Denon-AVR1911-avr-sm维修电路原理图.pdf

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1、D&M Holdings Inc.SERVICE MANUALeeCopyright 2010 D&M Holdings Inc. All rights reserved.WARNING: Violators will be prosecuted to the maximum extent possible.MODELJPE3E2EKEAE1E1KE1CAVR-1911 s?AVR-791?AV SURROUND RECEIVERVer. 4 Some illustrations using in this service manual are slightly different from

2、the actual set. Please use this service manual with referring to the operating instructions without fail. For purposes of improvement, specifi cations and design are subject to change without notice.S0088-1V04DM/DG1009sPlease refer to the MODIFICATION NOTICE.RadioFans.CN 收音机爱 好者资料库2SAFETY PRECAUTION

3、SThe 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 chassis resistance check. if the leakage current exceeds

4、 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective.Be sure to test for leakage current with the AC plug in both polarities, in addition, in each power ON, OFF and STANDBY mode, if applicable.CAUTION Please heed the points

5、listed below during servicing and inspection. Heed the cautions!Spots requiring particular attention when servicing, such as the cabinet, parts, chassis,etc., have cautions indicated on labels. be sure to heed these causions and the cautions indicated in the handling instructions. Caution concerning

6、 electric shock!(1) An AC voltage is impressed on this set, so touching internal metal parts when the set is energized could cause electric shock. Take care to avoid electric shock, by for example using an isolating transformer and gloves when servicing while the set is energized, unplugging the pow

7、er cord when replacing parts, etc.(2) Tere are high voltage parts inside. Handle with extra care when the set is energized. Caution concerning disassembly and assembly!Through great care is taken when manufacturing parts from sheet metal, there may in some rare cases be burrs on the edges of parts w

8、hich could cause injury if fi ngers are moved across them. Use gloves to protect your hands. Only use designated parts!The sets parts have specific safety properties (fire resistance, voltage resistance, etc.). For replacement parts, be sure to use parts which have the same poroperties. In particula

9、r, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally!For safety seasons, some parts use tape, tubes or other insulating materials, and some parts are mounted a

10、way from the surface of printed circuit boards. Care is also taken with the positions of the wores omsode amd clamps are used to keep wires away from heating and high voltage parts, so be sure to set everything back as it was originally. Inspect for safety after servicing!Check that all screws, part

11、s and wires removed or disconnected for servicing have been put back in their original positions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an inslation check on the external metal connectors and between the blades of the power plug, and othe

12、rwise check that safety is ensured.(Insulation check procedure)Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and turn the power switch on. Using a 500V insulation resistance tester, check that the inplug and the externally exposed metal parts (antenna terminal, he

13、adphones terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired.Many of the electric and structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and using replacement parts

14、 with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be poreserved. Parts with safety properties are indicated as shown below on the wiring diagrams and parts lists is this service manual. Be sure to replace them with parts with the des

15、ignated part number.(1) Schematic diagrams .Indicated by the z mark.(2) Parts lists .Indicated by the z mark.Using parts other than the designated parts could result in electric shock, fi res or other dangerous situations.CAUTION Concerning important safety partsRadioFans.CN 收音机爱 好者资料库3NOTE FOR SCHE

16、MATIC DIAGRAMWARNING:Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.CAUTION:Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the le

17、akage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective.WARNING:DO NOT return the unit to the customer until the problem is located and corrected.NOTICE:ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,0

18、00 OHMALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.Parts for which nsp is indicated on this table cannot be supplied.When ordering of part, clearly indicate

19、1 and I (i) to avoid mis-supplying.Ordering part without stating its part 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 ON

20、LY replacement parts recommended by the manufacturer.Not including General-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:Composit

21、ionRS :Metal oxide filmRW:windingRN:Metal filmRK :Metal mixtureP:Pulse-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-anceGAllowab

22、leerrorFROthers* Resistance1800ohm=1.8kohm1 82Indicates number of zeros after effective number.2-digit effective number.1.2ohm1 R22-digit effective number, decimal point indicated by R.1-digit effective number.: Units: ohmCapacitorsCE :Aluminum foilelectrolyticCA :Aluminium solidelectrolyticCS :Tant

23、alum electrolyticCQ:FilmCK :CeramicCC:CeramicCP :OilCM:MicaCF :MetallizedCH: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

24、 V1H :50 V2A :100 V2B :125 V2C :160 V2D :200 V2E :250 V2H :500 V2J :630 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

25、effective number. Units:F.2.2F2 R22-digit effective number, decimal point 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 22In

26、dicates number of zeros after efective number. (More than 2)2-digit effective number. Units:pF220pF2 212-digit effective number.Indicates number of zeros after effective numver. (0 or 1)NOTE FOR PARTS LIST4TECHNICAL SPECIFICATIONS s n Audio Section Power amplifi erRated output :Front : 90 W + 90 W (

27、8 , 20 Hz 20 kHz with 0.08 % T.H.D.) 125 W + 125 W (6 , 1 kHz with 0.7 % T.H.D.) 140W+140W(6 , JEITA)Center : 90 W (8 , 20 Hz 20 kHz with 0.08 % T.H.D.) 125 W (6 , 1 kHz with 0.7 % T.H.D.) 140W(6 , JEITA)Surround : 90 W + 90 W (8 , 20 Hz 20 kHz with 0.08 % T.H.D.) 125 W + 125 W (6 , 1 kHz with 0.7 %

28、 T.H.D.) 140W+140W(6 , JEITA)Surround back: 90 W + 90 W (8 , 20 Hz 20 kHz with 0.08 % T.H.D.) 125 W + 125 W (6 , 1 kHz with 0.7 % T.H.D.) 140W+140W(6 , JEITA)Output connectors : 6 16 AnalogInput sensitivity/Input impedance : 200 mV/47 kFrequency response: 10 Hz 100 kHz +1, 3 dB (DIRECT mode)S/N : 10

29、0 dB (IHFA weighted, DIRECT mode) n Video Section Standard video connectorsInput/output level and impedance : 1 Vp-p, 75 Frequency response : 5 Hz 10 MHz +1, 3 dB n HD Radio section (for 1911E3)FM(Note: V at 75 , 0 dBf = 1 x 1015 W)Receiving Range :FM 87.5 MHz 107.9 MHz AM530 kHz 1710 kHzUsable Sens

30、itivity :FM1.5 V (14.8 dBf) AM20 VS/N (IHF-A) :FMMONO 78 dB AMSTEREO 68 dBHD 85 dB 85 dBTotal harmonic Distortion (at 1 kHz) :FMMONO 0.1 % AMSTEREO 0.2 %HD 0.02 % 0.02 % n Tuner section (for 1911E2,1911E1C,791E3,791EA)FM(Note: V at 75 , 0 dBf = 1 x 1015 W)Receiving Range (for 791E3) :FM 87.5 MHz 107

31、.9 MHz AM520 kHz 1710 kHzReceiving Range (for 1911E2,1911E1C,791EA) :FM 87.5 MHz 108.0 MHz AM522 kHz 1611 kHzUsable Sensitivity :FM1.2 V (12.8 dBf) AM18 V50 dB Quieting Sensitivity (for 791E3) :FMMONO 2.8 V (20.2 dBf)50 dB Quieting Sensitivity (for 1911E2,1911E1C,791EA) :FMMONO 2.0 V (17.3 dBf)STERE

32、O 42 V (34.5 dBf)S/N (IHF-A) (for 791E3) :FMMONO 70 dBSTEREO 67 dBS/N (IHF-A) (for 1911E2,1911E1C,791EA) :FMMONO 72 dBSTEREO 67 dBTotal harmonic Distortion (at 1 kHz) (for 791E3) :FMMONO 0.7 %STEREO 1.0 %Total harmonic Distortion (at 1 kHz) (for 1911E2,1911E1C,791EA) :FMMONO 0.3 %STEREO 0.7 % n Gene

33、ralPower supply : AC 120 V, 60 Hz (for 1911E3,791E3) AC 230 V, 50 Hz (for 1911E2,791EA) AC 220 V, 50 Hz (for 1911E1C) Power consumption :460 W0.1 W (Standby)3 W (CEC standby)Maximum external dimensions :434 (W) x 171 (H) x 381 (D) mmWeight : 10.2 kg n Remote Control Unit (RC-1146)Batteries : R6/AA T

34、ype (two batteries)Maximum external dimensions : 53 (W) x 224 (H) x 28 (D) mmWeight : 160 g (including batteries)26644.21615517120.721.454.7214.5338.938134.510234443418.5DIMENSIONThe illustration is AVR-791 E3 model.5CAUTION IN SERVICINGInitializing AV SURROUND RECEIVERAV SURROUND RECEIVER initializ

35、ation should be performed when the com, peripheral parts of com, and Digital P.W.B. are replaced.1. Turn off the power using ON/STANDBY button.2. Press ON/STANDBY button while simultaneously pressing SURROUND MODE 0 and SURROUND MODE 1 buttons.3. Check that the entire display is fl ashing with an in

36、terval of about 1 second, and release your fi ngers from the 2 buttons and the microprocessor will be initialized.Service Jigs When you repair the printing board, you can use the following JIG (Extension cable kit). Please order to Denon Offi cial Service Distributor in your region if necessary.8U-1

37、10084S : EXTENSION UNIT KIT : 1 Set s(Refer to 20 page)When you update the fi rmware, you can use the followingJIG (RS232C to internal connector conversion adapter with 4P FFC cable kit ). sPlease order to Denon Offi cial Service Distributor in your region if necessary.8U-210100S : WRITING KIT : 1 S

38、et(Refer to 22 page)Note: If step 3 does not work, start over from step 1. All user settings will be lost and this factory setting will be recovered when this initialization mode. So make sure to memorize your setting for restoring after the initialization.SURROUND MODE 0SURROUND MODE 1ON/STANDBY6DI

39、SASSEMBLY Disassemble in order of the arrow of the fi gure of following fl ow. In the case of the re-assembling, assemble it in order of the reverse of the following fl ow. In the case of the re-assembling, observe attention of assembling it. If wire bundles are untied or moved to perform adjustment

40、 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.About the photos used for descriptions in the DISASSEMBLY section. The direction from which the photographs used herein

41、 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 is indicated were taken from above the product. The photograph is AV

42、R-791 E3 model.The viewpoint of each photograph(Photografy direction)View from aboveFront sideDirection of photograph: BDirection of photograph: DDirection of photograph: CDirection of photograph: AFRONT PANEL ASSYRefer to DISASSEMBLY 1. FRONT PANEL ASSYand EXPLODED VIEWPCB FUNCTION(Ref. No. of EXPL

43、ODED VIEW : 11)PCB H/P(Ref. No. of EXPLODED VIEW : 14)PCB USB(Ref. No. of EXPLODED VIEW : 21)PCB FRONT(Ref. No. of EXPLODED VIEW : 22)PCB FUNCTION_CNT(Ref. No. of EXPLODED VIEW : 23)TRANS MAINRefer to DISASSEMBLY 6. TRANS MAINand EXPLODED VIEWTRANS MAIN(Ref. No. of EXPLODED VIEW : 46)RADIATOR ASSYRe

44、fer to DISASSEMBLY 2. RADIATOR ASSYand EXPLODED VIEWPCB GUIDE_L(Ref. No. of EXPLODED VIEW : 26)PCB TOP_GUIDE(Ref. No. of EXPLODED VIEW : 29)PCB GUIDE_R(Ref. No. of EXPLODED VIEW : 31)PCB 7CH-AMP ASSY(Ref. No. of EXPLODED VIEW : 33)PCB REG CNT/PCB REGRefer to DISASSEMBLY 3. PCB REG CNT/PCB REGand EXP

45、LODED VIEWPCB REG(Ref. No. of EXPLODED VIEW : 52)PCB REG_CNT(Ref. No. of EXPLODED VIEW : 53)CABINET TOPHDMI UNIT ASSYRefer to DISASSEMBLY 4. HDMI UNIT ASSYand EXPLODED VIEWPCB AUDIO_VIDEO ASSY(Ref. No. of EXPLODED VIEW : 50)PCB SIDE_CNT(Ref. No. of EXPLODED VIEW : 51)PCB HDMI ASSY(Ref. No. of EXPLOD

46、ED VIEW : 56)PCB FRONT_CNT(Ref. No. of EXPLODED VIEW : 57)PCB SPK/PCB SMPSRefer to DISASSEMBLY 5. PCB SPK/PCB SMPSand EXPLODED VIEWPCB SPK(Ref. No. of EXPLODED VIEW : 54)PCB SMPS(Ref. No. of EXPLODED VIEW : 55)71. FRONT PANEL ASSY(1) Remove the screws.(2) Cut the wire clamp band, then disconnect the

47、 connector wires and FFC cable. Remove the screws.CABINET TOPFRONT PANEL ASSYProceeding : View from bottomSTYLE?PIN : LooseSTYLE?PIN : LooseN4401CP100FFC cablecutPlease refer to EXPLODED VIEW for the disassembly method of each PCB included in FRONT PANEL ASSY.82. RADIATOR ASSY(1) Remove the screws.(

48、2) Remove the screws.CABINET TOPRADIATOR ASSYProceeding : View from bottomDirection of photograph: DDirection of photograph: CSTYLE?PIN : Loose9(3) Cut the wire clamp bands, then disconnect the connector wires and FFC cable.(4) Disconnect the connector wires.STYLE?PIN : LooseN2706CP100FFC cablecutRA

49、DIATOR ASSYCP401CP402CP403CP405 STYLE?PIN : LoosePCB 7CH AMPPlease refer to EXPLODED VIEW for the disassembly method of each P.W.B included in RADIATOR ASSY.103. PCB REG CNT/PCB REG(1) Remove the screws.(2) Disconnect the connector wires and connector board.CABINET TOPRADIATOR ASSYPCB REG CNT/PCB RE

50、GProceeding : PCB REGDirection of photograph: CCP13BCP104PCB REG CNTBoard to boardCP102CP13A PCB REG114. HDMI UNIT ASSY(1) Disconnect the connector wire and FFC cable.(2) Remove the screws, then remove the BACK PANEL.(3) Cut the wire clamp band, then disconnect the and connector wires. Remove the sc