.9, 10) (1) Disconnect the card wire from USB board connected to connector CN108 of the MPEG board. (See Fig.9) (2) Disengaged

46、 two hooks b engaged both side of the Front panel. (See Fig.9) Fig.9 (3) Disengage one hook c engaged Front panel. (See Fig.10) Fig.10 CN803CN804 GG CON202 CN606 CN604 CN605 CN602 CN601 CN607 CN609 CN603CN612 H H H J CN902 CN108hook b hook c (No.MB743)1-9 3.1.6Removing the DVD mechanism (See Fig.11.

47、 12, 13) (1) Remove the three screws K attaching the Rear cabi brack- et. (See Fig.11) Fig.11 (2) Disconnect the connector wire from MPEG board connect- ed to connector of the Loading board. (See Fig.12) (3) Disconnect the connector wire from MPEG board connect- ed to connector of the Traverse mecha

48、nism. (See Fig.12) Fig.12 (4) Disconnect the card wire from Pickup connected to con- nector CN102 of the MPEG board. (See Fig.13) (5) Remove the four screws L attaching the DVD mechanism. (See Fig.13) Fig.13 3.1.7Removing the MPEG board (See Fig.14) (1) Remove the four screws M attaching the MPEG bo

49、ard. Fig.14 3.1.8Removing the LED board (See Fig.15) (1) Remove the six screws N attaching the LED board. Fig.15 3.1.9Removing the iPod board (See Fig.16) (1) Remove the two screws P attaching the iPod board. Fig.16 3.1.10 Removing the USB board (See Fig.17) (1) Disconnect the connector wire from Display board connect- ed to connector CN203 of the USB board. (2) Remove the two screws Q attaching the USB board. Fig.17 K K Loading board connector Traverse mechanism connector CN102 L L M M N P P Q CN203 1-10 (No.MB743) 3.1.