JVC-FSX1-cs-sm维修电路原理图.pdf

SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED No.MB004 2003/8 COMPACT COMPONENT SYSTEM MB00420037 FS-X3, FS-X1 TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 5TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24 SP-FSX1CA-FSX1SP-FSX1 SP-FSX3CA-FSX3SP-FSX3 Area Suffix J - U.S.A. C - Canada RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB004) SPECIFICATION Design 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 distortion Input 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 k OPTICAL DIGITAL OUT -23 dBm - -15 dBm Speaker terminalsMIN. 4 Subwoofer out220 mV/4.9 k Phones16 - 1 k CD PlayerSignal-To-Noise Ratio95 dB Wow And FlutterUnmeasurable TunerFM Tuner Tuning Range87.5 MHz - 108.0 MHz AM Tuner Tuning Range530 kHz - 1 710 kHz Power Specifications Power RequirementsAC 120 V , 60 Hz Power 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 type Speaker8.0 cm (3-3/16)cone 1 Power Handling Capcity30 W Impedance4 Frequency Range55 Hz 20 000 Hz Sound Pressure Level81 dB/Wm Dimensions114 mm 176 mm 174 mm (W/H/D) 4-1/2 6-15/16 6-7/8) MassApprox. 1.3 kg (2.9 lbs) each SP-FSX3Type2-Way Bass-reflex type Speaker (Woofer)10.0 cm (3-15/16) cone 1 Speaker (Tweeter)2.0 cm (13/16) dome 1 Power Handling Capcity30 W Impedance4 Frequency Range55 Hz 40 000 Hz Sound Pressure Level85 dB/Wm Dimensions147 mm 246 mm 210 mm (W/H/D) (5-13/16 9-11/16 8-5/16) MassApprox. 2.4 kg (5.3 lbs) each RadioFans.CN 收音机爱 好者资料库 (No.MB004)1-3 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 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 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) 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 components 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 Manual. 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, barriers 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 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 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 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 1,500 10W resistor paralleled by a 0.15F AC-type capacitor between an exposed 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 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 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) 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 component 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 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 1-4 (No.MB004) 1.5Importance administering point on the safety Caution: For continued protection against risk of fire, replace only with same type 5A/125V for F9101. This symbol specifies type of fast operating fuse. Precaution: Pour eviter risques de feux, remplacez le fusible de surete de F9101 comme le meme type que 5A/125V. Ce sont des fusibles suretes qui functionnes rapide. Power supply board (Forward side) F9101 (No.MB004)1-5 1.6Preventing static electricity Electrostatic 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. 1.6.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players. 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 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 diode 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. 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 the replacement 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-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. 1M Conductive material (conductive sheet) or iron palate (caption) Anti-static wrist strap Flexible wire Short land section CN601 CD servo board 1-6 (No.MB004) 1.9Important for laser products 1.CLASS 1 LASER PRODUCT 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 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 operation check. (No.MB004)1-7 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-8 (No.MB004) SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1Removing the rear cover (See Figs.1 and 2) (1) From the back side of the main body, remove the fifteen screws A attaching the rear cover. (See Fig.1.) (2) Remove the two screws B attaching the fan cover. (See Fig.1.) (3) Remove the rear cover and disconnect the power cord from the connector CN900 on the power supply board of the main body. (See Fig.2.) (4) Remove the strain relief in the direction of the arrow. (See Fig.2.) Reference : Before attaching the rear cover, pass the power cord through the guide hole a on the rear cover. (See Fig.2.) Fig.1 Fig.2 Rear cover AA A A B B Fan cover A Rear cover Power supply board Gurde hole a Fuse Strain relief Power cord Fuse clip CN900 (No.MB004)1-9 3.1.2Removing the bottom case (A) (See Fig.3) Prior to performing the following procedures, remove the rear cover. (1) From the bottom side of the main body, remove five screws C and screw D attaching the bottom case (A). (2) Remove the bottom case (A) in the direction of the arrow while 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 two screws E attaching the bottom case (B). (2) Release the claw b of the bottom case (B) and remove the bottom 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 case assembly, volume control knob or other parts. Fig.3 Bottom case(B) C CC E Claw b D Bottom case (A) Bottom chassis 1-10 (No.MB004) 3.1.4Removing the top case assembly (See Figs.4 to 7) Prior to performing the following procedures, remove the rear cover and bottom case (B). (1) From the front side of the main body, remove the two screws F attaching the top case assembly. (See Fig.4.) (2) Disconnect the card wires from the connectors CN721 and CN741 on the micon board. (See Fig.4.) (3) From the back side of the main body, disconnect the wire from the connector CN451 on the function board. (See Fig.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 the card wire from the connector CN651 on the CD servo board. (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 servo board and hang it to the holder section c of the CD mechanism assembly. (See Figs. 6 and 7) Let the card wire to be connected across the connectors CN721 and CN741 go through the slit d on the top case as- sembly. (See Fig. 7.) Fig.4 Fig.5 Fig.6 Fig.7 F Top case assembly CN741 CN721 Card wires Micon board CN451 Wire Top case asembly Function board CN651 CD mechanism assembly CD servo board Holder section c Top case assembly CN651 Notch d Card wire CD mechanism assembly CD servo board Holder section c Top case assembly (No.MB004)1-11 3.1.5Removing the tuner (See Fig.8) Prior to performing the following procedures, remove the rear cover, bottom case (B) and top case assembly. (1) From the right side of the main body, disconnect the card wire from the connector CN1 on the tuner. Fig.8 3.1.6Removing the function board (See Fig.9) Prior to performing the following procedures, remove the rear cover, 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 and CN895 on the function board. (3) Remove the spacer and tie band fixing the wires. (4) Disconnect the wire