Yamaha-HTR5920-avr-sm 维修电路原理图.pdf

SERVICE MANUAL101001IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are alreadyknown and understood by the users, and have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise all YAMAHA product owners that any service required should be performed by an authorizedYAMAHA Retailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, andservice departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitableand specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, pleasecontact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.I CONTENTSTO SERVICE PERSONNEL . 2FRONT PANEL . 2REAR PANEL . 3REMOTE CONTROL PANEL . 3SPECIFICATIONS. 46INTERNAL VIEW . 6DISASSEMBLY PROCEDURES . 79MAINTENANCE FLOW CHART. 1017DISPLAY DATA . 1819IC DATA . 2022PIN CONNECTION DIAGRAMS. 2324BLOCK DIAGRAM. 25PRINTED CIRCUIT BOARDS. 2630SCHEMATIC DIAGRAMS. 3134REPLACEMENT PARTS LIST . 3537REMOTE CONTROL. 38DIGITAL HOME THEATER SYSTEM YHT-170AV RECEIVERHTR-5920P.O.Box 1, Hamamatsu, Japan 2006 All rights reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission.HTR-5920YHT-170 consists of the HTR-5920 and the NS-P170.This service manual is for the HTR-5920.For the NS-P170 service manual, please refer to the following publication number:NS-P170 101002 06.03RadioFans.CN 收音机爱 好者资料库HTR-59202HTR-5920WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEI TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked s andmust be replaced with parts having specifications equal to thoseoriginally installed.2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohms shuntedby 0.15F.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (andpossibly other entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands beforehandling food.I FRONT PANELU, C modelsRadioFans.CN 收音机爱 好者资料库HTR-59203HTR-5920I REAR PANELU, C modelsI REMOTE CONTROL PANELHTR-59204HTR-5920151 (5-15/16)130 (5-1/8)270 (10-5/8)21(13/16)21(13/16)12(1/2)303 (11-15/16) 435 (17-1/8) mm (inch)Unit :I Audio SectionMinimum RMS Output Power Per Channel for FRONT,CENTER and SURROUND1 kHz, 0.1 % THD, 6 ohms . 80 W1 kHz, 10 % THD, 6 ohms . 110 WFrequency ResponseCD, etc. to FRONT L/R .10 Hz to 100 kHz, -3 dBTotal Harmonic Distortion1 kHz, CD, etc. to FRONT L/R. 0.1 %Signal to Noise Ratio (IHF-A network)CD, etc. to FRONT L/R, effect off . 99 dBResidual Noise (IHF-A network). 150 VChannel Separation (1 kHz / 10 kHz)CD, etc. (5.1 k-ohms terminated) to FRONT L/R.60 dB/45 dB or moreTone Control Characteristics (FRONT L/R)BASSBoost/cut .10 dB (100 Hz)TREBLEBoost/cut . 10 dB (10 kHz)Phones Output.400 mV/470 ohmsInput Sensitivity / Input ImpedanceCD, etc . . 200 mV/47 k-ohmsOutput Level / Output Impedance REC OUT .200 mV/1.2 k-ohmsI Video SectionVideo Signal Type.NTSCComponent Signal Level.1 Vp-p/75 ohmsSignal to Noise Ratio. 50 dB or moreFrequency Response (Monitor out)Composite .5 Hz to 10 MHz, -3 dBComponent .5 Hz to 60 MHz, -3 dBI FM SectionTuning Range.87.5 to 107.9 MHz50dB Quieting Sensitivity (IHF, 100% mod.)Mono. 30 dBfSignal to Noise Ratio (IHF)Mono/stereo . 73 dB/70 dBHarmonic Distortion(1 kHz)Mono/stereo .0.5 %/0.8 %Antenna Input.75 ohms unbalancedI AM SectionTuning Range.530 to 1,710 kHzAntenna. Loop antennaI GeneralPower SupplyU, C models. AC 120 V, 60 HzPower ConsumptionU, C models. 220 W/240 VAStandby Power ConsumptionU, C models. 1 WDimensions (W x H x D).435 x 151 x 303 mm (17-1/8 x 5-15/16 x 11-15/16)Weight. 8.0 kg (17 lbs. 10 oz.)FinishSilver color. U, C modelsAccessoriesRemote control x 1, Batteries (Size AA, R06, UM-3) x2, AM loop antenna x 1, Indoor FM antenna x 1* Specifications are subject to change without notice dueto product improvements.U . U.S.A. modelC . Canada modelManufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic”, and the double-D symbol aretrademarks of Dolby Laboratories.“DTS”, and “DTS Digital Surround” are registeredtrademarks of Digital Theater Systems, Inc.I SPECIFICATIONSDIMENSIONSHTR-59205HTR-5920SET MENU TABLEMAIN MENUSELECT MENUVALUE INITIAL1234FRONT LCENTERFRONT RSURROUND RSURROUND LSUBWOOFERFRONTCENTERSURROUNDSUBWOOFERFRONTCENTERSURROUND-10 dB to +10 dB, 0 dB, 1 dB stepLRG, SML, NONEYES, NONE1 ft to 30 ft, 10 ft, 1 ft step-2, -1, 0SPEAKER LEVELSPEAKER SETSPEAKER DISTANCEDIMMERSURROUND MODEMAIN MENUSELECT MENUVALUE INITIALPANORAMADIMENSIONCT WIDTHON, OFF-3 to 3, STD, 1 step0 to 7, 3, 1 stepPLII MUSICRESETTING THE SYSTEMUse this feature to reset all the parameters of this unit to the initial factory settings.Note:Be sure this unit is in standby mode.This procedure completely resets all the parameters of this unit.The initial factory settings are activated next time you turn on this unit.1. With this unit in standby mode, hold down TONE CONTROL key on the front panel and press STANDBY/ON key.RESET NO appears in the front panel display.Note: To cancel the initialization procedure without making any changes, press STANDBY/ON key.2. Press TONE CONTROL key to select RESET YES.3. Press STANDBY/ON key to confirm your selection and set this unit to the standby mode.HTR-59206HTR-5920AMP (2) P.C.B.AMP (3) P.C.B. POWER TRANSFORMERAMP (7) P.C.B.AMP (1) P.C.B. INPUT P.C.B.AMP (4) P.C.B.AMP (5) P.C.B.AMP (6) P.C.B.FRONT (3) P.C.B.FRONT (2) P.C.B.FRONT (1) P.C.B.0BA1254637891234567890ABTurn on the power while pressing these keys.Keys of main unitI INTERNAL VIEWFIRMWARE VERSION (Microprocessor information)To display the firmware version, do the following procedure.1. Press the STANDBY/ON key while simultaneously pressing those two keys of the main unit as indicated in thefigure below.2.* Numeric values in the figure example are for reference.3. Press STANDBY/ON key.060105-01HTR-59207HTR-59202114333Ground leadGround leadCN83CN96Front Panel UnitCN11Top CoverI DISASSEMBLY PROCEDURESFig. 1(Remove parts in the order as numbered.)Disconnect the power cable from the AC outlet.1. Removal of Top Covera. Remove 6 screws (1) and 7 screws (2) (Fig. 1)b. Slide the Top Cover rearward to remove it. (Fig. 1)2. Removal of Front Panel Unita. Remove CN11, CN83, CN96. (Fig. 1)b. Remove 5 screws (3) and 5 screws (4). (Fig. 1)c. Release a hook on the right side of the Front PanelUnit, then remove the Front Panel Unit forward. (Fig. 1)HTR-59208HTR-592056778CN12TUNERRear PanelCord StopperFig. 3Fig. 43. Removal of Rear Panel and Tunera. Remove CN12. (Fig. 2)b. Remove 2 screws (5). (Fig. 3)c. Remove Tuner. (Fig. 2)d. Remove 15 screws (6). (Fig. 3)e. Remove 2 screws (7). (Fig. 3)f. Remove 6 screws (8). (Fig. 4)g. Remove Cord Stopper. (Fig. 2)h. Remove Rear Panel. (Fig. 2)Fig. 2HTR-59209HTR-592090INPUT P.C.B.AMP (4) P.C.B.Note:When assembling the AMP (4) P.C.B., be careful not to bend the pin of the connectors (BN92 and BN94). Note:When assembling the AMP (4) P.C.B., be careful not to bend the pin of the connectors (CN13 and CN14). Heat SinkAMP (1) P.C.B.CN95CN93CN91CN90BBAC4. Removal of INPUT and AMP (4) P.C.B.sa. Remove 1 screw (9) and 2 screws (0). (Fig. 5)b. Remove INPUT and AMP (4) P.C.B.s. (Fig. 5)Fig. 55. Removal of AMP (1) P.C.B.a. Remove 2 screw (A) 5 screws (B) and 3 screw (C).(Fig. 6)b. Remove CN90, CN91, CN93 and CN95. (Fig. 6)c. Remove AMP (1) P.C.B. with Heat Sink.Fig. 6HTR-592010HTR-5920I MAINTENANCE FLOW CHARTNONONOYES YES YES YES YES YES YES Power onIs FL displayturns on?Are all keyson front panelwork well?Is connectionof cablecorrect?Are voltagesof BN82 (pin 1to 4) correct?Check connectionof cableNONONONOCheck power supplyof BN82Check and replaceIC81Checkpower supply partCheck KEY IN part(S851-854, S858-863,S865-871)Are waveformsof IC81 (pin 34 to 67)correct?Check and replaceFL displayAre input portsof IC81 (pin76 to 78)work correct?Check and replace IC81StartIs power voltageof each boardcorrect?AFRONT P.C.B. 1/3FRONT P.C.B.HTR-592011HTR-5920NONONONONONONOIs volumework well?Is output ofPhonescorrect?Are inputs ofIC81 (pin 71 and 72)correct?Checkpower supply partCheck and replaceVR82Checkpower supply partCheck connectionof cableCheck circuit patternCheck and replace IC81Is implementationof VR82correct?Is power voltageof each boardcorrect?ABIs power voltageof each boardcorrect?Are connectionsof CN96 and BN73-2correct?Check and replace JK81YES YES YES YES YES YES YES FRONT P.C.B. 2/3HTR-592012HTR-5920Is workof remote control?Is waveformof RC81correct?Check and replace IC81Is power voltageof RC81 correct?Is power voltageof each boardcorrect?FRONT P.C.B. is O.K.NONONOCheckpower supply partCheckpower supply partCheck and replaceRC81NOBYES YES YES YES FRONT P.C.B. 3/3HTR-592013HTR-5920Is Input selector of IC21correct?Are outputs of VCR,MD/CD-Rcorrect?Check connections forBN14 and AMP boardCheck connections forCN11 and FRONT boardCheck and replace IC21Analog part is O.K.Check and replaceIC21NONONOYES YES YES YES YES Power onNONOCheck and replace IC81and JK12StartAre powervoltages of IC22 andIC23 correct?Arewaveforms ofIC21 (pin 67 to 69)correct?Arewaveforms ofIC21 (pin 76 to 79)correct?INPUT P.C.B. 1/3(Analog part)INPUT P.C.B.HTR-592014HTR-5920Is recognitionof digital sourcecorrect?Are inputwaveforms of IC32(pin 57 and 59)correct?Arewaveformsof IC32 (pin 14 to 20)correct?Check connections forexternal deviceCheck power supplypart and crystaloscillation partArepower voltageand oscillation ofIC32 correct?Arewaveformsof IC31 (pin 39 to 41)correct?Arewaveformsof IC32 (pin 39 to 50)correct?Arewaveforms ofIC31 (pin 6, 7 and 18)correct?NONOYES YES YES YES YES YES Power onNONOCheck and replaceIC32NOCheck and replaceIC32NOCheck and replaceIC32NOCheck and replaceIC32Check analog partStartYES CDINPUT P.C.B. 2/3(Digital part)HTR-592015HTR-5920Is outputcorrect, whenanalog inputArewaveforms ofIC32 (pin 51 and 52)correct?Arepower voltage andground of IC32correct?Digital part is O.K.Check power supplypart NOYES YES YES NONOCheck and replaceIC32CDINPUT P.C.B. 3/3(Digital part)HTR-592016HTR-5920Does protectcircuit work?Is connection ofall cable correct?Check voltagesCN94 pin 2 : lowCN96 pin 5 : 1.5VCheck Protect circuitand power supply partCheck and replacespeaker relay (RY62-64)Isimplementationof speaker relaycorrect?Are powervoltages of IC91to 93 correct?Is input powervoltage (AC) of D901correct?Is output powervoltage (DC) of D901correct?Check connections ofcableCheck Front BoardCheck PowertransformerNONOYES YES YES YES Power onNONOCheck and replaceD901NOCheck IC91 to 93StartYES NOEAMP P.C.B. 1/2AMP P.C.B.HTR-592017HTR-5920AMP P.C.B. 2/2NOYESIs outputaudio correct?Check connections ofspeaker cableAMP board is O.K.EHTR-592018HTR-5920I DISPLAY DATA1G2G3G4G5G6G7G8G9GDp(11G)(2G-10G)s1s2s1s3s4s310G11GNote : 1) F+, - . Filament Pin 2) NP . No pin 3) NX . No extended pin 4) nG . Grid Pin 5) Pn . Anode PinPin No.ConnectionPin No.1F-2NXNXNX3NP4NP51G2G 3G 4G 5G6G 7G 8G 9G10G11G6789 10 11 12 13 14 15 16 17 18P2119P2020P1921P1822P1723P1624P1525P1426P1327P1228P1129P1030P931P832P733P636P337P238P139 40 41 42F+NXNPNP34P535P4ConnectionG HNA-11SM66T G PIN CONNECTIONG GRID ASSIGNMENTPATTERN AREA1ba1a2d1d2bmcfhkrnjpgeHTR-592019HTR-5920P11G2G3G4G5G6G7G8G9G10G11GP2P3P4P5P6P7P8P9P10P11P12P13P14P15P16P17P18fa1a2hjkbmgerpncd1d2fa1a2hjkbmgerpncd1d2fa1a2hjkbmgerpncd1d2fa1a2hjkbmgerpncd1d2fa1a2hjkbmgerpncd1d2fa1a2hjkbmgerpncd1d2fa1a2hjkbmgerpncd1d2fa1a2hjkbmgerpncd1d2Dpfa1a2hjkbms3ges1s2s4rpncd1d2P19P20P21G ANODE CONNECTIONHTR-592020HTR-5920I IC DATAIC81: TMP87PS71AF (FRONT P.C.B.)MicroprocessorP96 (S14)P95 (S13)P94 (S12)P93 (S11)P92 (S10)P91 (S9)P90 (S8)P87 (S7)P86 (S6)P85 (S5)P84 (S4)P83 (S3)P82 (S2)P81 (S1)P80 (S0)P77 (G0)P76 (G1)P75 (G2)P74 (G3)(SIS) P97123456789 10 11 12 1314 15 16 17 18 19 20 21 22 23 245556575859606162636454 53 5251 50 49 48 47 46 45 44 43 42 414039383736353433323130292827262565666768697071727374757677787980VKK(KEY0) P40(KEY1) P41(KEY2) P42(KEY3) P43(KEY4) P44(KEY5) P45(CIN5/KEY6) P46(CIN4/KEY7) P47(CIN3) P50(CIN2) P51(CIN1) P52(CIN0) P53P54(PWM/PDO) P55P73 (G4)P72 (G5)P71 (G6)P70 (G7)P67 (G8)(INT0) P10(INT1) P11(INT2/TC1) P12(DVO) P13P14(TC2) P15P16P17TEST(XTIN) P21(XTIN) P22RESETXINXOUTVSS(INTS/STOP) P20(INT3/TC3) P30(TC4) P31(SCK) P32(SI) P33(SO) P34(HSCK) P35P36(HSO) P37P66 (G9)P65 (G10)P64 (G11)P63 (G12)P62 (G13)P61 (G14)P60 (G15)VDDP07P06P05P04P03P02P01P00VDDP9VFT drive circuit (automatic display)Key scancontrolProgram counterRegister banksStack PointerP S WInterrupt ControllerSystem ControllerStandby ControllerTiming GeneratorHighfrequ.Lowfrequ.ClockGeneratorTime BaseTimer16-bitTimer/CountersTC1TC2TC3TC4SIOHSO8-bitTimer/CountersSerialInterfaces6-bitComparatorP4P47toP40P5P55toP50P3P37toP30P1P17toP10P0P07toP00P2P22toP20Inst.RegisterInst.DecoderWatchdogTimerFlagsALURBSProgram Memory(ROM)Data Memory(RAM)I/O PortsP97toP90P8Output PortsP87toP80P7I/O PortsP77toP70P6P67toP60Power SupplyVFT PowerSupplyReset I/OTest PinResonatorconnectingPinsVSSVKKRESETTESTXINXOUTI/O PortsHTR-592021HTR-5920No.PORT ASSIGNMENTPORT NAMEDESCRIPTIONI/O