YAMAHA 150M Diagram

SERVICE MANUAL
HAMAMATSU, JAPAN
Speaker
PA 011900
20080527-65100
Mixer

CONTENTS (目次)

SPECIFICATIONS (総合仕様)..................................................................... 3
PANEL LAYOUT (パネルレイアウト)......................................................... 4
DIMENSIONS (寸法図).............................................................................. 4
CIRCUIT BOARD LAYOUT (ユニットレイアウト).................................... 5
DISASSEMBLY PROCEDURES (分解手順)............................................... 6
IC BLOCK DIAGRAM (ICブロック図)...................................................... 15
CIRCUIT BOARDS (シート基板図)........................................................... 16
ADJUSTMENT OF AMPLIFIER (アンプユニットの調整)........................ 29
PARTS LIST BLOCK & LEVEL DIAGRAM (ブロック&レベルダイアグラム) CIRCUIT DIAGRAM (回路図)
Copyright (c) Yamaha Corporation. All rights reserved. 08.05
STAGEPAS 150M
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.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruc-
tion of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed 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 principal-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specifica­tion are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor’s Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by
IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, 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 enclosure of this product, wash your hands before handling food.
grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus).
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:
GREEN-AND-YELLOW: EARTH BLUE: NEUTRAL
BROWN: LIVE As 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 YELLOW 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 colored 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 BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed.
印の部品は、安全を維持するために重要な部品です。交換する場合は、安全のために必ず指定の部品をご使用ください。
2

SPECIFICATIONS ■ 総合仕様

STAGEPAS 150M
General Specifications
Maximum Output Power
150 W (±10 %)/4 @ 10 % THD at 1 kHz (SPEAKER)
100 W/4 @ 1 % THD at 1 kHz (SPEAKER)
Maximum Output Level
112 dB (1 m)
Frequency Response (Nomimal output level @ 1 kHz)
-3 dB, 0 dB, +1 dB @ 20 Hz–20 kHz (MUSIC/SPEECH=MUSIC) (ST SUB OUT)
-3 dB, 0 dB, +1 dB @ 80 Hz–20 kHz (MUSIC/SPEECH=SPEECH) (ST LINK OUT)
-3 dB, 0 dB, +1 dB @ 20 Hz–20 kHz, 1 W Output (MUSIC/SPEECH=MUSIC, without Speaker EQ) (SPEAKER)
Total Harmonic Distortion
0.5 % @ 20 Hz, 1 kHz, 20 kHz +14 dBu GAIN=nominal (ST SUB OUT, ST LINK OUT)
Hum & Noise
(Equivalent Input Noise, Rs=150
-112 dBu (CH1/2)
-65 dBu Residual output noise (SPEAKER)
Crosstalk (1 kHz)
-70 dB between input channels
Power Consumption
20 W
Weight
9.6 kg (Speaker + Powered Mixer)
Stereo Input Channel Equalization
±15 dB HIGH : 10 kHz shelving LOW : 100 Hz shelving
, MIC/LINE=MIC)
● 一般仕様
最大出力
150W(±10%)/4Ω@10%THDat1kHz(SPEAKER) ≧100W/4Ω@1%THDat1kHz(SPEAKER)
最大出力音圧レベル
112dB(軸上1m)
周波数特性(ノミナル出力レベル@1kHz)
-3dB、0dB、+1dB@20Hz〜20kHz (MUSIC/SPEECH=MUSIC)(STSUBOUT)
-3dB、0dB、+1dB@80Hz〜20kHz (MUSIC/SPEECH=SPEECH)(STLINKOUT)
-3dB、0dB、+1dB@20Hz〜20kHz、1W出力 (MUSIC/SPEECH=MUSIC、スピーカーEQを除く) (SPEAKER)
全高調波歪率
≦0.5%@20Hz、1kHz、20kHz+14dBuGAIN=すべてノ ミナル(STSUBOUT、STLINKOUT)
ハム&ノイズ
(入力換算ノイズ、Rs=150Ω、MIC/LINEスイッチ=MIC)
≦-112dBu(CH1/2) ≦-65dBu残留ノイズ(SPEAKER)
クロストーク(1kHz)
≦-70dB入出力間
消費電力
20W
質量
9.6kg(スピーカー+ミキサー)
入力チャンネルイコライザー特性
最大可変幅(±15dB) HIGH:10kHzシェルビングタイプ LOW :100Hzシェルビングタイプ
Speaker (300S)
Enclosure
2 way bass-reflex type, Polypropylene, Black
Crossover Frequency
4.0 kHz (LF: 12 dB/oct, HF: 12 dB/oct)
Frequency Range
55 Hz–20 kHz (-10 dB)
Speaker Unit
LF : 8" (20 cm) Cone HF : 1" (2.54 cm) Compression Driver
● スピーカー(300S)
エンクロージャー
2-wayバスレフ型、ポリプロピレン、黒
クロスオーバー周波数
4.0kHz(LF:12dB/oct、HF:12dB/oct)
再生周波数帯域
55Hz〜20kHz(-10dB)
スピーカーユニット
LF :8"(20cm)コーン HF:1"(2.54cm)コンプレッションドライバー
3
STAGEPAS 150M

PANEL LAYOUT (パネルレイアウト)

BA E
0
F
9
C
6
5 4
3
1 2 KJ8 7 D
G
I
H
1
AC IN jack
2
POWER switch
3
SPEAKER jack (for included speaker 300S only)
4
ST LINK OUT R jack
5
PHONES jack
6
ST SUB OUT L (MONO) / R jacks
7
ST SUB OUT control
8
PHONES control
9
Channel input jacks (CH 1, 2)
0
Stereo channel input jacks (CH 3/4, 5/6, 7/8)
A
MIC/LINE switch
B
Equalizer
C
REVERB switch
D
REVERB control
E
CLICK switch (for headphones/speaker)
F
LEVEL control
G
MASTER LEVEL Control
H
CLICK switch (for headphones)
I
SPEECH/MUSIC switch
J
LEVEL meter
K
POWER indicator
1
ACIN端子
2
POWERスイッチ
3
SPEAKER端子(付属のスピーカー(300S)専用)
4
STLINKOUTR端子
5
PHONES端子
6
STSUBOUTL(MONO)/R端子
7
STSUBOUTコントロール
8
PHONESコントロール
9
チャンネル入力端子(CH1、2)
0
ステレオチャンネル入力端子(CH3/4、5/6、7/8)
A
MIC/LINEスイッチ
B
EQ(イコライザー)
C
REVERBスイッチ
D
REVERBコントロール
E
CLICKスイッチ(ヘッドフォン/スピーカー用)
F
LEVELコントロール
G
MASTERLEVELコントロール
H
CLICKスイッチ(ヘッドフォン用)
I
SPEECH/MUSICスイッチ
J
LEVELメーター
K
POWERインジケーター

DIMENSIONS (寸法図)

Speaker
(スピーカー部)
275
137
4
120
2-M8x25
5.5
450
455.5
255
Mixer
(ミキサー部)
160
96.3
Unit: mm
単位:mm
5
285
290

CIRCUIT BOARD LAYOUT (ユニットレイアウト)

Front view
Speaker HF <Tweeter>
(スピーカHF<ツィーター>)
NETWORK NETWORK REVERB
Right side view
POWER
Rear view
POWER
INPUT
CONTROL
CONTROL
REVERB
SP OUT
Speaker LF <Woofer>
(スピーカLF<ウーファー>)
5
SP BOX IN
AMPAMP
STAGEPAS 150M
STAGEPAS 150M

DISASSEMBLY PROCEDURES (分解手順)

1. Front Grille Assembly (Time required: About 1 minute)
1-1 Remove the four (4) screws marked [120]. The front
grille assembly can then be removed. (Fig. 1)
2. Speaker LF (Woofer) (Time required: About 2 minutes)
2-1 Remove the front grille assembly. (See procedure 1) 2-2 Remove the four (4) screws marked [100]. The
speaker LF (woofer) can then be removed. (Fig. 1)
2-3 Remove the wire LF (red/black) attached to the speaker
LF (woofer). (Photo. 1)

3. Front Cabinet Unit, Rear Cabinet Unit (Time required: About 3 minutes)

3-1 Remove the front grille assembly. (See procedure 1) 3-2 Remove the five (5) screws marked [80A] and four (4)
screws marked [80B]. The front cabinet unit and rear cabinet un t can then be separated. (Fig. 1, 2)
3-3 Remove the wire LF (red/black) attached to the speaker
LF (woofer). (Photo. 1)
3-4 Remove the wire HF (yellow/blue) attached to the
speaker HF (tweeter). (Photo. 2)
* Take care not to open the front cabinet unit and
rear cabinet unit too wide or the speaker LF (woofer) terminal and speaker HF (tweeter) ter­minal may be damaged.
1. フロントグリルAssy(所要時間:約1分)
1-1 [120]のネジ4本を外して、フロントグリルAssyを外し
ます。(図1)

2. スピーカLF(ウーファー)(所要時間:約2分)

2-1 フロントグリルAssyを外します。(1項参照) 2-2 [100]のネジ4本を外して、スピーカLF(ウーファー)を
外します。(図1)
2-3 スピーカLF(ウーファー)に取り付けられている束線LF
(赤/黒)を外します。(写真1)

3. フロントキャビネット部、リアキャビネット部 (所要時間:約3分)

3-1 フロントグリルAssyを外します。(1項参照) 3-2 [80A]のネジ5本と[80B]のネジ4本を外して、フロント
キャビネット部、リアキャビネット部を別けます。(図 1、2)
3-3 スピーカLF(ウーファー)に取り付けられている束線LF
(赤/黒)を外します。(写真1)
3-4 スピーカHF(ツィーター)に取り付けられている束線
HF(黄/青)を外します。(写真2)
※ フロントキャビネット部とリアキャビネット部を開
きすぎて、スピーカLF(ウーファー)端子、スピー カHF(ツィーター)端子を傷めないように注意して ください。
<Front view>
(フロントキャビネット部)
[80A]: BINDHEADTAPPINGSCREW-A5.0x35NI-BL(AAX61640)
[100]: BINDHEADTAPPINGSCREW-B4.0x18NI-BL(AAX61660)
[120]: BINDHEADTAPPINGSCREW-B4.0x10NI-BL(AAX61680)
Front cabinet unit
[120]
[80A]
[100]

Front grille assembly

(フロントグリルAss'y)
[80A]
[100]
[120]
A タイト+ BIND
B タイト+ BIND
B タイト+ BIND
[120] [80A]
[100]

Speaker LF (Woofer)

(スピーカLF(ウーファー))
[80A]
[100]
[120]
[80A]
Fig. 1(図 1)
<Rear view>
Rear cabinet unit
(リアキャビネット部)
[80B]
[80B]
[80B]: BINDHEADTAPPINGSCREW-A5.0x35NI-BL(AAX61640)
A タイト+ BIND
[80B]
[80B]
Fig. 2(図 2)
6
STAGEPAS 150M
(スピーカLF(ウーファー))
Speaker LF (Woofer)
(束線LF(赤))
Wire LF (Red)
Wire LF (Black)
(束線LF(黒))
4. Speaker HF (Tweeter) (Time required: About 4 minutes)
4-1 Remove the front grille assembly. (See procedure 1) 4-2 Separate the front cabinet unit and rear cabinet unit.
(See procedure 3)
4-3 Remove the two (2) screws marked [70]. The speaker
HF (tweeter) can then be removed from the front cabi­net unit. (Fig. 3)

5. Network Assembly, NETWORK Circuit Board (Time required: About 7 minutes)

5-1 Remove the front grille assembly. (See procedure 1) 5-2 Separate the front cabinet unit and rear cabinet unit.
(See procedure 3)
5-3 Remove the four (4) screws marked [13]. The network
assembly can then be removed from the rear cabinet unit. (Fig. 4)
5-4 Remove the four (4) screws marked [N40]. The NET-
WORK circuit board and the network holders C and D can then be separated. (Fig. 4)
[70]

Speaker HF (Tweeter)

(スピーカHF(ツィーター))
Speaker HF (Tweeter)
(スピーカHF(ツィーター))
Wire HF (Blue)
(束線HF(青))
Wire HF (Yellow)
(束線HF(黄))
Photo 2(写真 2)Photo 1(写真 1)

4. スピーカHF(ツィーター)(所要時間:約4分)

4-1 フロントグリルAssyを外します。(1項参照) 4-2 フロントキャビネット部、リアキャビネット部を別け
ます。(3項参照)
4-3 [70]のネジ2本を外して、フロントキャビネット部から
スピーカHF(ツィーター)を外します。(図3)
5. ネットワークAssy、NETWORKシート (所要時間:約7分)
5-1 フロントグリルAssyを外します。(1項参照) 5-2 フロントキャビネット部、リアキャビネット部を別け
ます。(3項参照)
5-3 [13]のネジ4本を外して、リアキャビネット部からネッ
トワークAssyを外します。(図4)
5-4 [N40]のネジ4本を外して、NETWORKシートとネット
ワーク固定金具C、Dを別けます。(図4)
Network holder D
(ネットワーク固定金具D)
NETWORK
[N40] x 4
Network holder C
(ネットワーク固定金具C)
[13] x 4
Front cabinet unit
(フロントキャビネット部)
[70]: BINDHEADTAPPINGSCREW-B4.0x20NI-BL(AAX61630)
B タイト+ BIND
Fig. 3(図3)
Network assembly
(ネットワークAss'y)
Rear cabinet unit
(リアキャビネット部)
[13]: BINDHEADTAPPINGSCREW-B3.0x10NI-BL(AAX61710)
B タイト+ BIND
[N40]: PANHEADTAPPINGSCREW-B3.0x8CR3(AAX61700)Bタ
イト+ PAN
Fig. 4(図 4)
7
STAGEPAS 150M
6. Mixer Assembly (Time required: About 1 minute)
6-1 Rotate the two (2) straight slots on the fastener heads
with a coin driver or minus driver until each straight slot is in alinment with the OPEN position. The mixer assembly can then be removed. (Fig. 5)
Coin driver or minus driver
(コインドライバーまたは
マイナスドライバー)
6. ミキサーAssy(所要時間:約1分)
6-1 コインドライバーまたはマイナスドライバーで、ファ
スナーヘッドのマイナス形溝2箇所をOPENの位置まで 回して、ミキサーAssyを外します。(図5)
Fastner head
(ファスナーヘッド)
Panel side
(パネル側)
Rear case side
(リアケース側)

Mixer assembly

(ミキサーAss'y)
Fig. 5(図 5)

7. SP BOX IN Circuit Board (Time required: About 2 minutes)

7-1 Remove the mixer assembly. (See procedure 6) 7-2 Remove the three (3) screws marked [16]. The mount
bracket assembly can then be removed together with the SP BOX IN circuit board. (Fig. 6)
7-3 Remove the hexagonal nut marked [140a]. The SP BOX
IN circuit board can then be removed from the mount bracket assembly. (Fig. 6)
[140a]
[16]: BINDHEADTAPPINGSCREW-B4.0x10NI-BL(AAX61680)
B タイト+ BIND
[140a]: HEXAGONALNUTM15.0BL(--)六角ナット
7. SPBOXINシート(所要時間:約2分)
7-1 ミキサーAssyを外します。(6項参照) 7-2 [16]のネジ3本を外して、SPBOXINシートと共にマウ
ントブラケットAssyを外します。(図6)
7-3 [140a]の六角ナット1個を外して、マウントブラケット
AssyからSPBOXINシートを外します。(図6)
[16] x 3
Mount bracket assembly
(マウントブラケットAss'y)
SP BOX IN
Fig.6(図 6)
8
STAGEPAS 150M
8. Mixer Assembly (Panel Assembly, Rear Case Assembly) (Time required: About 3 minutes)
8-1 Remove the mixer assembly. (See procedure 6) 8-2 Remove the eight (8) screws marked [340], and sepa-
rate the panel assembly and rear case assembly from the mixer assembly. (Fig. 7) (See the cautions below:)
<Cautions on removing panel assembly and con­nection> * When removing the panel assembly, take care
not to damage the three connector assemblies (connector assembly A, B, C). (Fig. 7)
* When assembling the panel assembly, connect
the three connector assemblies (connector as­sembly A, B, C) in alphabetical order (A -> B -> C). (Fig. 7)
Panel assembly
(パネルAss'y、パネル側)
CONTROL circuit board - CN24
(CONTROLシートのCN24)
Connector assembly C
(束線C)
8. ミキサーAssy(パネル側、リアケース側) (所要時間:約3分)
8-1 ミキサーAssyを外します。(6項参照) 8-2 [340]のネジ8本を外して、ミキサーAssyからパネル側
とリアケース側を別けます。(図7)(下記注意事項参照)
〈パネル側の取り外し/接続時の注意〉
※ パネル側を外す時に、3本の束線(束線A、B、C)に
注意してください。(図7)
※ パネル側を取り付ける際は、3本の束線(束線A、
B、C)をA→B→Cの順に接続します。(図7)
[340] x 8
Connector assembly A
(束線A)
POWER circuit board - CN9
POWERシートのCN9)
Connector assembly B
(束線B)
POWER circuit board - CN801
POWERシートのCN801)
[340]: HEXAGONALTAPPINGSCREW-B3x8NI-BL(WP927800)
[370]
[360]
Rear case assembly
(リアケースAss'y、リアケース側)
B タイト六角ネジ
Fig. 7(図 7)
9
STAGEPAS 150M
[Disassembly of Panel Assembly (Mixer Assembly)]
* Before removing the following parts (in procedure 9 to
procedure 13), remove the mixer assembly (see pro­cedure 6), rear case assembly (see procedure 8).
9. INPUT Circuit Board (Time required: About 6 minutes)
9-1 Remove the twelve (12) hexagonal nuts marked [190a],
twelve (12) flat washers marked [190b] and five (5) screws marked [200] from the panel printing side. (Fig. 8)
9-2 Remove the INPUT circuit board from the connectors
CN21 and CN26 of the CONTROL circuit board. (Fig. 8)
* The two (2) push buttons marked [170A] and two
(2) push spacers marked [180] are not parts of the INPUT circuit board. When replacing the IN­PUT circuit board, be sure to remove these parts and attach them to the new INPUT circuit board. (Fig. 9)
<Top view> <Bottom view>
[190a] x 12
[190b] x 12
[200] x 5
CN25
《パネル側(ミキサーAssy)の分解》
※ 以下の各部品(9項〜13項)を取り外す前に、ミキサーAss
y(6項参照)、リアケース側(8項参照)を外しておきます。
9. INPUTシート(所要時間:約6分)
9-1 パネル印刷面から[190a]の六角ナット12個、[190b]の
ワッシャー12個、[200]のネジ5本を外します。(図8)
9-2 CONTROLシートのCN21、CN26のコネクターからIN-
PUTシートを外します。(図8)
※[170A]のプッシュボタン2個と[180]のプッシュス
ペーサ2個は、INPUTシートの構成部品ではありま せん。INPUTシートを交換する際には必ずこれらを 取り外し、新しいINPUTシートに取り付けてくださ い。(図9)
INPUT
CN22
CN21
CN26
Panel assembly
(パネルAss'y)
[190a]: HEXAGONALNUTM11.0(--)六角ナット [190b]: FLATWASHERM9.2(--)ワッシャー [200]: BINDHEADTAPPINGSCREW-B3.0x10NI-BL(AAX61710)
B タイト+ BIND
CONTROL
Fig. 8(図 8)
REVERB
[170A] Push button x 2
(プッシュボタン)
[180] Push spacer x 2
(プッシュスペーサ)
INPUT
Fig. 9(図 9)
10
STAGEPAS 150M
10. REVERB Circuit Board (Time required: About 4 minutes)
10-1 Remove the REVERB circuit board from the connec-
tors CN27 and CN31 of the CONTROL circuit board. (Fig. 10)
<Bottom view>
INPUT
CN27
Panel assembly
(パネルAss'y)
CONTROL
Fig. 10(図 10)
10. REVERBシート(所要時間:約4分)
10-1 CONTROLシートのCN27とCN31のコネクターから、
REVERBシートを外します。(図10)
REVERB
CN28
CN31
CN32
to CONTROL circuit board - CN31
(CONTROLシートのCN31へ)
to CONTROL circuit board - CN27
(CONTROLシートのCN27へ)
11. SP OUT Circuit Board (Time required: About 4 minutes)
11-1 Remove the hexagonal nut marked [220a] from the
panel printing side. The SP OUT circuit board can then be removed. (Fig. 11)
Panel assembly
(パネルAss'y)
SP OUT
[220a]: HEXAGONALNUTM15.0BL(--)六角ナット
Fig. 11(図 11)
11. SPOUTシート(所要時間:約4分)
11-1 パネル印刷面から[220a]の六角ナット1個を外し、SP
OUTシートを外します。(図11)
[220a]
11
STAGEPAS 150M
12. CONROL Circuit Board (Time required: About 10 minutes)
12-1 Remove the INPUT circuit board. (See procedure 9) 12-2 Remove the REVERB circuit board. (See procedure 10) 12-3 Remove the five (5) volume knobs (white) marked [130]
and the volume knob (red) marked [140] from the panel printing side. (Fig. 12)
12-4 Remove the five (5) screws marked [160]. The CON-
TROL circuit board can then be removed. (Fig. 12)
* The following parts are not parts of the CON-
TROL circuit board. When replacing the CON­TROL circuit board, be sure to remove these parts and attach them to the new CONTROL cir­cuit board. (Fig. 13)
• [90]: Push buttons 3 pcs.
• [100]: Volume knob (S) (white) 1 pc.
• [110]: Volume knobs (S) (green) 10 pcs.
• [120]: Volume knob (S) (blue) 2 pcs.
• [170B]: Push buttons 2 pcs.
<Top view> <Bottom view>
[160] x 5
[130] Volume knob (White) x 5
(ノブVR(白))
12. CONTROLシート(所要時間:約10分)
12-1 INPUTシートを外します。(9項参照) 12-2 REVERBシートを外します。(10項参照) 12-3 パネル印刷面から[130]のノブVR(白)5個、[140]のノ
ブVR(赤)1個を外します。(図12)
12-4 [160]のネジ5本を外して、CONTROLシートを外しま
す。(図12)
※ 以下の各部品は、CONTROLシートの構成部品では
ありません。CONTROLシートを交換する際には必 ずこれらを取り外し、新しいCONTROLシートに取 り付けてください。(図13) ・[90]: プッシュボタン 3個 ・[100]: ノブVR(S)(白) 1個 ・[110]: ノブVR(S)(緑) 10個 ・[120]: ノブVR(S)(青) 2個 ・[170B]: プッシュボタン 2個
CONTROL
12
[140] Volume knob (Red)
(ノブVR(赤))
[170B] Push button x 2
(プッシュボタン)
[90] Push button x 3
(プッシュボタン)
Panel assembly
(パネルAss'y)
[100] Volume knob (S) (White)
(ノブVR(S)(白))
[160]: BINDHEADSCREW3.0x8CR3(AAX61910)小ネジ+ BIND
Fig. 12(図 12)
[120] Volume knob (S) (Blue) x 2
(ノブVR(S)(青))
[110] Volume knob (S) (Green) x 10
(ノブVR(S)(緑))
CONTROL
Fig. 13(図 13)
STAGEPAS 150M
AC inlet
ACインレット)
Claw (ツメ)
Claw
(ツメ)
Panel (パネル)
13. Power Switch, AC Inlet (Time required: About 5 minutes)
13-1 Remove the two (2) connector assemblies (connector
assembly (1P) and connector assembly (2P)) and earth wire soldered to the power switch and AC inlet. (Fig. 14)
13-2 Remove the power switch by pressing its claws. (Fig. 15) 13-3 Remove the AC inlet by pressing its claws. (Fig. 16)
Soldering (半田付け)
Connector assembly (1P) (brown)
(束線 1P(茶))
Earth wire (green)
(アース線(緑))
AC inlet
ACインレット)
Fig.14(図 14)
13. 電源スイッチ、ACインレット(所要時間:約5分)
13-1 電源スイッチとACインレットに半田付けされている束
線2本(束線1P、束線2P)とアース線を外します。(図14) 13-2 電源スイッチのツメを押して外します。(図15) 13-3 ACインレットのツメを押して外します。(図16)
(blue)
(青)
(brown)
(茶)
Connector assembly (2P)
(束線2P)
Soldering (半田付け)
Power switch
(電源スイッチ)
Panel (パネル)
Panel (パネル)
Claw (ツメ)
Power switch (電源スイッチ)
Claw (ツメ)
Fig. 15(図 15) Fig. 16(図 16)
13
STAGEPAS 150M
[Disassembly of Rear Case Assembly (Mixer Assembly)]
* Before removing the following parts (in procedure 14),
remove the mixer assembly (see procedure 6), panel assembly (see procedure 8).
14. Power Amplifier Unit, POWER Circuit Board (Time required: About 6 minutes)
14-1 Remove the three (3) screws marked [270]. The power
amplifier unit can then be removed. (Fig. 17)
14-2 Remove the two (2) screws marked [320]. The insula-
tor C marked [300] can then be removed. (Fig. 18)
14-3 Remove the seven (7) screws marked [260]. The
POWER circuit board can then be removed. (Fig. 17) * The cushion A marked [330] is not a part of the
POWER circuit board. When replacing the POWER circuit board, be sure to attach the cushion A to the new POWER circuit board. (Fig. 17)
POWER
[260] x 7
[270] x 3
[330] Cushion A
(クッションA)
《リアケース側(ミキサーAssy)の分解》
※ 以下の各部品(14項)を取り外す前に、ミキサーAssy(6項
参照)、パネル側(8項参照)を外しておきます。
14. パワーアンプユニット、POWERシート (所要時間:約6分)
14-1 [270]のネジ3本を外して、パワーアンプユニットを外
します。(図17)
14-2 [320]のネジ2本を外して、[300]の絶縁板Cを外しま
す。(図18)
14-3 [260]のネジ7本を外して、POWERシートを外しま
す。(図17) ※[330]のクッションAは、POWERシートの構成部品
ではありません。POWERシートを交換する際に は、必ずクッションAを新しいPOWERシートに取 り付けてください。(図17)
Power amplifier unit
(パワーアンプユニット)
AMP
POWER
Rear case assembly
(リアケースAss'y、リアケース側)
[260]: BINDHEADTAPPINGSCREW-B3.0x8CR3(AAX61980)B
タイト+ BIND
[270]: BINDHEADTAPPINGSCREW-B3.0x10NI-BL(AAX61710)
B タイト+ BIND
Fig.17(図 17)
[320]: BINDHEADTAPPINGSCREW-B3.0x8CR3(AAX61980)B
CN5
CN4
[320] x 2
[300]
Rear case assembly
(リアケースAss'y、リアケース側)
タイト+ BIND
14
Fig.18(図 18)

IC BLOCK DIAGRAM (ICブロック図)

M65850FP (AAX62760) Digital Echo REVERB: IC602
OP2 OUT
CC2
7 12
MAIN CONTROL
A / D
OP1 IN
OP2 IN
D / A
DO1
DO0D1
LPF1 IN
LPF1 OUT
OP1 OUT
OP1 IN
CC1
CC2
GND
1
NC
2
3
4
5
6
7
7
8
16
15
14
13
12
11
8
10
9
NC
Vcc
CLOCK
REF
OP2 IN
OP2 OUT
LPF2 IN
LPF2 OUT
LB1407-E LF (AAX68710) AC/DC Voltage Level Meter CONTROL: IC604
CLOCK
14
OSCILLATOR
REF
13
1/2 Vcc
16
NC
NC
AUTO
RESET
1
LPF1
2 3 4 5 6
LPF1 IN
LPF1 OUT
CLOCK
RESET
OP1 OUT
CC1
STAGEPAS 150M
LPF2 IN
LPF2 OUT
10
11
MO
MI
GND
9
LPF2
20Kbit SRAM
8
15
Vcc
Vref
2
1
OUT
3
--
+
7
6
GND
Vcc
Rch
Vref
IN
IN
OUT
GND
1
2
3
+
4
--
5
6
7
7
14
D7
13
D6
12
D5
11
D4
+
4
10
9
8
8
IN
D3
-­5
IN
D2
D1
NJM2068M-D TE1 (AAX62750) Dual Operational Amplifier INPUT: IC101, 301, 501, 701 CONTROL: IC102, 103, 104, 105, 106, 107, 108, 110, 112,
202, 302, 402, 502, 503, 702, 703
REVERB: IC109, 603
+-
+V
+DC Voltage
8
Supply
Output B
7
Inverting
6
Input B Non-Inverting
5
Input B
Output A
Inverting
Input A
Non-Inverting
Input A
-DC Voltage Supply
1
2
3
4-V
+-
COM 7
5.83 k
12, 11, 10, 9
D7
14
R7
D6
13
R6
4.12 k
-­COM
6
+
D1Vcc Rch
8
R1
1 k
-­COM
1
+
NJM4556AM TE1 (X9836A00) Dual Operational Amplifier CONTROL: IC111
+-
+V
+DC Voltage
8
Supply
Output B
7
Inverting
6
Input B Non-Inverting
5
Input B
Output A
Inverting
Input A
Non-Inverting
Input A
-DC Voltage Supply
1
2
3
4-V
+-
15
STAGEPAS 150M

CIRCUIT BOARDS (シート基板図)

CONTENTS (目次)

AMP Circuit Board (6479-10) ............................................. 17
CONTROL Circuit Board (6494-30) ............................................. 18
INPUT Circuit Board (6494-30) ............................................. 20
NETWORK Circuit Board (5257-10) ............................................. 21
POWER Circuit Board (8151-40) ............................................. 22
REVERB Circuit Board (6494-30) ............................................. 16
SP BOX IN Circuit Board (8151-40) ............................................. 26
SP-OUT Circuit Board (8151-40) ............................................. 26
Note: See parts list for details of circuit board component parts.
注:シートの部品詳細はパーツリストをご参照ください。
• REVERB Circuit Board
to CONTROL
CN31
to CONTROL
CN27
Pattern side (パターン側)Component side (部品側)
16
477547
• AMP Circuit Board
STAGEPAS 150M
to POWER
CN4
Component side (部品側)
to POWER
CN5
432584
Pattern side (パターン側)
17
STAGEPAS 150M
• CONTROL Circuit Board
to INPUT
CN25
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
LEVELLEVELLEVEL
LEVEL
CH7/8
CLICK
to REVERB CN28
18
to INPUT
CN22
HIGH
OUT
ST SUB
PHONES
+6
LIMITER
+3
REVERB
CLICK
0
LOW
-6
-20
REVERB REVERB
POWER
MUSIC
SPEECH
LEVEL
LEVEL
to POWER
CN19
to REVERB CN32
MASTER CH1 CH2 CH3/4 CH5/6
Component side (部品側)
477547
STAGEPAS 150M
477547
Pattern side (パターン側)
19
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