Yamaha-RXV-496-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL 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 users, and

2、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 product ow

3、ners 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 of firm does not constitute authorization, certification or recognition of any applicable technical capabil

4、ities, 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 are, ther

5、efore, 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 may ha

6、ve 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. 100704 AV RECEIVER RX-V496/RX-V496RDS HTR-5240/HTR-5240RDS TO

7、SERVICE PERSONNEL . 1 REMOTE CONTROL PANELS. 1 FRONT PANELS. 2 REAR PANELS . 34 SPECIFICATIONS. 56 INTERNAL VIEW . 7 DISASSEMBLY PROCEDURES . 7 SELF DIAGNOSIS FUNCTION . 819 FACTORY PRESET . 20 ICONTENTS AMP ADJUSTMENT . 21 TUNER ADJUSTMENT. 2225 IC DATA .2634 DISPLAY DATA . 35 BLOCK DIAGRAM. 3639 P

8、RINTED CIRCUIT BOARD . 4059 SCHEMATIC DIAGRAM . 6067 PARTS LIST . 6885 REMOTE CONTROL TRANSMITTER . 8687 1 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS I TO SERVICE PERSONNEL 1. Critical Components information Components having special characteristics are marked ! and must be replaced with parts having s

9、pecifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Model only) When service has been completed, it is imperative that you verify that all exposed conductive surfaces are properly insulated from supply circuits. Meter impedance should be equivalent to 1500 ohm

10、 shunted by 0.15F. Leakage current must not exceed 0.5mA. Be 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 (where applicable) com

11、ponents 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/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoi

12、d 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 this product, wash your hands before handling food. I REMOTE CONTROL PANELS

13、M U,C,R,T,A and L modelsM B and G models WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE CAUTION F804: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 6.0A,125V FUSE. ATTENTION F804: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 6.0A, 125

14、V FUSE A V TUNER AMP TAPE? /MD CBL? /SAT CD TV VCR DVD? /LD DVD? MENU POWER 2 TUNER 3 TAPE/MD 1 CD 5 SAT/D-TV 6 VCR 4 DVD/LD 8 V-AUX 9 EXT.DEC. 7 PHONO ENTER +10 CLEAR + +100 0 A/B/C/D/E MUTE PRG + PRG - TV SELECT DIR ADIR B DISC SKIP? PRESET EFFECT CH TEST DISP INDEX SLEEP RETURN A/B TV INPUTVCR RE

15、C MENUTITLE + - SET MENUTIME/LEVEL RAV203 V473170 US - CH C O D E S E T V O L U M E TV TUNER AMP TAPE? /MD CBL? /SAT CD TV VCR DVD? /LD DVD? MENU POWER 2 TUNER 3 TAPE/MD 1 CD 5 SAT/D-TV 6 VCR 4 DVD/LD 8 V-AUX 9 EXT.DEC. 7 PHONO ENTER +10 CLEAR + +100 0 A/B/C/D/E MUTE PRG + PRG - TV SELECT DIR ADIR B

16、 DISC SKIP? PRESET EFFECT CH TEST DISP INDEX SLEEP RETURN A/B TV INPUTVCR REC MENUTITLE + - SET MENUTIME/LEVEL RAV204 V473190 EU - CH C O D E S E T V O L U M E TV 2 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS I FRONT PANELS M RX-V496 U, C, A and L modelsBL (Black model) R and T modelsBL (Black model) an

17、d GD (Gold model) RX V M RX-V496RDS B modelBL (Black model) G modelBL (Black model) and TI (Titan model) M HTR-5240 U, C, T and A modelsBL (Black model) M HTR-5240RDS G modelBL (Black model) 3 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS I REAR PANELS M RX-V496/HTR-5240 U model M RX-V496/HTR-5240 C model

18、 M RX-V496 R model M RX-V496/HTR-5240 T model 4 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS M RX-V496/HTR-5240 A model M RX-V496RDS B model M RX-V496RDS/HTR-5240RDS G model M RX-V496 L model 5 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS I SPECIFICATIONS IFM SECTION Tuning Range U, C models87.5 to 107.9MHz R

19、, T models (Frequency Step: 100kHz) 87.5 to 108.0MHz (Frequency Step: 50kHz) 87.50 to 108.00MHz A, B, G, L models87.50 to 108.00MHz 50dB Quieting Sensitivity (IHF) U, C, R, T models only Mono, 1kHz, 100% mod1.6V(15.3dBf) Stereo, 1kHz, 100% mod23V(38.5dBf) Usable Sensitivity (DIN) A, B, G, L models o

20、nly DIN, Mono(S/N 26dB)0.9V DIN, Stereo(S/N 46dB)28V Alternate Channel Selectivity U, C, R, T models (400kHz)75dB A, B, G, L models (300kHz) Selectivity(two signals, 40kHz Dev.)55dB Signal-to-Noise Ratio U, C, R, T models (IHF) Mono/Stereo81dB/75dB A, B, G, L models (DIN-Weighted, 40kHz Dev.) Mono/S

21、tereo75dB/69dB Harmonic Distortion (1kHz) Mono/Stereo0.1%/0.2% Stereo Separation (1kHz)48dB Frequency Response (20Hz to 15kHz)01dB Output Level (1kHz) U, C, R, T models (100% mod.)550mV A, B, G, L models (40kHz Dev.)550mV Antenna Input75 unbalanced IAUDIO SECTION Minimum RMS Output Power Per Channel

22、 (Power Amp. Section) U, C models MAIN L/R, REAR L/R 20Hz to 20kHz, 0.06% THD, 870W+70W 1kHz, 0.09% THD, 880W+80W CENTER 20Hz to 20kHz, 0.06% THD, 870W 1kHz, 0.09% THD, 880W R,T,A,B,G,L models MAIN L/R, REAR L/R 20Hz to 20kHz, 0.06% THD, 865W+65W 1kHz, 0.09% THD, 870W+70W CENTER 20Hz to 20kHz, 0.06%

23、 THD, 865W 1kHz, 0.09% THD, 870W Maximum Power (EIAJ) R, T models only MAIN L/R, REAR L/R 1kHz, 10% THD, 8100W+100W CENTER, 1kHz, 10% THD, 8100W Dynamic Power Per Channel (IHF) MAIN L/R U, C models 8/6/4/2 100W+100W/120W+120W/140W+140W/160W+160W R,T models 8/6/4/2 90W+90W/110W+110W/130W+130W/150W+15

24、0W DIN Standard Output Power Per Channel G model only MAIN L/R, 1kHz, 0.7% THD, 4100W+100W Dynamic Headroom(8) U, C models only1.55dB IEC Power G model only MAIN L/R, 1kHz, 0.06% THD, 870W+70W Damping Factor (SPEAKER A) MAIN L/R, 20Hz to 20kHz, 860 Input Sensitivity/Input Impedance PHONO (MM)2.5mV/4

25、7k CD etc.150mV/47k MAIN L/R (EXTERNAL DECODER)150mV/47k CENTER150mV/40k SURROUND L/R150mV/40k SUB WOOFER150mV/40k Maximum Input Signal Level (1kHz) PHONO (MM), 0.1% THD100mV CD etc. (EFFECT ON), 0.5% THD2.2V Output Level/Output Impedance REC OUT150mV/1.2k SUB WOOFER (MAIN SP : SMALL)4V/1.2k Headpho

26、ne Jack Rated Output/Impedance CD etc., Input=1kHz, 150mV, RL=80.47V/390 Frequency Response(20Hz to 20kHz) CD etc., MAIN00.5dB RIAA Equalization Deviation PHONO (MM)00.5dB Total Harmonic Distortion(20Hz to 20kHz) PHONO (MM) to REC OUT (1V)0.02% CD etc.(EFFECT OFF) to MAIN SP OUT(35W/8) 0.025% Signal

27、-to-Noise Ratio(IHF-A Network) PHONO (MM), Input shorted, REC OUT U, C, R, T models86dB A, B, G, L models81dB CD etc,(EFFECT OFF), Input shorted, SP OUT 96dB Residual Noise(IHF-A Network) MAIN L/R, SP OUT150V Channel Separation(Vol. 30dB, EFFECT OFF) PHONO, Input shorted, 1kHz/10kHz60dB/55dB CD etc,

28、 Input 5.1k terminated, 1kHz/10kHz 60dB/45dB Tone Control Characteristics BASS: Boost/Cut10dB(50Hz) : Turnover Frequency350Hz TREBLE: Boost/Cut10dB(20kHz) : Turnover Frequency3.5kHz Filter Characteristics fc=90Hz, 12dB/oct. MAIN, CENTER, REAR SP SMALL : H.P.F. SUB WOOFER : L.P.F.fc=90Hz, 18dB/oct. 6

29、 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS IGENERAL Power Supply U, C modelsAC120V, 60Hz R modelAC110/120/220/240V, 50/60Hz T modelAC220V, 50Hz Standby Power Consumption U, C, models0.90W A, B, G, L models0.96W A modelAC240V, 50Hz B, G, L modelsAC230V, 50Hz Power Consumption U, R, T, A, B, G, L models

30、210W C model220W/290VA Maximum Power Consumption R model only 5CH Simultaneous output, 10% THD500W AC Outlet U, C, R, T, G, L models, Switched x 2100W max(Total) A, B models, Switched x 1100W max Dimensions(W x H x D)435 x 151 x 390.5mm (17-1/8 x 5-15/16 x 15-3/8) Weight10kg(23Ibs.) AccessoriesRemot

31、e Control Transmitter x 1 Indoor FM antenna x 1 AM loop antenna x 1 Battery (size AAA, R03) x 4 * Specifications subject to change without notice. U . U. S. A. modelA .Australian model C . Canadian modelB .British model R . General modelG .European model T. China modelL .Singapore model IAM SECTION

32、Tuning Range U, C models530 to 1710kHz R, T models (Frequency Step : 10kHz)530 to 1710kHz (Frequency Step : 9kHz)531 to 1611kHz A, B, G, L models531 to 1611kHz Usable Sensitivity300V/m Signal-to-Noise Ratio52dB Output Level (1kHz, 30% mod.)150mV AntennaLoop antenna IVIDEO SECTION Video Signal Type U

33、, C modelsNTSC R modelNTSC/PAL T, A, B, G, L modelsPAL Video Signal Level1Vp-p/75 S-Video Signal LevelY:1Vp-p/75,C:0.286Vp-p/75 Maximum Input Level1.5Vp-p Signal-to-Noise Ratio50dB Monitor Output Frequency Response(3dB) 5Hz10MHz G DIMENSIONS Units: mm (inch) 21.5 (7/8) 435(17-1/8) 349.5(13-3/4) 390.

34、5(15-3/8) 130(5-3/32) 151(5-15/16) 19.5 (13/16) 21 (27/32) WARNING Do not change the IMPEDANCE SELECTOR switch setting while the power to this unit is on, otherwise this unit may be damaged. IMPEDANCE SELECTOR Manufactured under license from Digital Theater Systems, Inc. US Pat. No. 5,451,942 and ot

35、her world- wide patents issued and pending. DTS, DTS Digital Surround, are trademarks of Digital Theater Systems, Inc. Copyright 1996 Digital Theater Systems, inc. All rights reserved. Manufactured under license from Dolby Laboratories. DOLBY, AC-3, PRO LOGIC, and the double-D symbol are trademarks

36、of Dolby Laboratories. Confidential unpublished works. 1992-1997 Dolby Laboratories. All rights reserved. BL.Black model TI.Titan model GD.Gold model 7 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.) 1. Removal of Top Cover Remove 4 s

37、crews (1) and 4 screws (2) in Fig. 1. 2. Removal of Front Panel a. Remove 5 knobs. b. Remove 6 screws (3) in Fig. 1. 3. Before Checking and Parts Replacement of Main Amplifier P.C.B. MAIN (1) a. Remove 2 screws (4) fixing the Main Speaker terminal in Fig. 2. b. Take out the P.C.B. MAIN (3) to Left s

38、ide in Fig. 4. c. Remove 3 screws (5) fixing the Center/Rear Speaker terminal and the Heat Sink in Fig. 2. d. Remove the Binding Tie fixing P.C.B. MAIN (1)s wiring in Fig. 3. Note) When the assembling , P.C.B. MAIN (1)s wiring regardfully for ungenerated noise induction. e. Remove 2 screws (6) fixin

39、g the Main Unit in Fig. 3. f.While pull out the Main Unit to the Front Panel side, place the Main Unit on its side as shown in Fig. 4. g. Connect to ground by shorting between G201 on P.C.B. MAIN (1) and the chassis. Note) When unconnected to ground, the protection function is active. h. Insert the

40、insulator seet (Cloth, Paper or equivalent) so that unshorted the between bottom side of P.C.B. MAIN (1) and the chassis. i.Insert the insulator seet (Cloth, Paper or equivalent) so that unshorted the between back side of Front Panel and the Heat Sink. j.Using a string, fix the between screw-hole of

41、 the Heat Sink and screw-hole of the Front Panel in Fig. 4. Fig.1 Fig.2 Fig.3 Fig.4 1 POWER TRANSFORMER 2 P.C.B. MAIN (6) 3 P.C.B. MAIN (5) 4 P.C.B. MAIN (2) 5 P.C.B. MAIN (7) (R, T models only) 6 P.C.B. MAIN (3) 7 P.C.B. MAIN (1) 8 P.C.B. OPERATION (5) 9 P.C.B. OPERATION (6) 0 P.C.B. INPUT (3) A P.

42、C.B. INPUT (1) B P.C.B. TUNER C P.C.B. OPERATION (7) D P.C.B. MAIN (4) E P.C.B. INPUT (2) F P.C.B. OPERATION (2) G P.C.B. OPERATION (1) H P.C.B. OPERATION (4) I P.C.B. OPERATION (3) J P.C.B. INPUT (4) K P.C.B. DSP I INTERNAL VIEW Front Panel 4Center/Rear Speaker Terminal 5Rear Panel Main Speaker Ter

43、minal Top Cover Knob BA0987654321 KJIHGFDEC 1 2 1 3 3 Main Unit Heat Sink Heat Sink Front Panel String 6 Binding Tie P.C.B. MAIN (1) Main Unit P.C.B. MAIN (1) ChassisP.C.B.MAIN (3) 6 G201 8 RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS I SELF DIAGNOSIS FUNCTION 1. PURPOSE AND OPERATION The RX-V496/RX-V496

44、RDS/HTR-5240/HTR 5240RDS has a Self Diagnosis Function to locate a faulty part, if any, by inspecting and taking measurements. There are 12 main items in the diagnostic menu and sub-menu items as listed below. No. 1 2 3 4 5 6 7 8 9 10 12 SUB-MENU 1. MAIN BYPASS 2. DSP 0dB 1. YSS+SRAM M 2. YSS M 3. D

45、SP FULL BIT 1. STATUS (BINARY FORM) 1. CENTER LARGE 2. EFFECT OFF 1. MAIN : SMALL 0dB 2. MAIN : LARGE 0dB 3. MAIN : LARGE 10dB 4. LFE/BASS : MAIN CENTER : NONE 5. LFE/BASS : MAIN 6. LFE/BASS : SUBWOOFER 7. CENTER : NONE 8. CENTER : SMALL REAR : SMALL 9. FRONT MIX 1. (EFFECT OFF) 2. ALL SEGMENTS TURN

46、 OFF 3. ALL SEGMENTS TURN ON 4. ALTERNATE SEGMENTS TURN ON 5. SOFTWARE RELEASE DATE 1. ALL 2. MAIN L 3. CENTER 4. MAIN R 5. REAR R 6. REAR L 7. LFE 1. INHIBIT (Inhibit Memory Initialize) 2. RESERVED (Reserve Memory Initialize) 1. 2. KEY1, KEY2 3. TUNER SIGNAL LEVEL 5. PS PROTECTION 1./2. DSP STATUS (1)/(2) 3./4. CHANNEL STATUS (1)/(2) 5./6. BSI0 (1)/(2) 7./8. BSI1 (1)/(2) 9./10. BSI2 (1)/(2) 11./12. BSI3 (1)/(2) 13./14. BSI4 (1)/(2) 15./16. BSI5 (1)/(2) 1. CHECK SUM 2. VERSION 3. PORT SETTING 4. EXIT MAIN MENU ANALOG THROUGH DSP T