Denon-AVR890-avr-sm2维修电路原理图.pdf
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1、Denon Brand Company, D&M Holdings lnc.eX0415 V.02 DE/CDM 0907SERVICE MANUALAV SURROUND RECEIVERAV SURROUND AMPLIFIERMODELJPE3E2EKEAE1CE1KEUTAVR-2310CI? ?AVR-2310? ?AVR-890?MODELJPE3E2EKEAE1CE1KEUTAVC-2310? ?Ver. 2For purposes of improvement, specifications and design are subject to change without no
2、tice.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.Please refer to theMODIFICATION NOTICE.RadioFans.CN 收音机爱 好者资料库2AVR-2310CI/2310/890, AVC-2310Please heed the points
3、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.Caution conce
4、rning 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-plugging the
5、 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 parts whi
6、ch 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-ticular, fo
7、r 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 away fr
8、omthe 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 and wires
9、 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 otherwise che
10、ck 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 externa
11、lly 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 properties. I
12、n 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 wiring di
13、a-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 orother dang
14、erous 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 chassisresistance chec
15、k. 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3AVR-2310CI/2310/890, AVC-2310DIMENSION AVR-2310CI/2310, AVC-2310 model 4AVR-2310CI/2310/890, AVC-2310
16、 AVR-890 model 5AVR-2310CI/2310/890, AVC-2310WIRE ARRANGEMENTIf wire bundles are untied or moved to perform adjustment or parts replacement etc., be sure to rearrange them neatly asthey were originally bundled or placed afterward.Otherwise, incorrect arrangement can be a cause of noisegeneration.Wir
17、e arrangement viewed from the topBack Panel sideFront Panel side6AVR-2310CI/2310/890, AVC-2310DISASSEMBLY 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,
18、observe attention of assembling it.CABINET TOP PANEL FRONT ASSYPCB HDMI ASSYRefer to DISASSEMBLY 1.PANEL FRONT ASSYRefer to DISASSEMBL 2.PCB HDMI ASSYand EXPLODED VIEWand EXPLODED VIEWPCB S/W PCB HDMI ASSY (Ref. No. of EXPLODED VIEW : B1) (Ref. No. of EXPLODED VIEW : B23)PCB FUNCTION ENCORDER (Ref.
19、No. of EXPLODED VIEW : B2)PCB FRONTPCB DIGI-CNT ASSYBRACKET HDMI (Ref. No. of EXPLODED VIEW : B3)Refer to DISASSEMBL 4.PCB DIGI-CNT ASSYRefer to DISASSEMBLY 3.BRACKET HDMIPCB H/Pand EXPLODED VIEWand EXPLODED VIEW? (Ref. No. of EXPLODED VIEW : B4)PCB DIGI-CNT ASSYBRACKET HDMI PCB V.AUX (Ref. No. of E
20、XPLODED VIEW : B24) (Ref. No. of EXPLODED VIEW : 42) (Ref. No. of EXPLODED VIEW : B5)PCB DIGI_POWER ASSYPCB FUNCTIONTUNER PACK (Ref. No. of EXPLODED VIEW : B32) (Ref. No. of EXPLODED VIEW : B6)Refer to DISASSEMBL 5.TUNER PACKPCB CNT FUNCTIONand EXPLODED VIEW (Ref. No. of EXPLODED VIEW : B7)TUNER PAC
21、KPCB ENCORDER (Ref. No. of EXPLODED VIEW : 36) (Ref. No. of EXPLODED VIEW : B8)PCB CNT ENCORDERE2/E2A/E1C model (Ref. No. of EXPLODED VIEW : B9)CHASSIS BACKPCB PRE OUT ASSYRefer to DISASSEMBLY 6.CHASSIS BACKRefer to DISASSEMBL 14.PCB PRE OUT ASSYand EXPLODED VIEWand EXPLODED VIEWTRANS MAINCHASSIS BA
22、CKPCB PRE OUT ASSYRefer to DISASSEMBLY 13.TRANS MAIN (Ref. No. of EXPLODED VIEW : 34) (Ref. No. of EXPLODED VIEW : B25)and EXPLODED VIEWPCB SPKTRANS MAIN? (Ref. No. of EXPLODED VIEW : B17) (Ref. No. of EXPLODED VIEW : 30)PCB SPK2 (Ref. No. of EXPLODED VIEW : B18)PCB SPK_CNT (Ref. No. of EXPLODED VIE
23、W : B19)PCB SIRIUS ASSYPCB SUPPLY and PCB POWERRefer to DISASSEMBL 7.PCB SIRIUS ASSYRefer to DISASSEMBLY 12.PCB SUPPLYand EXPLODED VIEWand PCB POWER and EXPLODED VIEWPCB SIRIUS ASSYPCB SUPPLY (Ref. No. of EXPLODED VIEW : B13) (Ref. No. of EXPLODED VIEW : B26)PCB POWER (Ref. No. of EXPLODED VIEW : B1
24、4)PCB VIDEO ASSYRefer to DISASSEMBL 8.PCB VIDEO ASSYand EXPLODED VIEWPCB VIDEO ASSY (Ref. No. of EXPLODED VIEW : B23)PCB INPUT ASSYRefer to DISASSEMBL 9.PCB INPUT ASSYand EXPLODED VIEWPCB INPUT ASSY ( Ref. No. of EXPLODED VIEW : B21)PCB CNT1 (Ref. No. of EXPLODED VIEW : B30)PCB CPU ASSYRefer to DISA
25、SSEMBL 10.PCB CPU ASSYand EXPLODED VIEWPCB CPU ASSY ( Ref. No. of EXPLODED VIEW : B27)PCB MAIN ASSYRefer to DISASSEMBL 11.PCB MAIN ASSYand EXPLODED VIEWPCB MAIN ASSY ( Ref. No. of EXPLODED VIEW : B20)PCB 2CH ASSY ( Ref. No. of EXPLODED VIEW : B11)PCB CNT3 ( Ref. No. of EXPLODED VIEW : B28)PCB CNT2 (
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