JVC-FSX1-cs-sm 维修电路原理图.pdf

SERVICE MANUALCOPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITEDNo.MB0042003/8COMPACT COMPONENT SYSTEMMB00420037FS-X3, FS-X1TABLE OF CONTENTS1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-73DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-84ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-215TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24SP-FSX1CA-FSX1SP-FSX1SP-FSX3CA-FSX3SP-FSX3Area SuffixJ - U.S.A.C - CanadaRadioFans.CN 收音机爱 好者资料库1-2 (No.MB004)SPECIFICATIONDesign and specifications are subject to change without notice.CA-FSX1/CA-FSX3AmplifierOutput Power30 W per channel min. RMS driven into 4 at 1 kHz with no more than 10 % total harmonic distortionInput Sensitivity/Impedance (1 kHz)LINE IN210 mV/51 k (LEVEL 1)520 mV/51 k (LEVEL 2)Output Sensitivity/Impedance (1 kHz) LINE OUT600 mV/5.1 kOPTICAL DIGITAL OUT -23 dBm - -15 dBmSpeaker terminalsMIN. 4 Subwoofer out220 mV/4.9 kPhones16 - 1 kCD PlayerSignal-To-Noise Ratio95 dBWow And FlutterUnmeasurableTunerFM Tuner Tuning Range87.5 MHz - 108.0 MHzAM Tuner Tuning Range530 kHz - 1 710 kHzPower SpecificationsPower RequirementsAC 120 V , 60 HzPower Consumption25 W (power on mode)1.2 W (on Standby: with display off)4.6 W (on Standby: with display on)Center UnitDimensions160 mm 130 mm 242 mm (W/H/D)(6 - 5/16 5? 1/8 9 - 17/32)MassApprox. 2.3 kg (5.1 lbs)Speaker Specifications (each unit)SP-FSX1Type1-Way Bass-reflex typeSpeaker8.0 cm (3-3/16)cone 1Power Handling Capcity30 WImpedance4Frequency Range55 Hz 20 000 HzSound Pressure Level81 dB/WmDimensions114 mm 176 mm 174 mm (W/H/D)4-1/2 6-15/16 6-7/8)MassApprox. 1.3 kg (2.9 lbs) eachSP-FSX3Type2-Way Bass-reflex typeSpeaker (Woofer)10.0 cm (3-15/16) cone 1Speaker (Tweeter)2.0 cm (13/16) dome 1Power Handling Capcity30 WImpedance4 Frequency Range55 Hz 40 000 HzSound Pressure Level85 dB/WmDimensions147 mm 246 mm 210 mm (W/H/D)(5-13/16 9-11/16 8-5/16)MassApprox. 2.4 kg (5.3 lbs) eachRadioFans.CN 收音机爱 好者资料库(No.MB004)1-3SECTION 1PRECAUTION1.1Safety Precautions(1) This design of this product contains special hardware andmany circuits and components specially for safety purpos-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 circuitry 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 electrical 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. Replacement 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 have 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 temperature 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 testingAfter 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 transformer during this check. Plug the AC line cord directly into the AC outlet. Using aLeakage 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 leakage 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 anexposed metal 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 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.). 1.2Warning(1) This equipment has been designed and manufactured tomeet international safety standards.(2) It is the legal responsibility of the repairer to ensure 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.1.3CautionBurrs formed during 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.1.4Critical parts for safetyIn regard with component parts appearing on the silk-screenprinted side (parts side) of the PWB diagrams, the parts that areprinted 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 earth groundPlace this probe on each exposedmetal part.AC VOLTMETER(Having 1000 ohms/volts,or more sensitivity)1500 10W0.15 F AC TYPE1-4 (No.MB004)1.5Importance administering point on the safetyCaution: For continued protection against risk offire, replace only with same type 5A/125V forF9101.This symbol specifies type of fast operating fuse.Precaution: Pour eviter risques de feux, remplacezle fusible de surete de F9101 comme le meme typeque 5A/125V.Ce sont des fusibles suretes qui functionnes rapide.Power supply board (Forward side)F9101(No.MB004)1-51.6Preventing static electricityElectrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laserdiode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.1.6.1 Grounding to prevent damage by static electricityStatic electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players. Be careful to use proper 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 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 opticalpickup 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 easilydestroy the laser diode. 1.7Handling 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 thereplacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too longa 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.1.8Attention when traverse unit is decomposed*Please refer to Disassembly method in the text for the CD pickup unit. Apply solder to the short land sections before the flexible wire is disconnected from the connector CN101 on the CD servo board.(If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land sections after connecting the flexible wire.1MConductive material(conductive sheet) or iron palate(caption)Anti-static wrist strapFlexible wireShort land sectionCN601CD servo board1-6 (No.MB004)1.9Important for laser products1.CLASS 1 LASER PRODUCT2.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 theLaser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions.4.CAUTION : The compact disc player uses 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 de feated. 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 herein may result in hazardous radiation exposure.!Please use enough caution not to see the beam directly or touch it in case of an adjustment or operationcheck.(No.MB004)1-7SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.1-8 (No.MB004)SECTION 3DISASSEMBLY3.1Main body section3.1.1Removing the rear cover (See Figs.1 and 2)(1) From the back side of the main body, remove the fifteenscrews A attaching the rear cover. (See Fig.1.)(2) Remove the two screws B attaching the fan cover. (SeeFig.1.)(3) Remove the rear cover and disconnect the power cordfrom the connector CN900 on the power supply board ofthe main body. (See Fig.2.)(4) Remove the strain relief in the direction of the arrow. (SeeFig.2.)Reference :Before attaching the rear cover, pass the power cord throughthe guide hole a on the rear cover. (See Fig.2.)Fig.1Fig.2Rear coverAAAABBFan coverARear coverPowersupplyboardGurde hole aFuseStrain reliefPower cordFuse clipCN900(No.MB004)1-93.1.2Removing the bottom case (A) (See Fig.3) Prior to performing the following procedures, remove the rearcover.(1) From the bottom side of the main body, remove five screwsC and screw D attaching the bottom case (A).(2) Remove the bottom case (A) in the direction of the arrowwhile lifting the rear section of the bottom case (A).3.1.3Removing the bottom case (B) (See Fig.3)(1) From the bottom side of the main body, remove the twoscrews E attaching the bottom case (B).(2) Release the claw b of the bottom case (B) and remove thebottom case in the direction of the arrow.Note :When turning the main body upside down to remove the bot-tom case (A) and the bottom case (B), place a cushion be-neath the main body so as not to scratch the top caseassembly, volume control knob or other parts.Fig.3Bottomcase(B)CCCEClaw bDBottomcase (A)Bottomchassis1-10 (No.MB004)3.1.4Removing the top case assembly (See Figs.4 to 7) Prior to performing the following procedures, remove the rearcover and bottom case (B).(1) From the front side of the main body, remove the twoscrews F attaching the top case assembly. (See Fig.4.)(2) Disconnect the card wires from the connectors CN721 andCN741 on the micon board. (See Fig.4.)(3) From the back side of the main body, disconnect the wirefrom the connector CN451 on the function board. (SeeFig.5.)(4) Remove the top case assembly while lifting it in the direc-tion of the arrow. (See Fig.5.)(5) From the inside of the top case assembly, disconnect thecard wire from the connector CN651 on the CD servoboard. (See Figs.6 and 7.)Reference :Reassembly of the top case assembly. Before reattaching the top case assembly to the main body,connect the card wire to the connector CN651 on the CD servoboard and hang it to the holder section c of the CD mechanismassembly. (See Figs. 6 and 7) Let the card wire to be connected across the connectorsCN721 and CN741 go through the slit d on the top case as-sembly. (See Fig. 7.)Fig.4Fig.5Fig.6Fig.7FTop case assemblyCN741CN721Card wiresMicon boardCN451WireTop case asemblyFunction boardCN651CD mechanism assemblyCD servo boardHolder section cTop case assemblyCN651Notch dCard wireCD mechanism assemblyCD servo boardHolder section cTop case assembly(No.MB004)1-113.1.5Removing the tuner (See Fig.8) Prior to performing the following procedures, remove the rearcover, bottom case (B) and top case assembly.(1) From the right side of the main body, disconnect the cardwire from the connector CN1 on the tuner.Fig.83.1.6Removing the function board (See Fig.9) Prior to performing the following procedures, remove the rearcover, bottom case (B) and top case assembly.(1) From the top side of the main body, disconnect the fan mo-tor wire from the connector CN942 on the function board.(2) Disconnect the wires from the connectors CN893 andCN895 on the function board.(3) Remove the spacer and tie band fixing the wires.(4) Disconnect the wire from the connector CN301 on the dig-ital amplifier board.(5) Remove the three screws G attaching the function board.(6) Lift the function board in the direction of the arrow and dis-connect it from the connector CN951 on the digital amplifierboard.Reference :When connecting the fan motor wire, put it through the slit e ofthe function board.Fig.93.1.7Removing the micon board (See Fig.10) Prior to performing the following procedures