JVC-UXLP5-cs-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2009 Victor Company of Japan, Limited No.MB698 2009/10 MICRO COMPONENT SYSTEM MB698200910SERVICE MANUAL UX-LP5B, UX-LP5E, UX-LP5EN, UX-LP5EV, UX-LP5J, UX-LP5C, UX-LP5A, UX-LP5US, UX-LP5UB, UX-LP5UP, UX-LP5UT COPYRIGHT 2009 Victor Company of Japan, Limited Lead free solder us

2、ed in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . .

3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 CA-UXLP5SP-UXLP5SP-UXLP5 (for Europe) Ra

5、dioFans.CN 收音机爱 好者资料库 1-2 (No.MB698) SPECIFICATION UX-LP5 for Europe Specifications and appearance are subject to change without prior notice. Amplifier section OUTPUT POWER60 W (30 W + 30 W) at 6 (10% THD) Speakers/Impedance6 - 16 Audio inputAUDIO IN500 mV/47 k (at “LEVEL 1”) 250 mV/47 k (at “LEVEL

6、 2”) 125 mV/47 k (at “LEVEL 3”) Digital inputUSB MEMORY Tuner section FM tuning range87.50 MHz - 108.00 MHz AM (MW) tuning range522 kHz - 1 629 kHz CD player section Dynamic range88 dB Signal-to-noise ratio85 dB Wow and flutterImmeasurable iPod section iPod output powerDC 5 V 500 mA VIDEO OUTComposi

7、te USB storage USB specificationCompatible with USB 2.0 Full Speed Compatible deviceMass storage class Compatible file systemFAT16, FAT32 Bus power supplyDC 5 V 500 mA General Power requirementsAC 230 V , 50 Hz Power consumption35 W (power on) 8 W (standby mode) 1 W or less (Ecology Mode) Dimensions

8、 (approx)165 mm 259 mm 258 mm (W H D) Mass (approx)1.9 kg Speakers Speaker units10 cm 1; 1.5 cm 1 Impedance6 Dimensions (approx.)140 mm 250 mm 188 mm (W H D) Mass (approx.)1.4 kg each RadioFans.CN 收音机爱 好者资料库 (No.MB698)1-3 UX-LP5J/C Specifications and appearance are subject to change without prior no

9、tice. Amplifier section OUTPUT POWER35 W per channel, min. RMS, driven into 4 at 1 kHz with no more than 10% total harmonic distortion Speakers/Impedance6 - 16 Audio inputAUDIO IN500 mV/47 k (at “LEVEL 1”) 250 mV/47 k (at “LEVEL 2”) 125 mV/47 k (at “LEVEL 3”) Tuner section FM tuning range87.5 MHz -

10、108.0 MHz AM tuning range530 kHz - 1 710 kHz CD player section Dynamic range88 dB Signal-to-noise ratio85 dB Wow and flutterImmeasurable iPod section iPod output powerDC 5 V 500 mA VIDEO OUTComposite General Power requirementsAC 120 V , 60 Hz Power consumption35 W (power on) 8 W (standby mode) 1 W o

11、r less (Ecology Mode) Dimensions (approx.)165 mm 259 mm 258 mm (6-1/2 inches 10-1/4 inches 10-3/16 inches) (W H D) Mass (approx.)1.9 kg (4.2 lbs) Speakers Speaker units10 cm (3-15/16 inches) 1; 1.5 cm (5/8 inch) 1 Impedance6 Dimensions (approx.)140 mm 250 mm 188 mm (5-9/16 inches 9-7/8 inches 7-7/16

12、 inches) (W H D) Mass (approx.)1.4 kg (3.1 lbs) each RadioFans.CN 收音机爱 好者资料库 1-4 (No.MB698) UX-LP5 for Asia, Australia Specifications and appearance are subject to change without prior notice. Amplifier section OUTPUT POWER60 W (30 W + 30 W) at 6 (10% THD) Speakers/Impedance6 - 16 Audio inputAUDIO I

13、N500 mV/47 k (at “LEVEL 1”) 250 mV/47 k (at “LEVEL 2”) 125 mV/47 k (at “LEVEL 3”) Digital inputUSB MEMORY Tuner section FM tuning range87.50 MHz - 108.00 MHz AM tuning range531 kHz - 1 710 kHz (in 9 kHz spacing) 530 kHz - 1 710 kHz (in 10 kHz spacing) CD player section Dynamic range88 dB Signal-to-n

14、oise ratio85 dB Wow and flutterImmeasurable iPod section iPod output powerDC 5 V 500 mA VIDEO OUTComposite USB storage USB specificationCompatible with USB 2.0 Full Speed Compatible deviceMass storage class Compatible file systemFAT16, FAT32 Bus power supplyDC 5 V 500 mA General Power requirementsAC

15、 110 V - 127 V/AC 220 V - 240 V (adjustable with the voltage selector), 50 Hz/60 Hz AC 240 V , 50 Hz (only Australia) AC 220 V , 50 Hz (only Hong Kong) Power consumption35 W (power on) 8 W (standby mode) 1 W or less (Ecology Mode) Dimensions (approx)165 mm 259 mm 258 mm (W H D) Mass (approx)1.9 kg S

16、peakers Speaker units10 cm 1; 1.5 cm 1 Impedance6 Dimensions (approx.)140 mm 250 mm 188 mm (W H D) Mass (approx.)1.4 kg each (No.MB698)1-5 SECTION 1 PRECAUTION 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safety purpos

17、- 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 design or

18、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 therefrom. (3) M

19、any 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, watt- age,

20、 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 replacement

21、 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 separated from

22、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. (5) Lea

23、kage 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 electrica

24、l 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 chassis, t

25、o 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 0.15F A

26、C-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 AC volta

27、ge 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. (2) It

28、 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 provided,

29、 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-screen p

30、rinted 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 manufacture

31、r. (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 1-6 (No.MB698) 1.5Preventing static electricity Electrostatic discharge (ESD), which occurs when

32、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 optical

33、 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 traverse uni

34、t (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 pickup

35、 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 (optica

36、l 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. Remov

37、e 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 laser

38、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 without apply

39、ing 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 part (No.MB698)1-7 1.8Importa

40、nt 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 : Visible and/or

41、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 interlock

42、s 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 radiation exposure

43、. REPRODUCTION AND POSITION ! Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. CAUTION: INVISIBLE LASER RADIATION WHEN OPEN DO NOT STARE INTO BEAM DANGER: INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSER TO THE BEAM 1-8 (No.MB698

44、) 1.9Importance administering point on the safety R27 R29 R16 HS1 R31 R30 L5 D9 L7 R26 R14 CN3 R25 D18 C26 R28 R13 U6 D17 V7 V5 V3 V4 C18 C1 V2 C2 D3 D4 C19 C17 C31 PVCCPVCCPGND PGND GND GND C3 C4 D2 D1 V1 R9 F1 T2.5AH250V R32 L1 HS2 T1 D14 JP9 F2 R15 R22 CN2 CN5 C25 C27 C16 C15 C13 C12 C20 CN4 C14

45、C21 CN1 R10 R23 C11 JP8 D10 GND3 GND2 L4 L3 L6 D19 D12 GND 5V GND 5V D16D11 D13 FL+ FL+ -25V ECO 5VE GND GND GND 5VD 5VD 12V R2 R1 C6 D6 C5 C23 C10 C9 C7 C8 C22 C24 C28 L2 U2 U3 R8 R4 R24 R3 R6 R5 R7 R19 R12 R11 D8 JP5 JP3 JP4 JP1 JP2 JP6 SW1 D5 JP7 R18 R20 R21 Graphic symbol mark (This symbol means

46、 slow blow type fuse.) FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE AND RATING OF FUSES ; should be read as follows ; F901 : T1.6AH 250VF901 : T1.6AH 250V Full Fuse Replacement Marking FUSE CAUTION Le symbole graphique (Ce symbole signifie fusible de type a fusion lent.

47、) POUR UNE PROTECTION CONTINUE CONTRE DES RISQUES DINCENDIE, REMPLACER SEULEMENT PAR UN FUSIBLE DU MEME TYPE ; Marquage Pour Le Remplacement Complet De Fusible PRECAUTIONS SUR LES FUSIBLES doit etre interprete comme suit ; slow blow type / type a fusion lent (No.MB698)1-9 SECTION 2 SPECIFIC SERVICE

48、INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-10 (No.MB698) SECTION 3 DISASSEMBLY 3.1Main body (Used figure are UX-LP5E) 3.1.1Removing the Top cabinet (See Fig.1, 2) (1) Remove the six screws A attaching the both side of the Top cabinet. (See Fig.1) Fig.1 (2) Re

49、move the five screws B attaching the Top cabinet. (See Fig.2) Fig.2 3.1.2Removing the SMPS board (See Fig.3) (1) Remove the four screws C attaching the SMPS board. (2) Disconnect the connector wires from MCU board connect- ed to connectors CN2 and CN3 of the SMPS board. Fig.3 A A B B C C CN3 CN2 (No.MB698)1-11 3.1.3Removing the MCU board (See Fig.4) (1) Disconnect the card wire from Tuner pack connected to connector CN201 of the MCU board. (2) Disconnect the card wire from Display board connec