PARTS LIST
BLOCK DIAGRAM(ブロックダイアグラム)
CIRCUIT DIAGRAM(回路図)
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF & ’07.06
MW8CX/MW10C
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,
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certification,
The data provided is belived 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
destruction 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.
recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.
by grounding 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 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 cause
cancer and/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.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured makings identifying the terminals in
your plug proceed as follows:
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.
Making sure that neither core is connected to the earth terminal of the three pin plug.
• This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd. (2 wires)
WARNING
Components having special characteristics are marked and must be replaced with parts having specifi cation equal to those
originally installed.
The following applies to both the MW8CX and MW10C. In cases where different features need to be described for each
model, the MW8CX feature will be described fi rst, followed by the MW10C feature in brackets: MW8CX (MW10C).
q MIC Input Jacks (CHs 1 to 5/6)
w LINE Input Jacks (CHs 1, 2)
e LINE Input Jacks (CHs 3/4 to 7/8 (CHs 3/4 to 9/10))
r LINE Input Jacks (CH 7/8, (CHs 7/8, 9/10))
t INSERT Jacks (CHs 1, 2)
y GAIN Control
u
Switch (High Pass Filter)
80
i COMP Control
o PEAK Indicator
!0 Equalizer (HIGH, MID, and LOW)
!1 EFFECT (AUX) Control
!2 PAN Control (CHs 1, 2)
PAN/BAL Control (CHs 3/4, 5/6)
BAL Control (CH 7/8 (CHs 7/8, 9/10))
!3 Level Control
2
*
-
2
-
q MIC 入力端子 (CH1 〜 5/6)
w LINE 入力端子 (CH1、2)
e LINE 入力端子 (CH3/4 〜 7/8、(CH3/4 〜 9/10))
r LINE 入力端子 (CH7/8(CH7/8、9/10))
t INSERT 端子 (CH1、2)
y GAIN コントロール
u
( ハイパスフィルター ) スイッチ
80
i COMP コントロール
o PEAK インジケーター
!0 EQ( イコライザー :HIGH、MID、LOW)
!1 EFFECT(AUX) コントロール
!2 PAN コントロール (CH1、2)
PAN/BALコントロール (CH3/4、5/6)
BAL コントロール (CH7/8(CH7/8、9/10))
!3 LEVEL コントロール
10
MW8CX
Master Control Section (マスターコントロール部)
/4
1
)
6
0
2
MW8CX/MW10C
q 2TR IN Jacks
w REC OUT (L, R) Jacks
e RETURN L (MONO), R Jacks
r SEND EFFECT (AUX) Jack
t STEREO OUT (L, R) Jacks
y MONITOR (L, R) Jacks
u PHONES Jack
i PHANTOM +48 V Switch
o RETURN Control
!0 POWER Indicator
!1 Level Meter
!2 2TR IN/USB
• 2TR IN/USB Switch
• 2TR IN/USB control
!3 MONITOR/PHONES Control
!4 STEREO Master Control
*
-
q 2TRIN 端子
w RECOUT(L、R) 端子
e RETURNL(MONO)、R 端子
r EFFECT(AUX)SEND 端子
t STEREOOUT(L、R) 端子
y MONITOR(L、R) 端子
u PHONES 端子
i PHANTOM+48V スイッチ
o RETURN コントロール
!0 POWER インジケーター
!1 レベルメーター
!2 2TRIN/USB
•出力先切り替えスイッチ
•2TRIN/USB コントロール
!3 MONITOR/PHONESコントロール
!4 STEREO マスターコントロール
MW8CX
11
MW8CX/MW10C
Digital Effect
(デジタルエフェクト部)
* Only the MW8CX has digital effects.
(この機能は MW8CX のみに内蔵されています。)
/
Rear Input/Output Section
(リアパネル部)
/4)
Digital Effect
q FOOT SWITCH Jack
w PROGRAM Dial
e PARAMETER Control
r ON Switch
t EFFECT RTN Control
4
)
0
1
MW8CX
Rear Input/Output Section
q POWER Switch
w AC ADAPTOR IN Connector
e USB Connector
デジタルエフェクト部
q FOOTSWITCH 端子
w PROGRAM 選択ダイアル
e PARAMETER コントロール
r ON スイッチ
t EFFECTRTN コントロール
リアパネル部
q 電源スイッチ
w ACADAPTORIN 端子
e USB 端子
12
Jack List
Input and Output JacksPolaritiesConfigurations
MW8CX/MW10C
OUTPUTINPUT
MIC INPUT
Pin 1: Ground
Pin 2: Hot (+)
Pin 3: Cold (-)
XLR Connector
LINE INPUT (stereo channels)
STEREO OUT, MONITOR, EFFECT (AUX)*
INSERT
Tip: Hot (+)
Ring: Cold (-)
Sleeve: Ground
Tip: Output
Ring: Input
Ring
Sleeve: Ground
PHONES
RETURN
LINE INPUT (monaural channels)
Tip: L
Ring: R
Sleeve: Ground
Tip: Hot
Sleeve: Ground
TipSleeve
TRS Phone Connector
TipSleeve
Phone Connector
* These jacks will also accept connection to monaural phone connectors. If you use monaural plugs, the connection will be unbalanced.
端子一覧
入出力端子名端子の極性端子の形状
MIC INPUT
LINE INPUT(モノラルチャンネル)
STEREO OUT、MONITOR、EFFECT (AUX)*
INSERT
PHONES
RETURN
LINE INPUT (ステレオチャンネル)
* これらの端子にフォーン端子を使用することもできます。その場合は、アンバランスになります。
ピン1: グラウンド
ピン2: ホット (+)
ピン3: コールド (–)
チップ: ホット(+)
リング: コールド(–)
スリーブ: グラウンド
チップ: Output
リング: Input
スリーブ: グラウンド
チップ: L
リング: R
スリーブ: グラウンド
チップ: ホット
スリーブ: グラウンド
OUTPUTINPUT
XLR 端子
リング
チップスリーブ
TRSフォーン端子
チップスリーブ
フォーン端子
13
MW8CX/MW10C
GENERAL SCHEMATIC DIAGRAM(総組立配線図)
1. Processing Method of AC Connector Assembly (WH54770)
(a). Bundle three wires and fi x them with the cord holder
(location: 300) at a position 20 mm away from the
component side of the circuit board.
(b). Incline the bundled wires in the direction of the
POWER switch.
Handle the wires carefully so that too much stress is
not applied to the connector terminals when inclining
the wires.
2-4 Fix the USBMW10C connector assembly to the ra-
diator plate with the cord holder (location: 300).
Cut off the excess portion.
(余った部分をカットします。)
Connect the USBMW10C connector assembly
to the CN701 of the MAIN8U (MAIN10U)
circuit board.
(USBMW10C束線をMAIN8U(MAIN10U)シート
のCN701に接続します。)
2-4 USBMW10C 束線をインシュロックタイ(ロケーショ
ン:300)にて放熱板に固定します。
USBMW10C connector assembly
(USBMW10C束線)
Location: 25(ロケーション:25)
Fix the USBMW10C connector
assembly to the radiator plate with
the cord holder (location: 300).
(USBMW10C束線をインシュロッ
クタイで放熱板に固定します。)
Cord holder(インシュロックタイ)
Location: 300(ロケーション:300)
15
MW8CX/MW10C
2-5 After fixing, place the slack portion of the USBM-
W10C connector assembly under the circuit board.
3. Processing Method of Jumper Wires
A
(a). Bend the jumper wires in the direction of the MAIN
part of the MAIN8U (MAIN10U) circuit board.
(b). Bend back the jumper wires in the direction of the
JACK part of the MAIN8U (MAIN10U) circuit board.
(c). After bending as mentioned above, press down the
jumper wires until the distance between their top end
and the MAIN part of the MAIN8U (MAIN10U) circuit
board surface is 15 mm or less.
2-5 固定後、余った USBMW10C 束線は基板下へ入れま
す。
USBMW10C connector assembly
(USBMW10C束線)
Location: 25(ロケーション:25)
3. ジャンパーリードの処理
A
(a). ジャンパーリードを MAIN 基板方向に折り曲げます。
(b). ジャンパーリードを再度 JACK 基板方向に折り返し
ます。
(c). 折り曲げ後、ジャンパーリードが、MAIN 基板面か
ら 15mm 以下になるように上から押します。
16
ABC
MW8CX/MW10C
B
(a). Bend the jumper wires to make an M-like fi gure.
(b). After bending as mentioned above, deal with the
jumper wires until the distance between their top end
and the MAIN part of the MAIN8U (MAIN10U) circuit
board surface is 15 mm or less.
C
(a). Bend the jumper wires in the direction of the MAIN
part of the MAIN8U (MAIN10U) circuit board.
AB
c
b
a
15 mm
MAIN
JACK
B
(a). ジャンパーリードを M 字形状に折り曲げます。
(b). 折り曲げ後、MAIN 基板面から 15mm 以下になるよ
うにジャンパーリードを処理します。
C
(a). ジャンパーリードを MAIN 基板方向に折り曲げます。
Heat-sink
Bend the jumper leads to
make an M-like figure.
(ジャンパーリードをM字
形状に折り曲げます。)
15 mm
15 mm
C
MAIN
JACK
a
JACKMAIN
17
MW8CX/MW10C
DISASSEMBLY PROCEDURE(分解手順)
• MW8CX
1. Top Cover (Time required: About 7 minutes)
1-1 Remove all knobs. (Fig. 1)
1-2 Remove the fourteen (14) screws marked [160],
the screw marked [163A], the screw marked
[165], and nineteen (19) each hexagonal nuts and
washers marked [A]. The top cover can then be
removed. (Fig. 1)
* The window level is not a component of the
top cover. When replacing the top cover, remove the window level and install it to the new
top cover. (Fig. 1)
* When installing the top cover on the bottom
case assembly, tighten the screws in the order
shown in Fig. 1. (Fig. 1)
2-4-2 Remove the volume knobs, the knob joints and
push buttons from the MAIN8U circuit board.
* The volume knobs, the knob joints and the
push buttons are not components of the MAIN8U
circuit board. When replacing the MAIN8U circuit board, remove the volume knobs, the knob
joints and the push buttons and install them
on the new MAIN8U circuit board.
* When installing the MAIN8U circuit board, fit
the seven (7) claws on the bottom case assembly to the MANI8U circuit board. (Photo 1)
3. USB Circuit board
(Time required: About 8 minutes)
3-1 Remove the top cover. (See procedure 1)
3-2 Remove the MAIN8U circuit board.
(See procedure 2-2)
3-3 Remove the two (2) screws marked [30]. The USB
assembly can then be removed. (Fig. 2)
3-4 Turn the hooks at four (4) positions until they are
in the same direction as the holes of the circuit
board. (As hooks at the two (2) positions are soldered, unsolder them before turning the hooks.)
(Photo 2)
3-5 The USB circuit board and Shield USB can then
be removed. (Photo 2)
* Shield USB is not component of the USB cir-
cuit board. When replacing the USB circuit
board, remove the Shield USB and install it on
the new USB circuit board. (Photo 2)
2-1 Remove the top cover. (See procedure 1)
2-2 Remove the two (2) screws marked [100] and the
screw marked [163B]. The MAIN10U circuit board
can then be removed. (Fig. 2)
2-3 Remove the volume knobs, the knob joints and
push buttons from the MAIN10U circuit board.
(Fig. 2)
* The volume knobs, the knob joints and push
buttons are not components of the MAIN10U
circuit board. When replacing the MAIN10U circuit board, remove the volume knobs, the knob
joints and push buttons and install them on
the new MAIN10U circuit board. (Fig. 2)
* When installing the MAIN10U circuit board, fi t
the seven (7) claws on the bottom case assembly to the MANI10U circuit board. (Photo 1)
3-1 Remove the top cover. (See procedure 1)
3-2 Remove the MAIN10U circuit board.
(See procedure 2-2)
3-3 Remove the two (2) screws marked [30]. The USB
assembly can then be removed. (Fig. 2)
3-4 Turn the hooks at four (4) positions until they are
in the same direction as the holes of the circuit
board. (As hooks at the two (2) positions are soldered, unsolder them before turning the hooks.)
(Photo 2)
3-5 The USB circuit board and Shield USB can then
be removed. (Photo 2)
* Shield USB is not component of the USB cir-
cuit board. When replacing the USB circuit
board, remove the Shield USB and install it on
the new USB circuit board. (Photo 2)
3.USB シート(所要時間:約 8 分)
3-1トップカバーを外します。(1 項参照)
3-2MAIN10U シートを外します。(2-2 項参照)
3-3[30] のネジ 2 本を外して、USBAss'y を外します。
(図 2)
3-44 箇所のフックを、基板の穴と同じ向きになるよ
うにひねります。(2 箇所のフックは半田付けされ
ているので、半田を外してからひねります。)
(写真 2)
3-5USB シートとシールド USB が分離できます。
(写真 2)
Ground
Input for TEST
PLL bypass select
PLL Power supply +2.5 V
Capacitor terminal for PLL
PLL Ground
I
I
I
JTAG input
I
O
I
O
-
I
I
I
I
JTAG output
Crystal oscillator
Crystal oscillator
Ground
Power supply +2.5 V
Hardware reset
CPU I/F chip select
CPU I/F write enable / Port D
CPU I/F read enable / Port D
I
I
I
CPU I/F address bus / Port D
I
DD
-
Power supply +3.3 V
I/O
I/O
I/O
I/O
I/O
CPU I/F data bus / Port C
I/O
I/O
I/O
I
O
I
O
I
I
O
I
O
O
O
-
-
-
Ground
Interrupt input / Port H
Serial output
Serial input
Serial output / Port G
Serial input / Port H
External synchronization clock / Port H
Serial output
Serial input / Port H
Bit clock output
Word clock output
Clock output / Port G
Ground
Power supply +2.5 V
Power supply +3.3 V
I/O
I/O
I/O
I/O
I/O
I/O port A
I/O
I/O
I/O
-
Ground
I/O
I/O
I/O
I/O
I/O
I/O port B
I/O
I/O
I/O
PIN
NO.
65
Vss
66
IOVDD
67
LBN/LWRN/PF6
68
UBN/UWRN/PF7
69
RDN/PF4
70
MD00
71
MD08
72
MD01
73
MD09
74
MD02
75
MD10
76
MD03
77
Vss
78
MD11
79
MD04
80
MD12
81
MD05
82
MD13
83
MD06
84
MD14
85
MD07
86
MD15
87
WRN/PF5
88
Vss
89
V
DD
90
IOVDD
91
MA17
92
MA16
93
MA15
94
MA14
95
MA13
96
MA12
97
MA11
98
MA10
99
MA09
100
MA08
101
MA07
102
MA06
103
MA05
104
Vss
105
MA04
106
MA03
107
MA02
108
MA01
109
CS0N/PG0
110
MA18
111
MA19
112
MA21/PF1
113
MA22/PF2
114
MA20
115
MA23/PF3
116
CSIN/PG1
117
MA00/PF0
118
Vss
119
V
120
121
122
123
124
125
126
127
128
DD
IOVDD
CS2N/PE0
CS3N/PE1
CS4N/CASN/PE2
CS5N/PE3
CS50RDN/PE4
CS51WRN/PE5
CS52WRN/PE6
CS53WRN/RASN/PE7
I/OFUNCTIONNAME
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
DSP: ICM07
-
-
Ground
Power supply +3.3 V
External memory lower-byte enable / Port F
External memory upper-byte enable / Port F
External memory read enable / Port F
External memory data bus
-
Ground
External memory data bus
-
-
-
Ground
Power supply +2.5 V
Power supply +3.3 V
External memory address bus
-
Ground
External memory address bus
External memory chip select / Port G
External memory address bus
External memory address bus / Port F
External memory address bus
External memory address bus / Port F
External memory chip select / Port G
External memory address bus / Port F
-
-
-
Ground
Power supply +2.5 V
Power supply +3.3 V
External memory chip select / Port E
24
MW8CX/MW10C
PCM2900E/2K (X7143A00) USB PROTOCOL CONTROLLER
PIN
NO.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
NAME
D+
D-
V
BUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
V
CCCI
AGNDC
V
IN
L
IN
R
V
V
COM
I/O
I/O
I/O
FUNCTION
USB differential input/output plus
USB differential input/output minus
Connect to USB power (V
-
-
Digital ground for USB transceiver
I
HID key state input(mute), active high
I
HID key state input(volume up),active high
I
HID key state input(volume down),active high
I
Must be set to high
I
Must be set to high
-
Internal analog power supply for codec
-
Analog ground for codec
I
ADC analog input for L-channel
I
ADC analog input for R-channel
-
Common for ADC/DAC(VCCCI/2)
BUS
)
PIN
NO.
OUT
OUT
CCP1I
CCP2I
XTO
XTI
CCXI
V
DDI
I/O
R
O
L
O
-
-
-
O
I
-
I
O
-
-
O
NAME
15
V
16
V
V
17
18
AGNDP
19
V
20
21
22
AGNDX
23
V
24
TEST0
25
TEST1
26
DGND
27
28
SSPND
AK5381VT-E2 (X5219A00) ADC
PIN
NO.
1
2
3
4
5
6
7
8
NAME
AINR
AINL
CKS1
VCOM
AGND
VA
VD
DGND
I/O
FUNCTION
I
I
I
O
-
-
-
-
Rch Analog input pin
Lch Analog input pin
Mode select 1 pin
Common voltage output pin
Analog ground
Analog power supply
Digital power supply
Digital ground
PIN
NO.
9
10
11
12
13
14
15
16
NAME
SDTO
LRCK
MCLK
SCLK
PDN
DIF
CKS2
CKS0
I/O
O
I/O
I
I/O
I
I
I
I
USB: IC101
FUNCTION
DAC analog output for R-channel
DAC analog output for L-channel
Internal analog power supply for PLL
Analog ground for PLL
Internal analog power supply for PLL
Crystal oscillator output
Crystal oscillator input
Analog ground for oscillator
Internal analog power supply for oscillator
Test pin, must be connected to GND
Test pin, must be left open
Digital gronud
Internal digital power supply
Suspend flag, active low
(Low: suspend, High: operational)
DSP: ICM04
FUNCTION
Audio serial data output pin
Output channnel clock pin
Master clock input pin
Audio serial data clock pin
Power down mode pin
Audio interface format pin
Mode select 2 pin
Mode select 0 pin