Denon-AVR987-avr-sm维修电路原理图.pdf

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1、SERVICE MANUALMODELAVR-2807AVR-987AV SURROUND RECEIVERFor U.S.A.,Canada,China& Taiwan R.O.C. modelTOKYO ,JAPANX0270-2 V.03 DE/CDM 0607Some illustrations using in this service manual areslightly different from the actual set.Please use this service manual with referring to theoperating instructions w

2、ithout fail.For purposes of improvement, specifications anddesign are subject to change without notice.本文中使用、説明都合上現物多少異場合。修理際、必取扱説明書参照上、作業行。前、必読。本機、火災、感電、対安全性確保、配慮、法的電気用品安全法、所定許可得製造。従際、安全性維持、記載注意事項必守。本機仕様性能改良、予告変更。補修用性能部品保有期間、製造打切後8年。注意Denon Brand Company, D&M Holdings Inc.Ver. 3PleaserefertotheMODI

3、FICATION NOTICE.2RadioFans.CN 收音机爱 好者资料库2AVR-2807 / AVR-987Please heed the points listed below during servicing and inspection.Heed the cautions!Spots requiring particular attention when servicing, such asthe cabinet, parts, chassis, etc., have cautions indicated onlabels or seals. Be sure to heed t

4、hese cautions and the cau-tions indicated in the handling instructions.Caution concerning electric shock!(1) An AC voltage is impressed on this set, so touching inter-nal metal parts when the set is energized could causeelectric shock. Take care to avoid electric shock, by for ex-ample using an isol

5、ating transformer and gloves whenservicing while the set is energized, unplugging the powercord when replacing parts, etc.(2)There are high voltage parts inside. Handle with extra carewhen the set is energized.Caution concerning disassembly and assembly!Though great care is taken when manufacturing

6、parts fromsheet metal, there may in some rare cases be burrs on theedges of parts which could cause injury if fingers are movedacross 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 repl

7、acement parts, besure to use parts which have the same properties. In particu-lar, for the important safety parts that are marked ! on wiringdiagrams and parts lists, be sure to use the designated parts.Be sure to mount parts and arrange thewires as they were originally!For safety reasons, some part

8、s use tape, tubes or other insu-lating materials, and some parts are mounted away from thesurface of printed circuit boards. Care is also taken with thepositions of the wires inside and clamps are used to keepwires away from heating and high voltage parts, so be sure toset everything back as it was

9、originally.Inspect for safety after servicing!Check that all screws, parts and wires removed or discon-nected for servicing have been put back in their original posi-tions, inspect that no parts around the area that has beenserviced have been negatively affected, conduct an insulationcheck on the ex

10、ternal metal connectors and between theblades of the power plug, and otherwise check that safety isensured.(Insulation check procedure)Unplug the power cord from the power outlet, disconnect theantenna, plugs, etc., and turn the power switch on. Using a500V insulation resistance tester, check that t

11、he insulation re-sistance between the terminals of the power plug and the ex-ternally exposed metal parts (antenna terminal, headphonesterminal, microphone terminal, input terminal, etc.) is 1M orgreater. If it is less, the set must be inspected and repaired.Concerning important safety partsMany of

12、the electric and structural parts used in the set havespecial safety properties. In most cases these properties aredifficult to distinguish by sight, and using replacement partswith higher ratings (rated power and withstand voltage) doesnot necessarily guarantee that safety performance will be pre-s

13、erved. Parts with safety properties are indicated as shownbelow on the wiring diagrams and parts lists is this servicemanual. Be sure to replace them with parts with the designat-ed part number.(1) Schematic diagrams . Indicated by the ! mark.(2) Parts lists . Indicated by the ! mark.Using parts oth

14、er than the designated partscould result in electric shock, fires or otherdangerous 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 m

15、ake either (1) a leakage current check or (2) a line to chassisresistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the powercord is less than 460 kohms, the unit is defective.CAUTIONCAUTION、点検時注意願。注意事項守！特注意必要個所、部品、捺印注意事項表示。 注意書取扱説明書注意事項

16、必守。感電注意！(1) 、交流電圧印加通電時内部金属部触感電。従通電時、絶縁使用手袋着用、部品交換、電源抜感電注意。(2) 内部高電圧部分、通電時取扱十分注意。分解、組立作業時注意！板金部品端面、部品製造時充分管理、 板金端面鋭利箇所有、 部品端面触指動怪我場合十分注意作業下。 手保護手袋着用。指定部品使用！部品難燃性耐電圧安全上特性持。従交換部品、使用同特性部品使用。特配線図、部品表 ! 印指定安全上重要部品必指定使用。部品取付配線引、 元！安全上、絶縁材料使用、基板浮取付部品。 内部配線引発熱部品高圧部品接近配慮、 必元。後安全点検！取外、部品、配線元、 個所周辺劣化点検、外部金属端子部、

17、電源刃間絶縁、安全性確保確認。（絶縁方法）電源電源抜、 外、電源入。500V 絶縁抵抗計用、電源端子外部露出金属部端子、端子端子、入力端子間、絶縁抵抗値 M 以上、値以下点検修理必要。安全上重要部品本機使用多電気部品、 機構部品安全上、 特別特性持。 特性場合、外観判別、部品高定格（定格電力、耐圧）持使用安全性維持、限。安全上特性持部品、配線図、 部品表表示必指定部品番号使用願。(1) 配線図 ! 表示。(2) 部品表 ! 表示。指定部品異使用場合、感電、火災危険生恐。注意注意RadioFans.CN 收音机爱 好者资料库3AVR-2807 / AVR-987DIMENSION028.5182

18、.5150172172217217066.188.2244.5318.1338.84AVR-2807 / AVR-987WIRE ARRANGEMENTIf wire 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 nois

19、egeneration.Wire arrangement viewed from the top整形図調整部品交換等、類結束移動場合、作業完了時点整形。正整形発生原因。上面整形Front Panel sideBack Panel side5AVR-2807 / AVR-987CAUTION IN SERVICING Initializing AV SURROUND RECEIVERAV SURROUND RECEIVER initialization should be performed when the com, peripheral parts of com, and Digital P

20、.W.B. are replaced.1. Switch off the unit.2. Hold the following NIGHT button and PURE DIRECT button, and switch on the unit.3. Check that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2 buttons and the microprocessor will be initialized.Note:If

21、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.時注意事項AV 初期化周辺部品、Digital 基板等交換場合、AV 初期化行下。1. OFF 。2.NIGHT PURE DIRECT 同時押、

22、押 ON 。3.表示約 1 秒間隔点滅確認後、 2 指離。初期化。注意 :上記 3 状態場合、一度操作 1 直。初期化行客様設定内容工場出荷状態戻、設定内容控初期化後再設定。6AVR-2807 / AVR-987ADJUSTMENTAudio SectionIdling Current (1U-3701-1)Required measurement equipment: DC VoltmeterPreparation(1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at n

23、ormal room tempereture 15C 30C (59F 86F).(2) PresettingPOWER (Power sourse switch)OFFSPEAKER (Speaker terminal)No load(Do not connect speaker, dummy resistor, etc.)Adjustment(1) Remove top cover and set VR101, VR102, VR201, VR301, VR302, VR401, VR402, on 1U-3701-1 (Power Unit) at fully counterclockw

24、ise ().(2) Connect DC Voltmeter to test points (FRONT-Lch: TP301 pin, FRONT-Rch: TP301 pin, CENTER ch: TP101 pin, SURROUND-Lch: TP301 pin, SURROUND-Rch: TP301 pin, SURROUND BACK-Lch: TP101 pin, SURROUND BACK-Rch: TP101 pin).(3) Connect power cord to AC Line, and turn power switch ON.(4) Presetting.M

25、ASTER VOLUME : - counterclockwise ( min.)MODE: 7CH STEREOFUNCTION: CD(5) Allow 2 minutes, and turn VR101 clockwise () to adjust the TEST POINT voltage to 6.5 mV 0.5 mV DC.(6) After 10 minutes from preset, turn VR101 to set the voltage to 8 mV 0.5 mV DC.(7) Adjust the Variable Resistors of other chan

26、nels in the same way.(8) After 5 minutes from (6), turn VR101 to set the voltage to 8 mV 0.5 mV DC.(9) Adjust the Variable Resistors of other channels in the same way.調整電流調整（1U-3701-1）調整必要測定器：DC Voltmeter準備(1) 、扇風機風通良場所避、通常使用状態置。周囲温度15 30 、湿度常湿。(2) 電源OFF端子無負荷（抵抗器接続。 ）調整(1) 上、1U-3701-1（）VR101、VR102、V

27、R201、VR301、VR302、VR401、VR402反時計方向（）回切状態。(2) （FRONT-Lch: TP301 pin、 FRONT-Rch: TP301 pin、CENTER ch: TP101 pin、SURROUND-Lch: TP301 pin、SURROUND-Rch:TP301 pin、SURROUND BACK-Lch: TP101 pin、SURROUND BACK-Rch: TP101 pin） DC Voltmeter 接続。(3) 電源 AC100V（95 105V 範囲可）接続、電源“ON”。(4) ON 後、次。MASTER VOLUME（音量調節）反時計

28、方向（）回、最小状態。SPEAKER（端子）無負荷（、抵抗器接続。 ）MODE：7CH STEREOFUNCTION ： CD(5) 2 分以内 VR101 時計方向（）回電圧次調整。6.5 mV 0.5 mV DC(6) 予備調整 10 分後 VR101 回、次電圧設定。8 mV 0.5 mV DC(7) 同方法各可変抵抗調整。(8) (6) 項設定 5 分後 VR101 回、次電圧設定。8 mV 0.5 mV DC(9) 同方法各可変抵抗調整。7AVR-2807 / AVR-987DC VoltmeterVR402VR401SBR chSBL chVR302FR chVR102SR chV

29、R101VR201SL chC chVR301FL chAudio SectionSL chFR chFL chSR chTP301C chSBR chSBL chTP1018AVR-2807 / AVR-987VIDEO Section1. SETTING(1) Connect the oscilloscope to the Y-signal and C-signal of S MONITOR OUT terminal and each terminate at 75 Ohms.(2) Connect the oscilloscope to the Y-signal, PB-signal a

30、nd CB-signal, PR-signal and CR-signal of COMPONENT MONITOR OUT2 terminal and each terminate at 75 Ohms. Use the 75 Ohms resistance must be 1%(3) DVD test disc : DVDT-S01(4) COMPONENT VIDEO OUT of DVD player is connected to COMPONENT IN-1.2.BEFORE ADJUSTMENT 2.1. Setting the Oscilloscope as below.(1)

31、 PB/CB, PR/CR, C(a) TIME/DIV:10s(b) VOLT/DIV:100mV(Use the probe : x10 )(2) Y(a) TIME/DIV:10s(b) VOLT/DIV:200mV(Use the probe : x10 )Power on. Power SupplyUSA & Canada: 120VEurope: 230VJapan: 100VChina & Korea: 220V2.2. Setup the DVD player and confirmation of the stators(1) Set to INTERLACED mode a

32、t the COMPONENT OUT.(2) Confirm the DVD players out put level is equal as the item 2.4. in following.2.3. Preparation(1) Push POWER button with pressing DIMMER and ROOM EQ buttons.(2) Confirm 0.0dB appearing on the FL display.(3) Turn the FUNCTION knob to select DVD input.(4) Push PURE DIRECT button

33、 to select PURE DIRECT. (FL display disappears and becomes adjustment mode.)(5) Push OPEN/CLOSE button of DVD player, then open the Disc Tray.Set DVD test disc (DVDT-S01) on the Disc Tray, and then push CLOSE button.(6) DVD player FL display appear STOP, push PLAY but-ton to playback DVD.(7) Push th

34、e DISPLAY button of remote control of DVD player unit and then appear the ON-Screen Display (GUI) on the monitor TV.(8) Push the +10 and 2 button, select Title 12 of DVD.(9) Push the ENTER button, playback Title 12. (color bar 75%)1. 手順(1) S MONITOR OUT 端子 Y 信号 C 信号（終端抵抗：75）接続。(2) COMPONENT MONITOR

35、OUT2 端子（Y, PB/CB, PR/CR ）（終端抵抗：75）接続。75 抵抗 1品使用事。(3) DVD ：DVDT-S01 用意。(4) DVD COMPONENT VIDEO OUT COMPONENT IN-1 接続。2. 調整2.1. 下記設定(1) PB/CB, PR/CR, C(a) TIME/DIV:10s(b) VOLT/DIV:100mV（ x10 使用）(2) Y(a) TIME/DIV:10s(b) VOLT/DIV:200mV（ x10 使用）電源電圧：100V2.2. DVD 設定確認(1) COMPONENT OUT 設定 。(2) DVD 出力以下 2.4

36、. 合確認。2.3. 準備手順(1) AC 挿入、 DIMMERROOM EQ押電源ON 。(2) FL 表示右上 VOL 表示 0.0dB 確認。(3) FUNCTION 回、入力 DVD 切替。(4) PURE DIRECT押、PURE DIRECT 。 （FL 表示消、調整。 ）(5) DVD OPEN/CLOSE押開、上 DVD （DVDT-S01）後、 CLOSE押。(6) DVD 表示管上 STOP 表示、 PLAY押、再生。(7) DVD DISPLAY押 (GUI) 画面出。(8) 番号 +10 ,2 押、 Title 12 選択。(9) ENTER押、Title 12 再生。

37、（75信号）9AVR-2807 / AVR-9872.4. Procedure(1) Adjust the signal of S MONITOR OUT by the wave of os-cilloscope.(a) Target, Y-signalPoint:1U-3737 VR601Adjustment Value:714 14mVWaveform(b) Target, C-signalPoint:1U-3737 VR602Adjustment Value:286 5mVWaveform(2) Adjust the signal of COMPONENT OUT by the wave

38、 of oscilloscope.(a) Target, Y-signalPoint:1U-3737 VR603Adjustment Value:714 14mVWaveform(b) Target, PB/CB-signalPoint:1U-3737 VR604Adjustment Value:*525 10mVWaveform* : 486 10mV for U.S.A. & Canada model Y-signal of S MONITOR OUTYCC-signal of S-MONITOR OUTYY-signal COMPONENT OUTPB/CB-signal COMPONE

39、NT OUTPB/CB2.4. 手順(1) S MONITOR OUT 信号上波高値調整。(a) Y 信号調整個所：1U-3737 VR601調整値： 714 14mV波形(b) C 信号調整個所：1U-3737 VR602調整値：286 5V波形(2) COMPONENT OUT 信号上波高値調整。(a) Y 信号調整個所：1U-3737 VR603調整値： 714 14V波形(b) PB/CB信号調整個所：1U-3737 VR604調整値：525 10V波形S MONITOR OUT Y 信号YCS-MONITOR OUT C 信号YCOMPONENT OUT Y 信号PB/CBCOMPO

40、NENT OUT PB/CB信号10AVR-2807 / AVR-987(c) PR/CR信号調整個所：1U-3737 VR605調整値：525 10V波形PR/CRCOMPONENT OUT PR/CR信号(c) Target, PR/CR-signalPoint:1U-3737 VR605Adjustment Value:*525 10mVWaveform* : 486 10mV for U.S.A. & Canada model 1U-3737 DIGITAL UNITPR/CR-signal COMPONENT OUTPR/CRVR601 S-YVR602 S-CVR603 YVR60

41、4 PB/CBVR605 PR/CR11AVR-2807 / AVR-987BLOCK DIAGRAM (1/2) AUDIO BLOCK DIAGRAM 12AVR-2807 / AVR-987BLOCK DIAGRAM (2/2) VIDEO BLOCK DIAGRAM 13AVR-2807 / AVR-987 CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK Wave formCH1: D-DATA1CH1: DATACH2: fsCH3: 64fsCH4: 256fs3CH1: DATACH2: fsCH3: 64fs214AVR-2807 / AVR-9

42、87LEVEL DIAGRAMS (1/6)15AVR-2807 / AVR-987LEVEL DIAGRAMS (2/6)16AVR-2807 / AVR-987LEVEL DIAGRAMS (3/6)17AVR-2807 / AVR-987LEVEL DIAGRAMS (4/6)18AVR-2807 / AVR-987LEVEL DIAGRAMS (5/6)19AVR-2807 / AVR-987LEVEL DIAGRAMS (6/6)20AVR-2807 / AVR-987SEMICONDUCTORSOnly major semiconductors are shown, general

43、 semiconductors etc. are omitted to list.主半導体記載。汎用半導体記載省略。Note : Abbreviation ahead of IC No. indicates the name of P.W.B., etc.注） ：IC No. 前記号、基板名称表。 MA : MAIN CPU UNIT PA : POWER AMP UNIT PS : POWER SUPPLY UNIT FR : FRONT UNIT AV : AUDIO/VIDEO UNIT DI : DIGITAL UNIT 1. ICsM30626 (MA : IC506) M30626

44、F Terminal Function PinPin NameSymbolI/OTypeDetOp (Int.)Op (Ext.)ResSTBYstopFUNCTION1P96/SOUT4iPod DOCK DETI-EdZO/LO/LDOCKs MINI JACK connection detect input (Connected:H )2P95/CLK4NCOC-ZO/LO/LNot used3P94/TB4NCOC-ZO/LO/LNot used4P93/TB3ACKSIMOOC-ZO/LO/LMAIN-SUB com comm. control pin5P92/SOUT3MOSIOC

45、-EdZO/LO/LMAIN-SUB com comm. control pin6P91/SIN3SOMII-EdZO/LO/LMAIN-SUB com comm. control pin7P90/CLK3CLKMOOC-EdZO/LO/LMAIN-SUB com comm. control pin21AVR-2807 / AVR-9878BYTEBYTE-GND (Ext. data bus bit width switching, 16bit: L)9CNVCSCNVSSI-Ed-Single-chip/Micro-processor mode switching (Normal sing

46、le-chip: L,Rewrite boot program start:H input set)10P87RST SUB(RESET2)OC-EdZO/LO/LSUB-com reset output11P86NCOC-ZO/LO/LNot used12RESETRESETI-Lv-EuLIIReset input (Reset=L)13XOUTX2O-Oscillator connection14VSSVSS-GND15XINX1I-IIOscillator connection16VCCVCC-+5V17P85/NMI_NMII-Not used (Fixed to H)18P84/I

47、NT2B.DOWNI-E &L-EuZIIPower down detect (Power down:L)19P83/INT1PROTECTIONI-E &L-EdZIIProtection detect input (Detected:L)20P82/INT0REMOCONI-E &L-ZIIRemote control signal input21P81NCOC-ZO/LO/LNot used22P80REQ XMI-EdZO/LO/LXM RADIO control pin23P77FSTB1OC-ZO/LO/LSTB output for function switching cont

48、rol (TC94A46FG)24P76FSTB2OC-ZO/LO/LSTB output for RECINH/EXT.IN switching control (TC9273N-015,TC9274N-017)25P75A.EXPOEOC-EdZO/LO/LAudio expander control pin(TC4094BF)26P74A.EXPSTBOC-ZO/LO/LAudio expander control pin(TC4094BF)27P73/CTS2A.EXPDOC-ZO/LO/LAudio expander control DATA output pin (TC4094BF

49、)28P72/CLK2 A.EXPCLKOC-ZO/LO/LAudio expander control CLK output pin (TC4094BF)29P71/RXD2RXD MIXMOI-ZIO/LXM RADIO control pin30P70/TXD2TXD MOXMION-EuZO/LO/LXM RADIO control pin31P67/TXD1TXD MO232IOC-EuZO/LO/LData transfer output to outside(AMX)32P66/RXD1RXD MI232OI-EdZIO/LData receive input from outs

50、ide(AMX)33P65/CLK1VSCLI/OC-EuZIO/LVideo selector control pin (NJW1321)34P64/CTS1VSDAI/OC-EuZIO/LVideo selector control pin (NJW1321)35P63/TXD0TXD_iPodOC-ZO/LO/LiPod control pin36P62/RXD0RXD iPodI-ZO/LO/LiPod control pin37P61/CLK0E.VOL_CLKOC-ZO/LO/LE-VR control output (TC94A32F,TC9459F)38P60/CTS0E.VO