JVC-FSP550-cs-sm维修电路原理图.pdf

SERVICE MANUAL COPYRIGHT 2004 Victor Company of Japan, Limited No.MB229 2004/5 COMPACT COMPONENT SYSTEM MB22920045 FS-P550 TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31 Area suffix C - Canada RadioFans.CN 收音机爱 好者资料库 1-2 (No.MB229) SPECIFICATION Designs and Specifications are subject to change without notice. Amplifier sectionOutput Power:80 WHIGH:40 W (20 W + 20 W) at 4 (10% THD) LOW:40 W (20 W + 20 W) at 4 (10% THD) Audio InputAUX:400 mV/50 k Digital outputDVD OPTICAL DIGITAL OUT:-21 dBm to -15 dBm (660 nm 30 nm) Video outputColor system:NTSC (interlaced/progressive) VIDEO (composite)1 V(p-p)/75 S-VIDEOY (luminance):1 V(p-p)/75 C (chrominance, burst):0.286 V(p-p)/75 COMPONENT(Y):1 V(p-p)/75 (PB/PR):0.7 V(p-p)/75 Speakers/Impedance4 - 16 Tuner sectionFM tuning range87.5 MHz - 108.0 MHz AM (MW) tuning range530 kHz - 1 710 kHz Disc player sectionPlayable discDVD Video/DVD Audio CD/VCD/SVCD CD-R/CD-RW (CD/SVCD/VCD/MP3/WMA/JPEG format) DVD-R/DVD-RW (Video format) Dynamic range90 dB Horizontal resolution500 lines Wow and flutterImmeasurable SpeakersSpeaker unitsHIGH4 cm (1 5/8 in.) cone 1 LOW10 cm (3 15/16 in.) cone 1 ImpedanceHIGH4 LOW4 Dimensions (approx.)145 mm 230 mm 202 mm (5 3/4 in. 9 1/16 in. 8in.) (W/H/D) Mass (approx.)2.2 kg (4.9 lbs) each GeneralPower requirementAC 120 V , 60 Hz Power consumption90 W (at operation) 1.8 W (on standby) Dimensions (approx.)170 mm 230 mm 311 mm (6 3/4 in. 9 1/16 in. 12 1/4in.) (W/H/D) Mass (approx.)5.0 kg (11.1 lbs) RadioFans.CN 收音机爱 好者资料库 (No.MB229)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 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 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.MB229) 1.5Preventing 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. 1.5.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as 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 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. 1.6Handling 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 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. 1.7Attention 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 flexible wire is disconnected from the connecto on the servo board. (If the flexible wire is disconnected without applying 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 flexible wire. 1M Conductive material (conductive sheet) or iron palate (caption) Anti-static wrist strap Traverse mechanism assembly Pickup Short land section Card wire Connector (No.MB229)1-5 1.8Importance administering point on the safety Power supply board Caution: For continued protection against risk of fire, replace only with same type 2.5 A/125 V for F1001 and F1003, 1.25 A/125 V for F1004, 6.3 A/125 V for F1005 and F1006. This symbol specifies the type of fast operating fuse. Precaution: Pour la protection continue contre les risques dincendie, remplacer uniquement par le meme type: fusible 2,5 A/125 V pour les F1001 et F1003, 1,25 A/125 V pour le F1004, et 6,3 A/125 V pour les F1005 et F1006. Ce symbole specifie le type de fusible a action rapide. 2.5A-125V F1001 1.25A-125V F1004 2.5A-125V F1003 6.3A-125V F1005 6.3A-125V F1006 1-6 (No.MB229) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MB229)1-7 SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1 Removing the side panels L/R (See Figs.1 to 4) (1) From the back side of the main body, remove the four screws A attaching the side panels L/R to the rear panel. (See Fig.1.) (2) From the bottom side of the main body, remove the two screws B attaching the side panels L/R to the bottom chas- sis. (See Fig.2.) (3) From the both sides of the main body, release the engage- ment sections (a, b) of the side panels L/R from the top panel in the direction of the arrow. (See Figs.3 and 4.) (4) Remove the side panels L/R toward this side. Fig.1 Fig.2 Fig.3 Fig.4 Side panel RSide panel L Rear panel AA Side panel L B BBottom chassis Side panel R Top panel a a a Side panel R Top panel b b b Side panel L 1-8 (No.MB229) 3.1.2 Removing the front panel assembly (See Figs.5 to 8) Prior to performing the following procedures, remove the side panels L/R. (1) From the right side of the main body, push the slide cam and pull the tray assembly out of the main body in the di- rection of the arrow 1. (See Fig.5.) (2) Remove the tray fitting from the tray assembly in the direc- tion of the arrow 2. (See Fig.5.) (3) From the both sides of the main body, remove the two screws C attaching the front panel assembly. (See Figs.6 and 7.) (4) Release the two claws c and claws d to draw out the front panel assembly in the direction of the arrow. (See Figs.6 and 7.) (5) From the right side of the main body, disconnect the card wire from the connector CN730 on the main board. (See Fig.8.) (6) Disconnect the wire from the connector CN270 on the main board. (See Fig.8.) (7) Remove the front panel assembly in the direction of the ar- row. (See Fig.8.) Fig.5 Fig.6 Fig.7 Fig.8 1 2 Front panel assembly Slide cam Tray assembly Tray fitting Front panel assembly C c d Front panel assembly C c d Front panel assembly CN270 Main board CN730Card wire Wire (No.MB229)1-9 3.1.3 Removing the top panel (See Fig.9) Prior to performing the following procedures, remove the side panels L/R and front panel assembly. (1) From the back side of the main body, remove the screw D attaching the top panel to the rear panel. (2) Take out the top panel from the main body. Fig.9 Top panel D Rear panel 1-10 (No.MB229) 3.1.4 Removing the tuner (See Figs.10 and 11) Prior to performing the following procedures, remove the side panel L. (1) From the back side of the main body, remove the two screws E attaching the tuner to the rear panel. (See Fig.10.) (2) Disconnect the card wire from the connector CN1 on the tuner. (See Fig.11.) Fig.10 Fig.11 E Rear panel Card wire CN1 Tuner (No.MB229)1-11 3.1.5 Removing the rear panel (See Fig.12) Prior to performing the following procedures, remove the side panels L/R. (1) From the back side of the main body, remove the twelve screws F attaching the rear panel. (2) Release the engagement sections e and remove the rear panel. Fig.12 3.1.6 Removing the video board (See Fig.13) Prior to performing the following procedures, remove the side panels L/R and rear panel. (1) From the forward side of the video board, disconnect the card wires from connector CN300. (2) Disconnect the wire to the connector CN301 on the video board. Fig.13 Rear panel F ee F Video boardCN300 CN301 1-12 (No.MB229) 3.1.7 Removing the fan (See Fig.14) Prior to performing the following procedures, remove the side panels L/R, front panel assembly, top panel and rear panel. (1) From the front side of the main body, remove the two screws G attaching the fan bracket to the heat sink B. (2) Remove the two screws H attaching the fan to the fan bracket. Reference: Remove the tuner and video board as required. (See Figs.10, 11, and 13) When attaching the screws H, attach the wire holders with them. Fig.14 3.1.8 Removing the main board (See Fig.15) Prior to performing the following procedures, remove the side panels L/R, front panel assembly, top panel, tuner, rear panel and video board. (1) From the right side of the main body, remove the two screws J attaching the main board. (2) Remove the main board toward this side and disconnect the connector CN200 on the main board. (3) From the forward side of the main board, disconnect the card wires from the connectors (CN210, CN220, CN720). Fig.15 Heat sink B G Fan bracket H Fan bracket Fan H Wire holders JJ CN200 Card wire CN220 CN720 Main board CN210 (No.MB229)1-13 3.1.9 Removing the power supply board (See Fig.16) Prior to performing the following procedures, remove the side panel L and rear panel. (1) From the left side of the main body, remove the screw K at- taching the power supply board. (2) Remove the power supply board toward this side and dis- connect the connector CN104 on the power supply board. (3) From the forward side of the power s