Yamaha-R-840-Service-Manual电路原理图.pdf

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1、R-840/NS-BP300 Copyright 2009 All rights reserved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. 1 0 11 5 3 SERVICE MANUAL IMPORTANT NOTICE This manual has been provided for the use of authorized YAMAHA Retailers and

2、 their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifi cally YAMAHA Products, are already known and understood by the users, and have therefore not been restated. WARNING: Failure to follow appropriate service and safety procedures when

3、 servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specifi ed. For these reasons, we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed serv

4、ice representative. IMPORTANT: The presentation or sale of this manual to any individual or fi rm does not constitute authorization, certifi cation or recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form. The data provided is believed to be ac

5、curate 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 are, therefore, inevitable and specifi cations are subject to change without notice or obligation to retrofi t.

6、 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 may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connec

7、t to this buss). IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit. CONTENTS TO SERVICE PERSONNEL .2 SYSTEM COMPOSITION .3 FRONT PANELS .46 REAR PANELS .711 REMOTE CONTROL PANELS .12 SPECIFICATIONS .1315 INTERNAL VIEW .16 DISASS

8、EMBLY PROCEDURES .1719 UPDATING FIRMWARE .2024 SELF-DIAGNOSTIC FUNCTION .2537 CONFIRMATION OF IDLING CURRENT OF AMP UNIT .3839 DISPLAY DATA .40 IC DATA .4144 PIN CONNECTION DIAGRAMS .4547 BLOCK DIAGRAM .49 PRINTED CIRCUIT BOARDS .5062 SCHEMATIC DIAGRAMS .6370 REPLACEMENT PARTS LIST .7179 REMOTE CONT

9、ROL .80 SYSTEM CONNECTOR .8182 09.11 P.O.Box 1, Hamamatsu, Japan RECEIVER/SPEAKER PACKAGE R-840/NS-BP300 When accepting a repair order from the user, it is recommended to receive the R-840 and BD-940/DVD-840/CD- 640 as a set for the repair work. The MCR-940 consists of the R-840, BD-940 and NS-BP300

10、. The MCR-840 consists of the R-840, DVD-840 and NS-BP300. The MCR-640 consists of the R-840, CD-640 and NS-BP300. This service manual is for the R-840/NS-BP300. For service manual of the BD-940/DVD-840/CD-640, please refer to the following publication numbers: BD-940: 101154/DVD-840: 101155/CD-640:

11、 101156 MICRO COMPONENT SYSTEMMCR-940/MCR-840/MCR-640 2 R-840/NS-BP300 R-840/NS-BP300 For U model “CAUTION” “F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 3.5A, 125V FUSE.” For C model CAUTION F1: REPLACE WITH SAME TYPE 3.5A, 125V FUSE. ATTENTION F1: UTILISER UN FUSI

12、BLE DE RECHANGE DE MME TYPE DE 3.5A, 125V. This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprote

13、cted 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 this product, wash your hands before handling food. 1. Critical Components Information Component

14、s having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly i

15、nsulated from supply circuits. Meter impedance should be equivalent to 1500 ohms shunted by 0.15 F. All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder. Among some types of lead free solder currently available, it is recommended to use one of the follo

16、wing types for the repair work. Sn + Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth) Caution: As the melting point temperature of the lead free solder is about 30C to 40C (50F to 70F) higher than that of the lead solder, be sure to use a soldering iron suit

17、able to each solder. TO SERVICE PERSONNEL Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities. WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! About lead free solder 3 R-840/NS-BP30

18、0 R-840/NS-BP300 SYSTEM COMPOSITION When accepting a repair order from the user, it is recommended to receive the R-840 and BD-940/DVD-840/CD-640 as a set for the repair work. The MCR-940 consists of the R-840, BD-940 and NS-BP300. The MCR-840 consists of the R-840, DVD-840 and NS-BP300. The MCR-640

19、 consists of the R-840, CD-640 and NS-BP300. This service manual is for the R-840/NS-BP300. For service manual of the BD-940/DVD-840/CD-640, please refer to the following publication numbers: BD-940: 101154/DVD-840: 101155/CD-640: 101156 NS-BP300 NS-BP300 BD-940 R-840 NS-BP300 NS-BP300 DVD-840 NS-BP

20、300 NS-BP300 CD-640 MCR-940 MCR-840 MCR-640 R-840 R-840 4 R-840/NS-BP300 R-840/NS-BP300 FRONT PANELS Top view Front view C, T, K, A, B, G, L, V models C, T, K, A, L, V models A, B models R-840 5 R-840/NS-BP300 R-840/NS-BP300 B, G models 6 R-840/NS-BP300 R-840/NS-BP300 NS-BP300 C, T, K, A, B, G, L, V

21、 models 7 R-840/NS-BP300 R-840/NS-BP300 REAR PANELS C model T model R-840 8 R-840/NS-BP300 R-840/NS-BP300 K model A model 9 R-840/NS-BP300 R-840/NS-BP300 G model B model 10 R-840/NS-BP300 R-840/NS-BP300 L model V model 11 R-840/NS-BP300 R-840/NS-BP300 NS-BP300 C, T, K, A, B, G, L, V models C, K, A,

22、B, G, L, V models T model 12 R-840/NS-BP300 R-840/NS-BP300 REMOTE CONTROL PANELS MCR-940MCR-840MCR-640 B, G, F modelsC, T, K, A, L, V modelsG, F modelsC, L, V modelsB, G models Key colors A. Red B. Green C. Yellow D. Blue 13 R-840/NS-BP300 R-840/NS-BP300 SPECIFICATIONS Audio Section Minimum RMS Outp

23、ut Power (Power Amp. Section) (L/R drive, 1 kHz, 10 % THD, 6 ohms) C, T, K, A, B, G, V models .65 W + 65 W L model .60 W + 60 W Dynamic Power Per Channel (IHF) (6 / 4 / 2 ohms) C, T, K, A, B, G, V models .60 / 75 / 100 W L model .55 / 70 / 92 W MAX. Power Per Channel (1 kHz, 0.7 % THD, 4 ohms) B, G

24、models .64 W + 64 W IEC Power (1 kHz, 0.1 % THD, 6 ohms) B, G models .52 W + 52 W Maximum Power (JEITA) (1 kHz, 10 % THD, 6 ohms) L, V models V model .65 W L model .60 W Power Band Width (MAIN L/R drive, 0.1 % THD, 30 W, 6 ohms) .10 Hz to 50 kHz Damping Factor (20 Hz to 20 kHz, 6 ohms) .60 or more I

25、nput Sensitivity/Input Impedance Player etc. . 200 mV / 47 k-ohms Maximum Input Voltage (1 kHz, 0.5 % THD) DVD etc. .2.8 V Rated Output Voltage/Output Impedance SUBWOOFER .1.2 V Headphone Jack Rated Output/Output Impedance (1 kHz, 200 mV, 8 ohms) Player etc. . 130 mV / 8 ohms Frequency Response (20

26、Hz to 20 kHz) Player etc. . 0 0.5 dB Total Harmonic Distortion (20 Hz to 20 kHz, 30 W, 6 ohms) Player etc. to SP OUT .0.04 % or less Signal to Noise Ratio (IHF-A network) Player (Input shorted 200 mV) . 100 dB or more Residual Noise (IHF-A network) PURE DIRECT ON .110 V Channel Separation (DVD etc.,

27、 Input 5.1 k-ohms shorted) 1 kHz / 10 kHz . 60 dB or more / 45 dB or more Tone Control Characteristics Bass Boost/Cut .10 dB, step 50 Hz Turnover frequency .350 Hz Treble Boost/Cut .10 dB, step 20 kHz Turnover frequency .3.5 kHz FM Section Tuning Range C model .87.5 to 107.9 MHz T, K, A, B, G, L, V

28、models .87.50 to 108.00 MHz 50 dB Quieting Sensitivity (IHF) (1 kHz, 100 % MOD.) Mono .2.8 V (20.2 dBf) Signal to Noise Ratio (IHF) Mono .73 dB Stereo .70 dB Harmonic Distortion (1 kHz) Mono .0.5 % Stereo .0.5 % Antenna Input . 75 ohms unbalanced DAB Section A, B models Tuning Range .174.0 to 240 MH

29、z (BAND III) General Power Supply C model .AC 120 V, 60 Hz T model .AC 220 V, 50 Hz K model .AC 220 V, 60 Hz A model .AC 240 V, 50 Hz B, G models .AC 230 V, 50 Hz L model . AC 220240 V, 50/60 Hz V model . AC 110120 V, 60 Hz Power Consumption C, T, K, L, V models .110 W A, B, G models .115 W Standby

30、Power Consumption (reference data) .0.3 W or less Maximum Power Consumption (1 kHz, 10 % THD, 6 ohms) V model .400 W Dimensions (W x H x D) .215 x 110 x 348 mm (8-1/2 x 4-3/8 x 13-3/4) Weight .5.7 kg (12.6 lbs.) Finish Black color .C, T, K, A, B, G, L, V models Silver color .C, T, K, A, B, G, L, V m

31、odels Accessories for R-840 Indoor FM antenna .x 1 DAB wire antenna (B model) .x 1 DOCK cover .x 1 for MCR-940/MCR-840/MCR-640 Remote control .x 1 Battery (R03, AAA, UM-4) .x 2 Audio pin cable (1.0 m) .x 1 Video pin cable (1.5 m) .x 1 System control cable (0.6 m) .x 1 USB cap .x 1 * Specifications a

32、re subject to change without notice due to product improvements. R-840 14 R-840/NS-BP300 R-840/NS-BP300 NS-BP300 Speaker Section Type .2-way bass reflex speaker system Driver Woofer .13 cm (5-1/8) cone type Tweeter .2.5 cm (1) soft dome type Frequency Response .55 Hz to 28 kHz (-10dB) 55 Hz to 80 kHz (-30dB) Impedance .6 ohms Nominal Input .60 W Maximum Input .110 W Sensitivity . 85 dB/2.83 V/m Crossover Frequency .3 kHz Input Terminal . Screw/Banana type Dimensions (W x H x D) . 176 x 318 x 305 mm (6-7/8 x 12-1/2 x 12) Weight .4.3 kg (9.5 lbs.) Finish Black piano