Yamaha-AX450-int-sm维修电路原理图.pdf

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1、SERVICE MANUAL 100884 IMPORTANT NOTICE This 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 already known and understood by the user

2、s, and have therefore not been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA pro

3、duct owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable technical

4、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, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications ar

5、e, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body

6、 may have accumulated 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, Japan I CONTENTS TO SERVICE PERSO

7、NNEL . 2 IMPEDANCE SELECTOR . 3 FRONT PANELS. 46 REAR PANELS . 715 REMOTE CONTROL PANELS. 16 SPECIFICATIONS / 参考仕様 . 1718 INTERNAL VIEW . 18 DISASSEMBLY PROCEDURES / 分解手順 . 1921 SELF DIAGNOSIS FUNCTION (DIAG) / 自己診断機能（）. 2242 AMP ADJUSTMENT / 部調整 . 43 IC DATA . 4449 BLOCK DIAGRAM. 5051 DISPLAY DATA

8、. 52 PRINTED CIRCUIT BOARD . 5373 PIN CONNECTION DIAGRAM . 74 SCHEMATIC DIAGRAM . 7585 PARTS LIST. 87123 REMOTE CONTROL. 124125 AV RECEIVER/AV AMPLIFIER RX-V550/HTR-5750 RX-V450/HTR-5740/DSP-AX450 RX-V550/HTR-5750 RX-V450/HTR-5740/DSP-AX450 RadioFans.CN 收音机爱 好者资料库 RX-V550/HTR-5750 RX-V450/HTR-5740/D

9、SP-AX450 16 RX-V550/HTR-5750 RX-V450/HTR-5740/DSP-AX450 I REMOTE CONTROL PANELS RX-V550 (U, C, A, L, R, T, K models) HTR-5750 (U, C, A, T, K models) RX-V450 (U, C, A, L, R, T, K models) HTR-5740 (U, C, A models) DSP-AX450 (J model) RX-V450 (B, G, E models) HTR-5740 (G, E models) RX-V550 (B, G, E mod

10、els) RadioFans.CN 收音机爱 好者资料库 17 RX-V550/HTR-5750 RX-V450/HTR-5740/DSP-AX450 RX-V550Except RX-V550 161 (6-5/16) 140 (5-1/2)376.8 (14-13/16) 21 (13/16) 171 (6-3/4) 150 (5-15/16) 21 (13/16) 17.2 (11/16) 22 (7/8) 416 (16-3/8) 380 (15) 18 (11/16) 22 (7/8) 420 (16-1/2) 435 (17-1/8) Unit : mm (inch)/単位: mm

11、（） I SPECIFICATIONS / 参考仕様 I Audio Section / 部 Minimum RMS Output Power (Power Amp. Section) / 定格出力 ( 部) RX-V550/HTR-5750 (20 Hz to 20 kHz, 0.06% THD, 8 ohms) FRONT L/R90 W + 90 W CENTER90 W SURROUND L/R90 W + 90 W SURROUND BACK90 W (1 kHz, 0.7% THD, 8 ohms) FRONT L/R105 W + 105 W CENTER105 W SURROU

12、ND L/R105 W + 105 W SURROUND BACK105 W RX-V450/HTR-5740 (20 Hz to 20 kHz, 0.06% THD, 8 ohms) FRONT L/R85 W + 85 W CENTER85 W SURROUND L/R85 W + 85 W SURROUND BACK85 W (1 kHz, 0.7% THD, 8 ohms) FRONT L/R100 W + 100 W CENTER100 W SURROUND L/R100 W + 100 W SURROUND BACK100 W DSP-AX450 (20 Hz to 20 kHz,

13、 0.09% THD, 6 ohms) FRONT L/R85 W + 85 W CENTER, REAR CENTER85 W SURROUND L/R85 W + 85 W SURROUND BACK85 W Maximum Power / 実用最大出力 (EIAJ) (1kHz, 10% THD) RX-V550/HTR-5750 (R, T, K models) FRONT L/R (8 ohms)130 W + 130 W CENTER, REAR CENTER (8 ohms)130 W SURROUND L/R (8 ohms)130 W + 130 W SURROUND BAC

14、K (8 ohms)130 W RX-V450/HTR-5740 (R, T, K models) FRONT L/R (8 ohms)125 W + 125 W CENTER, REAR CENTER (8 ohms)125 W SURROUND L/R (8 ohms)125 W + 125 W SURROUND BACK (8 ohms)125 W DSP-AX450 FRONT L/R (6 ohms)125 W + 125 W CENTER, REAR CENTER (6 ohms)125 W SURROUND L/R (6 ohms)125 W + 125 W SURROUND B

15、ACK (6 ohms)125 W DIN Standard Output Power Per Channel / DIN (B, G, E, L models) (1 kHz, 0.7% THD, 4 ohms) RX-V550/HTR-5750 FRONT L/R135 W + 135 W CENTER135 W SURROUND L/R135 W + 135 W SURROUND BACK135 W RX-V450/HTR-5740 FRONT L/R130 W + 130 W CENTER130 W SURROUND L/R130 W + 130 W SURROUND BACK130

16、W IEC Power / IEC B, G, E, L models RX-V550/HTR-5750 FRONT L/R (1 kHz, 0.06% THD, 8 ohms)100 W + 100 W RX-V450/HTR-5740 FRONT L/R (1 kHz, 0.06% THD, 8 ohms)95 W + 95 W Dynamic Power Per Channel / (IHF) RX-V550/HTR-5750 FRONT L/R (8/6/4/2 ohms)120/155/190/235 W RX-V450/HTR-5740 FRONT L/R (8/6/4/2 ohm

17、s)115/150/185/230 W DSP-AX450 FRONT L/R (8/6/4/2 ohms)/125/155/200 W Dynamic Headroom / (U, C models) RX-V550/HTR-5750 8 ohms1.25 dB RX-V450/HTR-5740 8 ohms1.31 dB Damping Factor / 20 Hz to 20 kHz, SPEAKER-A100 or more Input Sensitivity / Input Impedance (入力感度/入力) CD, etc.200 mV / 47 k-ohms MULTI CH

18、 IN FRONT L/R, CENTER, SURROUND L/R, SUB WOOFER 200 mV / 47 k-ohms Maximum Input Signal Level / 最大許容入力 1 kHz, 0.5% THD2.0 V or more Output Level / Output Impedance (出力電圧/出力) REC OUT200 mV / 1.2 k-ohms 20Hz SUB WOOFER4 V / 1.2 k-ohms ZONE2 (RX-V550 U, C, A models)200 mV / 1.2 k-ohms Headphone Jack Ra

19、ted Output / Impedance 出力/出力 CD, etc. (1 kHz, 50 mV, 8 ohms)150 mV / 100 ohms Frequency Response / 周波数特性 CD, etc. to FRONT L/R (10 Hz to 100 kHz)+0/-3.0 dB Total Harmonic Distortion / 全高調波歪率 (20Hz to 20kHz, 40W, 8 ohms) CD, etc. (Effect Off) to FRONT L/R SP OUT0.06 % or less Signal to Noise Ratio /

20、信号対雑音比 (IHF-A Network) CD, etc. (Input shorted) SP OUT 250mV100 dB or more Residual Noise / 残留 (IHF-A Network) FRONT L/R SP OUT150 V or less Channel Separation / CD, etc. (Input 5.1 k-ohms shorted, 1 kHz/10 kHz) 60 dB or more/45 dB or more Tone Control Characteristics / 特性 BASS Boost/Cut10 dB (60 Hz

21、) TREBLE Boost/Cut10 dB (20 kHz) Filter Characteristics / 特性 FRONT L/R, CENTER, SURROUND L/R SURROUND BACK SP Small (H.P.F.) fc= 40/60/80/90/100/110/120/160/200 Hz / 12 dB/ oct. SUBWOOFER (L.P.F.) fc= 40/60/80/90/100/110/120/160/200 Hz / 24 dB/ oct. I Video Section / 部 Video Signal Type / 信号方式 U, C,

22、 R, K, J modelsNTSC A, B, G, E, L, T modelsPAL Video Signal Level / 信号 1 Vp-p / 75 ohms S-Video Signal Level / S信号 RX-V550/HTR-5750/DSP-AX450 Y1 Vp-p / 75 ohms C0.286 Vp-p / 75 ohms Component Signal Level (Except J model) Y1 Vp-p / 75 ohms Cb/Cr0.7 Vp-p / 75 ohms D4-Video Signal Level / D4端子信号 (J mo

23、del) Y1 Vp-p / 75 ohms Cb/Cr0.7 Vp-p / 75 ohms Maximum Input Level / 最大許容入力 1.5 Vp-p or more Signal to Noise Ratio / 信号対雑音比 50 dB or more Monitor Out Frequency Response / 周波数帯域 RX-V550/HTR-5750 Composite Video Signal Level, S-Video Signal Level5 Hz to 10 MHz, -3 dB S-Video Signal Level (J model)5 Hz

24、 to 10 MHz, -3 dB Component Video Signal Level5 Hz to 60 MHz, -3 dB RX-V550/HTR-5750/DSP-AX450 Composite Video Signal Level5 Hz to 10 MHz, -3 dB S-Video Signal Level (J model)5 Hz to 10 MHz, -3 dB Component Video Signal Level (Except J model) 5 Hz to 60 MHz, -3 dB D4-Video Signal Level (J model)5 Hz

25、 to 60 MHz, -3 dB I FM Section / FM部 Tuning Range / 受信周波数範囲 U, C models87.5 to 107.9 MHz A, B, G, E, T, K models87.5 to 108.0 MHz L, R models87.5 to 108.0 / 87.50 to 108.00 MHz J model76.0 to 90.0 MHz 50dB Quieting Sensitivity / 50dB SN感度 (IHF) (1kHz, 100% Mod.) Mono2.0 V (17.3 dBf) Stereo25 V (39.2

26、 dBf) Usable Sensitivity / 実用感度 (IHF) Mono1.0 V (11.2 dBf) Selectivity / 選択度 70 dB Signal to Noise Ratio / 信号対雑音比 (IHF) Mono / Stereo76 dB / 70 dB Harmonic Distortion / 歪率 (1 kHz) Mono/Stereo0.2 / 0.3 % Stereo Separation / 1 kHz42 dB Frequency Response / 周波数特性 20 Hz to 15 kHz+0.5 / -2 dB Antenna Inp

27、ut / 入力 75 ohms unbalanced I AM Section / AM部 Tuning Range / 受信周波数範囲 U, C models530 to 1,710 kHz A, B, G, E, T, K, J models531 to 1,611 kHz L, R models530 to 1,710 / 531 to 1,611 kHz Usable Sensitivity / 実用感度 300 V/m Antenna / 入力 Loop Antenna I General / 総合 Power Supply / 電源電圧 U, C modelsAC 120 V, 6

28、0 Hz A modelAC 240 V, 50 Hz B, G, E modelsAC 230 V, 50 Hz L modelAC 220/230-240 V, 50/60 Hz R modelAC 110/120/220/230-240 V, 50/60 Hz T modelAC 220 V, 50 Hz K modelAC 220 V, 60 Hz J modelAC 100V, 50/60 Hz Power Consumption / 消費電力 U, C models350 W / 440 VA A, B, G, E, L, R, T, K models360 W J model24

29、5 W Standby Power Consumption (reference data) / 待機時消費電力 （参考値） AC240 V / 50 Hz0.1 W Maximum Power Consumption R model (6ch Drive, 10% THD)700 W AC Outlets / AC 2 Switched Outlets U, C, G, E, T, J models100 W max. total L, R models50 W max. total 1 Switched Outlet A, B models100 W max. Dimensions / 寸

30、法 (W x H x D) RX-V550435 x 171 x 420 mm (17-1/8 x 6-3/4 x 16-1/2) HTR-5750/RX-V450/HTR-5740/DSP-AX450 435 x 161 x 416 mm (17-1/8 x 6-5/16 x 16-3/8) Weight / 質量 11.0 kg (24 lbs. 4 oz.) Finish / 仕上 RX-V550.Gold color (L, R, T, K) models Black color (U, C, A, B, G, E, R) models Titanium color (B, G, E

31、models) HTR-5750 .Gold color (T, K) models Black color (U, C) models Silver color (U, C, A) models RX-V450.Gold color (L, R, T, K) models Black color (U, C, A, B, G, E, R) models Silver color (C, L, R) models Titanium color (B, G, E models) HTR-5740.Gold color (T, K) models Black color (U, C, G, E)

32、models Silver color (U, C, A, G, E) models DSP-AX450 .Gold color (J) model Silver color (J) model Accessories / 付属品 Remote Control x 1, Batteries (Manganese Dry) x 4 (RAV250/ RAV251) / x 2 (RAV302), Indoor FM Antenna x 1, AM Loop Antenna x 1, PAL 75/300 Socket B model * Specifications are subject to

33、 change without notice due to product improvements. 参考仕様外観予告変更。 U . U.S.A. modelC . Canadian model A . Australian modelB . British model G . European modelE . South European model L. Singapore modelR . General model T . Chinese modelK . Korean model J . Japanese model Manufactured under license from

34、 Dolby Laboratories. “Dolby”, “Pro Logic”, “Surround EX”, and the double-D symbol are trademarks of Dolby Laboratories. 実施権基製造。 、DOLBY、PRO LOGIC、EX D記号、商標。 SILENT CINEMA is a trademark of YAMAHA CORPORATION. SILENT THEATER 株式会社登録 商標。 “DTS” and “DTS-ES Digital Surround” and “Neo:6” are trademarks of

35、Digital Theater Systems, Inc. DTS、DTS-ESNeo:6 登録商標。 AAC商標。 DIMENSIONS / 寸法図 RX-V550/HTR-5750 RX-V450/HTR-5740/DSP-AX450 18 CATEGORYMAIN MENUSUB MENUSELECT MENUVALUE INITIAL BASIC SETUPROOM : S M LS / M / L SUBWOOFER : YESYES / NONE SPEAKER : 6spk2 / 3 / 4 / 5 / 6 SET CANCELSET / CANCEL CHECK OK? : Y

36、ESYES / NO MANUAL SETUP1 SOUND MENUA ) SPEAKER SETCENTER : SMLNONE / SML / LRG FRONT : LARGESMALL / LARGE SURR LR : SMLNONE / SML / LRG SURR B : SMLNONE / SML / LRG BASS OUT : BOTHSWFR / FRONT / BOTH Cross Over : 80Hz40 / 60 / 80 / 100 / 110 / 120 / 160 / 200 Hz SWFR PHASE : NRMNRM / REV B ) SP LEVE

37、LL| RCENTER 10 step C| RL | RC | RR | SWFR| C ) SP DISTANCEUNIT : feetfeet / meters FRONT L 10.0ftfeet : 1.0 to 80.0 ft 7.0ft / 0.5 ft step FRONT R 10.0ft CENTER 10.0ft SURR L 10.0ft SURR R 10.0ft SURR B 7.0ft SWFR 10.0ft FRONT L 3.00mmeters : 0.30 to 24.00 m 3.00m / 0.10 m step FRONT R 3.00m CENTER

38、 3.00m SURR L 3.00m SURR R 3.00m SURR B 3.00m SWFR 3.00m D ) CENTER GEQTEST : OFF ONOFF / ON 100Hz -|- 0-6 dB to +6 dB 0 dB / 0.5 STEP 300Hz -|- 0 1kHz-|- 0 3kHz-|- 0 10kHz -|- 0 E ) LFE LEVELSP LFE : 0-20 dB to 0 dB 0 dB / 1 STEP HP LFE : 0-20 dB to 0 dB 0 dB / 1 STEP F ) D . RANGESP D . R : MAXMIN

39、 / STD / MAX HP D . R : MAXMIN / STD / MAX G ) AUDIO SETMUTE : MUTE-20 dB / MUTE DELEY : 0 ms0 ms to 160 ms / 1 step ( Except RX-V550 )DUAL MONO : MAINMAIN / SUB / ALL 2 INPUT MENUA ) I / O ASSIGNC . V (A) : DVDDVD / VCR / V-AUX / DTV/CBL C . V (B) : DVT/CBLDVD / VCR / V-AUX / DTV/CBL OUT (1) : MD/C

40、D-RMD/CD-R / CD / VCR / V-AUX / DTV/CBL / DVD IN (2) : MD/CD-RMD/CD-R / CD / VCR / V-AUX / DTV/CBL / DVD IN (3) : DVDMD/CD-R / CD / VCR / V-AUX / DTV/CBL / DVD IN (4) : DTV/CBLMD/CD-R / CD / VCR / V-AUX / DTV/CBL / DVD B ) INPUT MODE AUTO / LASTAUTO / LAST 3 OPTION MENUA ) DISPLAY SETDIMMER : 0-4 to

41、 0 / 1 step V CONV : ONOFF / ON B ) MEMORY GUARDMEM . GUARD : OFFOFF / ON C ) PARAM . INI D ) ZONE SETSP B : FRONTFRONT / ZONE B 1 SUBTRANS P.C.B. 2 POWER (2) P.C.B. (R, L models only) 3 FUNCTION (5) P.C.B. (U, C, A models only) 4 MAIN (2) P.C.B. 5 Tuner 6 FUNCTION (7) P.C.B. 7 FUNCTION (3) P.C.B. 8

42、 FUNCTION (4) P.C.B. 9 FUNCTION (8) P.C.B. 0 FUNCTION (6) P.C.B. A FUNCTION (2) P.C.B. B DSP P.C.B. C MAIN (1) P.C.B. D FUNCTION (1) P.C.B. E POWER (1) P.C.B. F MAIN (7) P.C.B. G MAIN (4) P.C.B. H OPERATION (4) P.C.B. I OPERATION (1) P.C.B. J OPERATION (3) P.C.B. K OPERATION (2) P.C.B. L Power Trans

43、former HILKJ B A C D E F G 12 345678 9 0 RX-V550 1 SUBTRANS P.C.B. 2 POWER (2) P.C.B. (R, L models only) 3 VIDEO P.C.B. (DSP-AX450 only) 4 MAIN (2) P.C.B. 5 Tuner 6 FUNCTION (7) P.C.B. (Except DSP-AX450) 7 FUNCTION (3) P.C.B. (HTR-5750, DSP-AX450 only) 8 FUNCTION (4) P.C.B. 9 FUNCTION (8) P.C.B. 0 F

44、UNCTION (6) P.C.B. A FUNCTION (2) P.C.B. B DSP P.C.B. C MAIN (1) P.C.B. D FUNCTION (1) P.C.B. E POWER (1) P.C.B. F MAIN (7) P.C.B. G MAIN (5) P.C.B. H OPERATION (4) P.C.B. I OPERATION (1) P.C.B. J OPERATION (5) P.C.B. K OPERATION (2) P.C.B. L OPERATION (3) P.C.B. M Power Transformer HIJKLM B A C D E

45、 F G 123 45678 9 0 HTR-5750/RX-V450/HTR-5740/DSP-AX450 Set Menu Table / I INTERNAL VIEW 6ch Stereo ParameterUnit CT LEVEL0/100/1% SL LEVEL0/100/1% SR LEVEL0/100/1% SB LEVEL0/100/1% The variable range of the parameter (Min/Max/Step) / 可変範囲（最小/最大/） Unit DSP LEVEL-6/+3/1dB DELAY1/99/1ms Pro Logic IIx M

46、usic ParameterUnit PLII/PLIIxPLII/PLIIx PANORAMAOFF/ON DIMENSIONS-3/+3/1 CT WIDTH0/7/1 DTS Neo:6 Music ParameterUnit C. IMAGE0/0.5/0.1 19 RX-V550/HTR-5750 RX-V450/HTR-5740/DSP-AX450 FUNCTION (3) P.C.B. DSP P.C.B. FUNCTION (7) P.C.B. FUNCTION (5) P.C.B. (U, C, A models only) FUNCTION (8) P.C.B. FUNCTION (4) P.C.B. FUNCTION (6) P.C.B. FUNCTION (1) P.C.B. FUNCTION (2) P.C.B. Tuner Support/DSP DSP P.C.B. FUNCTION (2) P.C.B. CB2 CB351 CB1 CB502 CB503 CB307 6 Top Cover Front Panel Unit Knob Sub Chass