Jvc-RX-5062-SEV-Service-Manual电路原理图.pdf

SERVICE MANUALCOPYRIGHT © 2006 Victor Company of Japan, LimitedNo.MB5042006/2AUDIO/VIDEO CONTROL RECEIVERMB50420062RX-5060BJ,RX-5060BC,RX-5060BE,RX-5062SB,RX-5062SE,RX-5062SEN,RX-5062SEVLead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)TABLE OF CONTENTS1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-74 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-135 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13TA/NEWS/INFODISPLAY MODE1-2 (No.MB504)SPECIFICATIONNorthern america versionAmplifierOutput Power Front channels 100 W per channel, min. RMS, driven into 8 , at 1 kHz with no more than 10% total harmonic distortion.Center channel 100 W, min. RMS, driven into 8 , at 1 kHz with no more than 10% total harmon-ic distortion.Surround channels 100 W per channel, min. RMS, driven int 8 , at 1 kHz with no more than 10% total harmonic distortion.Audio Audio Input Sensitivity/Impedance (1 kHz) CD, TAPE/CDR, VCR, TV SOUND, DVD, AUX : 220 mV/47 kAudio Input (DIGITAL IN)* Coaxial DIGITAL 1 (DVD) : 0.5 V(p-p)/75 Optical DIGITAL 2 (CD) : -21 dBm to -15 dBm (660 nm ±30 nm)Recording Output Level TAPE/CDR, VCR : 220 mVSignal-to-Noise Ratio ('66 IHF/'78 IHF) CD, TAPE/CDR, VCR, TV SOUND, DVD : 62 dB/71 dBFrequency Response (8 ) CD, TAPE/CDR, VCR, TV SOUND, DVD, AUX : 20 Hz to 20 kHz (±1 dB)Equalization (5 bands) 63 Hz, 250 Hz, 1 kHz, 4 kHz, 16 kHz : ±8 dB (in 2 dB steps)Video Video Input Sensitivity/Impedance Composite video DVD, VCR, AUX : 1 V(p-p)/75 Video Output Level Composite video VCR, MONITOR OUT : 1 V(p-p)/75 Synchronization NegativeSignal-to-Noise Ratio 45 dBFM tuner (IHF)Tuning Range 87.5 MHz to 108.0 MHzUsable Sensitivity Monaural 12.8 dBf (1.2 µV/75 )50 dB Quieting Sensitivity Monaural 16.0 dBf (1.7 µV/75 )Stereo 37.5 dBf (20.5 µV/75 )Stereo Separation at OUT (REC) 35 dB at 1 kHzAM tunerTuning Range 530 kHz to 1 710 kHzGeneralPower Requirements AC 120V , 60 HzPower Consumption 155 W/200 VA (at operation)0.8 W (in standby mode)Dimensions (W × H × D) 435 mm × 146.5 mm × 369.5 mmMass 7.0 kg(No.MB504)1-3Europian version* Corresponding to Linear PCM, Dolby Digital, and DTS Digital Surround (with sampling frequency?32 kHz, 44.1 kHz, 48 kHz)Designs and specifications are subject to change without notice.AmplifierOutput Power Front channels 100 W per channel, min. RMS, driven into 8 , at 1 kHz with no more than 10% total harmonic distortion.Center channel 100 W, min. RMS, driven into 8 , at 1 kHz with no more than 10% total harmon-ic distortion.Surround channels 100 W per channel, min. RMS, driven into 8 , at 1 kHz with no more than 10% total harmonic distortion.Audio Audio Input Sensitivity/Impedance (1 kHz) CD, TAPE/CDR, VCR, TV SOUND, DVD, AUX : 220 mV/47 kAudio Input (DIGITAL IN) Coaxial DIGITAL 1 (DVD) : 0.5 V(p-p)/75 Optical DIGITAL 2 (CD) : -21 dBm to -15 dBm (660 nm ±30 nm)Recording Output Level TAPE/CDR, VCR : 220 mVSignal-to-Noise Ratio ('66 IHF/DIN) CD, TAPE/CDR, VCR, TV SOUND, DVD : 66 dB/62 dBFrequency Response (8 ) CD, TAPE/CDR, VCR, TV SOUND, DVD, AUX : 20 Hz to 20 kHz (±1 dB)Equalization (5 bands) 63 Hz, 250 Hz, 1 kHz, 4 kHz, 16 kHz : ±8 dB (in 2 dB steps)Video Video Input Sensitivity/Impedance Composite video DVD, VCR, AUX : 1 V(p-p)/75 Video Output Level Composite video VCR, MONITOR OUT : 1 V(p-p)/75 Synchronization NegativeSignal-to-Noise Ratio 45 dBFM tuner (IHF)Tuning Range 87.50 MHz to 108.00 MHzUsable Sensitivity Monaural 17.0 dBf (1.9 µV/75 )50 dB Quieting Sensitivity Monaural 21.3 dBf (3.2 µV/75 )Stereo 41.3 dBf (31.8 µV/75 )Stereo Separation at OUT (REC) 35 dB at 1 kHzAM (MW) tunerTuning Range 522 kHz to 1 629 kHzGeneralPower Requirements AC 230 V , 50 HzPower Consumption 140 W (at operation)0.8 W (in standby mode)Dimensions (W × H × D) 435 mm × 146.5 mm × 369.5 mmMass 7.0 kg1-4 (No.MB504)SECTION 1PRECAUTION1.1 Safety 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 a“Leakage 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 0.15µF AC-type capacitor between an ex-posed 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.). 1.2 Warning(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.1.3 CautionBurrs 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.1.4 Critical 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 TYPE(No.MB504)1-51.5 Importance administering point on the safetyGraphic symbol mark (This symbol means fast blow type fuse.)FOR CONTINUED PROTECTION AGAINST RISKOF FIRE, REPLACE ONLY WITH SAME TYPEAND RATING OF FUSES ;should be read as follows ;F201,F206,F207: 5A 125V F202,F203 : 2A 125VF201,F206,F207: 5A 125V F202,F203 : 2A 125VFull Fuse Replacement MarkingFUSE CAUTIONLe symbole graphique (Ce symbole signifiefusible de type a fusion rapide.)POUR UNE PROTECTION CONTINUE CONTREDES RISQUES D'INCENDIE, REMPLACERSEULEMENT PAR UN FUSIBLE DU MEME TYPE ;Marquage Pour Le RemplacementComplet De FusiblePRECAUTIONS SUR LES FUSIBLESdoit etre interprete comme suit ;CN251FC272FC221FC222FC231FC232FW201R201FC261110 111112 113114 120121 122130 131FC262FC271FC211 FC212R1EP1B106B105B104TA201TA202PW104PW102PW105PW103PW101B103B102B101B108B107B109B1101-6 (No.MB504)SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.(No.MB504)1-7SECTION 3DISASSEMBLY3.1 Main body3.1.1 Removing the top cover (See Fig. 1 and 2)(1) Remove the three screws A attaching the top cover.(2) Remove the four screws B attaching the both side of topcover.Fig.1Fig.2AB1-8 (No.MB504)3.1.2 Removing the front panel assembly (See Fig. 3 to 5)(1) Remove the three screws C attaching the top side of frontpanel assembly.(2) Remove the four screws D attaching the bottom side offront panel assembly.(3) Remove the one screw E attaching the ground wire to frontchassis.(4) Disconnect the connector to CN404 of audio board, CN504of video board, CN402 of main board and CN201 of regu-lator board.Fig.3Fig.4Fig.5CDECN504CN404CN402CN201Regulator boardMain board(No.MB504)1-93.1.3 Removing the rear panel and each I/O boards (See Fig. 6 to 8)(1) Remove the two screws F attaching the tuner board.(2) Disconnect the card wire from CN411 of main board.(3) Remove the three screws G attaching the digital board.(4) Disconnect the connector CN481 and CN482 of mainboard.(5) Remove the four screws H attaching the main board andremove the one screw J attaching the ground wire to frontboard.(6) Disconnect the connector CN421 of main board.(7) Remove the two screws K attaching the subwoofer board.(8) Disconnect the connector CN431 of main board.(9) Remove the three screws L attaching the video board (forEuropean model, two screws L see Fig. 8)(10) Remove the two screws M attaching the speaker terminalboard.(11) Remove the one screw N attaching the fuse board.(12) Remove the three screws P attaching the rear panel.Fig.6Fig.7Fig.8G FKJH L MCN481CN482CN421CN431CN441CN411Digital boardAudio boardSubwoofer boardTunerVideo boardK1-10 (No.MB504)3.1.4 Removing the main board (See Fig. 9)(1) Disconnect the connector CN471, CN472 and CN473 fromfront board.(2) Disconnect the connection board from CN291 of regulatorboard and CN491 of main board.(3) Remove the two screws Q and one screw R attaching themain board.Fig.93.1.5 Removing the front board and heat sink (See Fig. 10)(1) Disconnect the connector from CN203 and CN241 of reg-ulator board.(2) Disconnect the connector from CN251 of transformerboard.(3) Remove the four screws S attaching the heat sink.(4) Remove the one screw T attaching the front board.Fig.10CN491CN291RQCN471CN472Main boardRegulator boardConnectionboardCN473CN241CN203CN251Trans boardRegulatorboardFront boardHeat sinkTSS