Yamaha_emx512sc_emx312sc_service_manual 电路图维修原理图.pdf

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1、SERVICE MANUAL HAMAMATSU, JAPAN CONTENTS（目次） SPECIFICATIONS ( 総合仕様 ).3/5 PANEL LAYOUT ( ).7 CIRCUIT BOARD LAYOUT ( ) .10 WIRING DIAGRAM( 基板結線図 ) .11 DIMENSIONS ( 寸法図 ).13 DISASSEMBLY PROCEDURES ( 分解手順 ) .14 LSI PIN DESCRIPTION (LSI 端子機能表 ).24 IC BLOCK DIAGRAM (IC 図 ) .26 CIRCUIT BOARDS ( 基板図 ).28 IN

2、SPECTION( 検査 ) .50/58 PSCIRCUITBOARDREPAIRGUIDE (PS 故障修理 ).66/76 PARTSLIST BLOCK STAND-BY switch z POWER switch and indicator h PHANTOM j LIMITER k POWER AMP 切替切替 l YS Processing ; STAND-BY z POWER 、、 Rear panel（） h k l ; z j xc x SPEAKERS jacks c AC IN connector x SPEAKERS 端子端子 c AC IN 端子端子 EMX51

3、2SC/EMX312SC 10 CIRCUIT BOARD LAYOUT（） Rear View（背面図） Top View（上面図） Front View（正面図） Side View（側面図） PA OUT OUT DSP PS JACK SW MIX OUT PA PS DSP SW JACK MIX EMX512SC/EMX312SC 11 WIRING DIAGRAM（基板結線図） CN301 CN302 W304W303 CN303 W106 W104 W103 W107W105 W102W101 CN101(14P) CN405 CN409 CN408 W401 CN407 CN

4、406 CN404 CN416(13P) CN415 (14P) CN402 CN401 CN410 CN411 W601 CN301(20P)CNM02(20P) CN202 (3P) CN201 (3P) CN102 (3P) CN101 (3P) CN002 (3P) CN001 (3P) CN401 (13P) CN302 (5P) CN402 (7P) CN401 (7P) CN402 (5P) W602 W305 W402 CN202 (3P) CN201 (3P) CN102 (3P) CN101 (3P) CN002 (3P) CN001 (3P) 7 1 2 3 4 e569

5、0 8 w q r OUT PS SW DSP FAN MIX JACK PA indicates that connectors are connected directly to circuit boards. 直接基板接続表。 BLACK BLACK RED ORANGE BROWN * EMX512SC only EMX512SC * * YELLOW YELLOW GRAY GRAY BLUEWHITE VIOLET EMX512SC/EMX312SC 12 Parts in parentheses are not available as spare parts. 内部品部品準

6、備。内部品部品準備。 No.Part No.Assembly NameConnectionRemarks 線材名接続備考線材名接続備考 1 (WE29820)Connector Assembly B&C 束線 PA-W102OUT-CN301Violet 2 (WE29900)Connector Assembly B&C 束線 PA-W101OUT-CN302Yellow 3 (WE29840)Connector Assembly B&C 束線 PA-W104PS-CN405Red, EMX512SC only 4 (WE29850)Connector Assembly B&C 束線 PA

7、-W106PS-CN406Orange 5 (WE29860)Connector Assembly B&C 束線 PA-W107PS-CN408Blue 6 (WE29870)Connector Assembly B&C 束線 PA-W105PS-CN409White, EMX512SC only 7 (WE29910)Connector Assembly B&C 束線 PA-W103OUT-CN303Black 8 (WF58250)Connector Assembly B&C 束線 OUT-W305PS-CN406Black 9 (WE29930)Connector Assembly B&

8、C 束線 OUT-W304PS-CN402Brown 0 (WE29940)Connector Assembly B&C 束線 OUT-W303PS-CN401Gray q (WE29880)Connector Assembly B&C 束線 SW-W602PS-CN411Yellow w (WE29940)Connector Assembly B&C 束線 SW-W601PS-CN410Gray e (WE34870)Jumper Wire SMV2J P=2 14-300 PS-CN415PA-CN101 r (WE25580)Jumper Wire SMV2J P=2 13-230 PS

9、-CN416MIX-CN401 EMX512SC/EMX312SC 13 DIMENSIONS（寸法図） 71 66.1 541082842 286264 71 66.1 298 307.8 4402.5 442.5 Unit: mm 単位：単位： mm 14 EMX512SC/EMX312SC 分解手順準備準備一部取外、軸長必要。 1. （所要時間：約（所要時間：約5分）分） 1-1690 8 本外、外。 (図1) PS CN416 、 CN410、 CN411 束線（灰色、黄色）外、分離。（写真1、写真2）印刷上取外場合、外。（図印刷上取外場

10、合、外。（図 1）） DISASSEMBLY PROCEDURES Preparing A screwdriver with a long shaft is required to remove some screws. 1.Front Panel Unit (Time required: about 5 minutes) 1-1Remove the eight (8) screws marked 690. (Fig.1) Remove the jumper wire from CN416 on the PS circuit board and the wires (gray and y

11、ellow) from CN410 and CN411 on the PS circuit board. The front panel unit can then be removed. (Photo.1 & Photo2) * When removing the front panel only, remove the screws and knobs marked with . (Fig.1) 220 mm or more 630630150130170 130 180 150 180130 690 630 630 690690 50 50 130 63050630 690 50: Bi

12、nd Head Screw 4x8 MFZN2B3 (WE969000) 小小 130: Bind Head Tapping Screw-S 3x6 MFZN2B3 (WE877800) 150: Bind Head Tapping Screw-S 3x6 MFZN2B3 (WE877800) 170: Bind Head Tapping Screw-B 3x12 MFZN2B3 (WE998100) 180: Flat Fillister H. Tapping 3x8 MFZN2W3 (WF790100) 平頭平頭 630: Bind Head Tapping Screw-P 4x16 MF

13、ZN2B3 (WE980800) 690: Bind Head Tapping Screw-P 5x25 MFZN2W3 (WG158600) Fig.1 （図 1） PS circuit board (PS) CN416 Photo.1 （写真 1） CN411CN410 PS circuit board (PS) Photo.2 （写真 2） 15 EMX512SC/EMX312SC 2.JACK, DSP and MIX Circuit Boards 1 Remove the front panel unit. (See procedure 1.) 2 Remove the knobs

14、specified in the Fig.2 and Table.1. 3 Remove the eighteen (18) screws marked 500, twelve (12) screws marked 490 and thirteen (13) hexagonal nuts and washers. (Fig.2 & Fig.3) 4 Remove the fourteen (14) screws marked 510. The JACK, DSP and MIX circuit boards can then be removed together. (Fig.3) 5 Rem

15、ove the four (4) screws marked 514 and the shield plate can then be removed. (Fig.4) 2-1JACK Circuit Board (Time required: about 5 minutes) 2-1-1Remove the two (2) hexagonal spacer marked 511, the screw marked 410 and the two (2) screws marked 430. The JACK circuit board can then be removed. (Fig.3

16、& Fig.4) 2-2DSP Circuit Board (Time required: about 4 minutes) 2-2-1Remove the two (2) screws marked 470 and the cover DSP. (Fig.3) 2-2-2Remove the four (4) screws marked 450. The DSP circuit board can then be separated from the MIX circuit board. (Fig.3) 2-3MIX Circuit Board (Time required: about 1

17、 minute) 2-3-1Remove the shield. (Fig.3) * When attaching the JACK circuit board, be sure to pass the jumper wire from the MIX circuit board through the slit on the JACK circuit board. (Photo.3) * The following parts are not included in the circuit boards. Be sure to remove them when replacing the c

18、ircuit boards. (Fig.3) JACK:360 Knob Black 370 Knob Black 610 Button D-Gray/White (LINE/MIC) MIX:340 Button Milky/D-Gray (PHANTOM, YSProcessing, STAND-BY) 390 Hexagonal Spacer 580 Button * When replacing 340 Button Milky/D-Gray, replace three buttons at the save time. Also when replacing 610 Button

19、D-Gray/White, replace four buttons at the same time. 3.Front Frame (Time required: about 10 minutes) 3-1Remove the front panel unit. (See procedure 1.) 3-2Remove the JACK, DSP and MIX circuit boards. (See procedure 2.) 3-3Remove the two (2) screws marked 300. (Fig.3) 3-4Remove the ten (10) screws ma

20、rked 260. The front frame can then be separated from the front panel. (Fig.3) 2.JACK、 DSP、 MIX 1 外。（1項参照） 2 図2表1外。 3 50018本、49012本、13個六角外。（図2、図3） 4 51014本外、JACK 、DSP 、MIX 外。（図3） 5 514 4本外、 H 外。（図4） 2-1JACK （所要時間：約5分） 2-1-15116角2個、 410 1本、 430 2本外、 JACK 外。（図3、図4） 2-2DSP （所要時間：約4分） 2-2-1

21、470 2本外、DSP 外。（図3） 2-2-2450 4本外、 MIX DSP 外。（図3） 2-3MIX （所要時間：約1分） 2-3-1 DSP 外。（図3） JACK 取付、取付、 MIX 束線束線 JACK 通。（写真通。（写真 3）下記部品基板構成部品。基板交換外使用。（図）下記部品基板構成部品。基板交換外使用。（図 3）） JACK: 360 継手継手 370 継手継手 610 (LINE/MIC) MIX:340 (PHANTOM,YSProcessing, STAND-BY) 390 六角六角 580 340 PFL 交換場

22、合、同時交換場合、同時 3 個交換。個交換。 610 HPF 交換場合同時交換場合同時 4 個交換。個交換。 3. （所要時間：約（所要時間：約10分）分） 3-1 外。 (1項参照) 3-2JACK 、 DSP 、 MIX 外。 (2 項参照) 3-3300 2本外。（図3） 3-4260 10本外、印刷上分離。 (図3) EMX512SC/EMX312SC 16 Table.1（表 1） 560 600 570 490 490 500 500 490: Hex. Socket Set Screw 3x6 MFZN2B3 (WF419300) 角孔付角孔付

23、500: Bonding Tapping Screw-B 3x10 MFZN2B3 (WE878000) Fig.2 （図 2） No.DescriptionQtyControl 560Knob White/M-Gray 8LEVEL (CH1-11/12) 570Knob Red/M-Gray 2MASTER (MONITOR, MAIN) 600Knob Black 色上 1PROGRAM EMX512SC/EMX312SC 17 470 Cover DSP (DSP) SW circuit board (SW) Power switch knob (PSW) Switch assembl

24、y (Assy) Hexagonal nut & washer (六角&) DSP circuit board (DSP) Shield (DSP) 450 430 510 410 510 580 390 390 360 370 290 610 390 510 510 340 300 260 260 260: Bind Head Tapping Screw-P 3x10 MFZN2B3 (WF268000) 290: Bind Head Tapping Screw-P 3x6 MFZN2W3 (WE877900) 300: Hex. Socket Set Screw 3x6 MFZN2B3 (

25、WF419300) 角孔付角孔付 410: Bind Head Tapping Screw-S 3x5 MFZN2W3 (WE980200) 430: Bind Head Tapping Screw-P 3x6 MFZN2W3 (WE877900) 450: Bind Head Tapping Screw-P 3x6 MFZN2W3 (WE877900) 470: Bind Head Tapping Screw-S 3x5 MFZN2W3 (WE980200) 510: Bind Head Tapping Screw-P 3x10 MFZN2W3 (WF001000) Fig.3 （図 3）

26、Shield plate (H) 514 511 511: Hexagonal Spacer (WF514300) M3 514: Bonding Tapping Screw-S 3x6 MFZN2W3 (WF572000) Fig.4 （図 4） 18 EMX512SC/EMX312SC 4.SW （所要時間：約（所要時間：約5分）分） 4-1 外。 (1項参照) 4-2300 2 本外、 Assy 外。（図3） 4-3PSW 外。 (図3) 4-4290 2本外、 PS SW 外。 (図3) 4.SW Circuit Boards (Time required: about

27、5 minutes) 4-1Remove the front panel unit. (See procedure 1.) 4-2Remove the two (2) screws marked 300. The switch assembly can then be removed from the front panel unit (Fig.3) 4-3Remove the power switch knob. (Fig.3) 4-4Remove the two (2) screws marked 290. The SW circuit board can then be removed

28、from the holder. (Fig.3) Slit () CN401 JACK circuit board (JACK) MIX circuit board (MIX) Photo.3 （写真 3） 19 EMX512SC/EMX312SC 5.PS （所要時間：約（所要時間：約10分）分） 5-1 外。 (1項参照) 5-2写真4表2束線外。 5-3628A 2本外、線外。(写真5) 5-4640 6本外、 PS 外。 (図5) 5.PS Circuit Board (Time required: about 10 minutes) 5-1Remove the front

29、 panel unit. (See procedure 1.) 5-2Remove the wires specified in the Photo.4 and Table.2. 5-3Remove the two (2) screws marked 628A and the GND wire. (Photo.5) 5-4Remove the six (6) screws marked 640 and the spacers. The PS circuit board can then be removed. (Fig.5) Rear grounding brackets (金具) Space

30、r () Case(風防) PS circuit board (PS) 628B 640 624A 628B 624B 627 Fan(DC) 640: Bind Head Tapping Screw-P 3x10 MFZN2W3 (WF001000) 624B: Bind Head Tapping Screw-P 3x6 MFZN2W3 (WE877900) 627: Bind Head Screw 4x30 MFZN2W3 (WF105900) 小小 Fig.5 （図 5） 20 EMX512SC/EMX312SC 6.DC （所要時間：約（所要時間：約5分）分） 6-1 外。

31、(1項参照) 6-2PS 外。 (5項参照) 6-3624A 1本外。 (図5、写真5) 6-4628B 2本外、 DC 風防外。（図5、写真5） 6-56272本外、 DC 外。 (図5) 6.Fan (Time required: about 5 minutes) 6-1Remove the front panel unit. (See procedure 1.) 6-2Remove the PS circuit board. (See procedure 5.) 6-3Remove the screw marked 624A. (Fig.5 & Photo.5) 6-4Rem

32、ove the two (2) screws marked 628B. The fan and case can then be removed. (Fig.5 & Photo.5) 6-5Remove the two (2) screws marked 627. The fan can then be separated from the case. (Fig.5) Photo.4 （写真 4） Table.2（表 2） No.ConnectorColor of WireConnected to 1 CN401GRAYOUT Circuit Board 2 CN402BROWNOUT Cir

33、cuit Board 3 CN404-Fan 4 CN405REDPA Circuit Board (EMX512SC only) 5 CN406ORANGEPA Circuit Board 6 CN407BLACKOUT Circuit Board 7 CN408BLUEPA Circuit Board 8 CN409WHITEPA Circuit Board (EMX512SC only) 9 CN415-Power amplifier unit PS circuit board (PS) 1 3 7 8 6 5 4 9 2 PS circuit board (PS) 628A Fan (

34、DC) 628B 624A 628A 628B 624A: Bind Head Tapping Screw-P 3x6 MFZN2W3 (WE877900) 628A: Bind Head Screw 4x8 MFZN2W3 (WE968500) 小小 628B: Bind Head Screw 4x8 MFZN2W3 (WE968500) 小小 Photo.5 （写真 5） 21 EMX512SC/EMX312SC 7. （所要時間：約（所要時間：約5分）分） 7-1 外。 (1項参照) 7-2PS 外。 (5項参照) 7-3DC 外。 (6項参照) 7-4624B 4 本外、

35、金具外。 (図5) 7-5630 6 本外、外。 (図1) 印刷上取外場合、外。（図印刷上取外場合、外。（図 6）） 8.OUT （所要時間：約（所要時間：約10分）分） 8-1 外。 (7項参照) 8-2OUT CN301、CN302、CN303束線(紫、黄色、黒) 外。 (写真6) 8-3190 2本 1個外。 (図6) 8-4150 2 本、 170 2 本、 180 4本、六角 2個外。 (図1、図6) 8-5185 1本外、AC 線外、 OUT 外。 (図6、写真7) 7.Rear Panel Unit (Time required: abo

36、ut 5 minutes) 7-1Remove the front panel unit. (See procedure 1.) 7-2Remove the PS circuit board. (See procedure 5.) 7-3Remove the fan. (See procedure 6.) 7-4Remove the four (4) screws marked 624B and the rear grounding brackets. (Fig.5) 7-5Remove the six (6) screws marked 630. The rear panel unit ca

37、n then be removed. (Fig.1) * When removing the rear panel only, remove the screws marked with . (Fig.6) 8.OUT Circuit Board (Time required: about 10 minutes) 8-1Remove the rear panel unit. (See procedure 7.) 8-2Remove the wires (violet, yellow and black) from CN301, CN302 and CN303 on the OUT circui

38、t board. (Photo.6) 8-3Remove the two (2) screws marked 190 and the spacer. (Fig.6) 8-4Remove the two (2) screws marked 150, two (2) screws marked 170, four (4) screws marked 180 and two hexagonal nuts. (Fig.1 & Fig.6) 8-5Remove the screw marked 185 and the GND wire from the AC inlet. The OUT circuit

39、 board can then be removed. (Fig.6 & Photo.7) Hexagonal nut (六角) Spacer () OUT circuit board (OUT) Case (風防) Power amplifier unit () 130 50 170150 180 190 130 185 Back(裏面) 50: Bind Head Screw 4x8 MFZN2B3 (WE969000) 小小 130: Bind Head Tapping Screw-S 3x6 MFZN2B3 (WE877800) 150: Bind Head Tapping Screw

40、-S 3x6 MFZN2B3 (WE877800) 170: Bind Head Tapping Screw-B 3x12 MFZN2B3 (WE998100) 180: Flat Fillister H. Tapping 3x8 MFZN2W3 (WF790100) 平頭平頭 190: Bind Head Tapping Screw-P 3x6 MFZN2W3 (WE877900) Fig.6 （図 6） 22 EMX512SC/EMX312SC 9. （所要時間：約（所要時間：約10分）分） 9-1 外。 (7項参照) 9-2OUT 外。 (8項参照) 9-31305本外。

41、(図1、図6) 9-450 4 本外、風防外。(図1、図6) 9-5束線風防抜。 (写真8、写真9) 9.Power Amplifier Unit (Time required: about 10 minutes) 9-1Remove the rear panel unit. (See procedure 7.) 9-2Remove the OUT circuit board. (See procedure 8.) 9-3Remove the five (5) screws marked 130. (Fig.1 & Fig.6) 9-4Remove the four (4) scre

42、ws marked 50. The power amplifier unit then can be removed from the rear panel unit, together with the case. (Fig.1 & Fig.6) 9-5Remove the wires from the slit of the case. (Photo.8 & Photo.9) CN302CN301 CN303 Photo.6 （写真 6） 185 185: Bind Head Screw 4x8 MFZN2W3 (WF106500) 小小 Photo.7 （写真 7） Slit ()Sli

43、t () Photo.8 （写真 8）Photo.9 （写真 9） 23 EMX512SC/EMX312SC 10.PA （所要時間：約（所要時間：約10分）分） 10-1 外。 (7項参照) 10-2OUT 外。 (8項参照) 10-3 外。 (9項参照) 10-450a14本外。 (図7) 10-5EMX512SC 場合 60a 12 本、 EMX312SC 場合60a4本外、 PA 外。 (図7) 10.PA Circuit Board (Time required: about 10 minutes) 10-1Remove the rear panel unit. (Se

44、e procedure 7.) 10-2Remove the OUT circuit board. (See procedure 8.) 10-3Remove the power amplifier unit. (See procedure 9.) 10-4Remove the fourteen (14) screws marked 50a. (Fig.7) 10-5Remove the twelve (12) screws (for EMX512SC) or four (4) screws (for EMX312SC) marked 60a. The PA circuit board the

45、n can be removed. (Fig.7) EMX312SC EMX512SC Radiation sheet (放熱D) 50a 60a 50a 60a 50a Radiation sheet (放熱C) Radiation sheet (放熱B) Radiation sheet (放熱A) Heat sink () 60a 60a 50a 50a 50a 60a 50a: Bind Head Screw 3x12 MFZN2Y (VB763800) 小小 60a: Bind Head Tapping Screw-B 3x8 MFZN2BL (EP600190) Fig.7 （図

46、7） EMX512SC/EMX312SC 24 LSI PIN DESCRIPTION（LSI 端子機能表） AK5381VT-E2 (X5219A00) ADC (Analog to Digital Converter). 24 PCM1742KEG/2K (X3538A00) DAC (Digital to Analog Converter). 24 MX23L8103TC-90G (X5922A00) CPU. 24 YMW767-VTZ (X6055A00) CPU. 25 AK5381VT-E2 (X5219A00) ADC (Analog to Digital Converter)DSP: ICM04 PCM1742KEG/2K (X3538A00) DAC (Digital to Analog Converter)DSP: ICM08 NOTES: (1) Schmitt-trigger input, 5V tolerant. (2) Schmitt-tri