Denon-AVR3806-avr-sm维修电路原理图.pdf
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1、SERVICE MANUALMODELAVR-3806AV SURROUND RECEIVERFor U.S.A. & Canada modelTOKYO ,JAPANX0253 V.01 DE/CDM 0508Some illustrations using in this service manual areslightly different from the actual set.Please use this service manual with referring to theoperating instructions without fail.For purposes of
2、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. 1RadioFans.CN 收音机爱 好者资料库2AVR-3806 / AVC-3920SAFET
3、Y 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 check. If the leakage curr
4、ent 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.(1)(2)500V1M(1)(2)RadioFans.CN 收音机爱 好者资料库3AVR-3806 / AVC-3920DIMENSION028.5182.5150172172217217066.188.2244.5318.1338.84AVR-3806 / AVC-3920WIRE ARRANGEMENTIf wir
5、e 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 noisegeneration.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
6、因。上面整形Front Panel sideBack Panel side5AVR-3806 / AVC-3920CAUTION IN SERVICING Initializing AV SURROUND RECEIVERAV SURROUND RECEIVER initialization should be performed when the com, peripheral parts of com, and Digital P.W.B. are replaced.1. Switch off the unit.2. Hold the following NIGHT button and
7、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 step 3 does not work, start over from step 1. All user settings will be lost and
8、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、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
9、化後再設定。6AVR-3806 / AVC-3920ADJUSTMENT 調整Audio SectionIdling Current (1U-3701-1)Required measurement equipment: DC VoltmeterPreparation(1) Avoid direct blow from an air conditioner or an electricfan, and adjust the unit at normal room tempereture 15C 30 C (59 F 86 F).(2) PresettingPOWER (Power sourse
10、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 (PowerUnit) at fully counterclockwise ().(2) Connect DC Voltmeter to test points (FRONT-Lch:TP30112pin, FRONT-R
11、ch: TP10156pin,CENTER ch: TP30134pin, SURROUND-Lch: TP10134pin, SURROUND-Rch: TP10112pin,SURROUND BACK-Lch: TP30178pin, SURROUNDBACK-Rch: TP30156pin).(3) Connect power cord to AC Line, and turn power switchON.(4) Presetting.MASTER VOLUME : - counterclockwise (min.)MODE: 7CH STEREOFUNCTION: CD(5) All
12、ow 2 minutes, and turn VR101 clockwise () toadjust the TEST POINT voltage to 6.5 mV 0.5 mV DC.(6) After 10 minutes from preset, turn VR101 to set thevoltage to 8 mV 0.5 mV DC.(7) Adjust the Variable Resistors of other channels in thesame way.(8) After 5 minutes from (6), turn VR101 to set the voltag
13、e to8 mV 0.5 mV DC.(9) Adjust the Variable Resistors of other channels in thesame way.(1U-3701-1):DC Voltmeter(1)1530(2)OFF()(1)1U-3701-1VR101, VR102, VR201, VR301, VR302, VR401, VR402()(2)(FRONT-Lch: TP30112pin, FRONT-Rch: TP10156pin, CENTER ch: TP30134pin,SURROUND-Lch: TP10134pin, SURROUND-Rch:TP1
14、0112pin, SURROUND BACK-Lch: TP30178pin, SURROUND BACK-Rch: TP30156pin)DCVoltmeter(3)AC100V95105VON(4) ONMASTER VOLUME()SPEAKERMODE : 7CH STEREOFUNCTION : CD(5) 2VR101()6.5mV 0.5mV DC(6)10VR1018mV 0.5mV DC(7)(8) (6)5VR1018mV 0.5mV DC(9)7AVR-3806 / AVC-3920DC VoltmeterVR402VR401SBR chSBL chVR302SR chV
15、R102FR chVR101FL chC chVR301SL chAudio SectionFL chSR chSL chFR chTP301C chSBR chSBL chTP1018AVR-3806 / AVC-3920VIDEO 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-si
16、gnal and 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 bel
17、ow.(1) 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
18、mode at 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
19、button 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) P
20、ush the 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 MO
21、NITOR 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
22、以下 2.4. 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
23、 再生。(75信号)9AVR-3806 / AVC-39202.4. Procedure(1) Adjust the signal of S MONITOR OUT by the wave of os-cilloscope.(a) Target, Y-signalPoint:1U-3705 VR601Adjustment Value:714 14mVWaveform(b) Target, C-signalPoint:1U-3705 VR602Adjustment Value:286 5mVWaveform(2) Adjust the signal of COMPONENT OUT by the
24、 wave of oscilloscope.(a) Target, Y-signalPoint:1U-3705 VR603Adjustment Value:714 14mVWaveform(b) Target, PB/CB-signalPoint:1U-3705 VR604Adjustment Value:*525 10mVWaveformY-signal of S MONITOR OUTYCC-signal of S-MONITOR OUTYY-signal COMPONENT OUTPB/CB-signal COMPONENT OUTPB/CB2.4. 手順(1) S MONITOR OU
25、T 信号上波高値調整。(a) Y 信号調整個所:1U-3705 VR601調整値: 714 14mV波形(b) C 信号調整個所:1U-3705 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-3705 VR603調整値: 714 14V波形(b) PB/CB信号調整個所:1U-3705 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/CBCOMPONENT OUT PB/CB信号10AVR-3806 / AVC-3
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