Yamaha-DSPE800-avr-sm 维修电路原理图.pdf

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1、DSP-E800DSP-E800DSP-E800100719AV PROCESSOR/AMPLIFIERSERVICE MANUALI CONTENTSTO SERVICE PERSONNEL . 1REAR PANELS . 1SPECIFICATIONS . 2INTERNAL VIEW . 3DISASSEMBLY PROCEDURES . 34ADJUSTMENTS . 5SELF DIAGNOSIS FUNCTION. 617FACTORY PRESET . 18IC DATA . 1927DISPLAY DATA . 28PIN CONNECTION DIAGRAM . 29BLO

2、CK DIAGRAM . 3031PRINTED CIRCUIT BOARD . 3241SCHEMATIC DIAGRAM . 4247PARTS LIST . 4859REMOTE CONTROL TRANSMITTER. 60This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherant to the industry, and mor

3、e specifically YAMAHA Products, are already known andunderstood 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 prod

4、uct to perform as specified. For these reasons, we advise allYAMAHA product owners that all service required should be performed by an authorized YAMAHA Retailer or theappointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute aut

5、horization, certification orrecognition 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 servicedepartments of YAMAHA are

6、 continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specificationsare subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors ServiceDivision.WARNING:Static discharges can destroy e

7、xpensive components. Discharge any static electricity your body may have accumulated bygrounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the

8、 unit.IMPORTANT NOTICERadioFans.CN 收音机爱 好者资料库DSP-E800DSP-E800M G modelI REAR PANELSM B model1I TO SERVICE PERSONNELCritical Components InformationComponents having special characteristics are marked Zand must be replaced with parts having specifications equalto those originally installed.AC LEAKAGET

9、ESTER OREQUIVALENTEQUIPMENTUNDER TESTINSULATINGTABLEWALLOUTLETIMPEDANCE SELECTORWARNINGDo not change the IMPEDANCE SELECTOR switchsetting while the power to this unit is on, otherwisethis unit may be damaged.RadioFans.CN 收音机爱 好者资料库DSP-E800DSP-E8002I AUDIO SECTIONMinimum RMS Output Power per ChannelC

10、ENTER20Hz to 20kHz, 0.06% THD, 870W1kHz, 0.09% THD, 880WREAR20Hz to 20kHz, 0.06% THD, 870W+70W1kHz, 0.09% THD, 880W+80WDynamic Power per Channel (IHF)REAR, 890W+90WREAR, 6110W+110WREAR, 4135W+135WREAR, 2160W+160WDIN Standard Output Power per Channel (G model only)CENTER, 1kHz, 0.7% THD, 4110WREAR, 1

11、kHz, 0.7% THD, 4110W+110WIEC Power (G model only)CENTER, 1kHz, 0.04% THD, 875WREAR, 1kHz, 0.04% THD, 875W+75WDamping FactorCENTER, REAR, 20Hz to 20kHz, 8100 or moreInput Sensitivity/ImpedanceCD, etc.150mV/47k6 CH INPUT (Ext. D.)MAIN150mV/47kCENTER, REAR, SUBWOOFER150mV/40kMaximum Input Signal1kHz, 0

12、.5% THD, CD, etc. (EFFECT ON)2.2VOutput Level/ImpedanceREC OUT150mV/1.2kPRE OUT MAIN, CENTER, REAR1V/1.2kPRE OUT SUBWOOFER (MAIN SP: SMALL)4V/1.2kFrequency Response10Hz to 100kHz, CD, etc. MAIN0/ - 3dBTotal Harmonic DistortionDISCRETE inputs to REAR SP OUT(20Hz to 20kHz, 35W/8)0.06%Signal to Noise R

13、atio (IHF-A-Network)CD, etc. (EFFECT OFF) (S: 150mV)MAIN PRE OUT99dBResidual Noise (IHF-A-Network)CENTER, REAR, SP OUT150VChannel Separation (Vol. 30dB)CD, etc. (EFFECT OFF) (Input 5.1k Shorted)1kHz/10kHz60dB/45dBFilter CharacteristicsMAIN, REAR SP SMALL : H.P.F.fc = 90Hz, 12dB/oct.SUBWOOFER : L.P.F

14、.fc = 90Hz, 18dB/oct.I SPECIFICATIONSI GENERALPower SupplyB, G modelsAC 230V, 50HzPower ConsumptionB, G models180WStandby Power Consumption (reference data)B, G models0.85WAC OutletsSwitched x 1100W max.Dimensions (W x H x D)435 x 126 x 391mm(17-1/8” x 4-15/16” x 15-3/8”)Weight10.0 kg (22 lbs. 1 oz)

15、FinishG modelGold color/Titanium color/Black colorB modelBlack colorAccessoriesRemote Control Transmitter x 1Battery (size AA, R06) x 2G DIMENSIONS* Specifications subject to change without notice.B . British modelG . European modelI VIDEO SECTIONVideo Signal TypeB, G modelsPALComposite Video Signal

16、 Level1Vp-p/75S-Video Signal LevelY1Vp-p/75C0.286Vp-p/75Video Maximum Input Level1.5Vp-pVideo Signal to Noise Ratio50dBMonitor Output Frequency ResponseComposite Video Signal5Hz10MHz, 3dBS-Video Signal5Hz10MHz, 3dBUnits : mm (inch)Manufactured under license from Dolby Laboratories.Dolby, AC-3, Pro L

17、ogic, and the double-D symbol Vare trademarks of Dolby Laboratories. 1992-1997 DolbyLaboratories. All rights reserved.Manufactured under license from Digital Theater Systems,Inc. US Pat. No. 5,451,942 and other world-wide patentsissued and pending. DTS, DTS Digital Surround, aretrademarks of Digital

18、 Theater Systems, Inc. copyright1996 Digital Theater Systems, inc. All rights reserved.349.5 (133/4)391 (153/8)20(13/16)21.5(7/8)435 (171/8)16(5/8)110(45/16)126(415/16)DSP-E800DSP-E8003I INTERNAL VIEWqMAIN (2) P.C.B.wMAIN (1) P.C.B.eINPUT (1) P.C.B.rINPUT (3) P.C.B.tMAIN (5) P.C.B.yMAIN (4) P.C.B.uD

19、SP P.C.B.iOPERATION (2) P.C.B.I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.)1. Removal of Top Covera. Remove 4 screws (q) and 4 screws (w) in Fig. 1.2. Removal of Front Panela. Remove 6 screws (e) in Fig. 1.3. Removal of Operation (2) P.C.B.a. Remove the Volume knob.b. Dis

20、connect a flat connecting cable (CB801) in Fig. 1.c. Remove a nut (r) and then remove the Operation (2)P.C.B. in Fig. 1.Fig. 1qerwtyuiTop CoverwwqeFront panelqerOperation (2) P.C.B.CB801DSP-E800DSP-E80044. Removal of Input (3) P.C.B.a. Remove 6 screws (t) and then remove the Input (3)P.C.B. in Fig.

21、2.5. Removal of Input (1) P.C.B.a. Remove 6 screws (y) in Fig. 2.b. Disconnect 2 flat connecting cables (CB402, CB406)and a connector (CB410) in Fig. 3.c. Remove 3 screws (u) and then remove the Input (1)P.C.B. in Fig. 3.Fig. 3Fig. 2Fig. 4tytuiShield Case/TopDSP P.C.B.Input (1) P.C.B.CB402CB406Input

22、 (3) P.C.B.6. Removal of DSP P.C.B.a. Remove 2 screws (i) and then remove the ShieldCase/Top with the DSP P.C.B. in Fig. 4.Note :1.When the rear panel has been removed, the groundconnection at the input/output pin jack becomes open.Connect it to the chassis by using a lead wire.Input (3) P.C.B.CB410

23、DSP-E800DSP-E800Fig. 5Fig. 6!1o!0o!2!2!3Fig. 74-17. Checking the Amplifier Unit and ReplacingComponentsa. Turn off the power switch and unplug the powerplug from the AC outlet.b. Remove 9 screws ( o, !0, !1 ) indicated in Fig. 5.c. Remove 5 screws ( !2, !3 ) indicated in Fig. 6.d. Loosen the wire ri

24、ng, which fixes the wire harness.e. After removing the Amplifier Unit / Main (2) P.C.B,lift up the rear of the Amplifier Unit with a wire andset it as shown in Fig. 7.f. Use an insulating material (a rather thick cloth) soas to prevent the Amplifier Unit / Main (2) P.C.B.from contacting other P.C.Bs

25、, chassis and powertransformer.g. Using a lead wire, connect the grounding of the pinjack to the chassis.(If it is left unconnected, the grounding floats andthe unit may fail to function properly.)h. Connect the power plug and turn on the powerswitch.Amplifier UnitMain (2) P.C.B.ClothWireDSP-E800DSP

26、-E8004-2MEMODSP-E800DSP-E8005I ADJUSTMENTSGConfirmation of Idling Current1) No signal applied.2) Non-loaded condition.3) Aging is not neccessary.Test PointCB103R161 or R163R167 or R169Rating (DC)0.1mV5mVNoteItemREAR LREAR RCENTERIf the measured voltage exceeds 5.1mV, cut thelead wire of R133(RL ch),

27、 R142(RR ch) or R150(Cch) and then check again if each measured valuesatisfies the rating.CutR133 (RL ch)R142 (RR ch)R150 (C ch)Note) If R133 (RL ch), R142 (RR ch) or R150 (C ch) have already been cutoff and idling current does not flow, reconnect R133 (470), R142(470) or R150 (470). Q107, Q109 and

28、Q111 are transistors for temperature compensation.Apply silicone grease to the contact surface with the heat sink.0.1mV 5mV (DC)CB103 (RL ch)0.1mV 5mV (DC)R161 or R163 (RR ch)R167 or R169 (C ch)* Confirm that the voltage is 0.127.5mV after 60 minutes.R161R163R167R169R150R142R133CB103Q107Q111Q109DSP-

29、E800DSP-E8006I SELF DIAGNOSIS FUNCTION1. PURPOSE AND OPERATIONThe DSP-E800 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 with sub-menu items as listed below.No.1234567891012SUB-MENU1. MAIN BYPASS2. DSP 0

30、dB1. YSS+SRAM M2. YSS M3. DSP FULL BIT1. STATUS (BINARY FORM)1. CENTER LARGE2. EFFECT OFF1. MAIN : SMALL 0dB2. MAIN : LARGE 0dB3. MAIN : LARGE 10dB4. LFE/BASS : MAINCENTER : NONE5. LFE/BASS : MAIN6. LFE/BASS : SUBWOOFER7. CENTER : NONE8. CENTER : SMALLREAR : SMALL9. FRONT MIX1. (EFFECT OFF)2. ALL SE

31、GMENTS TURN OFF3. ALL SEGMENTS TURN ON4. ALTERNATE SEGMENTS TURN ON5. SOFTWARE RELEASE DATE1. ALL2. MAIN L3. CENTER4. MAIN R5. REAR R6. REAR L7. LFE1. INHIBIT (Inhibit Memory Initialize)2. RESERVED (Reserve Memory Initialize)1. 2. KEY1, KEY23. TUNER SIGNAL LEVEL5. PS PROTECTION1./2. DSP STATUS (1)/(

32、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. VERSION and CHECK SUM2. MODEL TYPE and DESTINATION3. EXITMAIN MENUANALOG THROUGHDSP THROUGHAC3/DTS THROUGHPRO LOGICSPEAKERS SETDISPLAY CHECK(EFFECT OFF)

33、MANUAL TESTFACTORY PRESETAD DATA CHECKSTATUS INFORMATION FROM DSPUNIT INFORMATION/EXITREMOTE CONTROL CODE (KEY)7D04 (1)111. CHECK SUM MODIFICATION DATA EEPROM DATA2. WRITING CONFIRMATION3. START WRITINGEEPROM WRITINGFUNCTION 7D05 (2) 7D06 (3) 7D07 (4)7D08 (5)7D09 (6)7D0A (7)7D0B (8)7D1A (TEST)7D51 (

34、SET MENU) 7D-57 (SLEEP)7D-1D (EFFECT) 4. DC PROTECTION DSP-E800DSP-E80071.2.3.4.5.6.7.EFFECT LEVEL:MUTING: OFFINPUT (VIDEO): DVD/LD (DVD/LD)CENTER SPEAKER: LARGEREAR SPEAKER: LARGEMAIN SPEAKER: LARGELFE/BASS OUT: SWFRCHANNELCENTERR SURL SURSWFRLEVEL (dB)0000C. Start-up displayThe protection history

35、information appears on the front panel display.2. BEGINNING AND CANCELLATION(1) Up the function and the displayUp sub-menu No.1 of the diagnosis main is selected.A. How to start the diagnostic programUse the front panel keys of the main unitPlug in the AC power cord. With the Power OFF, hold down th

36、e PROGRAM and EFFECT keys simultaneously (Step 1), then press the STANDBY/ON key (Step 2).Sub menu No. 1 of the diagnosis main menu No. 1 will start.B. Settings for start-up of diagnostic programThe settings used when starting the diagnostic program are as follows.EFFECT keySTANDBY/ON keyPROGRAM key

37、FRONT PANELStep2. Press the STANDBY/ON key.Step1. Hold down the PROGRAM and EFFECT key simultaneously.DSP-E800DSP-E8008G Protection history functionThe following examples show how the protection history is displayed:Appears when the protection function has not been activated.Displayed the check sum

38、(4-digit, hexadecimal) and the version (one letter) of the main microcomputer.Appears when the current protection function has been activated.When power is turned on in an abnormal condition, the power relaywill come on, protection will operate immediately, and power willturn off.Appears when the po

39、wer supply protection function has been activated.For the % value, the voltage at that point is shown by 5V/100%.When power is turned on in an abnormal condition, power will turn offafter half a second.Appears when the power amp DC protection function has been activated.For the % value, the voltage

40、at that point is shown by 5V/100%.When power is turned on in an abnormal condition, power will turn offafter two seconds.G FL display at start-up of diagnostic programWhen the diagnostic program has started, the check sum of the main microcomputer or the protection history (*)is displayed. If the pr

41、otection function has been activated in the past, the type and voltage value are displayed. After a few seconds the diagnosis function menu will appear.(*)If a faulty condition is detected such as excessive current, a bad power supply or excessive amplifier DC offset, the Power will be switched OFF

42、automatically.NOTE: For the voltages of the power and DC protection functions, see the diagnosis main menu No. 9, which will bedescribbed later. The protection history will be cleared when RESERVED is selected in the diagnosis main menuNo. 8 and FACTORY PRESET is engaged.D. Exiting methodThe diagnos

43、is function can be exited by any of the following procedures. Take care with the setting of backup memoryinitialization menu (diagnosis No. 8) when releasing the diagnosis function.1. Select sub-menu No. 3 EXIT of the diagnosis main menu No. 12.2. Press the STANDBY/ON key on the main unit or STANDBY

44、 key on the remote control to turn Power OFF.CHK SUM: XXXX XIPROTECT I ONPS PRT:XX%DC PRT:XX%DSP-E800DSP-E8009G Selection by using the remote control unitThe remote control codes in the menu list (see right columnon page 6) correspond to the DSP program, test, set menu, sleep and effect keys. See th

45、e figure on the right.3. OPERATION AND DISPLAY WHEN STARTING DIAGNOSIS FUNCTION(1) Selection of diagnostic menuThe diagnostic menu and the sub-menu can be selected by using the front panel keys of the main unit or the remotecontrol unit.G Selection by using the front panel keys of the main unitThe m

46、ain menu can be changed cyclically by using the SET MENU /+ keys, and the sub-menu, by using thePROGRAM / keys. The + and key will increase the main or sub-menu number.(2) Other functions available while diagnosis function is activeListed below are the other functions available while the diagnosis f

47、unction is active. Selection of the input (include TAPE MONITOR/EXTERNAL DECODER) Effect level control (CENTER, REAR, SUBWOOFER) Master volume control Muting on/off Power on/off(3) Diagnosis default statusWhen not otherwise specified, default settings and values in each menu are as follows: All “SPE

48、AKERS” : LARGE ALL electronic VRs : 0dB DYNAMIC RANGE : MAX LFE LEVEL : 0dB (10dB in AC-3(DOLBY DIGITAL) CENTER DELAY : 0msFRONT PANELMain menuSub-menuReverseForwardReverseForward04070A1A57050609080B1D51DSP-E800DSP-E800104. CONTENTS OF DIAGNOSIS FUNCTIONThis section describes the contents of the Sel

49、f Diagnosis Function in detail. No.1 ANALOG THROUGHThe input is fixed to analog (A/D). There are two sub-menus.1. MAIN BYPASSThe L/R signals bypass the digital circuit, and are output to the MAIN L/R.The L/R signals are output without being processed to the CENTER/SUBWOOFER, FRONT L/R and REAR L/R t

50、hrough the DSP. (Remote control code 7D-04: 1 key): This shows that the device is not operating.2. DSP 0dBThe L/R signals are output without being precessed to the MAIN L/R through the AC3D2av.The L/R signals are output without being precessed to the CENTER/SUBWOOFER, FRONT L/R and REAR L/R through