JVC-UXP5-cs-sm 电路图 维修手册.pdf

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1、1-1 UX-P5 SERVICE MANUAL MICRO COMPONENT SYSTEM No.21000 Jun. 2001 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. UX-P5 UX-P5 Contents Safety precautions Preventing static electricity Important for laser products Disassembly method Main adjustment Flow of functional operation until TOC read (CD) Maint

2、enance of laser pickup Replacement of laser pickup Description of major ICs Internal connection of display 1-2 1-4 1-6 1-7 1-15 1-19 1-20 1-20 1-21 1-40 Area Suffix A UJ UP US UW UY Australia U.S. Militaly Korea Singapore South Africa Argentina SLEEP STANDBY/ON MD/AUX FM/AM TAPE CD DISPLAYDIMMER REP

3、EATRANDOMPROG FM MODE AUTO PRESET SOUND MODE CD CANCELMULTI KEYSET RM-SUXP5U REMOTE CONTROL VOLUME AHB PRO COMPACT DIGITAL AUDIO CDTAPEFM/AM M I C R O C O M P O N E N T S Y S T E M U X P 5 C D - R / R W P L A Y B A C K MD/AUX TIMER CLOCK STANDBY/ON STANDBY / ON VOLUMEFUNCTION SOUND DIRECT OPERATING

4、AHB PRO REC REV .MODE PHONESA U T O R E V E R S E REC / SP-UXP5CA-UXP5SP-UXP5 RadioFans.CN 收音机爱 好者资料库 1-2 UX-P5 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original

5、 design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only. 2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the p

6、roduct 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-relat

7、ed characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identif

8、ied in the Parts List of Service 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 characteristics as the recommended replacement p

9、arts 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 prevention o

10、f 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 re-assembling. 5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the product, alwa

11、ys perform an isolation check on the exposed metal parts of the product (antenna 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

12、. 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, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.

13、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 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good

14、 earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to eachexposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre the AC voltage across the resistor. Now, reverse the plug in the AC outlet and

15、 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. 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 standa

16、rds 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. Good earth ground Place this probe on each expos

17、ed metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity) 1500 10W 0.15 F AC TYPE ! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. In regard with component parts appear

18、ing 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 rating as spec

19、ified by the manufacturer. (Except the J and C version) RadioFans.CN 收音机爱 好者资料库 1-3 UX-P5 1. Service should be performed by qualified personnel only. 2. This equipment has been designed and manufactured to meet international safety standards. 3. It is the legal responsibility of the repairer to ensu

20、re that these safety standards are maintained. 4. Repairs must be made in accordance with the relevant safety standards. 5. It is essential that safety critical components are replaced by approved parts. 6. If mains voltage selector is provided, check setting for local voltage. 1. This design of thi

21、s product contains special hardware and many circuits and components specially for safety purposes. 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.

22、 2. Any unauthorised design alterations or additions will void the manufacturers guarantee ; furthermore the manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom. 3. Essential safety critical components are identified by ( ) on the Parts List and by sh

23、ading on the schematics, and must never be replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts in the product have special safety related characteristics. These characteristics are often not evident from visual inspection. Parts othe

24、r than specified by the manufacturer may not have the same safety characteristics as the recommended replacement parts shown in the Parts List of the Service Manual and may create shock, fire, or other hazards. 4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers

25、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 to nor

26、mal, after re-assembling. ! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. (U.K only) RadioFans.CN 收音机爱 好者资料库 1-4 UX-P5 Preventing static electricity Electrostatic discharge (ESD), whi

27、ch 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. 1.1. Grounding to prevent damage by static electricity Static electricity in the work area can destr

28、oy the optical pickup (laser diode) in devices such as DVD players. Be careful to use proper grounding in the area where repairs are being performed. 1.1.1. Ground the workbench 1. Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing

29、 the traverse unit (optical pickup) on it. 1.1.2. Ground yourself 1. Use an anti-static wrist strap to release any static electricity built up in your body. 1.1.3. Handling the optical pickup 1. In order to maintain quality during transport and before installation, both sides of the laser diode on t

30、he replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) 2. 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. 1.2.

31、Handling 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 replacem

32、ent 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. It is not possible to adjust the semi-fixed res

33、istor that adjusts the laser power. Do not turn it Conductive material (conductive sheet) or iron plate (caption) Anti-static wrist strap 1-5 UX-P5 1.3. Cautions on removing the CD traverse unit * For removing the CD traverse unit in detail, refer to the Adjustment Method section of this manual. 1.

34、Before disconnecting the flexible wire from the connector CN601 on the CD SERVO board, solder the part shown in the figure below. (Note:If the flexible wire is disconnected from the CN601 without presoldering, it may cause breakdown of the CD pickup assembly.) 2. When reassembling the CD traverse un

35、it, be sure to remove the solder from the soldered part after reconnecting the flexible wire to the CN601. CD SERVO board CD SERVO board Soldering part CN601 CN601 C601 C602 C603 C604 C605 C606 C607 C610 C611 C612 C613 C614 C615 C616 C617 C619 C620 C621 C622 C623 C624 C631 C632 C633 C641 C642 C643 B

36、619 C651 C652 C653 C654 C655 C656 C657 C658 C661 C663 C664 C665 C667 C668 C669 C670 C671 C672 C673 C676 C677 C679 C680 C691 C692 C693 C694 C695 C696 C699 C801 C802 C811 C812 C813 C814 C815 C821 C822 C823 C824 C831 C832 C833 CN601 CN651 CN652 CN801 D831 R648 IC652 IC801 IC802 L831 Q631 Q801 R601 R602

37、 R603 R604 R605 R606 R610 R611 R612 R613 R617 R618 R619 R620 R621 R631 R632 R634 R635 R636 R641 R642 R643 R647 R651 R652 R653 R654 R655 R656 R657 R658 R659 R661 R662 R663 R664 R665 R666 R667 R668 R669 R670 R682 R683 R685 R691 R692 R695 R696 R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R801 R802

38、 R803 R804 R805 R806 R807 R808 R809 R812 R821 R822 R823 R824 R831 W605 CN606 X651 B604 B616 B614 R813 C816 B613 B615 B610 B612 B617 B618 IC601 R607 B601 B603 B602 B611 B609 B608 B607 B606 B605 D601 D602 R681 C681 R684 MUTE FLAG CDDG BLKCK /REST MLD MDATA MCLK CDDG SUBQ SQCK /RST STAT FM+ REST SM- SM

39、+ D.GND FM- 1 1 1 1 1 BE BE C 31 6 ARF A.GND F- T- T+ F+ GND VR LD MD T2 K F1 NC T1 SR F2 115 T02 SCD SCD CDDG 13 LM+ OPSW GND CLSW LM- M.GND SW10 SW10 CLOSE OPEN OPSW CLSE CD+B CD+B CDL A.GND A.GND CDR 51 116 1 21 41 61 17 16 32 12 24 13 1-6 UX-P5 Important for laser products 1.CLASS 1 LASER PRODUC

40、T 2.DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 3.CAUTION : There are no serviceable parts inside the Laser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions. 4.CAUTION : The compact disc pla

41、yer uses invisible laserradiation and is equipped with safety switches whichprevent emission of radiation when the drawer is open and the safety interlocks have failed or are de feated. It is dangerous to defeat the safety switches. 5.CAUTION : If safety switches malfunction, the laser is able to fu

42、nction. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. VARNING : Osynlig laserstrlning r denna del r ppnad och sprren r urkopplad. Betrakta ej strlen. VARO : Avattaessa ja suojalukitus ohitettaessa o

43、let alttiina nkymttmlle lasersteilylle.l katso steeseen. ADVARSEL : Usynlig laserstrling ved bning , nr sikkerhedsafbrydere er ude af funktion. Undg udsttelse for strling. ADVARSEL : Usynlig laserstrling ved pning,nr sikkerhetsbryteren er avslott. unng utsettelse for strling. REPRODUCTION AND POSITI

44、ON OF LABELS WARNING LABEL !CAUTION Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. 1-7 UX-P5 Remove the six screws A on the back of the body. Remove the two screws B on the side of the body. Pull both sides of the metal cover outward a

45、nd lift the rear part of the cover. 1. 2. 3. Disassembly method Removing the metal cover (See Fig.1 and 2) Prior to performing the following procedure, remove the metal cover. Remove the two screws C on the back of the body.1. Removing the rear cover (See Fig.3) Fig.1 Fig.2 Fig.3 A A A A A Metal cov

46、er Metal cover B 2 C Rear cover Rear panel C 1-8 UX-P5 Prior to performing the following procedure, remove the metal cover. Disconnect the card wire from connector CN1 on the tuner board. Remove the screw D on the right side of the body. Remove the two screws E on the rear panel. 1. 2. 3. Removing t

47、he tuner board (See Fig.4 and 5) Prior to performing the following procedure, remove the metal cover and the rear cover. Disconnect the card wires from connector CN903, CN904 and the wire from CN905 on the main board on the upper side of the body. Remove the screw D attaching the tuner board and the

48、 CD mechanism on the right side of the body. Remove the two screws F attaching the rear panel and the CD mechanism on the back of the body. Move the rear part of the CD mechanism assembly upwards to disengage the two joints a and release from the rear panel. Pull the front panel toward the front and

49、 move the rear part of the CD mechanism assembly upwards. Then pull out the CD mechanism assembly from the front panel backward. 1. 2. 3. 4. Removing the CD mechanism assembly (See Fig.6 to 8) To remove the CD mechanism assembly efficiently, disconnect the card wireconnecting the tuner board with the main board in advance. REFERENCE: Fig.4 Fig.5 Fig.6 Fig.7 D CN1 Tuner board E Rear cover Rear panel Rear panel Tuner board Card wires CD mechanism assemblyFront panel assembly CN903 CN904 Main board