Denon-PMA710AE-int-sm维修电路原理图.pdf

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1、D&M Holdings lnc.eCopyright 2011 D&M Holdings Inc. All rights reserved.WARNING: Violators will be prosecuted to the maximum extent possible.SERVICE MANUALINTEGRATED STEREO AMPLIFIERMODELJPE3E2EKE2AE1CE1KEUTPMA-710AE?Ver. 8For purposes of improvement, specifications and design are subject to change w

2、ithout notice.Please use this service manual with referring to the operating instructions without fail.Some illustrations using in this service manual are slightly different from the actual set.S0279-0V08DM/DG1105Please refer to theMODIFICATION NOTICE.RadioFans.CN 收音机爱 好者资料库2PMA-710AEPlease heed the

3、 points listed below during servicing and inspection.Heed the cautions!Spots requiring particular attention when servicing, suchas the cabinet, parts, chassis, etc., have cautions indicatedon labels or seals. Be sure to heed these cautions and thecautions indicated in the handling instructions.Cauti

4、on concerning electric shock!(1) An AC voltage is impressed on this set, so touching in-ternal metal parts when the set is energized couldcause electric shock. Take care to avoid electric shock,by for example using an isolating transformer andgloves when servicing while the set is energized, un-plug

5、ging the power cord when replacing parts, etc.(2)There are high voltage parts inside. Handle with extracare when the set is energized.Caution concerning disassembly andassembly!Though great care is taken when manufacturing parts fromsheet metal, there may in some rare cases be burrs on theedges of p

6、arts which could cause injury if fingers aremoved across them. Use gloves to protect your hands.Only use designated parts!The sets parts have specific safety properties (fire resis-tance, voltage resistance, etc.). For replacement parts, besure to use parts which have the same properties. In par-tic

7、ular, for the important safety parts that are marked z onwiring diagrams and parts lists, be sure to use the desig-nated parts.Be sure to mount parts and arrangethe wires as they were originally!For safety reasons, some parts use tape, tubes or other in-sulating materials, and some parts are mounted

8、 away fromthe surface of printed circuit boards. Care is also taken withthe positions of the wires inside and clamps are used tokeep wires away from heating and high voltage parts, sobe sure to set everything back as it was originally.Inspect for safety after servicing!Check that all screws, parts a

9、nd wires removed or discon-nected for servicing have been put back in their original po-sitions, inspect that no parts around the area that has beenserviced have been negatively affected, conduct an insu-lation check on the external metal connectors and betweenthe blades of the power plug, and other

10、wise check thatsafety is ensured.(Insulation check procedure)Unplug the power cord from the power outlet, disconnectthe antenna, plugs, etc., and turn the power switch on. Us-ing a 500V insulation resistance tester, check that the in-sulation resistance between the terminals of the powerplug and the

11、 externally exposed metal parts (antenna ter-minal, headphones terminal, microphone terminal, inputterminal, etc.) is 1M or greater. If it is less, the set mustbe inspected and repaired.Concerning important safetypartsMany of the electric and structural parts used in the sethave special safety prope

12、rties. In most cases these prop-erties are difficult to distinguish by sight, and using re-placement parts with higher ratings (rated power andwithstand voltage) does not necessarily guarantee thatsafety performance will be preserved. Parts with safetyproperties are indicated as shown below on the w

13、iring dia-grams and parts lists is this service manual. Be sure to re-place them with parts with the designated part number.(1) Schematic diagrams . Indicated by the z mark.(2) Parts lists . Indicated by the z mark.Using parts other than the designatedparts could result in electric shock, fires orot

14、her dangerous situations.SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECKBefore returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassisresista

15、nce check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of thepower cord is less than 460 kohms, the unit is defective.CAUTIONCAUTIONRadioFans.CN 收音机爱 好者资料库3PMA-710AEDIMENSION34443460102.52026520.523max50.5165.5493444PMA-710AEWIRE ARRANGEMENTIf wire

16、bundles are untied or moved to perform adjustment or parts replacement etc.,be sure to rearrange them neatly as they were originally bundled or placed afterward.Otherwise, incorrect arrangement can be a cause of noise generation. Wire arrangement viewed from the topFront Panel sideBack Panel side5PM

17、A-710AEDISASSEMBLY Disassemble in order of the arrow of the figure of following flow. In the case of the re-assembling, assemble it in order of the reverse of the following flow. In the case of the re-assembling, observe attention of assembling it.About the photos used for descriptions in the “DISAS

18、SEMBLY” section. The direction from which the photographs used herein were photographed is indicated at Direction of photograph: * at the left of the respective photographs. Refer to the table below for a description of the direction in which the photos were taken. Photographs for which no direction

19、 is indicated were taken from above the product.TOP CABINETFRONT PANEL ASSYPOWER PCBREAR PANELRefer to DISASSEMBLY 1.FRONT PANEL ASSYRefer to EXPLODED VIEWRefer to EXPLODED VIEWand EXPLODED VIEWPOWER PCBFRONT PCB (Ref. No. of EXPLODED VIEW : 1-2) (Ref. No. of EXPLODED VIEW : 2-1)MAIN PCB ASSYFUNCTIO

20、N PCBRefer to EXPLODED VIEW (Ref. No. of EXPLODED VIEW : 2-3)POWER TRANSFORMERMAIN PCB ASSYVOLUME PCBRefer to EXPLODED VIEW (Ref. No. of EXPLODED VIEW : 1-1) (Ref. No. of EXPLODED VIEW : 2-4)POWER TRANSFORMERMCU PCB ASSYSW/HP PCB (Ref. No. of EXPLODED VIEW : 28) (Ref. No. of EXPLODED VIEW : 2-2) (Re

21、f. No. of EXPLODED VIEW : 2-5)The viewpoint of each photograph(Photografy direction)View from aboveFront side6PMA-710AE1. FRONT PANEL ASSY(1) Remove the screws.(2) Cut the wire clamp bands, then loose the style pins.(3) Disconnect the connector wires, then remove the screws.Proceeding : CABINET TOPF

22、RONT PANEL ASSYView from bottomStyle pin : LoosecutCN52CN53CN95CN92CN94CN50CN55CN51CN93CN94Please refer to EXPLODED VIEW for the disassembly method of each P.W.B included in FRONT PANEL ASSY.7PMA-710AE2. POWER PCB3. REAR PANEL4. MAIN PCB ASSY5. POWER TRANSFORMER Proceeding : TOP CABINETPOWER PCBPlea

23、se refer to EXPLODED VIEW for the disassembly method in POWER PCB.Proceeding : TOP CABINETREAR PANELPlease refer to EXPLODED VIEW for the disassembly method in REAR PANEL.Proceeding : TOP CABINETREAR PANELMAIN PCB ASSYPlease refer to EXPLODED VIEW for the disassembly method in MAIN PCB ASSY.Proceedi

24、ng : TOP CABINETPOWER TRANSFORMERPlease refer to EXPLODED VIEW for the disassembly method in POWER TRANSFORMAER.8PMA-710AEBLOCK AND LEVEL DIAGRAMEQTONE&LOUDNESSSOURCE DIRECTBALANCEBUFFERMAIN VOLUMEPOWER AMPSPEAKER ASPEAKER BPHONOCDTUNERLINE44dBHEADPHONE35.5dB(MM)VOLATAGEREGULATORPOWER AMPOUTPUT STAG

25、E16V16V16VPHONO EQTONEPOWER AMPFIRST STAGECONTROL&RELAYSTANDBY30dB20dB10dB0dB-10dB-20dB-30dB-40dB-50dB-60dB-70dBCD etc. 100mV(-20dB)MM 1.7mV(-55.4dB)50W/8ohm 20.0V(25.5dB)AC CORDPRE OUT0.7V/10k ohm(-3dB)INPUTRECODER-1RECODER-2PREOUTPBRECPBREC243124319PMA-710AEADJUSTMENTIdling CurrentRequired measure

26、ment equipment: DC Voltmeter1. Setup(1) Place the unit at an ordinary position avoiding direct air flow from an air-conditioner or fan. Do the adjustment at a tem-perature between 15 C (59 F) and 30 C (86 F).(2) Set control as follows. POWER switch OFF (j). VOLUME control fully counterclockwise ( c

27、min.) SPEAKER terminals open: do not connect the speakers, dummy load etc.2. Adjustment(1) Remove top cover. And then connect DC Voltmeter to the test points CN31 and CN32 of CUP12196B Main PCB.(2) Connect power cord to AC wall outlet, and turn POWER switch ON ( h ).(3) Right after power on, adjust

28、VR31 and VR32 so that the DC voltmeter reads 10 1mV.(4) Then after 2 minutes warm up adjust VR31 and VR32 so that the DC voltmeter reads 10 1mV.(5) And after 10 minutes warm up adjust VR31 and VR32 so that the DC voltmeter reads 10 0.5mV.VR31CN31CN32VR32VolumeDC VoltmeterPowerTrans10PMA-710AETROUBLE

29、 SHOOTING1. The power can not be turned on. (Power indication LED does not light.)2. The power turned on, but a sound does not output normally. (Both channels)2.1.2.2.2.3.Check the insertion of the Power Part.Check whether power is being supplied to the coil of the standby transformer (T901).Power n

30、ot supplied.Broken wire in standby trans-former (T901)Power supplied.Malfunction of D941-944, C941or C943.Set remains in standby mode with power indicator LED lit red.Check each connector.The connectors are insertedcompletely.Malfunction of RC71 or IC41.Power indicator LED remains flashing red and m

31、uting mode is not canceled (protection mode is set).Check the power amplifier outputs offset voltage.Offset voltage output is 1V orgreater.Damaged power amplifier cir-cuit. No offset voltage is output.Damaged temperature detec-tion circuit or protection circuit.Set operates, but then power indicator

32、 LED flashes red (protection mode is set).Check the power amplifier outputs offset voltage.Offset voltage output is 1V orgreater.Damaged power amplifier cir-cuit. No offset voltage is output.Check the bias current.11PMA-710AE2.4.3. The power turned on, but a sound does not output normally. (Single c

33、hannel)Power indicator LED is lit normally (green or orange).Check each connector.Is the fuse (F901) normal?Check the voltage of eachdepartment.Check the operation of theswitching relay, switching ICand speaker relay.Check the Signal line.Power indicator LED is lit normally (green or orange).Check e

34、ach connector.Check the voltage of eachdepartment.Check the operation of theswitching relay, switching ICand speaker relay.Check the Signal line.12PMA-710AESEMICONDUCTORSOnly major semiconductors are shown, general semiconductors etc. are omitted to list. The semiconductor which described a detailed

35、 drawing in a schematic diagram are omitted to list.1. ICsTMP86FH47AUG (IC41)TMP86FH47AUG Terminal FunctionPin No.Port NameI/OFunction1VSSVSS2XINX IN3XOUTX OUT4TESTTEST5VDDVDD6P21XTINOMUTE/STANDBY LED7P22XTOUTO8RESETIRESET9P20INT5STOPISTOP ACT.10P00INT0IPROTECTOR11P01PDO4/PWM4/PPG4TC4OP. DIRECT RELA

36、Y12P02RXDIRXD13P03TXDOTXD14P04SOODATA15P05SIOSTROBE16P06SCKOCLK17P07INT4OS. DIRECT RELAY18P17IP. DIRECT SW19P16IS. DIRECT SW20P15INT3AC RELAY 121P14PPGOVOLUME UP22P13DVOOVOLUME DOWN23P12INT2TC1IREMOTE IN24P11INT1IPOWER OFF25P10PDO3/PWM3TC3AC RELAY 226P30AIN0AIMODEL13PMA-710AETC9164AN (IC22)TC9163AN

37、(IC21)27P31AIN1AISP A/B28P32AIN2AIREC. SEL29P33AIN3AIFUNC. SEL30P34AIN4STOP2OH/P MUTE31P35AIN5STOP3OSP A32P36AIN6STOP4OSP B33P37AIN7STOP534VAREFVref35AVDDAVDD36AVSSAVSS37P40OPHONO38P41OCD39P42OTUNER40P43OAUX-141P44OAUX-242P45OAUX-343P46OTAPE-144P47OTAPE-2Pin No.Port NameI/OFunctionTC9164AN1234567891

38、0111213141516171819202122232425262728VSSL-S1L-COM1L-COM2L-COM3STGNDVDDR-COM1R-COM2R-COM3DATACKL-S4L-S2L-S3L-S5L-S6L-S7L-S8R-S1R-S2R-S3R-S4R-S5R-S6R-S7R-S8L-COM1L-COM2L-COM3STVDDVSSR-S1R-S2R-S3R-S4R-COM1R-S5R-S6R-COM2R-S8R-S7DATACKL-S1L-S2L-S3L-S4789131142827241918171615234L-S5L-S6L-S7GND202122232526

39、56101112L-S8R-COM3Level ShifterLatch CircuitShift RegisterLevel ShifterLatch CircuitTC9163AN12345678910111213141516171819202122232425262728VSSL-S1L-COM1L-COM2L-COM3STGNDVDDR-S4R-COM2R-COM3DATACKL-S4L-S2L-S3L-S5L-S6L-S7L-S8R-S1R-S2R-S3R-COM1R-S5R-S6R-S7R-S8L-COM1L-COM2L-COM3STVDDVSSR-S1R-S2R-S3R-COM1

40、R-S4R-S5R-S6R-COM2R-S8R-S7DATACKL-S1L-S2L-S3L-S4789131142827241918171615234L-S5L-S6L-S7GND20212223252656101112L-S8R-COM3Level ShifterLatch CircuitShift RegisterLevel ShifterLatch Circuit14PMA-710AE-MEMO-15PMA-710AEPRINTED WIRING BOARDSMAIN PCB ASSY (1/2)COMPONENT SIDE16PMA-710AEMAIN PCB ASSY (2/2)FO

41、IL SIDE17PMA-710AEFRONT PCB ASSY (1/2)COMPONENT SIDE18PMA-710AEFRONT PCB ASSY (2/2)FOIL SIDE19PMA-710AENOTE FOR PARTS LIST Parts for which nsp is indicated on this table cannot be supplied. When ordering of part, clearly indicate 1 and I (i) to avoid mis-supplying.Ordering part without stating its p

42、art number can not be supplied. Not including General-purpose Carbon Chip Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)Parts marked with this symbol z have critical characteristics.Use ONLY replacement parts recommended by the manufacturer.Not including Gene

43、ral-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)Part indicated with the mark is not illustrated in the exploded view.WARNING:1.2.3.4.5.6. ResistorsRD:CarbonRC:CompositionRS :Metal oxide filmRW:windingRN:Metal filmRK :Metal mixtureP:Pulse

44、-resistant typeNL :Low noise typeNB :Non-burning typeFR :Fuse-resistorF:Lead wire forming2B :1/8 W2E :1/4 W2H :1/2 W3A :1 W3D :2 W3F :3 W3H :5 WF:1%G:2%J:5%K:10%M :20%Ex.:RNType14KShapeand per-formance2EPower182Resist-anceGAllowableerrorFROthers* Resistance1800ohm=1.8kohm1 82Indicates number of zero

45、s after effective number.2-digit effective number.1.2ohm1 R22-digit effective number, decimal point indicated by R.1-digit effective number.: Units: ohm CapacitorsCE :Aluminum foilelectrolyticCA :Aluminium solidelectrolyticCS :Tantalum electrolyticCQ:FilmCK :CeramicCC:CeramicCP :OilCM:MicaCF :Metall

46、izedCH:MetallizedHS :High stability typeBP :Non-polar typeHR:Ripple-resistant typeDL :For change and dischargeHF :For assuring high requencyU:UL partC:CSA partW :UL-CSA partF:Lead wire forming0J :6.3 V1A :10 V1C :16 V1E :25 V1V :35 V1H :50 V2A :100 V2B :125 V2C :160 V2D :200 V2E :250 V2H :500 V2J :6

47、30 VF:1%G:2%J:5%K:10%M :20%Z:80%:- 20%P:+100%C:0.25pFD:0.5pF=:OthersEx.:CEType04WShapeand per-formance1HDielectricstrength3R2CapacityMAllowableerrorBPOthers Units:F.2200F2 22Indicates number of zeros after effective number.2-digit effective number. Units:F.2.2F2 R22-digit effective number, decimal p

48、oint indicated by R1-digit effective number.*Capacity (electrolyte only)When the dielectric strength is indicated in AC,AC is included after the dieelectric strength value.*Capacity (except electrolyte) Units:pF2200pF=0.0022F2 22Indicates number of zeros after efective number.(More than 2)2-digit ef

49、fective number. Units:pF220pF2 212-digit effective number.Indicates number of zeros after effective numver.(0 or 1)20PMA-710AEPARTS LIST OF PCB UNIT Parts for which nsp is indicated on this table cannot be supplied. The parts listed below are for maintenance only, might differ from the parts used in

50、 the unit in appearances or dimensions.Note: The symbols in the column Remarks indicate the following destinations.E2 : Europe modelE1C : China modelMAIN PCB UNIT ASSYRef No.Part No.Part NameRemarkQty NewSEMICONDUCTORS GROUPIC1000D9430198207IC NJM2068DDHVINJM2068DD1IC2100D2622487009IC TC9163ANCVITC9