Yamaha-DSP-A5-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. 100712 AV AMPLIFIER DSP-A5 TO SERVICE PERSONNEL . 1 REMOTE CON

7、TROL PANELS. 1 REAR PANELS . 2 SPECIFICATIONS. 34 INTERNAL VIEW . 5 DISASSEMBLY PROCEDURES . 5 SELF DIAGNOSIS FUNCTION . 617 FACTORY PRESET . 18 ICONTENTS AMP ADJUSTMENT . 19 IC DATA .2028 DISPLAY DATA . 29 BLOCK DIAGRAM. 3031 PRINTED CIRCUIT BOARD . 3247 SCHEMATIC DIAGRAM . 4853 PARTS LIST . 5469 R

8、EMOTE CONTROL TRANSMITTER . 70 RadioFans.CN 收音机爱 好者资料库 DSP-A5 E-30/J-28E-31/J-29 I BLOCK DIAGRAM 10 11 21 20 6-CH SELECTOR IC102 26 25 27 6 5 4 8 9 7 22 23 24 OPERATION KEY SW503-510 439328196421 12 20 16 63 99 46 RESET Q503,D502 POWER DOWN DETECT Q504,D510,511 BACK-UP (MEMORY) IC502 D512 REGULATOR

9、Q802, D803 1264 65 43226146 U501 /ST SCK SDT METER TCE F1 F2 /RES PRIPRDLIMDTVUP VDN DSP CONTROL CEAC2 CEAC1 CLKAC TXAC RXAC CECOD /ICD /CSD INTD SCKD SID SOD /FMT PDT +5BU +5M PRY VP STANDBY/ON SW502 PSW ROT-A ROT-B KEY1 KEY2 G1-16 P1-22 D508 +B B +25 -25 F802 J802 J802 F801 Q801 RY801 S12 REMOTE S

10、ENSOR FL DISPLAY V501 D509 , 1819, , 98 9613154653 RCE RDT DEST/RDO RCK 14 3 14 15 2 2 15 3 57 IC402A INPUT SELECTOR CONTROL 31 IC402B 31 IC403A 57 IC403B 57 IC114A 31 IC114B 57 IC112A 31 IC112B MUTE DRIVE Q501, 502 LIMITTER IC113 IC111 LEVEL CONTROL LEVEL CONTROL 6 GANG MOTOR VOLUME VR401 TONE CONT

11、ROL IC581 BASS VR581 TREBLE VR582 VR583 -10dB MAIN LEVEL Q107 BALANCE Q119 Q120 Q110 Q114 Q112 Q102 MUTING Q521 Q526,Q529 Q527A/C Q522 Q530,Q533 Q531A/C Q523 Q534,Q537 Q531A/C Q525 Q542,Q545 Q543A/C Q540 Q536 Q532 D521 D532 -B-B Q557 Q554 Q544 D527 D501 D506 Q510 Q519 Q520 MAIN POWER AMP CENTER POWE

12、R AMP REAR POWER AMP RY501 RY502 RY503 L R MAIN CENTER L R SUBWOOFER REAR (SURROUND) OUTPUTOUTPUT SPEAKERS + L + R + REAR (SURROUND) CENTER A B L A B R MAIN PHONES +12 -12 Q555 ERY Q553 SRY Q549,550 RY503 REAR SPEAKER RY502 CENTER SPEAKER RY501 MAIN SPEAKER SPEAKER RELAY DRIVE PS PROTECTION DETECT O

13、VER CURRENT PROTECTION DETECT DC PROTECTION DETECT SIGNAL LEVEL DETECT CENTER MAIN REAR VCR PHONO CD L R L R L R L R L R L R CBL/SAT D-TV IN OUT VCR IN (PLAY) L R L R TAPE/MD L R MAIN CENTER L R SUBWOOFER SURROUND EXTERNAL DECODER INPUT AUDIO SIGNAL DIGITAL SIGNAL L R VIDEO AUX INPUT SELECTOR IC101

14、13 2 223028 29 TAPE MONITOR IC102 VIDEO AUX DVD/LD CBL/SAT IN D-TV OUT VCR VIDEO SELECTOR & AMP IC301 MONITOR OUT MONITOR OUT S-VIDEO SELECTOR & AMP IC351,352 IN DVD/LD CBL/SAT D-TV OUT VIDEO AUX VCR T801 D751 D451 D452 MAIN, CENTER, REAR AMP RDS CONTROL (NOT USED) INPUT SELECTOR CONTROL LIMITTER CO

15、NTROL DRIVE -10dB CONT- ROL DRIVE OUTPUT PORT EXPANSION IC107 TUNER CONTROL (NOT USED) M IC404 Q552 D513 INPEDANCE SELECTOR SW761 POWER TRANS- FORMER D804-807 Q506 Q511 Q512 Q507 Q513 Q514 Q508 Q515 Q516 Q524 Q538,Q541 Q539A/C Q509 Q517 Q518 MAIN POWER AMP CENTER POWER AMP REAR POWER AMP SPEAKER REL

16、AY SPEAKER SELECTOR SWITCH SUB WOOFER CENTER 5724 IC110A 3123 IC110B 3125 IC13A 5726 IC13B LFE C RL SW1 SW2 SW3 SW4 SW5 RR 5727 IC11A 3128 IC11B 67 IC108A FL FR 67 IC109A INHIBIT IC101 11 12 18 17 5 7 19 IC10A 3 1 17 IC10B L+ 618 L- R+ 216 R- 1 D/A CONVERTER IC7 6 IC106B 4 IC106A 8 6 47 45 247 42 IC

17、103 30 2729 IC103 IC103 IC103 31 IC108B Q106 IC8,9 OPTICAL OPTICALD-TV DVD/LD 811 IC371 COAXIAL DIGITAL FORMAT INTERFACE RECEIVER IC3 STATIC RAM IC5 3 9 5 9 10 XL1 (24.576MHz) 84 COAXIAL/OPTICAL SELECTOR IC373 DIGITAL INPUT SELECTOR IC395 MICROCOMPUTER IC501 COAXIAL SIGNAL DETECTOR IC371 8 9 13 IC2

18、DIBDIA 29 32 31 20 7 5 4 3 57 IC401B 31 IC401A 6249 , 888966 , 44 DO 41 42 A B SW501 INPUT SELECTER VR401 SDT SCK CETC MOTOR DRIVE 369590924035 1091112 2327242625384539177837 85 H.P.F 34 5 8 IC103 IC103 SW711 +B,-B,+25,-25, +12,-12,+5,-5D 914748 PRV 100 D503 Q721, 722 +5 +5D D453 IC721, 722 IC723, 7

19、25 D759, 764, 762, 763 BL,-BL 57 31 57 IC582A 31 IC582B 31 IC109B H.P.F 2627 26 23 IC103 IC103 VIDEO SIGNALS VIDEO SIGNAL 1 3 OUT (REC) 4 (R,T models) (J,B,G models) J807 XL501(10MHz) XOUT REM XIN CKB Q124,125Q121 AC OUTLETS AC OUTLETS AC OUTLET G model B model J,R,T models Q548 Q546,547 SCK CELC 29

20、 15 /TMUTE CETC 30 SDT /CONT1 /CONT2 /-10dB /ICAC 2 34 5 6 7 8 10 DTB 211 INPUT SELECTOR CONTROL INPUT SELECTOR CONTROL DIR5 DAC D/A CONVERTER IC6(2/2) CODEC DAC A/D CONVERTER IC6(1/2) CODEC ADC SCKD SID INTD SOD /CSD /ICD CLKAC TXAC CECOD CEAC2 CLKAC RXAC TXAC CEAC1 /ICAC CLKAC TXAC CECOD 1M SRAM A

21、C3D2av DSP + DIGITAL/ PRO-LOGIC/ DTS DECODER IC4 YSS918D-FOPTICAL CBL/SAT 811 IC372 COAXIAL COAXIAL/OPTICAL SELECTOR IC374 COAXIAL SIGNAL DETECTOR IC372 BL,-BL 3332 1 8 2 L R TUNER2 13 7 DVD/LD L R 5 IC104A/B See page E-49/J-47 SCHEMATIC DIAGRAM INPUT (2/2) See page E-53/J-51 SCHEMATIC DIAGRAM MAIN

22、(2/2),POWER See page E-51/J-49 SCHEMATIC DIAGRAM DSP See page E-53/J-51 SCHEMATIC DIAGRAM MAIN (2/2), POWER See page E-50/J-48 SCHEMATIC DIAGRAM OPERATION See page E-52/J-50 SCHEMATIC DIAGRAM MAIN (1/2) See page E-49/J-47 SCHEMATIC DIAGRAM INPUT (2/2) See page E-48/J-46 SCHEMATIC DIAGRAM INPUT (1/2)

23、 See page E-50/J-48 SCHEMATIC DIAGRAM OPERATION See page E-52/J-50 SCHEMATIC DIAGRAM MAIN (1/2) RadioFans.CN 收音机爱 好者资料库 1 DSP-A5 I TO SERVICE PERSONNEL 1. Critical Components information Components having special characteristics are marked ! and must be replaced with parts having specifications equa

24、l 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 shunted by 0.15F.

25、 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) components may also c

26、ontain 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! Avoid prolonged, unpro

27、tected 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 M R and T modelsM

28、B and G models WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE D V D / L D DSPINPUT MOVIE THTR 1 MONO MOVIETV SPORTSDISCO ROCKHALL EXT.DEC.INDEXEFFECT /DTS SUR. MOVIE THTR 2 2 TUNER 3 TAPE/MD 1 CD 5 D-TV 6 VCR 4 DVD/LD 8 CBL/SAT 9 V-AUX 7 PHONO ENTER10 + + - + - 0 A

29、/B/C/D/E POWER SELECT AV DIR ADIR B DISC SKIP PRESET CHCH A/B DISPLAYVCR REC TEST MENUTITLE TV POWER TV SLEEPVOLUMETV VOL MUTE INPUT STANDBYPOWER I SET MENUTIME/LEVEL RAV210 V429760 US - C O D E S E T D V D / L D DSPINPUT MOVIE THTR 1 MONO MOVIETV SPORTSDISCO ROCKHALL EXT.DEC.INDEXEFFECT /DTS SUR. M

30、OVIE THTR 2 2 TUNER 3 TAPE/MD 1 CD 5 D-TV 6 VCR 4 DVD/LD 8 CBL/SAT 9 V-AUX 7 PHONO ENTER10 + + - + - 0 A/B/C/D/E POWER SELECT AV DIR ADIR B DISC SKIP PRESET CHCH A/B DISPLAYVCR REC TEST MENUTITLE TV POWER TV SLEEPVOLUMETV VOL MUTE INPUT STANDBYPOWER I SET MENUTIME/LEVEL RAV211 V429770 EU - C O D E S

31、 E T 2 DSP-A5 M T model M B model M G model M R model I REAR PANELS 3 DSP-A5 I SPECIFICATIONS IAUDIO SECTION Minimum RMS Output Power Per Channel (Power Amp. Section) 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

32、, 880W Maximum Power (EIAJ) R, T models only MAIN L/R, REAR L/R 1kHz, 10% THD, 8105W+105W CENTER, 1kHz, 10% THD, 8105W Dynamic Power Per Channel (IHF) MAIN L/R 8/6/4/2 90W+90W/110W+110W/135W+135W/160W+160W DIN Standard Output Power Per Channel G model only MAIN L/R, REAR L/R 1kHz, 0.7% THD, 4110W+11

33、0W CENTER, 1kHz, 0.7% THD, 4110W IEC Power G model only MAIN L/R, 1kHz, 0.06% THD, 875W+75W Damping Factor (SPEAKER A) MAIN L/R, 20Hz to 20kHz, 880 Input Sensitivity/Input Impedance PHONO (MM)2.5mV/47k CD etc.150mV/47k MAIN L/R (EXTERNAL DECODER)150mV/47k CENTER150mV/40k SURROUND L/R150mV/40k SUB WO

34、OFER150mV/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 PRE OUT2.1V/1.2K SUB WOOFER (MAIN SP : SMALL)4V/1.2K Headphone Jack Rated Output/Impedance CD etc., Input=1kHz, 150mV, RL=80.34V/560 Frequency R

35、esponse(10Hz to 100kHz) CD etc., MAIN0/-3dB 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) 0.06% Signal-to-Noise Ratio(IHF-A Network) PHONO (MM), Input shorted, REC OUT R, T models86dB B,

36、 G models81dB CD etc,(EFFECT OFF), Input shorted, SP OUT 99dB Residual Noise(IHF-A Network) MAIN L/R, SP OUT150V Channel Separation(Vol. 30dB, EFFECT OFF) PHONO, Input shorted, 1kHz/10kHz60dB/55dB CD etc, Input 5.1k terminated, 1kHz/10kHz 60dB/45dB Tone Control Characteristics BASS: Boost/Cut10dB(50

37、Hz) : Turnover Frequency350Hz TREBLE: Boost/Cut10dB(20kHz) : Turnover Frequency3.5kHz Filter Characteristics MAIN, REAR SP SMALL : H.P.F.fc=90Hz, 12dB/oct. SUB WOOFER : L.P.F.fc=90Hz, 18dB/oct. IVIDEO SECTION Video Signal Type R modelNTSC/PAL T, B, G modelsPAL Video Signal Level1Vp-p/75 S-Video Sign

38、al LevelY:1Vp-p/75,C:0.286Vp-p/75 Maximum Input Level1.5Vp-p Signal-to-Noise Ratio50dB Monitor Output Frequency Response(3dB) 5Hz10MHz IGENERAL Power Supply R modelAC110/120/220/240V, 50/60Hz T modelAC220V, 50Hz B, G modelsAC230V, 50Hz Power Consumption R, T models310W B, G models300W Standby Power

39、Consumption B, G models0.89W Maximum Power Consumption R model only 5CH Simultaneous output, 10% THD510W AC Outlet R, T models, Switched x 3100W max(Total) B model, Switched x 1100W max G model, Switched x 2100W max(Total) Dimensions(W x H x D)435 x 151 x 390.5mm (17-1/8 x 5-15/16 x 15-3/8) Weight11

40、.2kg(24Ibs. 11 oz) AccessoriesRemote Control Transmitter x 1 Battery (size AAA, R03) x 4 * Specifications subject to change without notice. R . General modelB . British model T. China modelG . European model R,T models GD (Gold model) B model BL (Black model) G model BL (Black model) and TI (Titan m

41、odel) 4 DSP-A5 G DIMENSIONS Units: mm (inch) 21.5 (7/8) 435(17-1/8) 349.5(13-3/4) 390.5(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 Manu

42、factured under license from Dolby Laboratories. DOLBY, AC-3, PRO LOGIC, and the double-D symbol are trademarks of Dolby Laboratories. Confidential unpublished works. 1992-1997 Dolby Laboratories. All rights reserved. Manufactured under license from Digital Theater Systems, Inc. US Pat. No. 5,451,942

43、 and other 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. 5 DSP-A5 I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.) 1. Removal of Top Cover R

44、emove 4 screws (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. Fig.1 1 POWER TRANSFORMER 2 P.C.B. POWER (2) 3 P.C.B. POWER (7) (B,G models only) 4 P.C.B. MAIN (3) 5 P.C.B. POWER (6) (R,T models only) 6 P.C.B. MAIN (4) 7 P.C.B. POWER (4)

45、(R,T models only) 8 P.C.B. MAIN (2) 9 P.C.B. MAIN (1) 0 P.C.B. POWER (3) A P.C.B. INPUT (1) B P.C.B. INPUT (4) C P.C.B. INPUT (3) D P.C.B. INPUT (2) E P.C.B. INPUT (5) F P.C.B. POWER (5) G P.C.B. MAIN (5) H P.C.B. OPERATION (3) I P.C.B. OPERATION (1) J P.C.B. MAIN (6) K P.C.B. POWER (1) L P.C.B. OPE

46、RATION (2) M P.C.B. DSP I INTERNAL VIEW Front Panel Top Cover 11111 11111 22222 33333 33333 Knobs 6 DSP-A5 I SELF DIAGNOSIS FUNCTION 1. PURPOSE AND OPERATION The DSP-A5 has a Self Diagnosis Function to locate a faulty part, if any, by inspecting and taking measurements. There are 12 main items in th

47、e diagnostic menu and have 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. DSP 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