Yamaha-RXV-420-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL AV RECEIVER RX-V420/RX-V420RDS/ HTR-5440/HTR-5440RDS 100754 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 P

2、roducts, are already known 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 personal injury, destruction of expensive components, and failure of the product to perform as s

3、pecified. For these reasons, we advise all YAMAHA product 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, cert

4、ification or recognition 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, and service departments of YAMAHA are continually

5、striving to improve YAMAHA products. Modifications are, 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 c

6、omponents. Discharge any static electricity your body 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.

7、O.Box 1, Hamamatsu, Japan I CONTENTS TO SERVICE PERSONNEL . 1 IMPEDANCE SELECTOR . 1 FRONT PANELS. 23 REMOTE CONTROL TRANSMITTER . 3 REAR PANELS . 45 SPECIFICATIONS. 6 INTERNAL VIEW . 7 DISASSEMBLY PROCEDURES . 8 SELF DIAGNOSIS FUNCTION (DIAG) . 924 AMP ADJUSTMENTS. 24 DISPLAY DATA . 2526 IC DATA .

8、2732 BLOCK DIAGRAM. 3336 PRINTED CIRCUIT BOARD . 3752 IC BLOCK DIAGRAM . 5354 SCHEMATIC DIAGRAM . 5558 PARTS LIST . 5972 REMOTE CONTROL TRANSMITTER . 7376 SURROUND D I G I TA L SILENTVIDEO AUX PHONESVIDEOL AUDIO R 6CH INPUTINPUT MODE INPUT VOLUME RDS MODE/FREQEON PTY SEEK MODESTART TUNING MODE PRESE

9、T /TUNINGFM/AM MEMORY EDIT BASSBALANCESPEAKERS PROGRAMPRESET/TUNINGEFFECTA/B/C/D/E AB OFFON STANDBY /ON D I G I T A L +LR TREBLE + MANL/AUTO FMAUTO/MANL MONO RX-V420RDS RX-V420/RX-V420RDS/ HTR-5440/HTR-5440RDS RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS RX-V420/RX-V420RDS/ HTR-5440/HTR-5440RDS 435 (17-1

10、/8) Unit : mm (inch) 151 (5-15/16) 130 (5-1/8)352.5 (13-7/8) 21 (13/16) 16 (5/8) 21.3 (13/16) 389.8 (15-3/8) 1 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addit

11、ion, other electrical/electronic and /or plastic (where applicable) components may also contain 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/ELECTRO

12、NIC 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 expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of thi

13、s product, wash your hands before handling food. I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models

14、 Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. GMeter impedance should be equivalent to 1500 ohm shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC pl

15、ug in both polarities. I IMPEDANCE SELECTOR IMPEDANCE SELECTOR WARNING: Do not change the IMPEDANCE SELECTOR switch setting while the power to this unit is on, otherwise this unit may be damaged. DIMENSIONS RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS RX-V420/RX-V420RDS/ HTR-5440/HTR-5440RDS 2 I FRONT PA

16、NELS RX-V420 (U, C, A, R, T models) SURROUND D I G I TA L SILENTVIDEO AUX PHONESVIDEOL AUDIO R 6CH INPUTINPUT MODE INPUT VOLUME TUNING MODE PRESET /TUNINGFM/AM MEMORY EDIT BASSBALANCESPEAKERS PROGRAMPRESET/TUNINGEFFECTA/B/C/D/E AB OFFON STANDBY /ON D I G I T A L +LR TREBLE + MANL/AUTO FMAUTO/MANL MO

17、NO RX-V420 RX-V420RDS (B, G models) SURROUND D I G I TA L SILENTVIDEO AUX PHONESVIDEOL AUDIO R 6CH INPUTINPUT MODE INPUT VOLUME RDS MODE/FREQEON PTY SEEK MODESTART TUNING MODE PRESET /TUNINGFM/AM MEMORY EDIT BASSBALANCESPEAKERS PROGRAMPRESET/TUNINGEFFECTA/B/C/D/E AB OFFON STANDBY /ON D I G I T A L +

18、LR TREBLE + MANL/AUTO FMAUTO/MANL MONO RX-V420RDS HTR-5440 (U, C, A, R, T models) SURROUND D I G I TA L SILENTVIDEO AUX PHONESVIDEOL AUDIO R 6CH INPUTINPUT MODE INPUT VOLUME TUNING MODE PRESET /TUNINGFM/AM MEMORY EDIT BASSBALANCESPEAKERS PROGRAMPRESET/TUNINGEFFECTA/B/C/D/E AB OFFON STANDBY /ON D I G

19、 I T A L +LR TREBLE + MANL/AUTO FMAUTO/MANL MONO HTR-5440 RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS RX-V420/RX-V420RDS/ HTR-5440/HTR-5440RDS HTR-5440RDS (G model) SURROUND D I G I TA L SILENTVIDEO AUX PHONESVIDEOL AUDIO R 6CH INPUTINPUT MODE INPUT VOLUME RDS MODE/FREQEON PTY SEEK MODESTART TUNING MODE

20、 PRESET /TUNINGFM/AM MEMORY EDIT BASSBALANCESPEAKERS PROGRAMPRESET/TUNINGEFFECTA/B/C/D/E AB OFFON STANDBY /ON D I G I T A L +LR TREBLE + MANL/AUTO FMAUTO/MANL MONO HTR-5440RDS I REMOTE CONTROL TRANSMITTER U, C, A, R, T modelsB, G models 3 RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS RX-V420/RX-V420RDS/ H

21、TR-5440/HTR-5440RDS I REAR PANELS U model C model A model 4 RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS RX-V420/RX-V420RDS/ HTR-5440/HTR-5440RDS 5 G model R, T model B model RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS RX-V420/RX-V420RDS/ HTR-5440/HTR-5440RDS 6 I SPECIFICATIONS I Audio Section Minimum RMS Ou

22、tput Power (Power Amp. Section) (20 Hz to 20 kHz, 0.06% THD, 8 ohms) MAIN .65W + 65W CENTER. 65W REAR .65W + 65W (1 kHz, 0.09% THD, 8 ohms) MAIN .70W + 70W CENTER. 70W REAR .70W + 70W Maximum Power (EIAJ) R, T models (1 kHz, 10% THD, 8 ohms) MAIN .95W + 95W CENTER. 95W REAR .95W + 95W Dynamic Power

23、Per Channel (IHF) MAIN L/R (8/6/4/2 ohms) U model . 95/115/135/155 W C, A, B, G, R, T models . 90/110/130/150 W DIN Standard Output Power Per Channel MAIN L/R (1 kHz, 0.7% THD, 4 ohms) G model.95W + 95W Dynamic Headroom 8 ohms U, C models . 1.18 dB IEC Power MAIN L/R (1 kHz, 0.06% THD, 8 ohms) G mod

24、el.67W + 67W Damping Factor MAIN L/R (20 Hz to 20 kHz, 8 ohms) . 60 or more Input Sensitivity / Input Impedance CD, etc. . 150 mV / 47 k-ohms EXT. DECODER MAIN L/R. 150 mV / 47 k-ohms CENTER, SURROUND L/R, SUBWOOFER .150 mV / 40 k-ohms Maximum Input Signal Level CD, etc. (1 kHz, 0.5% THD, Effect On)

25、 . 2.2 V Output Level / Output Impedance REC OUT . 150 mV / 1.2 k-ohms SUB WOOFERMAIN SP: Small . 4 V/1.2 k-ohms Headphone Jack Rated Output / Impedance 1 kHz, 150 mV, 8 ohms . 0.47 V / 390 ohms Frequency Response CD, etc. to MAIN (20 Hz to 20 kHz) . 0 0.5 dB Total Harmonic Distortion (20 Hz to 20 k

26、Hz, 35 W / 8 ohms) CD, etc. (EFFECT OFF) to MAIN SP OUT .0.025% or less Signal to Noise Ratio (IHF-A network) CD, etc. (Input shorted, Effect Off) to MAIN SP OUT 150 mV .96 dB or more 250 mV .100 dB or more Residual Noise (IHF-A netwok) MAIN L/R SP OUT . 150 V or less Channnel Separation (Vol -30 dB

27、, Effect Off) CD, etc. (Input 5.1 k-ohms terminated, 1 kHz) .60 dB or more CD, etc. (Input 5.1 k-ohms terminated, 10 kHz) .45 dB or more Tone Control Characteristics Bass:Boost/Cut . 10 dB (50 Hz) Turnover Frequency . 350 Hz Treble: Boost/Cut . 10 dB (20 kHz) Turnover Frequency . 3.5 kHz Filter Char

28、acteristics MAIN, Rear SP Small (H.P.F.) .90 Hz, 12 dB/oct. SUBWOOFER (L.P.F.) .90 Hz, 18 dB/oct. I Video Section Video Signal Type U, C, R, T models . NTSC A, B, G models. PAL Video Signal Level . 1 Vp-p / 75 ohms Maximum Input Level . 1.5 Vp-p Signal to Noise Ratio .50 dB or more Monitor Out Frequ

29、ency Response S-Video Signal Level .5 Hz to 10 MHz, -3 dB I FM Section Tuning Range U, C models . 87.5 to 107.9 MHz A, B, G models. 87.5 to 108.0 MHz R, T models. 87.5 to 108.0 / 87.50 to 108.00 MHz 50 dB Quieting Sensitivity (IHF) (100% Mod) Mono . 2.0 V (17.3 dBf) Stereo. 25 V (39.2 dBf) Usable Se

30、nsitivity (IHF) Mono . 1.0 V (11.2 dBf) Selectivity at 400 kHz . 70 dB Signal to Noise Ratio (IHF) Mono / Stereo .76 dB / 70 dB Harmonic Distortion (1 kHz) Mono/Stereo. 0.2 / 0.3 % Stereo Separation 1 kHz . 45 dB Frequency Response 20 Hz to 15 kHz .+0.5 / -2 dB Antenna Input . 75 ohms unbalanced I A

31、M Section Tuning Range U, C models . 530 to 1,710 kHz A, B, G models. 531 to 1,611 kHz R, T models. 530 to 1,710 / 531 to 1,611 kHz Usable Sensitivity . 300 V/m Antenna . Loop Antenna I General Power Supply U, C models .AC 120 V, 60 Hz R, T models. AC 110/120/220/240 V, 50/60 Hz A model .AC 240 V, 5

32、0 Hz B, G models .AC 230 V, 50 Hz Power Consumption U model . 200 W C model . 210 W / 280 VA R, T, A, B, G models. 210 W Maximum Power Consumption (5ch Drive, 10% THD) R model . 480 W AC Outlets 2 switched outlets U, C, G models . 100W max., total R, T models. 50W max., total 1 switched outlet A, B

33、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 . 9.5 kg (20 lbs. 15 oz.) Accessories Remote control transmitter, Manganese batteries, Indoor FM antenna, AM loop antenna * Specifications are subject to change without notice due to product improvements

34、. U . U.S.A. modelC . Canadian model A . Australian modelB . British model G. European modelR . General model T . China model Manufactured under license from Dolby Laboratories. Dolby, AC- 3, Pro Logic, and the double-D symbol are trademarks of Dolby Laboratories. 1992-1997 Dolby Laboratories. All rights reserved. Manufactured under license from Digital Theater Systems, Inc. US Pat. No.