DISASSEMBLY PROCEDURES (分解手順) ..........7 CIRCUIT BOARDS (シート基板図) ............11 INSPECTIONS (検査) ................16 BLOCK DIAGRAM (ブロックダイアグラム) ..........18 このサービスマニュアルはエコパルプ (ECF:無塩素系漂白パルプ)を使用しています。 CIRCUIT DIAGRAM (回路図) ..............19 u163 PARTS LIST 011845 200612-66150 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. 06.11 http://www.xiaoyu163.com...
Page 2
IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.
MSP7 STUDIO 3 7 63 1515 0 PANEL LAYOUT (パネルレイアウト) • Front Panel • Rear Panel (フロントパネル) (リアパネル) L 13942296513 POWERインジケーター POWER indicator POWER switch POWERスイッチ AC IN connector AC IN端子 LOW TRIM switch LOW TRIMスイッチ HIGH TRIM switch HIGH TRIMスイッチ...
MSP7 STUDIO 3 7 63 1515 0 DISASSEMBLY PROCEDURE (分解手順) ウーファー (所要時間:約1分) Woofer (Time required: About 1 minute) Remove the four (4) hexagonal socket screws marked [2 2 0 ] の6 角穴付ネジ4本を外し、ウーファーとウー ファーリングを外します。 (図 1) [220]. The woofer and woofer ring can then be removed.
Page 8
MSP7 STUDIO 3 7 63 1515 0 電源トランス、TRANSシート Power Transformer, TRANS Circuit Board (所要時間:約3分) (Time required: About 3 minutes) Remove the rear panel assembly. (See procedure 2) リアパネルAss’ yを外します。 (2項参照) Remove the three (3) screws marked [B] and screw [B]...
Page 9
MSP7 STUDIO 3 7 63 1515 0 INPUT Circuit Board: INPUTシート: 5-5-1 Remove the volume knob, hexagonal nut and washer. 5-5-1 ボリュームノブ、6角ナット、ワッシャーを外します。 (Fig. 7) (図 7) 5-5-2 Remove the five (5) screws marked [250]. 5-5-2 [250] のネジ5本を外し、モールドケースを外します。 (図 7、8)...
Page 10
MSP7 STUDIO 3 7 63 1515 0 ヒートシンク (所要時間:約6分) Heat Sink (Time required: About 6 minutes) Remove the rear panel assembly. (See procedure 2) リアパネルAss’ yを外します。 (2項参照) Remove the power transformer and the bracket trans. 電源トランスとトランス金具を外します。 (See procedure 5-2, 5-3) (5-2、5-3項参照)...
MSP7 STUDIO 3 7 63 1515 0 • AMP Circuit Board to TRANS CN202B L 13942296513 to INPUT CN102 to LED CN207 Component side (部品側) u163 http://www.xiaoyu163.com...
Page 13
MSP7 STUDIO 3 7 63 1515 0 • AMP Circuit Board L 13942296513 Pattern side (パターン側) u163 http://www.xiaoyu163.com...
MSP7 STUDIO 3 7 63 1515 0 • INPUT Circuit Board AC INLET L 13942296513 -6dBu LOW TRIM HIGH TRIM LOW CUT LEVEL INPUT Component side (部品側) u163 Pattern side (パターン側) http://www.xiaoyu163.com...
MSP7 STUDIO 3 7 63 1515 0 • TRANS Circuit Board L 13942296513 to AMP CN202 Component side (部品側) Pattern side (パターン側) • LED Circuit Board POWER to AMP CN201 Component side (部品側) Pattern side (パターン側) u163 http://www.xiaoyu163.com...
MSP7 STUDIO 3 7 63 1515 0 2. Muting operation (Muting動作) Turn ON or OFF the power switch and check the relay パワースイッチをON/OFFにした時のリレーの動作時間 operation time and the pop noise obtained at SP terminal と、SP端子間に現れるポップノイズはLF、HF共に下表の is within the range specified in the following table.
Page 18
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Adhesive (接着) to AMP D202 -15V +15V D225 +15V CN102B D221 COMPARATOR to TRANS DRIVE – GREEN CN206 Q203,204, IC201-1/2 IC201-2/2 212,213 INPUT +15V -15V JK101 -15V +15V Level POWER AMP +45V –...
Page 19
MSP7 STUDIO 3 7 6 3 1 5 1 5 0 CIRCUIT DIAGRAM 1/2 (INPUT 1/2) INPUT OP AMP OP AMP OP AMP 1 3 9 4 2 2 9 6 5 1 3 to INPUT_CN102B <P. 20/G-2> OP AMP...
Page 21
MSP7 STUDIO 3 7 63 1515 0 PARTS LIST I CONTENTS (目次) OVERALL ASSEMBLY (総組立) ............2 ELECTRICAL PARTS (電気部品) ............4 Notes: DESTINATION ABBREVIATIONS Australian model South African model British model Chinese model L 13942296513 Canadian model South-east Asia model...
Page 22
MSP7 STUDIO 3 7 63 1515 0 OVERALL ASSEMBLY (総組立) Accessories of VOLUME (VOLUME付属品) L 13942296513 u163 Non-skid pad(ゴム脚) http://www.xiaoyu163.com...
Page 23
REMARKS REF NO. RANK 総 組 立 OVERALL ASSEMBLY MSP7 STUDIO 総 組 立 Overall Assembly MSP7 STUDIO J 総 組 立 Overall Assembly MSP7 STUDIO U Overall Assembly MSP7 STUDIO H 総 組 立 Overall Assembly MSP7 STUDIO B 総...
Page 24
MSP7 STUDIO 3 7 63 1515 0 ELECTRICAL PARTS (電気部品) PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK 電 気 部 品 ELECTRICAL PARTS MSP7 STUDIO A M P シ ー ト WJ273400 Circuit Board AMP (MAIN2/5,5/5) (WJ27330,WJ27380) I...