Denon-DVD2900-sacd-sm维修电路原理图.pdf

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1、SERVICE MANUALMODELDVD-2900DVD AUDIO-VIDEO / SUPER AUDIO CD PLAYERFor U.S.A., Canada, Europe& Japan model16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPANTelephone: 03 (3837) 5321X0168V.02 DE/CDM 0304注意前、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

2、切後 8年。Some illustrations using in this service manual areslightly different from the actual set.Please use this service manual with referring tothe operating instructions without fail.For purposes of improvement, specifications anddesign are subject to change without notice.修理際必取扱説明書参照上、作業行,。 本文中使用、

3、説明都合上現物多少異場合。Ver. 2Ver. 2RadioFans.CN 收音机爱 好者资料库22DVD-2900SAFETY 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 chec

4、k 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 thepower cord is less than 460 kohms, the unit is defective.LASER RADIATIONDo not stare into beam or view directly with optical instruments, class 3A laser pr

5、oduct.(1)(2)500V1M(1)(2)RadioFans.CN 收音机爱 好者资料库33DVD-2900DISASSEMBLY(Follow the procedure below in reverse order when reassem-bling.)1.Top Cover(1) Remove 10 screws on the top and both sides, and 2 screws on the rear.(2) Widen the Top Cover a little laterally, then detach it with sliding in the arro

6、w direction.2.Loader Panel, Front Panel2.1. When the Disc Tray can be ejected electrically(1) After removing the Top Cover, proceed as follows.(2) Plug the power cord to the wall outlet, switch on the pow-er, and press the “OPEN/CLOSE” button to open the Disc Tray.(3) Detach the Loader Panel by lift

7、ing it in the arrow direc-tion.(4) Press the “OPEN/CLOSE” button to close the Disc Tray, then unplug the power cord.(5) Disconnect the wire (CX025, CX061) connecting the Front Panels P.W.B. and the power PWB in the Chassis.(6) Remove 4 top screws and 4 bottom screws, then detach the Front Panel to t

8、he arrow direction.(7) Disconnect the FFC (CX171) connecting the Front Pan-els P.W.B. and the main P.W.B. in the Chassis.各部（組立、逆順序行。 ）1.(1) 側面及上面 10 本、後 2 本。(2) 左右少広、矢印方向、。2.、2.1. 電動場合(1) 状態作業。(2) 電源電源差込、電源押、 OPEN/CLOSE押、。(3) 矢印方向持上、。(4) OPEN/CLOSE押、電源電源抜。(5) 内基板本体側電源基板接続 (CX025,CX061) 。(6) 上本、下本、矢印

9、方向。(7) 内基板本体側基板接続 FFC（CX171）。44DVD-29002.2. When the Disc Tray cannot be ejected electri-cally(1) After removing the Top Cover, proceed as follows.(2) Insert a screwdriver(-) into the left hole of the Mecha. Fix Bracket, and push the Plate Gear of the DVD Mecha. slowly to open the Disc Tray.(3) Remo

10、ve the Loader Panel, and close the Disc Tray.(4) Detach the Front Panel following the same steps de-scribed on the previous page 1.2.1. (5) - (7).3.Video P.W.B.(1) Disconnect 33P FFC (CY331) and 5P connector (CY053).(2) Remove 2 screws on the Video P.W.B.(3) Remove 2 screws from the rear.(4) Detach

11、the Video P.W.B. to the arrow direction.2.2. 電動場合(1) 状態作業。(2) 左側穴（）、押開。(3) 、閉。(4) 前項 1.2.1. （5）（7）同様、。3.基板(1)33P FFC（CY331) 5P （CY053) 。(2) 基板 2 本。(3) 側 4 本。(4) 基板矢印方向。55DVD-29004.DVD Mecha.(1) Disconnect 27P FFC (CY271) and 13P FFC (CY131) from the Main P.W.B.(2) Disconnect 12P connector (CY121) fr

12、om Power P.W.B.(3) Remove 4 screws on the DVD Mecha and 2 screws on the Main P.W.B., then take it off in the arrow direction.5.Audio P.W.B./Power P.W.B.5.1. Audio P.W.B.(1) Disconnect 4P connector (CY041).(2) Remove 5 screws on the Audio P.W.B., 4 screws from the rear.5.2. Power P.W.B.(1) Remove 5 s

13、crews on the Power P.W.B.(2) Disconnect 2P connector (CX024)4.DVD (1) 基板 13P FFC（CY131) 。(2) 基板 12P （CY121) 。(3) DVD 4 本、基板 2 本、矢印方向 DVD 。5.基板 / 基板5.1. 基板(1) 4P （CY041) 。(2) 基板 5 本側 4 本。5.2. 基板(1) 基板 5 本。(2) （CX024）。66DVD-29006.Mecha.Unit(1) Remove 2 screws on the top of the Mecha. Unit, and de-tach

14、 the Guide Clamp Bracket with sliding in the arrow di-rection.(2) Solder the short-circuit on the Traverse Unit. (Refer to “Traverse Unit Disassembly” on the page 7.(3) Disconnect the wires (CX151, CX241, CX031, CX051) connecting with the Main PWB.(4) Turn over the Mecha. Unit/Main PWB assembly, and

15、 re-move 3 screws.7.Traverse Unit DisassemblyCaution: The optical pickup can be damaged easily by static electricity charged on human body. Take necessary anti-static measures when repairing around the optical pickup.7.1. Guide Clamp Bracket disassembly(1) Remove 2 screws.(2) Remove Guide Clamp Brac

16、ket to arrow direction.6.(1) 上 2 本、矢印方向。(2) 半田付。 （ 7 参照）(3) 基板接続（CX151, CX241, CX031, CX051）。(4) 一体 / 基板裏返、 2 本。7.注意：光、人体帯電静電気等静電破壊。光周辺修理際、必要静電対策行。7.1. (1) 2 本。(2) 矢印方向。77DVD-29007.2. Tray disassembly(1) Remove to arrow direction.(2) Solder the short-circuit (see in the frame).7.3. Traverse Unit dis

17、assembly(1) Remove 24P FFC (CX241), 15P FFC (CX151), 5P PH WIRE (CX051) and 3P PH WIRE (CX031) connecting with from the Main P.W.B.(2) Remove 4 screws fixing Damper.(3) Remove Traverse Unit to arrow direction.7.2. (1) 矢印方向。(2) 半田付行。 （枠内図参照 )7.3. (1) 基板接続 24P FFC（CX241)、15P FFC（CX151),5P PH （CX051)、3

18、P PH （CX031) 。(2) 固定 4 本。(3) 矢印方向。88DVD-2900Note for disassembly Traverse Unit(1) When assembling, reverse the order of the above.(2) When inserting Tray, confirm boss on Slide Cam set to ditch of the Tray (Compare with below drawing).分解注意(1) 組立、上記逆順序行。(2) 組込時、溝合確認。 （下図参照）99DVD-2900DIAGNOSTICS OF OP

19、TICAL PICKUPAND REPLACING TRAVERSE UNITMake failure diagnostics of the Optical Pickup as follows.If the laser drive current becomes more than 1.5 times of theinitial value, the Optical Pickup should be replaced.The laser drive current is registered on the seal attached tothe rear of the Mecha.Unit.I

20、n case of replacing the Pickup, change the whole part of theTraverse Unit.No mechanical adjustment is necessary after the replace-ment.光故障診断交換次順序故障診断行。駆動電流初期値 1.5 倍以上場合光交換目安。電流初期値、後部上記入。交換場合、単位交換。調整不要。 Disc no read,unsteady playback, etc.Laser drive current checkHF wave form check(Refer to page 109)

21、Traverse Unit replacing (See page 7 for details)Laser current registering after replacement.Present value exceeds the ini-tial value by 1.5 timesStep: Disc playbackWrite the measured value on the seal attached to the Mecha. Unit*As to the measuring method, refer to page 10,11. Example:DVD 30mACD 30m

22、A例：読込再生等駆動電流確認 波形確認（109 参照）交換（詳細 7 ）交換後電流記入現在値初期値1.5 倍手順：再生時 Iop 値後方上重貼等更新。*Iop 測定方法、10,11 参照。1010DVD-29001. Label Indication of DVD Mechanism.2. Note for Handling the Laser Pick-Upthe protection for the damage of laser diode.If you want to change the optical device unit from any other units, you mu

23、st keep the following.(1) It should be done at the desk already took measures the static electricity in care of removing the OPUs (Optical device unit) connector cable.(2) Workers should be put on the Earth Band.(3) It should be done to add the solder to the short land to prevent the broken Laser di

24、ode before removing the 24P FFC cable.(4) Dont touch OPUs connector parts carelessly. 3. Replacement of the Laser Pick-up (Traverse Unit) Check the Iop(Laser drive current)If the present Iop (current) value exceeds.+50% of the ini-tial value, replace the Traverse unit(Laser Pick-up) with a new one.4

25、. Iop Measurement MethodWhen measuring Laser drive current (Iop), playback thediscs (CD,DVD) described below, measure Iop for CDLaser and DVD Laser by the test point (+5V-A2 -LD(CD),LD(DVD)on the Main P.W.B.Test Disc :DVD/DVDT-S01 or commercially available discs. :CD/TCD-784 (manufactured by ALMEDIO

26、 INC) or commercially available discs. 1.DVD 表示2.取扱注意破壊防止。光素子交換、以下遵守。(1) 光素子接続、 静電対策行上作業。(2) 作業者、使用。(3) 破壊防止、 24P FFC 前半田付。(4) 光素子部触。3. ( ) 交換Iop( 駆動電流）。現在 Iop 値初期値 50越場合、（）交換。4.Iop 測定方法駆動電流測定場合、下記（CD,DVD) 再生。Main基板上(+5V-A2LD(CD),LD(DVD)、CD DVD Iop 測定。：DVD/DVDT-S01 市販同等 ：CD/TCD-784（ALMEDIO 社製）市販同等La

27、ser current consumption value ex) DVD mA, CD mA駆動電流値例）DVD mA, CD mA1111DVD-29004.1. DVD Laser current measurement(1) Connect the oscilloscope to +5V-A2 of test point for GND side and LD(DVD) of test point for signal side.(2) Playback the title 1 / chapter 1 of the DVD Test Disc.(3) Measure the volta

28、ge between +5V-A2 and LD(DVD), cal-culate Iop by the formula as shown below. 4.2. CD Laser current measurement(1) Connect the oscilloscope to +5V-A2 of test point for GND side and LD(CD) of test point for signal side.(2) Playback the track 1 of the CD Test Disc.(3) Measure the voltage between +5V-A2

29、 and LD(CD), calcu-late Iop by the formula as shown below.LD(DVD)+5V-A2OscilloscopeIopMeasurement Voltage Value14 (Resistance value)- -=IopMeasurement Voltage Value11.75 (Resistance value)- -=4.1. DVD 電流測定(1) +5V-A2(GND)LD(DVD)( 信号 ) 接続。(2) DVD 11 再生。(3) +5V-A2LD(DVD)間電圧測定次式Iop算出。4.2. CD電流測定(1) +5V-

30、A2(GND)LD(CD)( 信号 ) 接続。(2) CD 1 再生。(3) +5V-A2 LD(CD) 間電圧測定、 次式 Iop 算出。LD(DVD)+5V-A2OscilloscopeIop測定電圧値14(抵抗値)- -=Iop測定電圧値11.75(抵抗値)- -=LD(DVD)LD(CD)+5V-A2Main Unit foil side1212DVD-29005. Optical Pick-up Diagnostics and Replace-mentWhen repairing, carry out failure diagnostics by following theproce

31、dure described below.If the present value of the laser drive current is 50% up to ini-tial value, it is the point of the pickup replacement.In case of the pickup replacement, replace the Traverse Unitwith no adjustment.The initial value is indicated on the label on back side ofMecha. If the present

32、value exceeds 80mA, replace the Traverse Unita new one.Cause: Damaged electrostatically when replaced.NO DISC indicated, Playback not smooth,etc.Laser drive current checkHF signal checkTraverse Unit replacement (refer to page 6)Laser drive current check after replacement.If the present value is less

33、 than 80mA, write on the new label by hand, put on the new label over the old label.Present value：50% up to initial value5.光診断交換交換時以下手順故障診断行。駆動電流現在値初期値 50以上、交換。交換場合交換、調整不要。初期値、後部表示。現在値 80mA 以上、再度交換。原因：交換時、静電破壊。”NO DISC ”表示、再生不良等駆動電流 信号交換（ 6 参照）交換後、駆動電流。現在値80mA以下新上手書、旧上貼付。現在値：初期値 50以上1313DVD-2900SERV

34、ICE MODE1. Aging Mode(1) preparation(a) Equipment used: Any one of DVD Karaoke Disc (contain-ing more than 10 titles).(b) Unit setting : No spec other than the following procedure (Aging mode).At the tray open status, press the “POWER” button to turn on the power while pressing the “PLAY” and “OPEN/

35、CLOSE” buttons for DVD operation simulta-neously. mark on the FL lights, and the unit is set to the heat run mode.(2) procedure(a) According the above, set to the aging mode.(b) Set a DVD Karaoke disc to the tray and press the “PLAY” button twice. mark on the FL blinks, and aging operation(after pla

36、yback title-1 and title-10 of the disc, the tray open/close is made automatically, then playback the title-1 again) starts. This aging operation continues automatically until it is stopped or it stops caused by an error.In case of some error in DVD, the following error messages are displayed on the

37、FL.2. Initial Setting Mode(1) Preparation(a) Equipment used: None(b) Unit setting: No spec other than the following procedure(2) Procedure(a) Initialize the DVD player when com, peripheral parts of com, or Main P.W.B. has been replaced in servicing.(b) Carry out the following to restore factory sett

38、ing mode. At the player stop condition, press 3 buttons for DVD oper-ation(“PLAY”,”OPEN/CLOSE”, and “ SKIP”) until “INITIALIZE” appears and disappears in the FL.(“Initialized” appears and disappears on the TV screen.)(c) All user setting will be lost and its factory setting will be restored when thi

39、s initialization is made. Be sure to mem-orize your setting for restoring again after the initializa-tion.No Error contents FL display1 Bad Disc ERROR 022 Focus Error ERROR 023 Read Error ERROR 024 Tracking Error ERROR 045Tray Error ERROR 056 Navigation Pack Read Error ERROR 061.(1) 準備(a) 使用機器：DVD （

40、10 以上物） 。(b) 本体設定：下記設定以外規定無。（）開状態 DVD 再生+開 / 閉同時押電源押電源入、FL 管点灯、設定。(2) 手順(a) 上記手順設定。(b) DVD 入、 再生 2 回押、FL 管点滅、 1 10 再生後、自動開 / 閉、再度 1 再生行。 動作。停止、停止動作自動繰返。DVD 部発生場合、FL 管下表表示。2.初期設定(1) 準備(a) 使用機器：無(b) 本体設定：下記手順以外規定無。(2) 手順(a) 、周辺部分基板交換場合、 初期化行。(b) 初期化下記手順行、工場出荷設定。停止状態、 操作部再生+開 / 閉+( ） 3 重押 管 INITIALIZE

41、表示消押。 （ 画面”初期化”表示消。 ）(c) 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。No.内容FL 管表示1不良 ERROR 022 ERROR 023 ERROR 024 ERROR 045 ERROR 056 ERROR 061414DVD-29003. -Com Firm Check Mode(1) Preparation(a) Equipment used: None(b) Unit setting: No spec other than the following procedure.(2) Procedure(a) Press the “POWER” b

42、utton to turn on the power while pressing the “PLAY” and “OPEN/CLOSE” buttons for DVD operation simultaneously.(b) FL all light mode.This mode is for detecting FL defects. Press “STILL/PAUSE ” on the remote control unit once to light all FL segments.(c) DVD com and main unit com firm check mode. Thi

43、s mode is for displaying the status of each com em-ployed. DVD com firm: Press the “MENU” button or ,button. Each time the “MENU” button or , but-ton on the remote control unit is pressed, com firm is displayed one after another.Ex.: DRV 030307, B/E 6237,PANEL 6236Set Serial No.(lower 5 digits)Drive

44、 comB/E comPanel com100001-Ver.030307(Display)030307Ver.6237(Display) 6237Ver.6236(Display)62362343.(1) 準備(a) 使用機器：無(b) 本体設定：下記手順以外規定無。(2) 手順(a) 操作部再生開 / 閉押電源押電源入。(b) 管全点灯。 管故障判別用、 / 押 管全点灯。(c) 及本体確認搭載各状態表示。 ：、押。 、押次表示。表示例： DRV 030307 B/E 6237 PANEL 6236番号( 下 5 桁 )B/E100001 Ver.030307( 表示 )030307Ver

45、.6237( 表示 )6237Ver.6236( 表示 )62362341515DVD-29004. Setting up the test mode(1) Setting up In order to set up the test mode, you press STOP button and REV button simultaneously in the heat-run mode.Fun-damentaly, you can set up the test mode at the stop state after disc loading. (Heat-run mode is set

46、 up by pressing PLAY button,holding OPEN/CLOSE button. If it becomes heat run mode, PLAY indicator and PAUSE indicator will light up.)LOADING display (2) Mode Select There are two, servo adjustment value display mode and trace mode (error rate display), in the mode.(a) If the REV button or the FWD b

47、utton is pushed in the test mode, it will become servo adjustment value display mode.(b) If the REV button or the FWD button is pushed again, it will become the trace mode (error rate display).(3) Mode decision The mode will be decided if the PLAY button is pushed in the state where the mode is chos

48、en.(a) In the case of servo adjustment value display mode, a focus offset adjustment value is displayed. (n:adjustment value)(b) In the case of trace mode (error rate display), trace of the circumference in one layer is chosen. (F: An address and an error rate display F at the time of undecided.)(4)

49、 Change within the mode If the REV button or the FWD button is pushed in the statewhere the mode is decided, a change within the mode willbe made.(a) In the case of servo adjustment value display mode (re-fer to table 1 servo adjustment value display mode de-tails) (XX:selection mode 31-62 n:adjustm

50、ent value)FL display (The display part of 13 digits)12345678910111213TFL display (The display part of 13 digits)12345678910111213FL display (The display part of 13 digits)12345678910111213FL display (The display part of 13 digits)12345678910111213FL display (The display part of 13 digits)12345678910