CIRCUIT BOARD LAYOUT(ユニットレイアウト) ....5 DISASSEMBLY PROCEDURE(分解手順) ......6 IC BLOCK DIAGRAM(ICブロック図) ......... 15 CIRCUIT BOARDS(シート基板図) ........16 INSPECTIONS(検査) ............23 TROUBLE SHOOTING(トラブルシューティング) .... 26 PARTS LIST BLOCK DIAGRAM(ブロックダイアグラム) CIRCUIT DIAGRAM(回路図) 011775 20050321-86100 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF-K9611 ’05.04...
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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.
STAGEPAS 300 PANEL LAYOUT(パネルレイアウト) q [POWER] switch ([POWER]スイッチ) w [AC IN] jack ([AC IN]端子) e [SPEAKER L/R] jacks ([SPEAKER L/R]端子(付属のスピーカー用)) r [REC OUT L/R] jacks ([REC OUT L/R]端子) t [MONITOR OUT L(MONO)/R] jacks ([MONITOR OUT L(MONO)/R]端子) y Channel input jacks (CH 1 to 4) (チャンネル入力端子...
STAGEPAS 300 (分解手順) DISASSEMBLY PROCEDURE フロントグリル Ass'y Front Grille Assembly (所要時間:約 1 分) (Time required: About 1 minute) [120A]のネジ 4 本を外して、フロントグリル Ass'y Remove the four (4) screws marked [120A]. The を外します。 (図 1) front grille assembly can then be removed. (Fig.1) スピーカ...
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STAGEPAS 300 ミキサー Ass'y、カバーモールド Ass'y Mixer Assembly, Cover Mold Assembly (所要時間:約 1 分) (Time required: About 1 minute) Rotate the two (2) straight slots on the fastener コインドライバーまたはマイナスドライバーで、 heads with a coin driver or minus driver until each ファスナーヘッドのマイナス形溝 2 箇所を OPEN straight slot is in alignment with the OPEN position.
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STAGEPAS 300 ミキサーAss'y (パネル側、 リアケース側) Mixer Assembly (Panel Assembly, Rear Case Assembly) (所要時間:約 3 分) (Time required: About 3 minutes) ミキサー Ass'y を外します。 (6 項参照) Remove the mixer assembly. (See procedure 6) [340]のネジ 8 本を外して、 ミキサーAss'y からパネ Remove the eight (8) screws marked [340], and ル側とリアケース側を別けます。...
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STAGEPAS 300 VR シート VR Circuit Board (所要時間:約 10 分) (Time required: About 10 minutes) 10-1 INPUT シートを外します。 (9 項参照) 10-1 Remove the INPUT circuit board. (See procedure 9) 10-2 パネル印刷面から[130]のノブ VR(白)6 個、 [140] 10-2 Remove the six (6) volume knobs (white) marked のノブ...
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STAGEPAS 300 [120B] Volume knob (S) (Blue) [100B] Volume knob (S) (White) (ノブVR(S)(青)) (ノブVR(S)(白)) [110A] Volume knob (S) (Green) X 12 (ノブVR(S)(緑)) [90] Push button X 5 (プッシュボタン) Fig.11 ( 図 11) FILTER Circuit Board FILTER シート (所要時間:約 4 分)...
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STAGEPAS 300 [260] X 7 [270A] POWER [270B] Power amplifier unit B (パワーアンプユニットB) Power amplifier unit A (パワーアンプユニットA) [CN5] [CN6] [CN4] [CN7] Rear case assembly (リアケースAss'y、リアケース側) [260]: Bind Head Tapping Screw-B ( +バインド B タイト ) 3.0X8 CR3 (AAX61980) [270]: Bind Head Tapping Screw-B (+バインドBタイト) 3.0X10 NI-BL (AAX61710) Fig.17 ( 図...
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STAGEPAS 300 ファン(小) Fan (Small) (所要時間:約 7 分) (Time required: About 7 minutes) 15-1 Remove the POWER circuit board. 15-1 POWER シートを外します。 (14 項参照) (See procedure 14) 15-2 ファン(小)と共にシールドケースを外します。 15-2 Remove the shield case together with the fan (図 20)...
STAGEPAS 300 (ICブロック図) IC BLOCK DIAGRAM M65850FP (AAX62760) Digital Echo FILTER: IC602 CLOCK OP2 IN OP2 OUT LPF2 IN LPF2 OUT LPF2 OSCILLATOR D / A LPF1 IN 1/2 Vcc LPF1 OUT CLOCK CLOCK OP1 OUT AUTO MAIN CONTROL RESET...
STAGEPAS 300 (検査) INSPECTIONS Test Conditions(試験条件) Measuring Voitage(測定電圧): AC 100 V 50/60 Hz (J) AC 120 V 60 Hz (U, C, V) AC 240 V 50 Hz (A) AC 230 V 50 Hz (B, H, W) AC 220 V 60 Hz (K) AC 220 V 50 Hz (O) 6 Ω...
STAGEPAS 300 (トラブルシューティング) TROUBLE SHOOTING ∗ Points marked by “ ” to “ ” in the figure of circuit board are the points to be checked as indicated by the same marks in the flowchart on the next page or after.
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STAGEPAS 300 • Trouble Shooting (POWER circuit board) START [ No Load ] F1 (Fuse) < Fuse :Primary > OPEN ? CN4: 7 pin < Power Supply :+VB > +VB = +38 V (DC) CN4: 5 pin < Power Supply :-VB >...
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STAGEPAS 300 < Power LED > Connect the circuit boards(INPUT,FILTER,VR)and two fans. < Signal Path > INPUTシート、FILTERシート、VRシート及びFANを接続 < FAN > Q822:ON Power LED = ON Remove the Power Amplifier Unit. パワーアンプユニットを外す CN9: 2 pin(4 pin) Power LED = ON OUTPUT OK Q808:OFF Replace the Power Amplifier Unit.
PARTS LIST CONTENTS (目次) OVERALL ASSEMBLY (総組立)..........2 MIXER ASSEMBLY (ミキサーAss’ y) ........5 REAR CASE ASSEMBLY (リアケースAss’ y) ......7 ELECTRICAL PARTS (電気部品) ......... 8-20 Notes : DESTINATION ABBREVIATIONS A : Australian model M : South African model B : British model O : Chinese model C : Canadian model Q : South-east Asia model...
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STAGEPAS 300 CIRCUIT DIAGRAM 1/5 (POWER (1/2) ) STAGEPAS 300 REGULATOR +15V POWER (1/2) REGULATOR +5V to Page 2/5: A-2 Power Transformer to Page 2/5: A-2 Switching Controller to Page 2/5: B-2 Primary Secondary to Page 2/5: B-2 to Page 2/5: G-3...
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STAGEPAS 300 CIRCUIT DIAGRAM 2/5 (JACK1A, JACK1B, JACK2, NETWORK1, NETWORK2, POWER (2/2) ) STAGEPAS 300 Power Amplifier Unit Power Amplifier Unit 1101 1100 1101 1100 POWER (2/2) from Page 1/5: H-3 from Page 1/5: H-1 from Page 1/5: H-2 from Page 1/5: H-1...
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STAGEPAS 300 CIRCUIT DIAGRAM 3/5 (INPUT) STAGEPAS 300 INPUT LINE LINE OP AMP NJM2068M CH5/6 NJM2068M OP AMP LINE LINE OP AMP NJM2068M CH7/8 NJM2068M OP AMP LINE LINE NJM2068M OP AMP POWERED SP L (MONO) +15V LINE LINE POWERED SP R ZA1E5A00305 –15V...
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STAGEPAS 300 CIRCUIT DIAGRAM 4/5 (VR) STAGEPAS 300 OP AMP NJM2068M OP AMP to FILTER-CN28 NJM2068M REVERB LEVEL LEVEL (Page 5/5: E-5) HIGH HIGH CH 5/6 OP AMP NJM2068M OP AMP NJM2068M REVERB LEVEL REVERB (CH1~4) HIGH LEVEL HIGH OP AMP...
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STAGEPAS 300 CIRCUIT DIAGRAM 5/5 (FILTER) STAGEPAS 300 FILTER OP AMP NJM2068M NJM2068M OP AMP NJM2068M OP AMP OP AMP NJM2068M DIGITAL ECHO OP AMP NJM2068M OP AMP OP AMP NJM2068M NJM2068M NJM2068M OP AMP ZA1E5A00505 to VR-CN31(Page 4/5: A-5) to VR-CN27(Page 4/5: H-1) Note: See parts list for details of circuit board component parts.