Yamaha-Stagepas300-pa-sm(1) 维修电路原理图.pdf

《Yamaha-Stagepas300-pa-sm(1) 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Yamaha-Stagepas300-pa-sm(1) 维修电路原理图.pdf（54页珍藏版）》请在收音机爱好者资料库上搜索。

1、STAGEPAS 3001SERVICE MANUALPA011775 CONTENTS（目次）SPECIFICATIONS（総合仕様） . 3PANEL LAYOUT（） . 4DIMENSIONS（寸法図）. 4CIRCUIT BOARD LAYOUT（） . 5DISASSEMBLY PROCEDURE（分解手順） . 6IC BLOCK DIAGRAM（IC図）. 15CIRCUIT BOARDS（基板図）. 16INSPECTIONS（検査） . 23TROUBLE SHOOTING（）. 26PARTS LISTBLOCK DIAGRAM（）CIRCUIT DIAGRAM（回路図）

2、Copyright (c) Yamaha Corporation. All rights reserved. PDF-K9611 05.04HAMAMATSU, JAPAN20050321-86100SpeakerSpeakerMixerRadioFans.CN 收音机爱 好者资料库STAGEPAS 3002WARNINGComponents having special characteristics are marked and must be replaced with parts having specification equal to thoseoriginally install

3、ed.IMPORTANT NOTICEThis manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basicservice procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users,and have therefore

4、not been restated.WARNING :Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury,destruction of expensive components and failure of the product to perform as specified. For these reasons, we adviseall Yamaha product owners that all serv

5、ice required should be performed by an authorized Yamaha Retailer or theappointed service representative.IMPORTANT :This presentation or sale of this manual to any individual or firm does not constitute authorization certification,recognition of any applicable technical capabilities, or establish a

6、principal-agent relationship of any form.The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and servicedepartments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and chan

7、ges inspecification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact thedistributors Service Division.WARNING :Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulatedby g

8、rounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.)IMPORTANT :Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product

9、contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable)components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to causecancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER,

10、 ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor!If you come in contact with solder or components located inside the

11、 enclosure of this product, wash your hands before handling food.This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd.(3 wires)IMPORTANT NOTICE FOR THE UNITED KINGDOMConnecting the Plug and CordWARNING: THIS APPARATUS MUST BE EARTHEDIMPORTANT. The wires in this mains lead are

12、coloured in accordance with the following code:GREEN-AND-YELLOWBLUEBROWN: EARTH: NEUTRAL: LIVEAs the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows:The wire which is coloured GREEN-and-Y

13、ELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or colored GREEN or GREEN-and-YELLOW.The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.The wire which is coloured BROW

14、N must be connected to the terminal which is marked with the letter L or coloured RED.印部品、安全維持重要部品。交換場合、安全必指定部品使用。RadioFans.CN 收音机爱 好者资料库STAGEPAS 3003SPECIFICATIONS General SpecificationsMaximum Output Power150 W+150 W/6 10 % THD at 1 kHz (SPEAKER L/R)100 W+100 W/6 1 % THD at 1 kHz (SPEAKER L/R)Freq

15、uency Response-3 dB, 0 dB, +1 dB 20 Hz20 kHz, 1 W Output/6 (WithoutMUSIC/SPEECH, EQ and SP EQ Circuit) (SPEAKER L/R)-3 dB, 0 dB, +1 dB 20 Hz20 kHz, +4 dBu 10 k LoadMUSIC/SPEECHswitch=MUSIC (MONITOR OUT, REC OUT)Total Harmonic Distortion1 % 1 kHz, 50 W Output Power (SPEAKER L/R)0.5 % 20 Hz20 kHz, +14

16、 dBu 10 k (MONITOR OUT, REC OUT)Hum & Noise (20 Hz20 kHz, Rs=150 , MIC/LINE switch=MIC)-65 dBu Residual output noise (SPEAKER L/R)-90 dBu Residual output noise (MONITOR OUT, REC OUT)-67 dBu MONITOR OUT control & one CH LEVEL controlat nomunal level (CH14)(MONITOR OUT)Crosstalk (1 kHz)-70 dB between

17、input channelsWeight18 kg (mixer and two speakers)Power Consumption70 WStereo Input Channel Equalization:Shelving turnover/rolloff frequency:3 dB before maximum cut or boost.15 dBHIGH10 kHz shelvingLOW100 Hz shelvingAccessoriesPower Cable, Speaker Cable, Owners ManualOptionMicrophone SpeakerEnclosur

18、eBass-reflex typeSpeaker UnitLF: 8 (20 cm) ConeHF: 1 (2.54 cm) Compression DriverCross Over Frequency4 kHzFrequency Range55 Hz20 kHzMaximum Output Level112 dB (1 m) 一般仕様最大出力150 W+150 W/6 10 % THD at 1 kHz (SPEAKER L/R)100 W+100 W/6 1 % THD at 1 kHz (SPEAKER L/R)周波数特性-3 dB, 0 dB, +1 dB 20 Hz20 kHz, 1

19、 W 出力/6 (MUSIC/SPEECH, EQ and SP EQ Circuit 除) (SPEAKER L/R)-3 dB, 0 dB, +1 dB 20 Hz20 kHz, +4 dBu 10 k LoadMUSIC/SPEECH=MUSIC (MONITOR OUT, REC OUT)全高調波歪率1 % 1 kHz, 50W Output Power (SPEAKER L/R)0.5 % 20 Hz20 kHz, +14 dBu 10 k (MONITOR OUT, REC OUT)& (20 Hz20 kHz, Rs=150 , MIC/LINE =MIC)-65 dBu 残留

20、(SPEAKER L/R)-90 dBu 残留 (MONITOR OUT, REC OUT)-67 dBu MONITOR OUT&1 (CH14)(MONITOR OUT) (1 kHz)-70 dB 入出力間質量18 kg (2台)消費電力70 W入力特性/周波数:最大可変幅(15 dB)対3 dB下HIGH10 kHz LOW100 Hz 付属品電源、 、 取扱説明書、 保証書 型LF: 8 (20 cm) HF: 1 (2.54 cm) 周波数4 kHz再生周波数帯域55 Hz20 kHz最大出力音圧112 dB (軸上1 m)総合仕様STAGEPAS 3004PANEL LAYOUT

21、（）DIMENSIONS（寸法図）160290255455.52751372-M8x25120MSC231MSC231MSC231MSC23196.3Unit: mm（単位）Speaker（部）Mixer（部）qwerti!5!1!7!4!6y!3!2!0ouq POWER switch (POWER)w AC IN jack (AC IN端子)e SPEAKER L/R jacks (SPEAKER L/R端子(付属用)r REC OUT L/R jacks (REC OUT L/R端子)t MONITOR OUT L(MONO)/R jacks (MONITOR OUT L(MONO)/R

22、端子)y Channel input jacks (CH 1 to 4) (入力端子 (CH 14)u Stereo channel input jacks (CH 5/6, 7/8) (入力端子(CH 5/6、 7/8)i MIC/LINE switches (MIC/LINE)o Equalizer HIGH/LOW (EQ()!0 REVERB switches (REVERB)!1 REVERB control (REVERB)!2 LEVEL control (LEVEL)!3 MASTER LEVEL control (MASTER LEVEL)!4 SPEECH/MUSIC sw

23、itch (SPEECH/MUSIC)!5 MONITOR OUT control (MONITOR OUT)!6 LEVEL meter (LEVEL)!7 POWER indicator (POWER)STAGEPAS 3005CIRCUIT BOARD LAYOUT（）NETWORK2NETWORK1orNETWORK2NETWORK1orPOWERPOWERFILTERINPUTJACK2JACK1AJACK1BorFILTERVRVRSpeaker LF （LF ）Power amplifier unit（）Power amplifier unit（）Speaker HF （HF ）

24、Front viewRight side viewRear viewSTAGEPAS 3006DISASSEMBLY PROCEDURE1.Assy（所要時間：約1 分）1-1120A4本外、Assy外。 （図 1）2.LF （）（所要時間：約2分）2-1 Assy 外。 （1 項参照）2-2100A 4 本外、 LF（）外。 （図 1）2-3LF（）取付束線 LF（赤黒）外。 （写真 1）3.部、部（所要時間：約 3 分）3-1 Assy 外。 （1 項参照）3-280A5本80B4本外、 部、部別。 （図 1,2）3-3LF（）取付束線 LF（赤黒）外。 （写真 1）3-4HF（）取付束線

25、 HF（黄青）外。 （写真 2） 部部開、LF（）端子、HF（）端子傷注意。80A:Bind Head Tapping Screw-A ( A )5.0X35 NI-BL (AAX61640)100A: Bind Head Tapping Screw-B ( B )4.0X18 NI-BL (AAX61660)120A: Bind Head Tapping Screw-B ( B )4.0X10 NI-BL (AAX61680)Fig.1 (図 1)Front grille assembly(Assy)80A100A80A120A120A100A80A120A100A80A120A100A80

26、ASpeaker LF (Woofer)(LF ()Front cabinet unit(部)80B80B80B80BRear cabinet unit(部)80B:Bind Head Tapping Screw-A (A)5.0X35 NI-BL (AAX61640)Fig.2 ( 図 2)1.Front Grille Assembly(Time required: About 1 minute)1-1Remove the four (4) screws marked 120A. Thefront grille assembly can then be removed. (Fig.1)2.S

27、peaker LF (Woofer)(Time required: About 2 minutes)2-1Remove the front grille assembly. (See procedure 1)2-2Remove the four (4) screws marked 100A. Thespeaker LF (woofer) can then be removed. (Fig.1)2-3Remove the wire LF (red/black) attached to thespeaker LF (woofer). (Photo.1)3.Front Cabinet Unit, R

28、ear Cabinet Unit(Time required: About 3 minutes)3-1Remove the front grille assembly. (See procedure 1)3-2Remove the five (5) screws marked 80A and four(4) screws marked 80B. The front cabinet unit andrear cabinet unit can then be separated. (Fig.1,2)3-3Remove the wire LF (red/black) attached to thes

29、peaker LF (woofer). (Photo.1)3-4Remove the wire HF (yellow/blue) attached to thespeaker HF (tweeter). (Photo.2) *Take care not to open the front cabinet unit andrear cabinet unit too wide or the speaker LF(woofer) terminal and speaker HF (tweeter)terminal may be damaged.（分解手順）7STAGEPAS 30070A:Bind H

30、ead Tapping Screw-B (B)4.0X20 NI-BL (AAX61630)Fig.3 ( 図 3)Wire LF (Red) (束線LF(赤)Speaker LF (Woofer) (LF()Wire LF (Black) (束線LF(黒)Photo 1 ( 写真 1)Wire HF (Blue) (束線HF(青)Wire HF (Yellow) (束線HF(黄)Speaker HF (Tweeter) (HF()Photo 2 ( 写真 2)4.HF （）（所要時間：約4分）4-1 Assy外。 （1 項参照）4-2部、部別。 （3 項参照）4-370A 2 本外、部HF

31、（） 外。（図3）5.Assy、NETWORK1 NETWORK2（所要時間：約7 分）5-1 Assy外。 （1 項参照）5-2部、部別。 （3 項参照）5-3134本外、 部 Assy 外。 （図 4）5-4N404本外、NETWORK1 NETWORK2 固定金具 C、D 外。 （図 4）70AFront cabinet unit(部)Speaker HF (Tweeter)(HF ()13 X 4Network assembly(Assy)Network holder C(固定金具C)Network holder D(固定金具D)Rear cabinet unit(部)N40 X 4N

32、ETWORK2NETWORK1or13:Bind Head Tapping Screw-B ( B )3.0X10 NI-BL (AAX61710)N40: Pan Head Tapping Screw-B (B)3.0X8 CR3 (AAX61700)Fig.4 ( 図 4)4.Speaker HF (Tweeter)(Time required: About 4 minutes)4-1Remove the front grille assembly. (See procedure 1)4-2Separate the front cabinet unit and rear cabinet u

33、nit.(See procedure 3)4-3Remove the two (2) screws marked 70A. Thespeaker HF (tweeter) can then be removed fromthe front cabinet unit. (Fig.3)5.Network Assembly, NETWORK1 CircuitBoard or NETWORK2 Circuit Board(Time required: About 7 minutes)5-1Remove the front grille assembly. (See procedure 1)5-2Sep

34、arate the front cabinet unit and rear cabinet unit.(See procedure 3)5-3Remove the four (4) screws marked 13. Thenetwork assembly can then be removed from therear cabinet unit. (Fig.4)5-4Remove the four (4) screws marked N40. Thenetwork holders C and D can then be removed fromthe NETWORK1 circuit boa

35、rd or NETWORK2 circuitboard. (Fig.4)STAGEPAS 3008Fastner head()Mixer assembly(Assy)Rear case side(側)Panel side(側)Cover mold assembly(Assy)Coin driver or minus driver()Fig.5 ( 図5)Mount bracket assembly(Assy)16 X 3140aJACK1AJACK1Bor16:Bind Head Tapping Screw-B ( B ) 4.0X10 NI-BL (AAX61680)140a: Hexago

36、nal Nut ( 特殊六角) M15.0 BLFig.6 ( 図6)6. Assy、 Assy（所要時間：約1 分）6-1、形溝 2 箇所 OPEN位置回、 Assy Assy 外。 （図 5）7.JACK1A JACK1B （所要時間：約2 分）7-1AssyAssy外。 （6 項参照）7-216 3 本外、JACK1A JACK1B共Assy外。 （図 6）7-3140a特殊六角1個外、 AssyJACK1AJACK1B外。 （図 6）6.Mixer Assembly, Cover Mold Assembly(Time required: About 1 minute)6-1Rotate

37、 the two (2) straight slots on the fastenerheads with a coin driver or minus driver until eachstraight slot is in alignment with the OPEN position.The mixer assembly or cover mold assembly canthen be removed. (Fig.5)7.JACK1A Circuit Board or JACK1B CircuitBoard (Time required: About 2 minutes)7-1Rem

38、ove the mixer assembly or cover moldassembly. (See procedure 6)7-2Remove the three (3) screws marked 16. Themount bracket assembly can then be removedtogether with the JACK1A circuit board or JACK1Bcircuit board. (Fig.6)7-3Remove the hexagonal nut marked 140a. TheJACK1A circuit board or JACK1B circu

39、it board canthen be removed from the mount bracket assembly.(Fig.6)9STAGEPAS 300340 X 8Panel assembly(Assy、側)Connector assembly A(束線A)Connector assembly B(束線B)Connector assembly C(束線C)Rear case assembly(Assy、側)VR circuit board - CN24(VRCN24)POWER circuit board - CN2(POWERCN2)POWER circuit board - CN

40、9(POWERCN9)340: Hexagonal Tapping Screw-B ( 六角 B ) 3.0X8 NI-BL (AAX62010)Fig.7 ( 図 7)8.Assy （側、 側）（所要時間：約3 分）8-1 Assy外。 （6 項参照）8-23408本外、 Assy側側別。 （図7） （下記注意事項参照）側取外接続時注意 側外時、3本束線（束線A,B,C）注意。 （図 7） 側取付際、3 本束線（束線A,B,C） A B C 順接続。 （図 7）側（ Assy）分解 以下各部品（9 項13 項）取外前、Assy （6項参照） 、 側 （8項参照）外。9.INPUT （所要時間

41、：約6 分）9-1印刷面190a特殊六角 8 個、200 10 本外。 （図 8）9-2VRCN21、 CN26INPUT外。 （図 8） 170 4 個180 4 個、INPUT 構成部品。INPUT交換際必取外、新INPUT取付。 （図 9）8.Mixer Assembly (Panel Assembly, RearCase Assembly)(Time required: About 3 minutes)8-1Remove the mixer assembly. (See procedure 6)8-2Remove the eight (8) screws marked 340, and

42、separate the panel assembly and rear caseassembly from the mixer assembly. (Fig.7) (See thecautions below:) *When removing the panel assembly, take carenot to damage the three connector assemblies(connector assembly A, B, C). (Fig.7) *When assembling the panel assembly, connect thethree connector as

43、semblies (connector assemblyA, B, C) in alphabetical order (AB C). (Fig.7)Disassembly of Panel Assembly (Mixer Assembly) *Before removing the following parts (in procedure 9to procedure 13), remove the mixer assembly (seeprocedure 6), rear case assembly (see procedure 8).9.INPUT Circuit Board(Time r

44、equired: About 6 minutes)9-1Remove the eight (8) hexagonal nuts marked 190aand ten (10) screws marked 200 from the panelprinting side. (Fig.8)9-2Remove the INPUT circuit board from the connectorsCN21 and CN26 of the VR circuit board. (Fig.8) *The four (4) push buttons marked 170 and four(4) push spa

45、cers marked 180 are not parts ofthe INPUT circuit board. When replacing theINPUT circuit board, be sure to remove theseparts and attach them to the new INPUT circuitboard. (Fig.9)STAGEPAS 30010Fig.8 ( 図8)190a: Hexagonal Nut ( 特殊六角 ) M11.0200:Bind Head Tapping Screw-B ( B ) 3.0X10 NI-BL (AAX61710)Pan

46、el assembly(Assy)200 X 10140 Volume knob (Red) (VR(赤)130 Volume knob (White) X 6(VR(白)CN21 CN26 190a X 8INPUTVR10.VR （所要時間：約 10 分）10-1INPUT 外。 （9 項参照）10-2印刷面130VR（白）6個、 140VR（赤）1 個外。 （図 8）10-3160 5 本外、VR外。（図 10） 以下各部品、 VR構成部品。 VR交換際必取外、新VR取付。（図 11） 90:5 個 100B: VR（S） （白）1 個 110A: VR（S） （緑）12 個 120B:

47、 VR（S） （青）1 個170 Push button ()180 Push spacer ()INPUT160 X 5Panel assembly(Assy)VRFig.9 (図 9)160: Bind Head Screw ( 小 )3.0X8 CR3 (AAX61910)Fig.10 ( 図10)10.VR Circuit Board(Time required: About 10 minutes)10-1Remove the INPUT circuit board. (See procedure 9)10-2Remove the six (6) volume knobs (white

48、) marked130 and the volume knob (red) marked 140 fromthe panel printing side. (Fig.8)10-3Remove the five (5) screws marked 160. The VRcircuit board can then be removed. (Fig.10) *The following parts are not parts of the VRcircuit board. When replacing the VR circuitboard, be sure to remove these par

49、ts and attachthem to the new VR circuit board. (Fig.11) 90:Push buttons5 pcs. 100B: Volume knob (S) (white)1 pc. 110A: Volume knobs (S) (green) 12 pcs. 120B: Volume knob (S) (blue)1 pc.11STAGEPAS 30011.FILTER （所要時間：約 4 分）11-1VR CN27 CN31 、FILTER 外。 （図 12）12.JACK2 （所要時間：約 4 分）12-1印刷面220a特殊六角2個外、JACK2

50、 外。 （図 13）13.電源、AC （所要時間：約5 分）13-1電源AC半田付束線2本（束線1P,束線2P）線外。 （図 14）13-2電源押外。 （図 15）13-3AC 押外。 （図 16）90 Push button X 5 ()120B Volume knob (S) (Blue) (VR(S)(青)110A Volume knob (S) (Green) X 12 (VR(S)(緑)100B Volume knob (S) (White) (VR(S)(白)VRCN27CN31CN28CN32Panel assembly(Assy)to VR circuit board - CN