Yamaha-RXV520RDS-avr-sm(1) 维修电路原理图.pdf

《Yamaha-RXV520RDS-avr-sm(1) 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Yamaha-RXV520RDS-avr-sm(1) 维修电路原理图.pdf（66页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUALAV RECEIVERRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS100755IMPORTANT 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

2、, 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.

3、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 orr

4、ecognition 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 impr

5、ove 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. Discharg

6、e 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.P.O.Box 1, Hamamatsu, Ja

7、panI CONTENTSTO SERVICE PERSONNEL . 1IMPEDANCE SELECTOR . 1FRONT PANELS. 2REAR PANELS . 34SPECIFICATIONS. 5INTERNAL VIEW . 6DISASSEMBLY PROCEDURES . 7SELF DIAGNOSIS FUNCTION (DIAG) . 824AMP ADJUSTMENTS. 24DISPLAY DATA . 2526IC DATA . 2732BLOCK DIAGRAM. 3336PRINTED CIRCUIT BOARD . 3752IC BLOCK DIAGRA

8、M . 5354SCHEMATIC DIAGRAM . 5558PARTS LIST . 5973REMOTE CONTROL TRANSMITTER . 7476SURROUNDD I G I TA LSILENTVIDEO AUXPHONESS VIDEOVIDEOL AUDIO ROPTICAL6CH INPUTINPUT MODEINPUTVOLUMERDS MODE/FREQEONPTY SEEKMODESTARTTUNINGMODEPRESET/TUNINGFM/AMMEMORYEDITBASSBALANCESPEAKERSPROGRAMPRESET/TUNINGEFFECTA/B

9、/C/D/EABOFFONSTANDBY/OND I G I T A L+LRTREBLE+MANL/AUTO FMAUTO/MANL MONORX-V520RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRadioFans.CN 收音机爱 好者资料库RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS435 (17-1/8)Unit : mm (inch)151 (5-15/16)130 (5-1/8)352.5 (13-7/8)21(13/16)16(

10、5/8)21.3 (13/16)389.8 (15-3/8)1WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic(where applicable) components may also con

11、tain traces of chemicals found by the California Health and Welfare Agency(and possibly 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, unprotect

12、ed 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 TO SERVICE PERSONNEL1. Critical Components Infor

13、mationComponents having special characteristics are marked sand must be replaced with parts having specifications equalto those originally installed.2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces ar

14、e properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohm shuntedby 0.15F.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.I IMPEDANCE SELECTORIMPEDANCE SELECTORWARNING:Do not change the IMPEDANCE SELECTOR switch

15、 setting while the power to this unit is on, otherwise this unit may be damaged. DIMENSIONSRadioFans.CN 收音机爱 好者资料库RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSI FRONT PANELSRX-V520 (U, C, A, L, R, T models)SURROUNDD I G I TA LSILENTVIDEO AUXPHONESS VIDEOVIDEOL AUDIO

16、ROPTICAL6CH INPUTINPUT MODEINPUTVOLUMETUNINGMODEPRESET/TUNINGFM/AMMEMORYEDITBASSBALANCESPEAKERSPROGRAMPRESET/TUNINGEFFECTA/B/C/D/EABOFFONSTANDBY/OND I G I T A L+LRTREBLE+MANL/AUTO FMAUTO/MANL MONORX-V520RX-V520RDS (B, G models)SURROUNDD I G I TA LSILENTVIDEO AUXPHONESS VIDEOVIDEOL AUDIO ROPTICAL6CH

17、INPUTINPUT MODEINPUTVOLUMERDS MODE/FREQEONPTY SEEKMODESTARTTUNINGMODEPRESET/TUNINGFM/AMMEMORYEDITBASSBALANCESPEAKERSPROGRAMPRESET/TUNINGEFFECTA/B/C/D/EABOFFONSTANDBY/OND I G I T A L+LRTREBLE+MANL/AUTO FMAUTO/MANL MONORX-V520RDSHTR-5450 (U, C, A, R, T models)SURROUNDD I G I TA LSILENTVIDEO AUXPHONESS

18、 VIDEOVIDEOL AUDIO ROPTICAL6CH INPUTINPUT MODEINPUTVOLUMETUNINGMODEPRESET/TUNINGFM/AMMEMORYEDITBASSBALANCESPEAKERSPROGRAMPRESET/TUNINGEFFECTA/B/C/D/EABOFFONSTANDBY/OND I G I T A L+LRTREBLE+MANL/AUTO FMAUTO/MANL MONOHTR-5450HTR-5450RDS (G model)SURROUNDD I G I TA LSILENTVIDEO AUXPHONESS VIDEOVIDEOL A

19、UDIO ROPTICAL6CH INPUTINPUT MODEINPUTVOLUMERDS MODE/FREQEONPTY SEEKMODESTARTTUNINGMODEPRESET/TUNINGFM/AMMEMORYEDITBASSBALANCESPEAKERSPROGRAMPRESET/TUNINGEFFECTA/B/C/D/EABOFFONSTANDBY/OND I G I T A L+LRTREBLE+MANL/AUTO FMAUTO/MANL MONOHTR-5450RDS2RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520

20、RDS/HTR-5450/HTR-5450RDSI REAR PANELSU modelC modelA modelB model3RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS4G modelL modelR, T modelRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS5I SPECIFICATIONSI Audio SectionMinimum RMS Output Po

21、wer (Power Amp. Section)(20 Hz to 20 kHz, 0.06% THD, 8 ohms)MAIN U, C models .80W + 80W A, B, G, L, R, T models.70W + 70WCENTER U, C models . 80W A, B, G, L, R, T models. 70WREAR U, C models .80W + 80W A, B, G, L, R, T models.70W + 70WMaximum Power (EIAJ) R, T models(1 kHz, 10% THD, 8 ohms)MAIN .100

22、W + 100WCENTER. 100WREAR .100W + 100WDynamic Power Per Channel (IHF)MAIN L/R (8/6/4/2 ohms)U model . 105/125/145/165 WC, A, B, G, L, R, T models . 95/115/135/155 WDIN Standard Output Power Per ChannelMAIN L/R (1 kHz, 0.7% THD, 4 ohms)G model.105W + 105WDynamic Headroom8 ohmsU, C models . 1.18 dBIEC

23、PowerMAIN L/R (1 kHz, 0.06% THD, 8 ohms)G model.75W + 75WDamping FactorMAIN L/R (20 Hz to 20 kHz, 8 ohms) . 60 or moreInput Sensitivity / Input ImpedanceCD, etc. . 150 mV / 47 k-ohmsEXT. DECODERMAIN L/R. 150 mV / 47 k-ohmsCENTER, SURROUND L/R, SUBWOOFER .150 mV / 40 k-ohmsMaximum Input Signal LevelC

24、D, etc. (1 kHz, 0.5% THD, Effect On) . 2.2 VOutput Level / Output ImpedanceREC OUT . 150 mV / 1.2 k-ohmsSUB WOOFERMAIN SP: Small . 4 V/1.2 k-ohmsHeadphone Jack Rated Output / Impedance1 kHz, 150 mV, 8 ohms . 0.49 V / 390 ohmsFrequency ResponseCD, etc. to MAIN (20 Hz to 20 kHz) . 0 0.5 dBTotal Harmon

25、ic Distortion(20 Hz to 20 kHz, 35 W / 8 ohms)CD, etc. (EFFECT OFF) to MAIN SP OUT .0.025% or lessSignal to Noise Ratio (IHF-A network)CD, etc. (Input shorted, Effect Off) to MAIN SP OUT150 mV .96 dB or more250 mV .100 dB or moreResidual Noise (IHF-A netwok)MAIN L/R SP OUT . 150 V or lessChannnel Sep

26、aration(Vol -30 dB, Effect Off)CD, etc. (Input 5.1 k-ohms terminated, 1 kHz) .60 dB or moreCD, etc. (Input 5.1 k-ohms terminated, 10 kHz) .45 dB or moreTone Control CharacteristicsBass:Boost/Cut . 10 dB (50 Hz)Turnover Frequency . 350 HzTreble: Boost/Cut . 10 dB (20 kHz)Turnover Frequency . 3.5 kHzF

27、ilter CharacteristicsMAIN, Rear SP Small (H.P.F.) .90 Hz, 12 dB/oct.SUBWOOFER (L.P.F.) .90 Hz, 18 dB/oct.I Video SectionVideo Signal TypeU, C, R, T models . NTSCA, B, G, L, models. PALVideo Signal Level. 1 Vp-p / 75 ohmsS-Video Signal LevelY . 1 Vp-p / 75 ohmsC .0.286 Vp-p / 75 ohmsMaximum Input Lev

28、el. 1.5 Vp-pSignal to Noise Ratio.50 dB or moreMonitor Out Frequency ResponseS-Video Signal Level .5 Hz to 10 MHz, -3 dBI FM SectionTuning RangeU, C models . 87.5 to 107.9 MHzA, B, G, L models. 87.5 to 108.0 MHzR, T models. 87.5 to 108.0 / 87.50 to 108.00 MHz50 dB Quieting Sensitivity (IHF)(100% Mod

29、)Mono . 2.0 V (17.3 dBf)Stereo . 25 V (39.2 dBf)Usable Sensitivity (IHF)Mono . 1.0 V (11.2 dBf)Selectivityat 400 kHz . 70 dBSignal to Noise Ratio (IHF)Mono / Stereo .76 dB / 70 dBHarmonic Distortion(1 kHz)Mono/Stereo. 0.2 / 0.3 %Stereo Separation1 kHz . 45 dBFrequency Response20 Hz to 15 kHz .+0.5 /

30、 -2 dBAntenna Input. 75 ohms unbalancedI AM SectionTuning RangeU, C models . 530 to 1,710 kHzA, B, G, L models. 531 to 1,611 kHzR, T models. 530 to 1,710 / 531 to 1,611 kHzUsable Sensitivity. 300 V/mAntenna. Loop AntennaI GeneralPower SupplyU, C models .AC 120 V, 60 HzR, T models. AC 110/120/220/240

31、 V, 50/60 HzA model .AC 240 V, 50 HzB, G, L models .AC 230 V, 50 HzPower ConsumptionU model . 240 WC model . 250 W / 320 VAR, T, A, B, G, L models. 250 WMaximum Power Consumption(5ch Drive, 10% THD)R model . 500 WAC Outlets2 switched outlets U, C, G, L models . 100W max., total R, T models. 50W max.

32、, total1 switched outlet A, B models. 100W max.Dimensions (W x H x D). 435 x 151 x 390 mm (17-1/8 x 5-15/16 x 15-3/8)Weight. 10.0 kg (22 lbs. 1 oz.)AccessoriesRemote control transmitter, Manganese batteries, Indoor FMantenna, AM loop antenna* Specifications are subject to change without notice due t

33、o productimprovements.U . U.S.A. modelC . Canadian modelA . Australian modelB . British modelG . European modelL. Singapore modelR . General modelT. China modelManufactured under license from Dolby Laboratories. Dolby, AC-3, Pro Logic, and the double-D symbol are trademarks of DolbyLaboratories. 199

34、2-1997 Dolby Laboratories. All rights reserved.Manufactured under license from Digital Theater Systems, Inc. USPat. No. 5,451,942 and other world-wide patents issued and pending.DTS, DTS Digital Surround, are trademarks of Digital TheaterSystems, Inc. copyright 1996 Digital Theater Systems, inc. All

35、 rightsreserved.RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS6No.SET MENUPRESET VALUESETTING RANGES1.SPEAKER SET1ACENTER SPEAKERLARGELARGE/SMALL/NONE1BMAIN SPEAKERLARGELARGE/SMALL1CREAR L/R SPEAKERLARGELARGE/SMALL/NONE1DLFE/BASS OUTBOTHSUBWOOFER/MAIN/BOTH1EMAIN LEVEL

36、NORMALNORMAL/10dB2.HP TONE CTRLBASS : 0dB6dB +3dB (1dB step)TREBLE : 0dB6dB +3dB3.I/O ASSIGNING3AOPTICAL OUT(1) : MD/CD-RDVD, MD/CD-R, D-TV/CBL, VCR, V-AUX, AUX, CD3BOPTICAL IN(2) : MD/CD-RCD, MD/CD-R, DVD, D-TV/CBL, VCR, AUX(3) : DVDCD, DVD, D-TV/CBL, VCR, AUX(4) : D-TV/CBLCD, D-TV/CBL, VCR, AUX3CC

37、OAXIAL IN(5) : CDCD, MD/CD-R, DVD, D-TV/CBL, VCR, V-AUX, AUX4.INPUT MODEDVD : AUTOAUTO/LAST5.DOLBY DIGITAL SET5ALFE LEVELSPEAKER : 0dB20dB 0dB5BDYNAMIC RANGESPEAKER : MAXMAX/STD/MIN6.DTS SETLFE LEVELSPEAKER : 0dB10dB +10dB7.SPEAKER DELAY TIMECENTER : 0ms0ms 5ms (1ms step)8.DISPLAY SETDIMMER : 04 09.

38、MEMORY GUARDOFFON/OFF Set Menu TableI INTERNAL VIEW1 MAIN (2) P.C.B.2 MAIN (7) P.C.B.3 MAIN (5) P.C.B.4 MAIN (8) P.C.B.5 MAIN (4) P.C.B.6 INPUT (3) P.C.B.7 INPUT (2) P.C.B.8 INPUT (6) P.C.B.9 DSP P.C.B.0 OPERATION (4) P.C.B.A INPUT (1) P.C.B.B OPERATION (3) P.C.B.C INPUT (4) P.C.B.D MAIN (1) P.C.B.E

39、 MAIN (6) P.C.B.F INPUT (5) P.C.B.G OPERATION (8) P.C.B.H OPERATION (7) P.C.B.I OPERATION (6) P.C.B.J OPERATION (1) P.C.B.K OPERATION (2) P.C.B.YAMAHA1 2 3 456 789GFEDCBA 0HIJKRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSClothRubber sheetMAIN (1) P.C.B.7I DISASSEMBLY

40、 PROCEDURES (Remove parts in the order as numbered.)Disconnect the power cord from the AC outlet.1. Removal of Top Cover (Fig. 1)a. Remove 4 screws (1) and 4 screws (2).b. Slide the Top Cover rearward to remove it.2. Removal of Front Panel (Fig. 1)a. Remove the VOLUME control knob.b. Remove 8 screws

41、 (3) and 1 screw (4).c. Remove the Front Panel forward while releasing 2claws at the bottom.3. Removal of Sub Chassis (Fig. 1)Remove 4 screws (5) and then remove the SubChassis forward.4. Removal of DSP P.C.B. (Fig. 2)a. Remove 6 screws (6) and 5 screws (7).b. Remove the DSP P.C.B. upward together w

42、ith theShield Case.5. Removal of MAIN (4) P.C.B. (Fig. 2)Remove 2 screws (8). The Main (4) P.C.B. can then beremoved.6. Removal of MAIN (1) P.C.B.a. Remove 5 screws (7), 2 screws (8), 2 screws (9) and11 screws (0). (Fig. 2)b. Remove 2 screws (A) and 1 screw (B). (Fig. 3)c. To check the MAIN (1) P.C.

43、B., spread a rubber sheetand a cloth over it. Then place the MAIN (1) P.C.B.upside down on the cloth for checking it. (Fig. 4)Fig. 1Fig. 3Fig. 2Top CoverSub ChassisFront panel112343555ClawMAIN (4) P.C.B.Sheild case(DSP P.C.B.)66670000089MAIN (1) P.C.B.ABFig. 4Note:When DSP P.C.B., MAIN (4) P.C.B. an

44、d MAIN (1)P.C.B. have been removed from the chassis, theground connection becomes open. Connect the groundof each P.C.B. to the chassis by using a lead wire.RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDSRX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS8I SELF DIAGNOSIS FUNCTION (DIAG)There are 14 DIAG menu items eac

45、h of which has sub-menu items. Listed in the table below are menu items and sub-menuitems.No DIAG menusub-menuRemote control code (key)1DSP THROUGH1. ANALOG BYPASS7A-88 (PRG 1)2. M, C, R, SW CH7A-89 (PRG 2)3. Main HPF7A-8A (PRG 3)4. FULL BIT5. FULL BIT F2FRONT CH1. FRONT NORMAL7A-8B (PRG 4)2. FRONT

46、MIX7A-8C (PRG 5)3RAM THROUGHRAM 0dB (2ch/Multi)7A-10 (PRESET+)4PRO LOGICYSS9287A-8D (PRG 6)5MARGIN CHECK1. MAIN 3dB Margin7A-11 (PRESET-)2. MAIN 12dB Margin7A-12 (P. PAGE)3. MAIN 18dB Margin7A-0C (CD FW)6MAIN MIX1. CENTER - MAIN7A-00 (TAPE PLAY)2. SW - MAIN7A-8E (PRG 7)7OTHER INPUTEXTERNAL DECODER7A

47、-8F (PRG 8)8DISPLAY CHECK1. VFD DISP OFF (All segments OFF)7A-01 (TAPE RW)2. VFD DISP ALL (All segments ON 100%)7A-02 (TAPE FW)3. VFD DIMMER (All segments ON 50%)4. CHECKED PATTERN1 (ON in lattice)7A-03 (TAPE STOP)5. CHECKED PATTERN2 (ON in lattice)9MANUAL TEST1. TEST ALL7A-90 (PRG 9)2. TEST MAIN L7

48、A-04 (TAPE PAUSE)3. TEST CENTER7A-05 (TAPE MUTE)4. TEST MAIN R7A-06 (TAPE A/B)5. TEST REAR R7A-07 (TAPE DIR A)6. TEST REAR L7A-08 (CD PLAY)7. TEST LFE7A-09 (CD STOP)10PRESET1. PRESET INHIBIT (memory initialization inhibited)2. PRESET RESERVED (memory initialized)7A-57 (SLEEP)11AD DATA CHECK1. DC/PS

49、(protection)7A-0B (CD SKIP-)2. IMP/PL (impedance/power limiter)3. 0/1/2 (panel key)12IF STATUS1. IST (internal status)2. CS1 (channel status 1)3. CS2 (channel status 2)4. CS3 (channel status 3)5. CS4 (channel status 4)6. CS5 (channel status 5)7. BI1 (BSI-DD 1)8. BI2 (BSI-DD 2)9. BI3 (BSI-DD 3)10. BI

50、4 (BSI-DD 4)11. BS1 (BSI-DTS 1)12. BS2 (BSI-DTS 2)13. BS3 (BSI-DTS 3)14. BS4 (BSI-DTS 4)15. YS1 (YSS928-1)16. YS2 (YSS928-2)17. YS3 (YSS928-3)13DSP RAM CHECKBUS CHECK7A-0A (CD SKIP+)14VERSION/CHECK SUM/PORT1. VER. (Version information)7A-0D (CD REW)2. 1/2 (Checksum 1/2)3. PORT (Port check)RX-V520/RX