Denon-AVR1912-avr-sm维修电路原理图.pdf

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1、D&M Holdings Inc.SERVICE MANUALeeCopyright 2012 D&M Holdings Inc. All rights reserved.WARNING: Violators will be prosecuted to the maximum extent possible.MODELJPE3E2EKEAE1E1KE1CAVR-1912PPPPAVR-2112CIPINTEGRATED NETWORK AV RECEIVERssssVer. 6S0436-0V06DM/DG1202 Some illustrations using in this servic

2、e manual are slightly different from the actual set. Please use this service manual with referring to the operating instructions without fail. For purposes of improvement, specifications and design are subject to change without notice.Please refer to the MODIFICATION NOTICE.RadioFans.CN 收音机爱 好者资料库2C

3、ONTENTSSAFETY PRECAUTIONS .3NOTE FOR SCHEMATIC DIAGRAM .4TECHNICAL SPECIFICATIONS .5DIMENSION .5CAUTIONS IN SERVICING .7Initializing INTEGRATED NETWORK AV RECEIVER .7Service Jig .7DISASSEMBLY .81. FRONT PANEL ASSY .102. PCB RS232C (AVR-2112CI only) .113. PCB HDMI .124. POWER TRANS MAIN .135. PCB AUD

4、IO_VIDEO ASSY .136. PCB SMPS/PCB SPK .147. PCB REG/PCB REG_CNT .158. RADIATOR ASSY .16SPECIAL MODE .18Special mode setting button (for 1912E3 model) .18Special mode setting button (for AVR-1912E2/EA/E1C,2112CIE3 model) .191. com/DSP Version display mode .202. Errors checking mode (Displaying the pro

5、tection history) .233. Remote ID Setup mode .254. DIAGNOSTIC MODE (Video/Audio (signal) path confirmation mode) .27BLOCK DIAGRAM .29JIG FOR SERVICING .43WHEN THE MICROPROCESSOR IS REPLACED WITH A NEW ONE .45PROCEDURE FOR UPGRADING THE VERSION OF THE FIRMWARE .451. How to update by DFW .452. How to u

6、pdate by DPMS .49ADJUSTMENT .56SURROUND MODES AND PARAMETERS .57TROUBLE SHOOTING .611. POWER .612. Analog video .623. HDMI/DVI .684. AUDIO .775. Network/USB .806. SMPS .83CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK .86LEVEL DIAGRAM .87PRINTED WIRING BOARDS .937CH AMP .93SMPS .94SPK .95REG .97FRONT_CNT .

7、97SIDE_CNT .98REG_CNT .98RS232C (AVR-2112CI model) .99SIRIUS (AVR-2112CI model) .99FRONT .100FUNCTION (1912E3 model) .101USB (1912E3 model) .101FUNCTION (Except the 1912E3 model) .101USB (Except the 1912E3 model) .101FUNCTION CNT (1912E3 model) .102FUNCTION CNT (Except the 1912E3 model) .102V.AUX .1

8、02H/P .102AUDIO_VIDEO .103HDMI .104SCHEMATIC DIAGRAMS .1067CH-AMP UNIT (1/2) .1067CH-AMP UNIT (2/2) .107SPK UNIT .108SMPS UNIT .109REG UNIT .110SIDE_CNT UNIT .111FRONT_CNT UNIT .112SIRIUS UNIT (AVR-2112CI ONLY) .113RS232C UNIT (AVR-2112CI ONLY) .113AUDIO_VIDEO UNIT (1/3) .114AUDIO_VIDEO UNIT (2/3) .

9、115AUDIO_VIDEO UNIT (3/3) .116HDMI UNIT (1/13) .117HDMI UNIT (2/13) .118HDMI UNIT (3/13) .119HDMI UNIT (4/13) .120HDMI UNIT (5/13) .121HDMI UNIT (6/13) .122HDMI UNIT (7/13) .123HDMI UNIT (8/13) .124HDMI UNIT (9/13) .125HDMI UNIT (10/13) .126HDMI UNIT (11/13) .127HDMI UNIT (12/13) .128HDMI UNIT (13/1

10、3) .129FRONT UNIT .130V.AUX UNIT .130FUNCTION_CNT UNIT .130FUNCTION UNIT .130H/P UNIT .130USB UNIT.131WIRING DIAGRAM .132EXPLODED VIEW .133PARTS LIST OF EXPLODED VIEW .135PACKING VIEW .138PARTS LIST OF PACKING & ACCESSORIES .138SEMICONDUCTORS .1401. ICs .1402. FL DISPLAY.171PARTS LIST OF P.C.B. UNIT

11、 .173PCB 7CH_AMP ASSY .173PCB SPK ASSY .177PCB REG_CNT ASSY .180PCB FRONT ASSY.182PCB AUDIO_VIDEO ASSY .185PCB HDMI ASSY .188RadioFans.CN 收音机爱 好者资料库3SAFETY PRECAUTIONSThe following items should be checked for continued protection of the customer and the service technician.LEAKAGE CURRENT CHECKBefore

12、 returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set is defective. Be sur

13、e to test for leakage current with the AC plug in both polarities, in addition, when the sets power is in each state (on, off and standby mode), if applicable.CAUTION Please heed the following cautions and instructions during servicing and inspection. Heed the cautions!Cautions which are delicate in

14、 particular for servicing are labeled on the cabinets, the parts and the chassis, etc. Be sure to heed these cautions and the cautions described in the handling instructions. Cautions concerning electric shock!(1) An AC voltage is impressed on this set, so if you touch internal metal parts when the

15、set is energized, you may get an electric shock. Avoid getting an electric shock, by using an isolating transformer and wearing gloves when servicing while the set is energized, or by unplugging the power cord when replacing parts, for example.(2) There are high voltage parts inside. Handle with ext

16、ra care when the set is energized. Caution concerning disassembly and assembly!Through great care is taken when parts were manufactured from sheet metal, there may be burrs on the edges of parts. The burrs could cause injury if fingers are moved across them in some rare cases. Wear gloves to protect

17、 your hands. Use only designated parts!The sets parts have specific safety properties (fire resistance, voltage resistance, etc.). Be sure to use parts which have the same properties for replacement. The burrs have the same properties. In particular, for the important safety parts that are indicated

18、 by the z mark on schematic diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally placed!For safety seasons, some parts use tapes, tubes or other insulating materials, and some parts are mounted away from the surface of pr

19、inted circuit boards. Care is also taken with the positions of the wires by arranging them and using clamps to keep them away from heating and high voltage parts, so be sure to set everything back as it was originally placed. Make a safety check after servicing!Check that all screws, parts and wires

20、 removed or disconnected when servicing have been put back in their original positions, check that no serviced parts have deteriorate the area around. Then make an insulation check on the external metal connectors and between the blades of the power plug, and otherwise check that safety is ensured.(

21、Insulation check procedure)Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and on the power. Using a 500V insulation resistance tester, check that the insulation resistance value between the inplug and the externally exposed metal parts (antenna terminal, headphones

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

23、s with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be preserved. Parts with safety properties are indicated as shown below on the wiring diagrams and the parts list in this service manual. Be sure to replace them with the parts which

24、 have the designated part number.(1) Schematic diagrams .Indicated by the z mark.(2) Parts lists .Indicated by the z mark.The use of parts other than the designated parts could cause electric shocks, fires or other dangerous situations.CAUTION Concerning important safety parts4NOTE FOR SCHEMATIC DIA

25、GRAMWARNING:Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.CAUTION:Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage curr

26、ent exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set is defective.WARNING:DO NOT return the set to the customer unless the problem is identified and remedied.NOTICE:ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHMALL

27、 CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES 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 indicated by nsp on this table cannot be supplied.When o

28、rdering a part, make a clear distinction between 1 and I (i) to avoid mis-supplying.A part ordered without specifying its part number can not be supplied. General-purpose Carbon Chip Resistors are not included are not included in the P.W.Board parts list. (Refer to the Schematic Diagram for those pa

29、rts.)Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)Part indicated by mark is not illustrated in the exploded vi

30、ew.WARNING:1.2.3.4.5.6.ResistorsRD:CarbonRC:CompositionRS :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.:RNType1

31、4KShapeand per-formance2EPower182Resist-anceGAllowableerrorFROthers* 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: ohmNOTE FOR PARTS LIST5TECHNI

32、CAL SPECIFICATIONSs n Audio SectionPoweramplifierRated output :Front : 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.)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.)Surround :90 W + 90 W (8 , 20 Hz 20 kHz with 0.08 %

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

34、dB (IHFA weighted, DIRECT mode) n Video sectionStandard video connectorsInput/output level and impedance : 1 Vp-p, 75 Frequency response : 5 Hz 10 MHz 0, 3 dB n Tuner sectionFM(Note: V at 75 , 0 dBf = 1 x 1015 W)Receiving Range (for E3 model) : FM 87.5 MHz 107.9 MHz AM520 kHz 1710 kHzReceiving Range

35、 (for E2, EA, E1C model) : FM 87.5 MHz 108.0 MHz AM522 kHz 1611 kHzUsable Sensitivity :FM1.2 V (12.8 dBf) AM18 V50 dB Quieting Sensitivity (for E3 model) :FMMONO 2.8 V (20.2 dBf)50 dB Quieting Sensitivity (for E2, EA, E1C model) :FMMONO 2.0 V (17.3 dBf)STEREO 34.5V(42dBf) fS/N (IHF-A) (for E3 model)

36、 :FMMONO 70 dBSTEREO 67 dBS/N (IHF-A) (for E2, EA, E1C model) :FMMONO 72 dB (DIRECT mode)STEREO 67 dB (DIRECT mode)Total harmonic Distortion (at 1 kHz) (for E3 model) :FMMONO 0.7 %STEREO 1.0 %Total harmonic Distortion (at 1 kHz) (for E2, EA, E1C model) :FMMONO 0.3 %STEREO 0.7 % n GeneralPower supply

37、 (for E3 model) : AC 120 V, 60 HzPower supply (for E2, EA model) : AC 230 V, 50/60 HzPower supply (for E1C model) : AC 220 V, 50 HzPower consumption :460 W0.1 W (Standby)3 W (CEC standby)Maximum external dimensions (for 1912E3 model) :435 (W) x 162 (H) x 382 (D) mmWeight : 10.2 kgMaximum external di

38、mensions (for 1912E2,EA,E1C,2112CIE3 model) :435 (W) x 167 (H) x 382 (D) mmWeight : 10.3 kg n Remote Control Unit (RC-1156)Batteries : R6/AA Type (two batteries)Maximum external dimensions : 53 (W) x 224 (H) x 28 (D) mmWeight : 160 g (including batteries)53.8213.9162.0146.016.0344.0245.022.0382.021.

39、5338.530.586.030.543.5435.0DIMENSIONAVR-1912E3 model653.8213.9167.0151.016.0344.022.0382.021.5338.535.586.030.543.5435.0245.0AVR-1912E2/EA/E1C,2112CIE3 model s7CAUTIONS IN SERVICINGInitializing INTEGRATED NETWORK AV RECEIVERINTEGRATED NETWORK AV RECEIVER initialization should be performed when the c

40、om, peripheral parts of com, and Digital P.W.B. were replaced.1. Turn off the power pressing ON/STANDBY button.2. Press ON/STANDBY button while simultaneously while pressing PRESET CHANNEL 2 and PRESET CHANNEL 3 buttons.3. Check that the entire display is flashing at intervals of about 1 second, and

41、 then release the 2 buttons. The microprocessor will be initialized.AVR-1912E3 modelAVR-1912E2/EA/E1C,2112CIE3 model sService Jig When you repair the printing board, you can use the following JIG (Extension cable kit).Please order it from Denon Official Service Distributor in your region if necessar

42、y.8U-110084S : EXTENSION UNIT KIT : 1 Set(Refer to 43 page.)When you update the firmware by DFW, you can use the following JIG (RS232C to internal connector conversion adapter with 4P FFC cable kit ).Please order it from Denon Official Service Distributor in your region if necessary.8U-210100S : WRI

43、TING KIT : 1 Set(Refer to 45 page.)Note: If step 3 fails, start over from step 1. All user settings will be lost and the factory setting will be recovered after the set is initialized. So make sure to note down your setting beforehand for restoring after the initialization.ON/STANDBYPRESET CHANNEL 2

44、PRESET CHANNEL 3ON/STANDBYPRESET CHANNEL 2PRESET CHANNEL 38DISASSEMBLY Disassemble in order of the arrow in the following figure. 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. If wire bu

45、ndles are untied or moved to perform adjustment or replace parts 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.sFRONT PANEL ASSYRefer to DISASSEMBLY 1. FRONT PANEL ASSYand EXPLODED VIEWP

46、CB H/P(Ref. No. of EXPLODED VIEW : P1)PCB FUNCTION(Ref. No. of EXPLODED VIEW : P2)PCB FUNCTION_CNT(Ref. No. of EXPLODED VIEW : P3)PCB FRONT(Ref. No. of EXPLODED VIEW : P4)PCB V.AUX(Ref. No. of EXPLODED VIEW : P5)PCB USB(Ref. No. of EXPLODED VIEW : P6)RADIATOR ASSYRefer to DISASSEMBLY 8. RADIATOR ASS

47、Yand EXPLODED VIEWPCB GUIDE_R(Ref. No. of EXPLODED VIEW : P7)PCB 7CH-AMP ASSY(Ref. No. of EXPLODED VIEW : P8)PCB GUIDE_TOP(Ref. No. of EXPLODED VIEW : P9)PCB GUIDE_L(Ref. No. of EXPLODED VIEW : P10)POWER TRANS MAINRefer to DISASSEMBLY 4. POWER TRANS MAINand EXPLODED VIEWPOWER TRANS MAIN(Ref. No. of

48、EXPLODED VIEW : 31)TOP COVERPCB HDMI Refer to DISASSEMBLY 3. PCB HDMIand EXPLODED VIEWPCB HDMI ASSY(Ref. No. of EXPLODED VIEW : P16)PCB RS232C (AVR-2112CI only) sRefer to DISASSEMBLY 2. PCB RS232Cand EXPLODED VIEWPCB RS232C(Ref. No. of EXPLODED VIEW : P15)PCB SIRIUS(Ref. No. of EXPLODED VIEW : P17)P

49、CB SMPS/PCB SPKRefer to DISASSEMBLY 6. PCB SMPS/PCB SPKand EXPLODED VIEWPCB SMPS(Ref. No. of EXPLODED VIEW : P18)PCB SPK(Ref. No. of EXPLODED VIEW : P19)PCB REG/PCB REG_CNTRefer to DISASSEMBLY 7. PCB REG/PCB REG_CNTand EXPLODED VIEWPCB REG(Ref. No. of EXPLODED VIEW : P11)PCB REG_CNT(Ref. No. of EXPL

50、ODED VIEW : P12)PCB AUDIO_VIDEO ASSY fRefer to DISASSEMBLY 5. PCB AUDIO_VIDEO ASSYand EXPLODED VIEWPCB AUDIO_VIDEO ASSY(Ref. No. of EXPLODED VIEW : P13)PCB SIDE_CNT(Ref. No. of EXPLODED VIEW : P14)PCB FRONT_CNT(Ref. No. of EXPLODED VIEW : P20)9About the photos used for descriptions of the DISASSEMBL