JVC-RXES9SL-hccc-sm 维修电路原理图.pdf

SERVICE MANUALCOPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITEDNo.MB1272003/12HOME CINEMA CONTROL CENTERMB127200312RX-ES9SLTABLE OF CONTENTS1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-125TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13Area SuffixB - U.K.E - Continental EuropeEN - Northern EuropeRadioFans.CN 收音机爱 好者资料库1-2 (No.MB127)SPECIFICATIONDesigns & specifications are subject to change without noticeAmplifierOutput PowerAt stereo operationFront channels100 W per channel, min. RMS, both channels driven into 8 at 1 kHz with no more than 10%total harmonic distortion. IEC268-3)At surround operationFront channels100 W per channel, min. RMS, driven into 8 at 1 kHz with no more than 0.8% total harmonicdistortion.Center channel100 W, min. RMS, driven into 8 at 1 kHz, with no more than 0.8% total harmonic distortion.Surroundchannels100 W per channel, min. RMS, driven into 8 at 1 kHz, with no more than 0.8% total harmonicdistortion.AudioAudio Input Sensitivity/Impedance (1 kHz)DVD, DVD MULTI, STB, VR, TV : 260 mV/47 kAudio Input (DIGITAL IN)* CoaxialDIGITAL 1 (VR) : 0.5 V(p-p)/75 OpticalDIGITAL 2/3 (STB/DVD) : -21 dBm to -15 dBm (660 nm 30 nm)* Corresponding to Linear PCM, Dolby Digital, and DTS Digital Surround (with sampling frequency -32 kHz, 44.1 kHz, 48 kHz).Audio Output LevelVR, TV : 250 mVSignal-to-Noise Ratio (66 IHF/DIN)DVD MULTI : 87 dB/62 dBFrequency Response (8 )DVD, STB, VR, TV : 20 Hz to 20 kHz (1 dB)Tone ControlBass (100 Hz) : 10 dB 2 dBTreble (10 kHz) : 10 dB 2 dBBass Boost+4 dB 1 dB at 100 HzVideoVideo Input Sensitivity/Impedance (1 kHz)Composite video : DVD, STB, VR, TV1 V(p-p)/75 S-VIDEO : DVD, STB, VR(Y: luminance) : 1 V(p-p)/75 (C: chrominance) : 0.286 V(p-p)/75 RGB : DVD, STB, VR0.7 V(p-p)/75 Video Output Level/Impedance (1 kHz)Composite video : VR, TV1 V(p-p)/75 S-VIDEO : TV(Y: luminance) : 1 V(p-p)/75 (C: chrominance) : 0.286 V(p-p)/75 RGB : TV0.7 V(p-p)/75 Signal-to-Noise Ratio (S/N)45 dBSynchronizeNegativeFM tuner (IHF)Tuning Range87.50 MHz to 108.00 MHzUsable SensitivityMonaural : 17.0 dBf (1.95 V/75 )50 dB Quieting SensitivityMonaural : 21.3 dBf (3.2 V/75 )Stereo : 41.3 dBf (31.5 V/75 )Stereo Separation at REC OUT 35 dB at 1 kHzAM (MW) tunerTuning RangeMW : 522 kHz to 1 629 kHzGeneralPower RequirementsAC 230 V, 50 HzPower Consumption105 W (at operation)2 W (in standby mode)Dimensions (W H D)435 mm 69.5 mm 330.5 mmMass6.6 kgRadioFans.CN 收音机爱 好者资料库(No.MB127)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 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.). 1.2Warning(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.MB127)1.5 Safety Precautions (U.K only)(1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For con-tinued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replace-ment parts must be identical to those used in the original circuits.(2) Any unauthorised design alterations or additions will void the manufacturers guarantee; furthermore the manufacturer cannotaccept responsibility for personal injury or property damage resulting therefrom.(3) Essential safety critical components are identified by ( ) on the Parts List and by shading on the schematics, and must neverbe replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts inthe product have special safety related characteristics. These characteristics are often not evident from visual inspection. Partsother than specified by the manufacturer may not have the same safety characteristics as the recommended replacement partsshown 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 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 isrequired, the original lead routing and dress should be observed, and it should be confirmed that they have been returned tonormal, after re-assembling.1.5.1Warning(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 ensure 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.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.(No.MB127)1-5SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.1-6 (No.MB127)SECTION 3DISASSEMBLY3.1Main body section3.1.1Removing the top cover(See Figs.1 and 2)(1) From the back side of the main body, remove the threescrews A attaching the top cover. (See Fig.1)(2) From the both sides of the main body, remove the fourscrews B attaching the top cover. (See Fig.1)(3) Remove the top cover by moving up the back part of the topcover and release the six joints a using a longer driver fromthe inside. (See Fig.2.)Note:Do not damage any part and board inside the main body whenreleasing the joints a using a longer driver.Fig.13.1.2Removing the front panel assembly(See Figs.2 to 4.) Prior to perform the following procedures, remove the top cov-er.(1) From the top side of the main body, cut the tie bands anddisconnect the wire from the connector CN451 on the mainboard. (See Fig.2.)(2) From the bottom side of the main body, remove the fourscrews C attaching the front panel assembly. (See Fig.3.)(3) From the both sides of the main body, release the joints band remove the front panel assembly in the direction of thearrow. (See Fig.4.)(4) From the top side of the main body, remove the screw D at-taching the earth wire on the DC power board. (See Fig.2.)References: After attaching the front panel assembly, bundling the wiresusing the new tie bands. When attaching the screw D, attach the earth wire with it.Fig.3Fig.2Fig.4ABx2Bx2Top coverCFront panel assemblyCN451Main boardFront panel assemblyJoints aTie bandsEarth wireDDC powerboardFront panel assemblyJoint b(No.MB127)1-73.1.3Removing the tuner(See Figs.5 and 6.) Prior to perform the following procedures, remove the top cov-er.(1) From the top side of the main body, disconnect the cardwire from the connector CN1 on the tuner. (See Fig.5.)(2) From the back side of the main body, remove the twoscrews E attaching the tuner to the rear panel. (See Fig.6.)Fig.5Fig.63.1.4Removing the rear panel(See Fig.7) Prior to perform the following procedures, remove the top cover.(1) From the back side of the main body, remove strain relieffrom the rear panel in the direction of the arrow.(2) Remove the twenty screws F attaching the rear panel.Fig.73.1.5Removing the digital input board(See Fig.8) Prior to perform the following procedures, remove the top cov-er, tuner and rear panel.Reference: Remove the tuner as required.(1) From the top side of the main body, remove the connectorCN521 on the digital input board in an upward direction.(2) From the reverse side of the digital input board, disconnectthe card wire from the connector CN522 on the digital inputboard.Fig.8Card wireTunerCN1ERear panelFFRear panelStrain reliefDigital input boardCN522CN5211-8 (No.MB127)3.1.6Removing the digital output board(See Fig.9) Prior to perform the following procedures, remove the top cov-er, tuner, rear panel and digital input board.Reference: Remove the tuner as required.(1) Disconnect the card wires from the connectors CN513 andCN514 on the digital output board.(2) Remove the screw G attaching the digital output board.Fig.93.1.7Removing the AC power supply board(See Fig.10) Prior to perform the following procedures, remove the top cov-er and tuner.(1) From the top side of the main body, disconnect the powercord from the connector CN203 on the AC power supplyboard and remove it from the rear panel.(2) Cut the tie bands and disconnect the wire from the connec-tor CN218 on the DC power board.(3) Remove the three screws H attaching the AC power supplyboard.(4) Disconnect the wire from the connector CN202 on the ACpower supply board and remove the wire holders from thereverse side of the AC power supply board.Reference: When attaching the three screws H, attach the wire holderwith it.Fig.10Card wiresDigital output boardCN513CN514GCN202CN203DC power boardPower cordCN218AC power supply boardWire holderRear panel Tie bandsHHWireholderWireholder(No.MB127)1-93.1.82.1.8 Removing the power transformer(See Fig.11) Prior to perform the following procedures, remove the top cov-er and front panel assembly.(1) From the top side of main body, disconnect the wire fromthe connector CN202 on the AC power supply board.(2) Remove the strain relief holding the power cord and re-move the three screws H attaching the AC power supplyboard.(3) Lift the AC power supply board and remove the wire hold-ers from the reverse side of the AC power board.(4) Cut the tie band.(5) Disconnect the wire from the connector CN201 on the DCpower board.(6) Disconnect the wire from the connector CN702 on the rec-tifier board.(7) Remove the four screws J attaching the power transform-er.Reference: After attaching the front panel assembly, bundling the wiresusing the new tie bands.Fig.113.1.9Removing the fan motor(See Figs.12 and 13) Prior to perform the following procedures, remove the top cov-er.(1) From the top side of the main body, cut the tie bands anddisconnect the wire from the connector CN207 on the DCpower board. (See Fig.12.)(2) Remove the screw K and screw K attaching the fan as-sembly, then remove the fan assembly. (See Fig.12.)(3) Remove the two screws L attaching t