Page 1
Service Manual 
Model: MP8D 
8 CHANNEL MIC PRE-AMPLIFIER 
www.altoproaudio.com 
Version: 1.1 
 
 
Page 2
CONTENT 
1. Introduction……………………………………………………………………..1  
2. Specification…………………………………………………………………....2  
3. Block Diagram………………………………………………………………….3  
4. Wiring Diagram ………………………………………………………….........4  
5. Schematic Diagram …………………………………………………………..5  
6. PCB Layout……………………………………………………………………16  
7. Exploded View & Mechanical Parts List …………………...……….32  
8. BOM........................................................... ………………………………...35 
 
 
Page 3
1. INTRODUCTION 
˙ 2 channel Mic/Line Input jacks 6 channel Mic input capability.   
˙ Serves as DI box.   
˙ Individual Phantom power switch.   
˙ 8 channel ADAT and with AES/EBU or S/PDIF output.   
˙ Switch control with build-in light   
˙ 8 channels for MIC only also include individual 48 volt phantom power  
switch and high pass filter. 
˙ includes 2 channels with Hi-Z input for line level instrument.   
˙ TRS jack insert.  
 
 
Page 4
INPUT
2. Technical Specification
Connectors
Impedance
Max input level
CMRR
OUTPUT
Connectors
Impedance
Max output level
SYSTEM SPECIFICATIONS
Bandwidth
Frequency Response
Signa/Noise
THD
Crosstalk
Stereo Coupling
Digital
Six balanced XLR, Two 1/4"TRS Instrument Inputs and TWO
combo on Channel One and Tw
Balanced >50Kohm, Unbalanced>25Kohm
>+24dBu balanced and unbalanced
Typically>60dB at 1KHz
Eight 1/4" TRS (INSERT)
ADAT Light-Pipe Dight Optical
AES/EBU
Unbalanced>60ohm
>+21dBu unbalanced
20HZ to 20kHz, +0/-0.5dB
10Hz to 200kHz,+0/-3dB
>128dBu, weighted, 22Hz to 22kHz
<0.007%
<-100dB, 22Hz to 22Khz
True RMS detection
Sampling Rates
Output
44.1K,48K,44.1K x2,48K x2,44.1K x4,48K x4
24-bit
FUNCTION SWITCHES
48 Volt Phantom Power
High pass filter
Sample
Ext.clock
INDICATORS
INPUT LEVEL
Function switch
POWER SUPPLY
Mains Voltages
Fuse
Power consumption
Mains Connection
Eight channel of the MP8D has 48V Phantom power available.
>80Hz
Six sample rates
On/Off
3 element LED display: -20/0/CLIP dB.
LED indicator for each
USA/Canada
U.K./Australia
Europe
General Export Model
100-120VAC : 400mA (SLOW-BLOW)
200-240VAC : 200mA (SLOW-BLOW)
35 Watts
Standard IEC receptacle
~120VAC, 60Hz
~240VAC, 50Hz
~230VAC, 50Hz
~100-120VAC,
~200-240VAC, 50-60Hz
PHYSICAL
Dimension
Net Weight
W(483.0)*D(198.0)*H(44.2) mm
3.3Kg
 
 
Page 5
D
8
C
B
A
ADAT
DIGITAL OUT
WORD CLOCK
SAMPLE RATE
7 6 5 4 3 2 1
44.1K  48K  *2    *4
EXT. CLO CK
OUT
IN
5 
9 
4 
8 
3 
7 
2 
6 
1
S/PDIF-AES/EBU
DIGITAL OUT
CH3-D-OUT
CH4-D-OUT
CH5-D-OUT
CH6-D-OUT
CH7-D-OUT
CH8-D-OUT
CH2-D-OUT
CH1-D-OUT
MP8D BLOCK DIAGRAM
GR YEL RED
(-20dB 0dB CLIP)
PHANTOM POWER 48V
CH1-D-OUT
CH1 INSERT
J1
3c5e1a
4d
HI-PASS SW
AMP
PHANTOM POWER 48V
+48V
X1X2X3
J1
JY6351G-02
3c5e1a
4d
2b
R
GR YEL RED
(-20dB 0dB CLIP)
80dB
HI-PASS
HI-PASS SW
AMP
6
2132211
GAIN LEVEL 0dB~60dB
HIGH INPUT 
IMPEDANCE
33
+48V
12345
X1X2X3
CH2 INSERT
2b
R
12345
CH2-D-OUT
CH3-D-OUT
CH3 INSERT
J1
3c5e1a
4d
HI-PASS SW
AMP
PHANTOM POWER 48V
+48V
213
4
JY6351G-02
GR YEL RED
(-20dB 0dB CLIP)
80dB
HI-PASS
J1
3c5e1a
4d
JY6351G-02
2b
R
GR YEL RED
(-20dB 0dB CLIP)
80dB
HI-PASS
HI-PASS SW
GAIN LEVEL 0dB~60dB
AMP
PHANTOM POWER 48V
+48V
213
4
GAIN LEVEL 0dB~60dB
HIGH INPUT 
IMPEDANCE
6
2132211
33
CH8-D-OUT
CH8 INSERT
JY6351G-02
2b
R
80dB
HI-PASS
LINE IN2
LINE IN1
MIC1 IN
D
INSTRUMENT IN1
MIC2 IN
INSTRUMENT IN2
C
MIC3 IN
B
MIC8 IN
A
1  2  3  4  5  6  7  8
 
Page 6
7 6 5 4 3 2 1
8
MP 8-DigitaloutV1
MP8-DigitaloutV2
CN2
D
CN7
CN1  CN2  CN3 CN4  CN5 CN6
CN7
CN5
D
CN3
AC Socket
MP 8INO U T
CN1
藍
紅
PGND
C
PT-MP8D
CN1
CN22
CN18
CN5  CN6
CN4
CN19  CN20  CN21
CN7  CN13
CN2
GND
CN17
MP 8-MAIN
CN16
CN3
CN11
黑
FUS E
白
黑
白
藍
黃
C
B
CN8  CN9  CN10  CN14
CN15  CN12
POWER SW
B
MP8-DISPLAY
A
1  2  3  4  5  6  78
A
 
Page 7
7 6 5 4 3 2 1
8
MP8-MAIN (1/5)
D
+VCC
CH1-D-OUT 
CH2-D-OUT 
CH3-D-OUT 
CH4-D-OUT 
CH5-D-OUT 
CH6-D-OUT 
CH7-D-OUT 
CH8-D-OUT
INPUT CH1 - CH2  
MP8-MAIN-02.Sch
INPUT CH3 - CH5  
MP8-MAIN-03.Sch
INPUT CH6 - CH8  
MP8-MAIN-04.Sch
LD1 
YEL
LD2 
YEL
LD3 
YEL
LD4 
YEL
LD5
YEL
LD6
YEL
LD7 
YEL
LD8 
YEL
D1 
1N4148
D2 
1N4148
R22 
10K
CH2-IN-X1-1
CH2-IN-X2-1 
CH2-IN-X3-1
CH2-IN-X1
CH2-IN-X2 
CH2-IN-X3
CH1-IN-X1-1
CH1-IN-X2-1 
CH1-IN-X3-1
CH1-IN-X1
CH1-IN-X2 
CH1-IN-X3
CH5-IN-X1
CH5-IN-X2 
CH5-IN-X3
CH4-IN-X1
CH4-IN-X2 
CH4-IN-X3
CH3-IN-X1
CH3-IN-X2 
CH3-IN-X3
CH8-IN-X1
CH8-IN-X2 
CH8-IN-X3
CH7-IN-X1
CH7-IN-X2 
CH7-IN-X3
CH6-IN-X2
CH6-IN-X2 
CH6-IN-X3
1 
2 
3 
4 
5 
6 
7 
8
9 
10 
11 
12
1
2
3
4
5
6
7
8
9 
10
1
2
3
4
5
6
7
8
9 
10
CN1
CN-HD6X2 
CN2
CN-HD5X2
CN3
CN-HD5X2
R13
680R 1/ 4W
BC327
TR1
BC327
CBE
SW1B 
PBA/6PC
SW3B
C
PBA/6PC
SW5B 
PBA/6PC
SW7B 
PBA/6PC
SW9B 
PBA/6PC
SW 11B 
PBA/6PC
SW 13B 
PBA/6PC
B
SW 15B 
PBA/6PC
5
5
5
5
5
5
5
5
4 
6
(CH1 HI-PASS led)
4 
6
(CH2 HI-PASS led)
4
6
(CH3 HI-PASS led)
4
6
(CH4 HI-PASS led)
4 
6
(CH5 HI-PASS led)
4 
6
(CH6 HI-PASS led)
4
6
(CH7 HI-PASS led)
4 
6
(CH8 HI-PASS led)
-VCC
CN4
1 
2 
3 
4 
5 
6 
7 
8 
9
10
CN-HD5X2
( TO Digita l Out Boar d )
D
C
B
1  2  3  4  5  6  78
POWER SUPPLY 
MP8 MN-PWR.s ch
A
 
Page 8
CH1-IN-X3
MIC1 IN
CH1-IN-X2
D
D78
1N 4148
CH1-IN-X3-1
LINE IN1
CH1-IN-X2-1
C
INSTRUMENT IN
J1
PHONEJACK
CH2-IN-X3
MIC2 IN
CH2-IN-X2
B
D82 
1N 4148
CH2-IN-X3- 1
LINE IN2
CH2-IN-X2- 1
A
INSTRUMENT IN
J2
PHONEJACK
D79
1N 4148
+VCC -VCC
C2 66 47uF /25V
C2 67 47uF /25V
BC337
CBE
3 
33 
22 
2 
11 
1
D83 
1N 4148
+VCC -VC C
C273 47uF /25V
C274 47uF /25V
3 
33 
22 
2 
11 
1
R33
47R0
R34
47R0
D80
1N 4148
R59
6K81
R36
47R0
R37
47R0
+VCC  -VC C
CH1-48V
R57
6K81
D81
1N 4148
+VCC  -VCC
R74
5K62
R73
5K62
R427
10K
R428
10K
100N
R429
5M1
CH2-48V
47uF / 63V
D86 
1N 4148
R76
5K62
R75
5K62
R434
10K
C275
100N
R435
10K
C276
100N
R436
5M1
R58
6K81
330P
47uF/ 63V
C269
R60
6K81
C18
330P
C3
D87 
1N 4148
47uF / 63V
C17
C1
C268
100N
C4
47uF / 63V
C2
TR51
BC33 7
R437
5M1
RY12W-K
D48
1N4148
TR50
BC33 7
R430
5M 1
RL2
RY12W-K
D51
1N4 148
1N4148
R438
1K
C277
RL1
D49
1N4148
R431
1K
D52
33P
7 6 5 4 3 2 1
+VCC
R117
C19
2K49
10N
3906
R93
20K0
C27
1N
2K49
R122
-VCC
TR26
R173
475R
TR10
R78
1K50
2SA970
1 2
3 4
5 6
7 8
-VCC
R77
1K50
C20
10N
R174
475R
C28
1N
+VCC
-VCC
R123
2K49
R118
2K49
TR27
TR11
1000uF/10V
3906
2SA970
C31
+VCC
VR1
02C 10K
R35
4R7 0
R119
2K49
+VCC
R120
2K49
D35
BAS316
-VCC
R121
2K49
U1A
4580M
3906
TR28
3 
2
C40
R193
22P
5K11
4580M
5 
6
C41
22P
R196
5K11
U1B
1
7
22P
R194
5K11
R225
10K0
R226
10K0
0.22u F / 50V
C42
C48
R241
1K3
R277
62K
3 
2
U2A
4580M
C43
22P
5K11
C49
0.22u F / 50V
6 
5
R195
1
U2B
4580M
C72
47uF / 25V
R94
20K
C50
0.22u F / 50V
R249
6K8
C73
47uF / 25V
7
R95
20K
HI-PASS
1 
3
SW1A
PBA/6PC
2
CH1-48V
CH2-48V
C74
47uF/25V
CH1-INS 
CH1-RTN
CH1-D-OUT
CN5
1 
2 
3 
4 
5 
6
6P-2. 5
(TO DISPLAY BOARD)
MP8-MAIN (2/5)
CN18
1 
2 
3 
4 
5 
6
6P-2. 5
(CH1 & CH2 INSERT)
8
D
A970
LINE IN GAIN=-40~+10dB
MIC GAIN=-60~0dB
RYPWR
D50
1N4148
+VCC -VC C
U17A
2 
3
4580M
C270
33P
1 2
3 4
5 6
7 8
D53
1N4 148
+VCC -VC C
U17B
6 
5
4580M
RYPWR
7
1
R79
1K50
C278
47uF/25V
C271
47uF / 25V
-VCC
C23
10N
R96
20K0
C29
1N
R124
2K49
R439
20K
R432
20K
+VCC
-VCC
RYPWR  +VCC
C272
47uF/ 25V
R125
C24
2K49
10N
3906
TR29
R177
R178
475R
475R
TR12
2SA970
R80
1K50
C30
1N
+VCC
-VCC
R433
680R 1/4 W
R127
2K49
3906
TR30
TR13
2SA970
R126
2K49
+VCC
C32
1000uF/10V
VR2
02C 10K
R38
4R7 0
2K49
CB E
R128
+VCC
D36
BAS316
-VCC
MIC GAIN=-60~0dB
LI N E IN GAIN =- 4 0 ~ +1 0 dB
R129
2K49
R130
2K49
C
R242
1K3
R278
62K
3 
2
U4A
4580M
C47
22P
5K11
C52
0.22u F / 50V
6 
5
R200
1
U4B
4580M
C75
47uF / 25V
R97
20K
C53
0.22u F / 50V
R250
6K8
C76
47uF / 25V
7
R98
20K
HI-PASS
1 
3
SW3A
PBA/6PC
2
C77
47uF/25V
CH2-INS 
CH2-RTN
CH2-D-OUT
+VCC
-VC C
U1C
4580M
B
C112
8 4
100N
C113
100N
U2C
4580M
8 4
C114
100N
C115
100N
U3C
4580M
8 4
C116
8 4
100N
U4C
4580M
C117
100N
l
C118
100N
C119
100N
U17C
4580M
8 4
C279
100N
C280
100N
A
C46
22P
U3A
4580M
3906
TR31
3 
2
C44
22P
5 
6
R197
5K11
C45
22P
R198
5K11
4580M
U3B
1
7
R199
5K11
R227
10K0
R228
10K0
0.22u F / 50V
C51
1  2  3  4  5  6  78
 
Page 9
7 6 5 4 3 2 1
8
CH3-48V
R61
R39
47R0
R40 
47R0
6K81
D
CH3-IN-X3
MIC3 IN
CH3-IN-X2
R62
6K81
C144
330P
C5
47uF/63V
C6
47uF/63V
MIC GAIN=-60~0dB
D55
D54
1N 4148
1N 4148
+VCC  -VCC
D57 
1N4148
CH4-48V  +VCC  +VCC  +VCC +VCC
C
CH4-IN-X3
MIC4 IN
CH4-IN-X2
R42
47R0
R43 
47R0
6K81
R63
+VCC -VC C
R81
1K5 0
D56 
1N4148
R64
6K81
47uF/63V
C145
330P
C7
47uF/63V
C8
MIC GAIN=-60~0dB
D59
D58
1N 4148
1N 4148
+VCC  -VCC
D60 
1N4148
B
CH5-48V
R65
6K81
CH5-IN-X3
MIC5 IN
CH5-IN-X2
R44
47R0
R46 
47R0
+VCC -VC C
R83
1K5 0
D61 
1N4148
R66
6K81
47uF/63V
C146
330P
C10
47uF/63V
C9
MIC GAIN=-60~0dB
D89
D88
1N 4148
1N 4148
+VCC  -VCC
A
D64 
1N4148
R85
1K5 0
D65 
1N4148
+VCC -VC C
-VCC
-VCC
-VCC
C150 
10N
R99
20K 0
C186
1N
2K4 9
C152 
10N
R101
20K 0
C188
1N
2K4 9
C154 
10N
R104
20K 0
C190
1N
2K4 9
R135
R142
R149
+VCC
-VCC
-VCC
+VCC
-VCC
R131 
2K49
TR32
R181
475R
TR14
R82
1K50
R136 
2K49
TR35
R183
475R
TR16
R84
1K50
R143 
2K49
TR38
R185
475R
TR18
R86
1K50
3906
3906
3906
2SA970
2SA970
2SA970
C151 
10N
475R
C153 
10N
475R
C155 
10N
475R
R182
C187 
1N
R184
C189 
1N
R186
C191 
1N
+VCC
-VCC
-VCC
+VCC
-VCC
R137
2K49
R144
2K49
R150
2K49
R132 
2K4 9
TR33
TR15
R138 
2K4 9
TR36
TR17
R145 
2K4 9
TR39
TR19
1000uF/10 V
3906
2SA970
1000uF/10 V
3906
2SA970
1000uF/10 V
3906
2SA970
C34
C35
C36
+VCC
VR3 
02C10K
R41 
4R70
VR4 
02C10K
R45 
4R70
+VCC
VR5 
02C10K
R47 
4R70
R133
2K4 9
R139
2K4 9
R146
2K4 9
+VCC
R134 
2K4 9
D37
BAS316
-VCC
D38
BAS316
-VCC
+VCC
D39
BAS316
-VCC
TR34
R140 
2K4 9
R141 
2K4 9
TR37
R147 
2K4 9
R148 
2K4 9
TR40
R151 
2K4 9
3906
3906
U5A
4580M
3 
2
C162
R201
22P
5K1 1
4580M
5 
6
C166
22P
R204 
5K1 1
U7A
4580M
3 
2
C165
R205
22P
5K1 1
4580M
5 
6
C169
22P
R208 
5K1 1
U9A
4580M
3906
3 
2
C172
R212
22P
5K1 1
4580M
5 
6
C173
22P
R211 
5K1 1
U5B
U7B
U9B
1
7
1
7
1
7
22P
R202
5K1 1
R229 
10K 0
R230
10K 0
0.22uF/50V
22P
R206
5K1 1
R231 
10K 0
R233
10K 0
0.22uF/50V
22P
R209
5K1 1
R232 
10K 0
R234
10K 0
0.22uF/50V
C163
C56
C167
C58
C170
C60
R243
1K3
R279 
62K
R244
1K3
R280 
62K
R245
1K3
R281 
62K
3 
2
3 
2
3 
2
U6A
4580M
C164 
22P
5K11
C54
0.22u F/50V
6 
5
U8A
4580M
C168 
22P
5K11
C59
0.22u F/50V
6 
5
U10A
4580M
C171 
22P
5K11
C61
0.22u F/50V
6 
5
R203
R207
R210
1
U6B
4580M
1
U8B
4580M
1
U10B
4580M
C78
47uF/25V
R100
20K
C55
0.22uF/50V 
R251
6K8
C79
47uF/25V
7
C81
47uF/25V
R102
20K
C57
0.22uF/50V 
R252
6K8
C84
47uF/25V
7
C83
47uF/25V
R105
20K
C62
0.22uF/50V 
R253
6K8
C85
47uF/25V
7
R103
20K
R106
20K
R107
20K
HI-PASS
1 
3
SW5A
PBA/6PC
HI-PASS
1 
3
SW7A
PBA/6PC
HI-PASS
1 
3
SW9A
PBA/6PC
2
2
2
CH3-48V
CH4-48V
CH5-48V
CH6-INS
CH6-48V
C80
47uF/25V
C82
47uF/25V
C86
47uF/25V
CH3-INS 
CH3-RTN
CH3-D-OUT
CN6
1 
2 
3 
4 
5 
6
6P-2.5
(TO DISPLAY BOARD)
CH4-INS 
CH4-RTN
CH4-D-OUT
CH5-INS 
CH5-RTN
CH5-D-OUT
CN7
1 
2 
3 
4 
5 
6
6P-2.5
(TO DISPLAY BOARD)
+VCC
-VCC
CH6-INS 
CH6-RTN
U5C
4580M
8 4
CN19
1 
2 
3 
4 
5 
6
6P-2.5
(CH3 & CH4 INSERT)
CN20
1 
2 
3 
4 
5 
6
6P-2.5
(CH5 & CH6 INSERT)
MP8-MAIN (3/5)
C120 
100N
C121 
100N
U6C
4580M
C122
8 4
+VCC
-VCC
100N
C123 
100N
U7C
4580M
U9C
4580M
8 4
8 4
C124 
100N
C125 
100N
C126 
100N
C130 
100N
U8C
4580M
U10C
4580M
8 4
8 4
C127 
100N
C128 
100N
C129 
100N
C131 
100N
D
C
B
A
l :
1  2  3  4  5  6  78
:
 
Page 10
7 6 5 4 3 2 1
8
D
C
MIC6 IN
MIC GAIN=-60~0dB
LINE IN GAIN=-40~+10dB
MIC7 IN
CH6-IN-X3
CH6-IN-X2
CH7-IN-X3
CH7-IN-X2
R67
6K81
R48 
47R0
R49 
47R0
D66 
1N 4148
+VCC  -VCC
R69
6K81
R51 
47R0
R52 
47R0
D70 
1N 4148
+VCC  -VCC
CH6-48V
R68
6K81
C12
47uF/63V
C147
330P
C11
47uF/63V
D67 
1N 4148
R87
D71 
1N 4148
+VCC -VCC
+VCC -VCC
1K5 0
D69 
1N 4148
R70
6K81
C148
330P
C13
47uF/63V
R89
1K5 0
D73 
1N 4148
C14
47uF/63V
D68 
1N 4148
CH7-48V  +VCC  +VCC  +VCC +VCC
D72 
1N 4148
-VCC
-VCC
C156 
10N
R108
20K 0
C192 
1N
R156
2K4 9
C158 
10N
R110
20K 0
C194 
1N
R163
2K4 9
+VCC
-VCC
-VCC
R152 
2K4 9
TR41
R187 
475R
TR20
R88 
1K50
R157 
2K4 9
TR44
R189 
475R
TR22
R90 
1K50
3906
2SA970
3906
2SA970
C157 
10N
R188
475R
C159 
10N
R190
475R
C193 
1N
C195 
1N
+VCC
-VCC
-VCC
R158
2K49
R165
2K49
R153 
2K4 9
TR42
TR21
R159 
2K4 9
TR45
TR23
1000uF/10V
3906
2SA970
1000uF/10V
3906
2SA970
C37
C38
+VCC
VR6 
02C10K
R50 
4R70
VR7 
02C10K
R55 
4R70
R154
2K4 9
R160
2K4 9
+VCC
R155
2K49
D40
BAS316
-VCC
D41
BAS316
-VCC
TR43
R161
2K49
R162
2K49
TR46
R168
2K49
3906
3906
3 
2
5 
6
3 
2
5 
6
C174 
22P
C177 
22P
U11A
4580M
U13A
4580M
R216
5K11
R220
5K11
R213 
5K1 1
C178 
22P
R217 
5K1 1
C182 
22P
4580M
4580M
U11B
U13B
1
7
1
7
C175
22P
R214
5K11
R235 
10K 0
R236
10K 0
0.22uF/50V
C179
22P
R218
5K11
R237 
10K 0
R239
10K 0
0.22uF/50V
C65
C68
R246
1K3
R282 
62K
R247
1K3
R283 
62K
3 
2
3 
2
U12A
4580M
C176
22P 
R215
5K1 1
C63
0.22uF/50V
6 
5
U14A
4580M
C180
22P 
R219
5K1 1
C66
0.22uF/50V
6 
5
1
U12B
4580M
1
U14B
4580M
C87
47uF/25V
R109
20K
C64
0.22uF/50V 
R254
6K8
C88
47uF/25V
7
C90
47uF/25V
R111
20K
C67
0.22uF/50V 
R255
6K8
C93
47uF/25V
7
R112
20K
R115
20K
HI-PASS
1 
3
SW11A
PBA/6PC
HI-PASS
1 
3
SW13A
PS-22E85L
2
C89
CH6-INS 
CH6-RTN
CH6-D-O UT
47uF/25V
+VCC
-VCC
2
C91
CH7-INS 
CH7-RTN
CH7-D-O UT
47uF/25V
8 4
U11C
4580M
CN21
1 
2 
3 
4 
5 
6
6P-2.5
(CH7 & CH8 IN SERT)
MP8-MAIN (4/5)
LD46 YEL
CN11
1 
2 
3 
4
4P-2.5
FROM DISP BOARD
1
2
3 
4 
6
+VCC
SW17 
SW SPST-0204
C134 
100N
C135 
100N
-VCC
U13C
4580M
U15C
4580M
C136
8 4
8 4
100N
C137 
100N
C138 
100N
C142 
100N
U14C
4580M
U16C
4580M
8 4
8 4
5
(EXT. CLOCK SW)
C132
8 4
100N
U12C
4580M
C133 
100N
C139 
100N
C140 
100N
C141 
100N
C143 
100N
D
C
B
A
MIC8 IN
CH8-48V
R71
6K81
CH8-IN-X3
CH8-IN-X2
1  2  3  4  5  6  78
R53 
47R0
R54 
47R0
D74 
1N 4148
+VCC  -VCC
D76
1N4148
D75 
1N 4148
1N4148
R72
6K81
C16
47uF/63V
C149
330P
C15
47uF/63V
R91
D77
1K5 0
+VCC -VCC
-VCC
C160 
10N
R113
20K 0
C196 
1N
R170
2K4 9
+VCC
-VCC
R164 
2K4 9
TR47
R191 
475R
TR24
R92 
1K50
3906
2SA970
C161 
10N
R192
475R
C197 
1N
+VCC
-VCC
R166 
2K4 9
R171
2K49
TR48
TR25
1000uF/10V
3906
2SA970
C39
+VCC
VR8 
02C10K
R56 
4R70
R167
2K4 9
+VCC
R169
2K49
D42
BAS316
-VCC
TR49
R172
2K49
U15A
4580M
3
3906
2
C181
R221
22P
5K1 1
4580M
5 
6
C185 
22P
R224
5K11
U15B
1
7
C183
22P
R222
5K11
R238 
10K 0
R240
10K 0
0.22uF/50V
C69
R248
1K3
R284 
62K
3 
2
U16A
4580M
C184
22P 
R223
5K1 1
C70
0.22uF/50V
6 
5
1
U16B
4580M
C92
47uF/25V
R114
20K
C71
0.22uF/50V 
R256
6K8
C94
47uF/25V
7
R116
20K
HI-PASS
1 
3
SW15A
PS-22E85L
2
CH7-48V
CH8-48V
C95
47uF/25V
CH7-INS
+48V
+V-LE D
LGND
-V- LED
CH8-INS 
CH8-RTN
CH8-D-O UT
CN13
1 
2 
3 
4 
5 
6 
7 
8 
9 
10
10P-2.5
(TO DISPLAY BOARD)
l
B
A
 
Page 11
3 2 1
4
MP2-MN-PW R(1/1)
D
R2 
220R
+VCC
R17 
220R
C16
47u/100V
C8 
10uF/50V
U4 
LM317T
+V-LED
-V-LED
R18 
8K2
+VCC
-VCC 
+48V
LGND
C4 
100N
D12 
RLS4148
R19 
220R
U16 
LM337T
C17 
47u/63V
CN3
1 
2 
3 
4 
5 
6 
7
CN2.5-7P -18 0
R11 
2K7
U15
D10 
2A W2-08
+V
C3 
100N
-V
PGND
PGND  LGND
GND  DGND
D9
C1 
100N
C
CN1
5
B
A
4 
3 
2 
1
CN3.9-5P -1 8 0
POWER 
SUP PLY 
CONNECTOR
2A W2-08
100uF/100V
C11 
100N
PGND
C102
C12
100uF/100V
C13 
100N
D11 
2A W2-08
DGND
C20 
1000uF/35V
PGND
VCC1
C2 
2200uF/25V
R1 
0R0
C7 
2200uF/25V
R7 
220R1/2W
R8 
220R1/2W
C14 
220uF/100V
R16 
0R0
R151 
0R0
R9 
180K
LM317T
C15 
100N
R10 
2K7
R3 
220R
R12
470R 1/4W
C18 
100N
-VCC -V
C9 
10uF/50V
+48V
C19
470uF/50V
C5 
100N
DGND
+VCC
-VCC
+5V
DGND
[ TO DIGI-OUT B O A RD ] 
U17 
LM317T
R13 
0R0
R14 
0R0
R15 
680R
CN2
1 
2
2P-2.5
R5 
220R
+V-LED
-V-LED
+5V VCC1
C10 
1000uF/16V
D
C
B
A
1  2  34
 
Page 12
3 2 1
J9
J10
X1 
X3
X2 
1 
2 
3 
4 
5 
6
X1
X3 
X2 
1 
2 
3 
4 
5 
6
4 
2 
3 
1
D
CH1 INPUT
C
CH2 INPUT
J11
CH3 INPUT
CH1-IN-X1 
CH1-IN-X3
CH1-IN-X2 
CH1-IN-X2-1
CH1-IN-X3-1 
CH1-IN-X1-1
CH2-IN-X1 
CH2-IN-X3
CH2-IN-X2 
CH2-IN-X2-1
CH2-IN-X3-1
CH2-IN-X1-1
CH3-IN-X2 
CH3-IN-X3 
CH3-IN-X1
JY5042-030G
B
J12
CH4 INPUT
4 
2 
3 
1
CH4-IN-X2 
CH4-IN-X3 
CH4-IN-X1
JY5042-030G
MP8D-INOUT(1 /2)
J13
CH5 INPUT
JY5042-030 G
J14
CH6 INPUT
JY5042-030 G
J15
CH7 INPUT
JY5042-030 G
J16
CH8 INPUT
JY5042-030 G
4 
2 
3 
1
4 
2 
3 
1
4 
2 
3 
1
4 
2 
3 
1
MP8 OUTPUT SECTION 
MP8-INOUT-02. Sch
CH5-IN-X2 
CH5-IN-X3 
CH5-IN-X1
CH6-IN-X2 
CH6-IN-X3 
CH6-IN-X1
CH7-IN-X2 
CH7-IN-X3 
CH7-IN-X1
CH8-IN-X2 
CH8-IN-X3 
CH8-IN-X1
CH2-IN-X1-1 
CH2-IN-X2-1 
CH2-IN-X3-1 
CH2-IN-X1 
CH2-IN-X2 
CH2-IN-X3 
CH1-IN-X1-1 
CH1-IN-X2-1 
CH1-IN-X3-1 
CH1-IN-X1 
CH1-IN-X2 
CH1-IN-X3
CH5-IN-X1 
CH5-IN-X2 
CH5-IN-X3 
CH4-IN-X1 
CH4-IN-X2 
CH4-IN-X3 
CH3-IN-X1 
CH3-IN-X2 
CH3-IN-X3
CH8-IN-X1 
CH8-IN-X2 
CH8-IN-X3 
CH7-IN-X1 
CH7-IN-X2 
CH7-IN-X3 
CH6-IN-X1 
CH6-IN-X2 
CH6-IN-X3
1 
2 
3 
4 
5 
6 
7 
8
9 
10 
11 
12
1
2
3
4
5
6
7
8
9 
10
1
2
3
4
5
6
7
8
9 
10
CN1
CN-HD6X2
CN2
CN-HD5X2
CN3
CN-HD5X2
4
D
C
B
A
A
l 
1  2  34
 
Page 13
3 2 1
4
MP8D-INOUT(2 /2)
D
CN4
1 
2 
3 
4 
5 
6
CON6
C
CN6
1
CON6
2 
3 
4 
5 
6
B
A
CH1-INS 
CH1-RTN
CH3-INS 
CH3-RTN
CH2-INS
CH2-RTN
CH4-INS 
CH4-RTN
R1 
120R
R3 
120R
R5 
120R
R6 
120R
CH1 INSERT
J1
1a 
2b 
4d
3c
5e
JY6351G-02
CH2 INSERT
J2
1a 
2b 
4d
3c
5e
JY6351G-02
CH3 INSERT
J3
1a 
2b 
4d
3c
5e
JY6351G-02
CH4 INSERT
J4
1a 
2b 
4d
3c
5e
JY6351G-02
CN5
1 
2 
3 
4 
5 
6
CON6
CN7
1 
2 
3 
4 
5 
6
CON6
CH5-INS
CH5-RTN
CH7-INS 
CH7-RTN
CH6-INS 
CH6-RTN
CH8-INS 
CH8-RTN
R4 
120R
R7 
120R
R8 
120R
R2 
120R
CH5 INSERT
J5
1a 
2b 
4d
3c
5e
JY6351G-02
CH6 INSERT
J6
1a 
2b 
4d
3c
5e
JY6351G-02
CH7 INSERT
J7
1a 
2b 
4d
3c
5e
JY6351G-02
CH8 INSERT
J8
1a 
2b 
4d
3c
5e
JY6351G-02
D
C
B
A
l 
1  2  34
 
Page 14
+V-LED-d
+V-LED-d
+V-LED-d
7 6 5 4 3 2 1
8
MP8-DISPLAY (1/2)
+V-LED-d
D3
680R 1/4W
LGND -d
LD 10 
YEL
LD 11 
GR
(-20dB)
LD 12 
YEL
(0dB)
LD 13
RED
(CLIP)
GND-d
GND-d 
+48V-d
4148 
D4
4148
R23 
10 K
LGND -d
R448
100K
C284 
100uF/50V
+V-IC
-V-IC
R310
110R
R286
100R
R294
200R
R302
402R 1%
+V-LED-d
R318 
36K
R396 
100K
PH ANTO M2 SW
5
SW 4 B 
PBA/6PC
8 4
U20C
4580 M
PH ANTO M SW & LED
LGND -d
2 
3
LGND -d
CH2-METER 
CH2-48V-d
GND-d
4 
6
8 4
U23C 
4580 M
SW 4 A 
PBA/6PC
2
11 
10
9 
8
7 
6
R326 
10 0K
D13
4148
GND-d 
+48V-d
C218
47uF /25V
R349 
10K
U20A
4580 M
U21E
LM 339
BC 327
U22D 
LM 339
U22C 
LM 339
U22B 
LM 339
LGND -d
1
CN8
1 
2 
3 
4 
5 
6
6P -2.5
3 12
TR3
13
14
1 
3
1
D14 
4148
LGND-d
3 12
U22E
LM 339
R15
R357
22R 1/4W
D
TR2
BC 327
R14
PH ANTO M SW & LED
SW 2 A 
PBA/6PC
2
LGND -d
R309
110R
R285
100R
R293
C
200R
R301
402R 1%
+V-LED-d
11 
10
9 
8
7 
6
C217
47uF /25V
R325 
100K
+48V-d
TR52 
BC337
R317 
36K
R395 
10 0K
LGND-d
B
C281
R443
100uF/50V
100R
A
GND-d
R444
10K
6 
5
LGND-d
CH1-METER 
CH1-48V-d
GND-d
C283 
100uF/50V
GND-d
GND-d
4580 M
D11
4148
R445
100K
C282 
100uF/50V
R29 
10 K
U20B
R446 
100R
1 
3
U21D 
LM 339
13
U21C 
LM 339
14
U21B 
LM 339
1
LGND -d
7
+48V-d
TR53 
BC337
PH ANTO M1 SW
5
SW 2 B 
PBA/6PC
LGND -d
D12 
4148
R356
22R 1/4W
R447 
10K
4 
6
680R 1/4W
LGND -d
LD 14 
YEL
LD 15 
GR
(-20dB)
LD 16 
YEL
(0dB)
LD 17 
RED
(CLIP)
U24E
LM 339
D5 
4148
D6 
4148
TR4
BC 327
R24 
10K
R311
110R
R287
100R
R295
200R
R303
402R 1%
LGND -d
+V-LED-d
PH ANTO M SW & LED
SW 6 A
PBA/6PC
2
U24D
11
LM 339
10
9 
8
7 
6
C219
47 uF/25V
R350
U24C 
LM 339
U24B 
LM 339
13
14
10 K
LGND -d
1 
3
1
LGND -d
R16
R358
22R 1/4W
R327 
100K
U25E
LM 339
GND-d
3 12
R319 
36K
C285
100uF/50V
LGND-d
3 12
R397 
10 0K
6 
5
LGND-d
CH3-M ETER 
CH3-48V-d
GND-d
+48V-d
R449 
100R
D15
4148
TR54 
BC337
C225
104P
U23B
4580 M
R450
10K
R30
22R 1/4W
R364
22R 1/4W
D16 
4148
7
R451 
100K
C286 
100uF/50V
GND-d
+V-LED-d
-V-LED-d
680R 1/4W
LGND -d
LD 18 
YEL
LD 19 
GR
(-20dB)
LD 20 
YEL
(0dB)
LD 21 
RED
(CLIP)
D7 
4148
D8 
4148
R25 
10K
LGND -d
PH ANTO M3 SW
5
SW 6 B 
PBA/6PC
R320 
36K
4 
6
R312
110R
R288
100 R
R296
200R
R304
402R 1%
R398 
100K
LGND -d
+V-LED-d
GND-d 
+48V-d
PH ANTO M SW & LED
SW 8 A 
PBA/6PC
R328 
10 0K
2 
3
LGND -d
4148
CH4-METER 
CH4-48V-d
GND-d
2
11 
10
9 
8
7 
6
C220
47uF /25V
D17
R351 
10K
U23A
45 80 M
GND-d
TR5
BC 327
1 
3
U25D 
LM 339
13
U25C 
LM 339
14
U25B 
LM 339
1
LGND -d
1
CN9
1 
2 
3 
4 
5 
6
6P -2.5
C287 
100uF/50V
LGND-d
D18 
4148
R452 
100R
R17
R359
22R 1/4W
+48V-d
680R 1/4W
LGND -d
LD 22 
YEL
LD 23 
GR
(-20dB)
LD 24 
YEL
(0dB)
LD 25 
RED
(CLIP)
TR55 
BC337
l 
D9 
4148
D10 
4148
R453 
10K
D
R26 
10K
C
MP8 MAIN CH5 -8  DISPLAY 
MP8MN-DI SP-02. Sch
B
PH ANTO M4 SW
GND-d
R454 
100K
C288 
100uF/50V
5
SW 8 B 
PBA/6PC
4
GND-d
6
+48V-d
A
1  2  3  4  5  6  78
 
Page 15
7 6 5 4 3 2 1
8
+V-LED-d
D19
680R 1/4W
LD 26
YEL
LD 27 
GR
(-20dB)
LD 28 
YEL
(0dB)
LD 29
RED
(CLIP)
LGND-d
C292 
100uF/50V
LGND -d
R460
100K
41 48 
D20
41 48
R27 
10K
110R
R290
100R
R298
200R
R306
402R 1%
R322 
36K
R400 
10 0K
PH ANTO M6 SW
5
SW 1 2B 
PBA/6PC
4 
6
R314
LGND -d
+V-LED-d
GND-d 
+48V-d
PH ANTO M SW & LED
R330 
100K
2 
3
LGND-d
4148
CH6-M ETER 
CH6-48V-d
GND-d
4 
6
SW 1 2A
PBA/6PC
2
11 
10
9 
8
7 
6
C222
47 uF/25V
R353 
10 K
U26A
45 80 M
D29
GND-d 
+48V-d
TR7
BC 327
U28D 
LM 339
U28C 
LM 339
U28B 
LM 339
LGND -d
1
CN10
1 
2 
3 
4 
5 
6
6P-2.5
13
14
1 
3
1
LGND -d
D30 
4148
45 80 M
R18
D
TR6
BC 327
PH ANTO M SW & LED
SW 1 0A
PBA/6PC
2
LGND -d
R313
11 0R
R289
100R
R297
C
20 0R
R305
402R 1%
+V-LED-d
11 
10
9 
8
7 
6
C221
47uF /25V
R329 
10 0K
C289 
100uF/50V
R321 
36 K
R399 
100K
LGND -d
B
A
GND-d
GND-d
R455 
100R
C291
100uF/50V
+48V-d
6 
5
LGND -d
CH5-METER 
CH5-48V-d
GND-d
TR56 
BC337
41 48
D27
R458 
100R
R456
10K
4580 M
+48V-d
R352 
10K
U26B
U27D 
LM 339
U27C 
LM 339
U27B 
LM 339
LGND -d
7
TR57 
BC337
GND-d
1 
3
13
14
1
LGND -d
D28 
41 48
R459 
10K
R457
100K
C290 
100uF/50V
R360
22R 1/4W
GND-d
PH ANTO M5 SW
5
SW 1 0B 
PBA/6PC
GND-d
8 4
U26C
R19
680R 1/4W
LD 30
YEL
LD 31 
GR
(-20dB)
(0dB)
RED
(CLIP)
R361
22R 1/4W
LGND -d
C293
100uF/50V
+V-LED-d
LGND -d
LD 32 
YEL
LD 33
U29C
4580 M
8 4
D21 
4148
D22 
4148
R461 
100R
R28 
10 K
110R
10 0R
200R
402R 1%
R323 
36K
R401 
100K
+48V-d
R315
R291
R299
R307
TR58 
BC337
3 12
U27E
LM 339
LGND -d
+V-LED-d
6 
5
LGND -d
CH7-METER 
CH7-48V-d
GND-d
R462 
10K
BC 327
PH ANTO M SW & LED
SW 1 4A
PBA/6PC
2
U30D
11
LM 339
10
U30C
9
LM 339
8
U30B
7
LM 339
6
C223
47uF /25V
R354 
10K
LGND -d
R331 
100K
7
U29B
4580 M
D31
4148
100K
C294 
100uF/50V
GND-d
3 12
U28E 
LM 339
U30E
LM 339
TR8
R463
3 12
1 
3
13
14
1
LGND -d
D32 
4148
PH ANTOM7 SW
5
SW 1 4B 
PBA/6PC
U31E 
LM 339
R20
R362
22R 1/4W
3 12
+V-LED-d
680R 1/4W
LD 34
YEL
LD 35 
GR
(-20dB)
LD 36 
YEL
(0dB)
LD 37
RED
(CLIP)
LGND -d
LGND -d
4 
6
D23 
4148
D24 
4148
R31 
10K
GND-d 
+48V-d
+V-IC
-V-IC
11 0R
100R
20 0R
402R 1%
R324 
36 K
R402 
100K
GND-d
R316
R292
R300
R308
LGND-d
+V-LED-d
2 
3
LGND -d
CH8-M ETER
CH8-48V-d
+48V-d
+V-LED-d
LGND -d
-V-LED-d
PH ANTO M SW & LED
SW 1 6A 
PBA/6PC
2
U31D
11
LM 339
10
9 
8
7 
6
C224
47 uF/25V
R355 
10K
R332 
100 K
U29A
4580 M
D33
41 48
CN14
10P-2.5
C295
100uF/50V
GND-d
TR9
BC 327
U31C 
LM 339
U31B 
LM 339
LGND-d
1
1 
2 
3 
4 
5 
6 
7 
8 
9 
10
13
14
1 
3
1
LGND -d
D34 
41 48
R464 
100R
R21
R363
22R 1/4W
+48V-d
+V-LED-d
680R 1/4W
LD 38 
YEL
LD 39 
GR
(-20dB)
LD 40 
YEL
(0d B)
LD 41
RED
(CLIP)
TR59 
BC337
LGND -d
D25 
41 48
D26 
41 48
R465
10K
MP8-DISPLA Y (2/2)
R32 
10K
GND-d
R467 
100K
C296 
100uF/50V
R8 
33 0R
R9 
33 0R
R10 
33 0R
R11 
33 0R
R12 
33 0R
PH ANTO M8 SW
5
SW 1 6B 
PBA/6PC
EXT_WCLK
SW 1 8A
1 
3
SW SPST-0204
WCLK_SEL
4 
6
44.1KHz
LD 42 GR
48KHz
LD 43 GR
x2
LD 44 G R
x4
LD 45 G R
SAMPLE_SEL
2
CN15 
9P-2.5
4
CN12 
4P-2.5
TO MAIN BOARD
GND-d 
+48V-d
l 
TO DI GI-OUT BOAR D
123
R1 
560R
R2 
560R
R3 
560R
R4 
560R
R5 
560R
R6 
560R
R7 
560R
123456789
D
C
B
A
1  2  3  4  5  6  78
 
Page 16
7 6 5 4 3 2 1
8
16 8
U10B
74HC153
OPT1
1 
2 
3
CON3
ADAP_OUT
GND
GND
GND
GND
R65  10M
X2 22.5792MHz
C64 
18P
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12
GND GND
VDD
GND
+3.3V
U11F 
74HC04
VDD
GND
C44 
100N
C61 
18P
C25
VDD
100N
GND  GND
GND
VDD
33
TXP1
32
TXN1
31
TXP2
30
TXN2
29
VSS
28
VDD
27
TXP3
26
TXN3
25
TXP4
24
TXN4
23
CKS1
GND
R18 4K7 
R19 4K7
GND
12 13
GND GND
11 
10
9
1 
2 
3 
4 
5 
6 
7 
8 
9
10
VDD
35
34
37
DIF0
DIF136DIF2
VDD
22
GND
U9
1
P0.0
2
P1.7
3
P1.6
4
P1.5/RST
5
Vss
6
P3.1/X1
7
P3.0/X2
8
P1.4/INT1
9
P1.3/SDA 
P1.2/SCL/T010P1.1/RX
P89LPC921
U6B
CLK
Q0 
Q1 
Q2 
Q38MR
74HC393
U5 
AL1401A
GND 
NC 
NC 
WDCLK 
RST 
WDCLKNEG 
FMT0 
FMT1 
FMT2 
FMT3
U138U239U340U4
U7
AK4010A
15 
14 
13 
12 
11 
10
41
P0.1/KB1 
P0.2/KB2 
P0.3/KB3
P0.4KB4
P0.5/KB5 
P0.6/KB6
P0.7/KB7
P1.0/TX
U10A
2E 
S0 
2I3 
2I2 
2I1 
2I0 
2Y91Y
74HC153
13
12
V1242V34
43
VDD
1E
S1 
1I3 
1I2 
1I1 
1I0
OPDIGOUT
44
GND
PDN
TRANS
MCLK
SDTI1 
SDTI2 
SDTI3 
SDTI4
VDD
BICK
LRCK
CSN
CDTI12CCLK13CDTO14C115C216C317C418ANS19BLS20CKS021VSS
3 
4 
5
VDD
USER3 
USER2 
USER1 
USER0
IN7 8 
IN5 6 
IN3 4 
IN1 2
VSS
20 
19 
18 
17 
16 
15 
14 
13 
12 
11
1 
2 
3 
4 
5 
6 
7
U6A
Q0 
Q1 
Q2 
Q36MR
74HC393
GND
GND GND
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11
CLK
20 
19 
18 
17 
16 
15 
14 
13 
12 
11
VDD
GND
+3.3V
MP 8-Dig italoutV1
VDD
C87
100N
GND
SDOUT3 
SDOUT2 
SDOUT1 
SDOUT0
RST
+3.3V
TX 
RX 
RESET
SYN_SEL
MCLK _SE L
WCLK_OUT
1
2
GND GND
LRCK
SYSCLK 
SDOUT0 
SDOUT1 
SDOUT2 
SDOUT3
BCLK 
LRCK
GND
SEL_M0 
SEL_M1
MCLK_SEL 
SYN_SEL 
SEL_MDIV 
RST
CN8
5 
4 
3 
2 
1
HEADER 5
LRCK
SYSCLK
WCLK_IN
C50 
100N
RST 
SYSCLK 
BCLK 
LRCK 
SDOUT0 
SDOUT1 
SDOUT2 
SDOUT3 
SEL_MDIV 
SEL_M1 
SEL_M0 
WCLK_OUT 
WCLK_IN
+3.3V
OUT
VDD
10 
11 
12 
13 
14 
15 
16
GND
U12 
LM1117-3.3
CN2
1 
2 
3 
4 
5 
6 
7 
8 
9
HEADER 8*2
G
GND
VDD
IN
D
C
B
A
VDD
C45
14 7
100N
U11G
GND
74HC04
D
GND  GND
4  3
J1
C
B
A
1 
6 
2 
7
4  3
3 
8 
4 
9 
5
DB9
CN3
CON9
4  3
4  3
VDD
1
EXT_WCLK
2
44.1KHz
3
48KHz
4
x2
5
x4
6
SAMPLE_SEL
7
WCLK_SEL
8 
9
GND
GND
GND
74HC393
1 2
C30 
100N
TF1 
LT-0806M
1 2
C31 
100N
TF2 
LT-0806M
1 2
C32 
100N
TF3 
LT-0806M
1 2
C33 
100N
TF4 
LT-0806M
U11E 
74HC04
10 11
R26  10M
X1 24. 5 76MHz
C60
C63
18P
18P
VDD  VDD
U8
24
VDD
23
LINMODE
22
MUTE
21
ERROR
20
HOLDEER
19
C42
OPDIGTHRU
18
100N
DVCO
17
USER3
16
USER2
15
USER1
14
USER0
13
OUT78
AL1402
C43
14 7
100N
U6C
GND
R67  330R
R71  100R
5  6
J2
3  4
3X2
1  2
R43  56R
R68  330R
R72  100R
5  6
J3
3  4
3X2
1  2
R44  56R
R69  330R
R73  100R
5  6
J4
3  4
3X2
1  2
R45  56R
R70  330R
R74  100R
5  6
J5
3  4
3X2
1  2
R46  56R
GND GND
VDD
GND
GND
MODE0
FMT0 
FMT1
MODE1
OPDIGIN
SVCO
WDCLK
BCLK 
OUT12 
OUT34 
OUT56
1  2  3  4  5  6  78
 
Page 17
7 6 5 4 3 2 1
8
VCC
C49
8 4
100N
AGND
U18C
4580M
D
AGND
U1A
VDD
D6
4148
GND
GND
GND
GND
CS5361
1
RST 
MCLK 
SCLK 
LRCK 
SDOUT
MDIV 
M1 
M0 
HPF 
M/S 
I2S/L J 
OVFL
U2A 
CS5361
RST 
MCLK 
SCLK 
LRCK 
SDOUT
MDIV 
M1 
M0 
HPF 
M/S 
I2S/L J 
OVFL
U3A 
CS5361
RST 
MCLK 
SCLK 
LRCK 
SDOUT
MDIV 
M1 
M0 
HPF 
M/S 
I2S/L J 
OVFL
U4A 
CS5361
RST 
MCLK 
SCLK 
LRCK 
SDOUT
MDIV 
M1 
M0 
HPF 
M/S 
I2S/L J 
OVFL
R83 
100R
AINL-
AINL+
VO
AINR+
AINR-
AINL-
AINL+
VO
AINR+
AINR-
AINL-
AINL+
VO
AINR+
AINR-
AINL-
AINL+
VO
AINR+
AINR-
GND
5 
4 
3 
9
10 
14 
13 
11
2 
12 
15
1
5
4
3
9 
10
14 
13 
11
2 
12 
15
1
5
4
3
9 
10
14 
13 
11
2 
12 
15
1
5
4
3
9 
10
14 
13 
11
2 
12 
15
RST 
SYSCLK 
BCLK 
LRCK 
SDOUT0
SEL_MDIV 
SEL_M1
VDD
CN5
RST
1
SYSCLK
2
BCLK
3 
4
LRCK 
SDOUT0
5 
6
SDOUT1 
SDOUT2
7
SDOUT3
8 
9
SEL_MDIV 
SEL_M1
10 
11
SEL_M0
12
WCLK_OUT
13
WCLK_IN
14
HEADER 8* 2
15 
16
GND
C
B
A
SEL_M0
RST 
SYSCLK 
BCLK 
LRCK 
SDOUT1
SEL_MDIV 
SEL_M1 
SEL_M0
RST 
SYSCLK 
BCLK 
LRCK 
SDOUT2
SEL_MDIV 
SEL_M1 
SEL_M0
RST 
SYSCLK 
BCLK 
LRCK 
SDOUT3
SEL_MDIV 
SEL_M1 
SEL_M0
WCLK_OUT 
WCLK_IN
VDD
R3 
100R
R4 
100R
R5 
100R
R6 
100R
R7 
100R
R8 
100R
R14 
100R
R15 
100R
R16 
100R
R17 
100R
R21 
100R
R22 
100R
R34 
100R
R35 
100R
R36 
100R
R37 
100R
1
U14A 
4580M
U15B 
4580M
7
1
U16A 
4580M
U17B 
4580M
7
1
U18A 
4580M
U19B 
4580M
7
1
U20A 
4580M
U21B 
4580M
7
MICO UTP UT
MICOU TPU T
L1 
DLM 21A102SPT
GND
C57  22P
R9  5K1
R11  5K1
C62  22P
C66  22P
R10  5K1
R24  5K1
C69  22P
C70  22P
R23  5K1
R33  5K1
C71  22P
C72  22P
R38  5K1
R41  5K1
C77  22P
CN4
1 
2
CN6
1 
2
17
C34 
10N
16
22
21
C35 
10N
20
17
C36 
10N
16
22
21
C37 
10N
20
17
C38 
10N
16
22
21
C39
20
10N
17
C40 
10N
16
22
21
C41
20
10N
C65
R81
R82
100N
100K
1M
GND
8 4
U19C
4580M
AGND
WCLK_OUT
WCLK_IN
VCC
AGND
R49
2
5K1
3
5
R50
6
5K1
R53
2
5K1
3
5
R54
6
5K1
R57
2
5K1
3
5
R58
6
5K1
R61
2
5K1
3
5
R62
6
5K1
100N
VCC
C52
U20C
4580M
AGND
8 4
AGND
C79
10uF/16V
C80
10uF/16V
C81
10uF/16V
C82
10uF/16V
C83
10uF/16V
C84
10uF/16V
C85
10uF/16V
C86
10uF/16V
7
U15A 
4580M
1
7
U16B 
4580M
U17A 
4580M
1
7
U18B 
4580M
U19A 
4580M
1
7
U20B 
4580M
U21A 
4580M
1
C54
100N
C58  22P
R2  5K1
U14B 
4580M
R12  5K1
C67  22P
C68  22P
R13  5K1
R25  5K1
C73  22P
C74  22P
R32  5K1
R39  5K1
C75  22P
C76  22P
R40  5K1
R42  5K1
C78  22P
U21C
4580M
AGND
VCC
C56
8 4
100N
AGND
R48
6
5K1
5
3
R51
2
5K1
R52
6
5K1
5
3
R55
2
5K1
R56
6
5K1
5
3
R59
2
5K1
R60
6
5K1
5
3
R563
2
5K1
C26
2u2F
C27
2u2F
C28
2u2F
C29
2u2F
U14C
4580M
AGND
VCC
C48
8 4
100N
AGND
AGND
AGND
AGND
AGND
U15C
4580M
AGND
VCC
8 4
AGND
C51
100N
U16C
4580M
AGND
8 4
C1
100N
C4
100N
C7
100N
C10
100N
VCC
C53
8 4
100N
AGND
U17C
4580M
AGND
VDD
8 7619
U1B 
CS5361
C13
2u2F
VDD
C16
2u2F
VDD
C19
2u2F
VDD
C22
2u2F
VDD
GND  AGND
GND
8 7619
U2B 
CS5361
GND
8 7619
U3B 
CS5361
GND
8 7619
U4B 
CS5361
GND
R1 
10R
C47
L2
2u2F
DLM21A10 2SPT
18
18
18
18
VCC
AGND
VCC
C55
100N
MP8-DigitaloutV2
D
CN7
1 
2 
3 
4 
5 
6 
7 
8 
9
10
CN-HD5X2
AGND
VCC
24
C
C2
C15
C14
23
AGND
100NC3100N
2u2F
2u2F
VCC
24
C5
C18
C17
23
AGND
100NC6100N
2u2F
2u2F
VCC
24
C8
C21
C20
23
AGND
100NC9100N
2u2F
2u2F
VCC
24
B
C11
C12
C24
C23
23
AGND
100N
100N
2u2F
2u2F
CN1
OUT
1 
2
C46 
2u2F
CON2
A
1  2  3  4  5  6  78
 
Page 18
BOTTOMLAYER
VER050716
BOTTOMSOLDER
 
Page 19
TOPLAYER
VER050716
TOPOVERLAY
 
Page 20
TOPSOLDER
VER050716
DRILLDRAWING
 
Page 21
 VER051004 
BOTTOMLAYER
 
Page 22
 VER051004 
BOTTOMSOLDER
 
Page 23
 VER051004 
TOPLAYER
 
Page 24
 VER051004 
TOPOVERLAY
 
Page 25
 VER051004 
TOPSOLDER
 
Page 26
 VER051004 
DRILLDRAWING
 
Page 27
 VER050406 
BOTTOMLAYER
BOTTOMOVERLAY
BOTTOMSOLDER
TOPLAYER
TOPSOLDER
DRILLDRAWING
 
Page 28
BOTTOMLAYER
 VER0504061 
TOPSOLDER
TOPLAYER
DRILLDRAWING
BOTTOMSOLDER
TOPOVERLAY
 
Page 29
BOTTOMLAYER
 VER051004 
BOTTOMSOLDER
 
Page 30
TOPLAYER
 VER051004 
TOPOVERLAY
 
Page 31
TOPSOLDER
 VER051004 
DRILLDRAWING
 
Page 32
VER05913
BOTTOMLAYER
BOTTOMSOLDER
TOPLAYER
TOPOVERLAY
 
Page 33
TOPSOLDER
VER05913
DRILLDRAWING
 
Page 34
7. Exploded Views & Mechanical Parts List
 
Page 35
Part List  
Mechanical Parts List 
No. Item NO.   Item Description   Specification   pcs
1 MA01119 front  panel   
MP8 ALTO_V1.0 
1 
2 MJ01100 Identification  mark   ALTO_V1.0   1 
3 MG00538 Ni-screw  hexagon(inner)   M3*10*0.5PH_V1.0   5 
4 NC00098 wooden  washer 
5 NI03076 plastic  washer 
1.5*φ 11.3*φ 16 black 
1.5*φ 9.5*φ 16 black 
2 
2 
6 ME00139 Ni-plated  nut   2*φ11.3 * φ 6.3 2 
7 NI03386 fixed  sleeve   ACL2 φ15*10 C68#_V1.0   8  
8 MH01993 Al-knob 
φ 21*18.2mm(18 teeth) MP8_V1.4 
8 
9 NI03246 lens  key   8.5*4.5*29_V1.0   16 
10   MB04001 rear bottom board   MP8D_V1.0   1 
11   HI00302   power supply switch   4P R9D2KK2RT00F1   1 
12 HK05327 K-PC  board   P-MP2DISP2-DIP   1 
13 MG00245 Copper  pillar   M3*15*0.5PH   8 
14 NC00710 insulated  board   MP8D 1t*50.5*393_V1.1   1 
15 MG00585 Copper  pillar   M3*11*0.5PH   4 
16 HK05330 K-PC  board   P-MP8DISP-DIP   1 
17 MG00238 Copper  pillar   M3*6*0.5PH   2 
18   MG00041 Black-plated screw - pill   M3*6    13 
19 HK05333 K-PC  board   P-MP8INOUT   1 
20   MG00160 Ni screw-pill   M3*6 P0.5   6 
21 MF00037 spring  washer 
φ 3*φ5*1t  
4 
22 NI00863 Insulation  bean   TO220B   4 
23   NC00005 Silicon insulation piece   TO-220 square   4 
24 MI02707 heat  sink 
MP8 5*34.5*16.5*110 0.09kg_V1.0 
1 
25 MG00061 Black-plated  screw-pill-iron M3*10   17 
26   ME00060 MIC socket nut   hexagon JY-6351G-02-250 8 
27   MF00061 Washer for T-MIC socket   JY-6351G-02-250    8 
28 MG00025 
Black-plated screw-cross-head pan head 
M3*6 11 
29 MC00705 Top  cover   MP8_V1.0   1 
30      BNC socket washer 
31      BNC socket nut 
32 HC00008 AC  socket 
circle CH-7044 90° PCB format 
hexagon CH-7044 90° PCB format 
3515 A TYPE(RF-2004-C-4.8) 
2 
2 
1 
33 HK05335 K-PC  board    P-MP8DIGI-V1-DIP 1 
 
Page 36
34 HK05337 K-PC  board    P-MP8DIGI-V2-DIP 1 
35 ME00016 color  nut   4mm   2 
36 MF00038 Spring  washer 
37 MF00048 out  sharp  washer 
38 MF00019 color  washer 
φ4* φ7*1t    
φ4* φ8*0.5t    
φ4* φ12*1t   
2 
1 
2 
39 TD00492 loop  transformer   PT-MP8D_115V/230V   1 
40 NI00443 rubber  coil 
41   MG00111 color screw - pill 
φ 20*φ60*2tB  
M4*30 
1 
1 
42 NI00501 Self-adhesive  cushion 12.7*9*3t(SF-004)   4 
43 MG00326 Black-plated  screw-pill   M3*4   2 
 
Page 37
No. Part No.   Description   Specification   Remark 
1 
MA01118 panel   MP8D ALTO_V1.2 
2 
MA01097 panel   MP8D 
3 
MA05786 panel   MP8D 6*44.2*483_V1.0 
4 
MA01091 panel   MP8D 6t*44.2*483_V1.1 
5 
MI03149   panel   6t*44.4*1M +5 (1M/0.73kg)_V1.0 
6 
MB04001 chassis   MP8D 210-240V~50/60Hz _V1.6 
7 
MB03999 chassis   MP8D 
8 
MB03998 chassis   42.5*280*442_V1.0 
9 
ME00001 screw pillar   M4*10*0.7PH 
10 
ME00032 iron pillar   hexagon6.35*M3*5.2 
11 
MJ00061 iron  board   1*2135*1220  20.45kg 
12 
MC00705 top cover   MP8_V1.1 
13 
MC00703 top cover   MP8 
14 
MC00702 top cover   1.2t*280*442_V1.1 
15 
MJ00063   iron board   1.2*2135*1220 24.54kg 
16 
NI00501 
17 
HC00008   AC socket   3515 A TYPE(RF-2004-C-4.8) 
18 
HD00006   glass tube fuse 
19 
HI00302   power switch-RS   4P A323P160C0 16A 240V 2POLE 
20 
TD00492 transformer   PT-MP8D_115/230V 
21 
NI00252 sleeve   φ4*20mm  
22 
NI00248 sleeve   φ4*1000mm  
23 
NC00710   black foil white board MP8  1t*50.5*393_V1.1 
24 
NC00148   black foil white board 1.0t*80mm(+0.1)*120M 
25 
MH01993 AL-trim pot   φ 21*18.2mm MP8_V1.5 
26 
MJ01100 label   ALTO_V1.0 
27 
MG00042 screw   M3*10 
28 
MG00338 screw   M4*30mm 
29 
ME00016 color nut   4m/m 
30 
NI00443 rubber  coil   φ20*φ60*2tB  
31 
MF00019 washer   φ4*φ12*1t_V1.0  
32 
MF00106 washer   φ4*φ12*1t_V1.0  
33 
MJ00058   single light board   1*2135*1220 20.45kg 
34 
MF00048 washer   φ4*φ8*0.5t  
35 
MF00038 washer   φ4*φ7*1t  
36 
MG00041 screw   M3*6 
37 
ME00015 color nut   3m/m 
38 
MG00363 copper pillar   M3*14*0.5PH 
39 
MG00512 copper pillar   M3*12.5*0.5PH_V1.0 
40 
MG00061 screw   M3*10 
41 
ME00060 MIC jack   JY-6351G-02-250 
42 
MF00061 MIC  jack   φ9.6*φ13*0.5t  
self-adhere foot cushion 
12.7*9*3t(SF-004) 
315mA 250V φ 5.2*20mm CSA/S/UL/VDE 
 
Page 38
No. Part No.   Description   Specification   Remark 
43 
ME00139 nut   2*φ11.3*φ6.3  
44 
MG00538 screw   M3*10*0.5PH_V1.0 
45 
HA01333 
46 
HA00262   wire   300mm black L5R10 
47 
HA04256 wire-RS 
48 
HA04255 wire-RS 
49 
HA04262   wire-RS   9P-9P 230mm UL1007 28AWG 
50 
HA04283 wire-RS 
51 
HA04282 wire-RS 
52 
HA04285 wire-RS 
53 
HA04284 wire-RS 
54 
NI00218 cable  tie   ALT-102SB 
55 
NI01627 fixed  bracket   CM-19S 
56 
HA00861   power cord Europe 3P LT-312+LT-501 
57 
NA00137 clip-chain  bag   5*7 
58 
NA00279 clip-chain  bag   0.04t*100*150mm_V1.0 
59 
HJ00006 dessicant   30g 
60 
NF02206   user manual English   MP8D ALTO_V1.1 
61 
NH00149 paper   889*640mm 
62 
NB03663   gift carton   MP8D ALTO_V1.0 
63 
NB02088   carton   (1H) ALTO 19"used to series 
64 
NF00061 assurance  card   ALTO 
65 
NE14058 label   MP8D_V1.0 
66 
NI00014 membrane   0.035*1M 
67 
NH00012 bond  paper   0.04*1M 
68 
NE05004 label   ALTO 
69 
NH00334 cone  paper   0.040*1m 
70 
AD00012 twin  adhesive   90*120mm_V1.0 
71 
HK06259 PC  board   P-MP2PWR-DIP 
72 
SA00167   bridge rectifier   2A W2-04   D1,D2,D4 
73 
HC00177   connector(male)   5P 3.96mm 180°   CN1 
74 
HC00081   connector(male)   7P 2.5mm 180°   CN3 
75 
CB00217 electrolytic  capacitor 470uF/50V φ10*20mm C19  
76 
CB00080 electrolytic  capacitor 2200uF/25V φ16*25mm C2,C7,C20  
77 
CB00052 electrolytic  capacitor 100uF/100V φ13*21mm C6,C12  
78 
CB00061 electrolytic  capacitor 220uF/100V φ13*26mm C14  
79 
RA00012 
80 
SD00032 integrated  circuit   LM317T   U1,U3,U4 
81 
SD00033 integrated  circuit   LM337SP(1.5A)(TO-220) U2 
82 
MI02707   heat-sink   MP8 5*34.5*16.5*110 0.09kg_V1.0 
83 
MI03116 heat-sink 
84 
MG00162 screw   M3*8 
single terminal wiring CF:W76 
metal-oxide-film resistor 1W 
150mm UL1015 18AWG green/yellow 
6P-6P 230mm UL1007 28AWG  red/white 
6P-6P 50mm UL1007 28AWG red/white   
4P-4P 50mm UL1007 28AWG red/white 
2P-2P 240mm UL1007 24AWG red/.black 
7P-7P 100mm UL1007 24AWG red/white 
10P-10P 50mm UL1007 28AWG red/white 
120Ω P type   R8  
5T*34.5*16.5*1M+5(1M/0.9KG)_V 1.0 
 
Page 39
No. Part No.   Description   Specification   Remark 
85 
MG00041 screw   M3*6 
86 
MF00037 washer   φ3.2*φ5.5*1t  
87 
NC00005 mica   SB-9500DSP 18*13*0.1t_V1.0 
88 
NI00863 plastic  washer   TO220B 
89 
HC00076   connector(male)   2P 2.5mm 180°   CN2 
90 
RA00157 fixed  resistor  1/4W   0.0Ω  R1,R13,R14,R16 
91 
RA01492   precise resistor 1/4W   8.2KΩ  R18 
92 
CF00140 
93 
CB00234 electrolytic  capacitor 10uF/50V φ6*7mm C8,C9,C10  
94 
CB00254 electrolytic  capacitor 47uF/100V φ10*12mm 5mm   C16,C17  
95 
AC00179   tin without lead   M705E Sn 3Ag-0.5Cu 
96 
HK06260 PC  board   P-MP2PWR-SMD 
97 
HB01881 PCB-RS   MP2DPWR_VER050913 
98 
RD00424 
99 
RD00073 
100 
RD00089 
101 
RD00080 
102 
SE00011 SMD  rectifier  diode   RLS4148 0.5A (LL-34)   D3 
103 
AE00449 
104 
RA00114 fixed  resistor  1/2W   100Ω  R12 
105 
HK05327 PC  board   P-MP8MAIN-DIP 
106 
HC00081   connector(male)   7P 2.5mm 180°   CN23 
107 
HC00084   connector(male)   10P 2.5mm 180°   CN13 
108 
HC00078   connector(male)   4P 2.5mm 180°   CN11 
109 
HC00080   connector(male)   6P 2.5mm 180° 
110 
HC00504 connector(male)   10P  2.54mm 180°   CN2,CN3,CN4 
111 
HC00758 connector(male)   12P  2.54mm 180°   CN1 
112 
HI00039 push-button  switch SP70300F-0202-11F1-N 
113 
HI00008 relay   RY-12W-K  12V   RL1,RL2 
114 
HI00056 push-button  switch 
115 
CB00042 electrolytic  capacitor 
116 
AC00179   tin without lead   M705E Sn 3Ag-0.5Cu 
117 
HK05328 PC  board   P-MP8MAIN-AI 
118 
RA01263 fixed  resistor  1/4W   220Ω  R13,R433 
119 
CB00238 electrolytic  capacitor 0.22uF/50V φ5*11mm  
120 
CB00255 electrolytic  capacitor 1000uF/10V φ8*11mm 5mm  
121 
SB00175 transistor   2SA970-BL(TE2;T) 
metal-film capacitor MSC 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
solder material without lead 
0.1uF/63V 5% CASE01 
180KΩ  ±5% 0603   R9 
220Ω  ±5% 0603   R2,R3,R5,R17,R19 
2.7KΩ  ±5% 0603   R10,R11 
680Ω  ±5% 0603   R15 
9308/Sn Ag Cu 
SP70300-0202-11F1-N-N(NON-LOCK) 
47uF/63V 105℃  LZ φ8*11mm  
C1,C3,C4,C5,C11,C13,C15,C18 
CN5,CN6,CN7,CN18,CN19,CN20,CN21 
SW1,SW3,SW5,SW7,SW9,SW11 
,SW13,SW15 
SW17 
C1,C2,C3,C4,C5,C6,C7,C8,C9,C 
10,C11,C12,C13,C14,C15,C16 
C48,C49,C50,C51,C52,C53,C 
54,C55,C56,C57,C58,C59,C6 
0,C61,C62,C63,C64,C65,C66, 
C67,C68,C69,C70,C71 
C31,C32,C34,C35,C36,C37,C38, 
C39 
TR10,TR11,TR12,TR13,TR14,TR 
15,TR16,TR17,TR18,TR19,TR20 
,TR21,TR22,TR23,TR24,TR25 
 
Page 40
No. Part No.   Description   Specification   Remark 
C72,C73,C74,C75,C76,C77,C78, 
C79,C80,C81,C82,C83,C84,C85,
122 
CB00194 electrolytic  capacitor 47uF/25V φ5*11mm  
123 
RA01262   precise resistor 1/4W   6.81KΩ  
124 
SB00059 transistor   BC327-25   TR1 
125 
HK05329 PC  board   P-MP8MAIN-SMD 
126 
HB01500 PCB   MP8MAIN_VER051004 
127 
CI00075 
128 
RD00101 
129 
RD00214 
130 
CI00071 
131 
RD00083 
132 
RD00351 
133 
RD00201 
134 
CI00065 
135 
SE00011 SMD  rectifier  diode   RLS4148 0.5A (LL-34) 
136 
RD00306 
137 
RD00219 
138 
CI00054 
139 
RD00204 
SMD ceramic capacitor 0603 
SMD fixed resistor 1/10W 
SMD precise resistor 1/10W 
SMD ceramic capacitor 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD precise resistor 1/10W 
SMD ceramic capacitor 0603 
SMD fixed resistor 1/10W 
SMD precise resistor 1/10W 
SMD ceramic capacitor 0603 
SMD precise resistor 1/10W 
0.1uF/50V Y5V +80,-20% 
10KΩ  ±5% 0603 
10.0KΩ  ±1% 0603 
0.01uF/50V X7R ±10% 
1.0KΩ  ±5% 0603   R431,R438 
1.3KΩ  ±5% 0603 
1.50KΩ  ±1% 0603 
0.001uF/50V X7R ±10% 
20KΩ  ±5% 0603 
20.0KΩ  ±1% 0603 
39PF/50V C0G±5%(C1608C0G1H390JT)/TDK 
2.49KΩ  ±1% 0603 
C86,C87,C88,C89,C90,C91,C92, 
C93,C94,C95,C266,C267,C271, 
C272,C273,C274,C278 
R57,R58,R59,R60,R61,R62,R63, 
R64,R65,R66,R67,R68,R69,R70, 
R71,R72 
C112,C113,C114,C115,C116,C1 
17,C118,C119,C120,C121,C122, 
C123,C124,C125,C126,C127,C1 
28,C129,C130,C131,C132,C133, 
C134,C135,C136,C137,C138,C1 
39,C140,C141,C142,C143,C268, 
C269,C275,C276,C279,C280 
R22,R427,R428,R434,R435 
R225,R226,R227,R228,R229,R230, 
R231,R232,R233,R234,R235,R236, 
R237,R238,R239,R240 
C19,C20,C23,C24,C150,C1
R241,R242,R243,R244,R245, 
R246,R247,R248 
R77,R78,R79,R80,R81,R82,R83, 
R84,R85,R86,R87,R88,R89,R90, 
R91,R92 
C27,C28,C29,C30,C186,C187,C 
188,C189,C190,C191,C192,C19 
3,C194,C195,C196,C197 
D1,D2,D48,D49,D50,D51,D52,D5 
3,D54,D55,D56,D57,D58,D59,D6 
0,D61,D64,D65,D66,D67,D68,D6 
9,D70,D71,D72,D73,D74,D75,D7 
6,D77,D78,D79,D80,D81,D82,D8 
3,D86,D87,D88,D89 
R94,R95,R97,R98,R100,R102,R103, 
R105,R106,R107,R109,R111,R112, 
R114,R115,R116,R432,R439 
R93,R96,R99,R101,R104,R108, 
R113,R110 
C40,C41,C42,C43,C44,C45,C46,C47 
,C162,C163,C164,C165,C166,C167, 
C168,C169,C170,C171,C172,C173, 
C174,C175,C176,C177,C178,C179, 
C180,C181,C182,C183,C184,C185 
R117,R118,R119,R120,R121,R122, 
R123,R124,R125,R126,R127,R128, 
R129,R130,R131,R132,R133,R134, 
R135,R136,R137,R138,R139,R140, 
R141,R142,R143,R144,R145,R146, 
R147,R148,R149,R150,R151,R152, 
R153,R154,R155,R156,R157,R158, 
R159,R160,R161,R162,R163,R164, 
R165,R166,R167,R168,R169,R170, 
R171,R172 
 
Page 41
No. Part No.   Description   Specification   Remark 
140 
CI00062 
141 
SF00053 transistor   MMBT3906(SOT-23)/(PHI) 
142 
SG00122   SMD integrated circuit NJM4580M-TE3 
143 
RD00315 
144 
RD00298 
145 
RD00459 
146 RD00526   
147 RD00210   
148 RD00365   
149 
RD00113 
150 
RD00097 
151 
SE00028 SMD  rectifier  diode   BAS316,115 
152 
SE00004 SMD  L.E.D 
153 
AE00449 
154 
CI00267 
155 
RC00560 potentiometer-RS 
156 
HC00747   stereo MIC jack   φ 6.4 LJB0664-22-6   J1,J2 
157 
SB00062 transistor   BC337-25   TR50,TR51 
158 
HK05330 PC  board   P-MP8DISP-DIP 
159 
HC00067   connector(male)   4P 2.5mm 90°   CN12 
160 
HC00070   connector(male)   6P 2.5mm 90°   CN8,CN9,CN10 
161 
HC00083   connector(male)   9P 2.5mm 180°   CN15 
162 
SA00052 L.E.D   φ 3 round(green)long foot 26 
163 
HI00039 push-button  switch SP70300F-0202-11F1-N 
164 
SA00053 L.E.D   φ3 round(red)long foot 26mm  
165 
HI00056 push-button  switch 
166 
SA00054 L.E.D   3m/m  round(yellow)long foot 26 
167 
HC00074   connector(male)   10P 2.5mm 90°   CN14 
168 
CB00194 electrolytic  capacitor 47uF/25V φ5*11mm C297,C298  
169 
AC00179   tin without lead   M705E Sn 3Ag-0.5Cu 
170 
HK05331 PC  board   P-MP8DISP-AI 
171 
RA01111 fixed  resistor  1/4W   100KΩ  
172 
RA01115 fixed  resistor  1/4W   20KΩ  
SMD ceramic capacitor 0603 
SMD precise resistor 1/10W 
SMD precise resistor 1/10W 
SMD precise resistor 1/10W 
SMD fixed resistor 
SMD precise resistor 
SMD precise resistor 
SMD fixed resistor 
SMD fixed resistor 1/10W 
solder material without lead 
SMD ceramic capacitor-RS 0603 
330PF/50V NPO ±5﹪  
475Ω  ±1% 0603 
47.0Ω  ±1% 0603 
4.7Ω  ±1% 0603 
5.1MΩ  ±5% 0603   R429,R430,R436,R437 
5.11KΩ  ±1% 0603 
5.62KΩ  ±1% 0603   R73,R74,R75,R76 
62KΩ  ±5% 0603 
6.8KΩ  ±5% 0603 
yellow 67-21UYC/S530-A2/TR8 1210 
9308/Sn Ag Cu 
33PF/50V NPO ±5﹪  
C10KΩ  RV16AF-20-15K-10C10K-301 
SP70300-0202-11F1-N-N(NON-LOCK) 
C17,C18,C144,C145,C146,C147,C1 
48,C149 
TR26,TR27,TR28,TR29,TR30,TR 
31,TR32,TR33,TR34,TR35,TR36 
,TR37,TR38,TR39,TR40,TR41,T 
R42,TR43,TR44,TR45,TR46,TR4 
7,TR48,TR49 
U1,U2,U3,U4,U5,U6,U7,U8,U9,U10, 
U11,U12,U13,U14,U15,U16,U17 
R173,R174,R177,R178,R181,R1 
82,R183,R184,R185,R186,R187, 
R188,R189,R190,R191,R192 
R33,R34,R36,R37,R39,R40,R42, 
R43,R44,R46,R48,R49,R51,R52, 
R53,R54 
R35,R38,R41,R45,R47,R50,R55,R56 
R193,R194,R195,R196,R1
R277,R278,R279,R280,R2
R249,R250,R251,R252,R253,R2 
54,R255,R256 
D35,D36,D37,D38,D39,D40,D41,D42 
LD1,LD2,LD3,LD4,LD5,LD6,LD7, 
LD8,LD46 
C270,C277 
VR1,VR2,VR3,VR4,VR5,VR6,VR7,VR8 
LD11,LD15,LD19,LD23,LD27,LD31,L 
D35,LD39,LD42,LD43,LD44,LD45 
SW2,SW4,SW6,SW8,SW10,SW1 
2,SW14,SW16 
LD13,LD17,LD21,LD25,LD29,LD 
33,LD37,LD41 
SW18 
LD12,LD16,LD20,LD24,LD28,LD 
32,LD36,LD40 
R445,R448,R451,R454,R457,R4 
60,R463,R467 
R468,R469,R470,R471,R472,R4 
73,R474,R475 
 
Page 42
No. Part No.   Description   Specification   Remark 
173 
RA01112 fixed  resistor  1/4W   100Ω  
174 
CB00280 electrolytic  capacitor 100uF/50V φ8*11mm  
175 
RA01113 fixed  resistor  1/4W   10KΩ  
176 
RA01117 fixed  resistor  1/4W   22Ω  R30,R364 
177 
CB00194 electrolytic  capacitor 47uF/25V φ5*11mm  
178 
SB00059 transistor   BC327-25 
179 
HK05332 PC  board   P-MP8DISP-SMD 
180 
HB01661 PCB   MP8DISP_VER051004 
181 
RD00116 
182 
RD00349 
183 
CI00075 
184 
RD00101 
185 
RD00068 
186 
RD00100 
187 
RD00076 
188 
RD00353 
189 
SE00011 SMD  rectifier  diode   RLS4148 0.5A (LL-34) 
190 
SG00122   SMD integrated circuit NJM4580M-TE3 U20,U23,U26,U29 
191 
RD00079 
192 
SG00210   SMD integrated circuit LM339DT/(ST) 
193 
SE00004 SMD  L.E.D 
194 
AE00449 
195 
RD00097 
196 
RA01114 fixed  resistor  1/4W   2.2KΩ  
197 
RA01263 fixed  resistor  1/4W   220Ω  
198 
SB00062 transistor   BC337-25 
199 
HK05333 PC  board   P-MP8INOUT 
200 
HB01499 PCB   MP8INOUT_VER050716 
201 
HC00582   balance MIC jack   NCJ6FI-V (NEUTRIK)   J9,J10 
202 
RA01260 fixed  resistor  1/4W   120Ω  R1,R2,R3,R4,R5,R6,R7,R8 
203 
HA04263 wire-RS 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD ceramic capacitor 0603 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
solder material without lead 
SMD fixed resistor 1/10W 
100KΩ  ±5% 0603 
910Ω  ±5% 0603 
0.1uF/50V Y5V +80,-20%   C225 
10KΩ  ±5% 0603 
100Ω  ±5% 0603 
9.1KΩ  ±5% 0603 
330Ω  ±5% 0603   R8,R9,R10,R11,R12 
36KΩ  ±5% 0603 
560Ω  ±5% 0603   R1,R2,R3,R4,R5,R6,R7 
yellow 67-21UYC/S530-A2/TR8 1210 
9308/Sn Ag Cu 
6.8KΩ  ±5% 0603 
10P-10P 220mm UL2651 28AWG PH:1.27mm 
R443,R446,R449,R452,R455,R4 
58,R461,R464 
C281,C282,C283,C284,C285,C2 
86,C287,C288,C289,C290,C291, 
C292,C293,C294,C295,C296 
R444,R447,R450,R453,R456,R4 
59,R462,R465 
C217,C218,C219,C220,C221,C2 
22,C223,C224 
TR2,TR3,TR4,TR5,TR6,TR7,TR8,TR9 
R325,R326,R327,R328,R329,R3 
30,R331,R332,R395,R396,R397, 
R398,R399,R400,R401,R402 
R285,R286,R287,R288,R2 
89,R290,R291,R292 
R23,R24,R25,R26,R27,R28,R29, 
R31,R32,R349,R350,R351,R352, 
R353,R354,R355 
R309,R310,R311,R312,R313,R3 
14,R315,R316 
R293,R294,R295,R296,R297,R2 
98,R299,R300 
R317,R318,R319,R320,R321,R3 
22,R323,R324 
D3,D4,D5,D6,D7,D8,D9,D10,D11,D1 
2,D13,D14,D15,D16,D17,D18,D19,D 
20,D21,D22,D23,D24,D25,D26,D27, 
D28,D29,D30,D31,D32,D33,D34 
U21,U22,U24,U25,U27,U28,U30,U31 
LD10,LD14,LD18,LD22,LD26,LD 
30,LD34,LD38 
R301,R302,R303,R304,R305,R3 
06,R307,R308 
R356,R357,R358,R359,R360,R3 
61,R362,R363 
R14,R15,R16,R17,R18,R19,R20,R21 
TR52,TR53,TR54,TR55,TR56,TR 
57,TR58,TR59 
CN2,CN3 
 
Page 43
No. Part No.   Description   Specification   Remark 
204 
HA04261 wire-RS 
205 
HC00080   connector(male)   6P 2.5mm 180°   CN4,CN5,CN6,CN7 
206 
HC00126   balance MIC jack-RS   JY-5042-030G female plug 180°   J11,J12,J13,J14,J15,J16 
207 
HC00125 MIC  jack-RS   JY-6351G-02-250 J1,J2,J3,J4,J5,J6,J7,J8 
208 
AC00179   tin without lead   M705E Sn 3Ag-0.5Cu 
209 
HK05335 PC  board   P-MP8DIGI-V1-DIP 
210 
SC00403 crystal  oscillator   22.5792MHz   X2 
211 
SC00102   crystal oscillator   24.576MHZ HC-49/U1.2S±20PPM X1 
212 
HC00158 connector 
213 
HC00239 
214 
HC00151   connector   2.0 180° 5P(gold-plated) 3.8/8.5mm CN8 
215 
HC00499 connector 
216 
TB00018 transformer   LT-0806M(D/A  Data Transmission   TF1,TF2,TF3,TF4 
217 
AC00179   tin without lead   M705E Sn 3Ag-0.5Cu 
218 
HK05336 PC  board   P-MP8DIGI-V1-SMD 
219 
HB01614 PCB   MP8DIGI-V1_VER050406 
220 
CI00075 
221 
RD00068 
222 
RD00309 
223 
CI00050 
224 
RD00076 
225 
RD00093 
226 
RD00346 
227 
SG00067   SMD integrated circuit 74HC04DT   U11 
228 
SG00370 integrated  circuit   74HC153D-T(SO-16)/(PHI) U10 
229 
SG00070   SMD integrated circuit 74HC393DT   U6 
230 
SG00369 integrated  circuit   AK4101AVQ(LQFP)/(AKM) U7 
231 
SG00017   SMD integrated circuit AL1401A(SOIC20)/(ALEDSIS) U5 
232 
SG00018   SMD integrated circuit AL1402(SOIC)/(ALESIS) U8 
233 
SF00009 
234 
SG00356 integrated  circuit   P89LPC921FDH(TSSOP20)/(PHI) U9 
235 
AE00449 
236 
HC00034   short circuit connector NO.2700 2.54mm/6mm OPEN    
237 
HC00400 connector   D-SHB-9P 90° PCB R/A(7.2mm)   J1 
238 
HC00073   connector(male)   9P 2.5mm 90°   CN3 
239 
HK05337 PC  board   P-MP8DIGI-V2-DIP 
240 
HA02451 wire 
241 
HA04078 wire 
242 
HC00238   BNC wire   CH-7044 90° PCB   CN4,CN6 
243 
AC00179   tin without lead   M705E Sn 3Ag-0.5Cu 
244 
HK05338 PC  board   P-MP8DIGI-V2-SMD 
optical fiber transmission jack 
SMD ceramic capacitor 0603 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD ceramic capacitor 0603 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
voltage stabilized transistor 
solder material without lead
12P-12P 220mm UL2651 28AWG PH:1.27mm 
CN1 
2.54 180° 2*3P(gold-plated) 6/11.6mm 
J2,J3,J4,J5 
GP1FA513TZ(SHARP) OPT1 
2.54 180°2*8P(gold-plated) 6/11.6mm 
CN2 
0.1uF/50V Y5V +80,-20% 
C25,C30,C31,C32,C33,C42,C43, 
C44,C45,C50,C87 
100Ω  ±5% 0603   R71,R72,R73,R74 
10MΩ  ±5% 0603   R26,R65 
18PF/50V C0G±5%(C1608C0G1H180JT)/TDK 
C60,C61,C63,C64 
330Ω  ±5% 0603   R67,R68,R69,R70 
4.7KΩ  ±5% 0603   R18,R19 
56Ω  ±5% 0603   R43,R44,R45,R46 
LM1117MP-3.3 (3.3V, SOT223)   U12 
9308/Sn Ag Cu 
10P-10P 250mm UL2651 28AWG PH1.27mm 
16P-16P 50mm UL2651 28AWG PH1.27mm 
CN7 
CN5 
 
Page 44
No. Part No.   Description   Specification   Remark 
245 
HB01613 PCB   MP8DIGI-V2_VER050406 
246 
RD00116 
247 
CI00075 
248 
RD00068 
249 
CI00071 
250 
CJ00005 
251 
RD00125 
252 
CI00031 
253 
SE00011 SMD  rectifier  diode   RLS4148 0.5A (LL-34)   D6 
254 
SG00122   SMD integrated circuit NJM4580M-TE3 
255 
RD00355 
256 
SG00248   SMD integrated circuit 
257 
CO00006 SMD chip inductance   BLM21A102SPT/(MURATA) L1,L2 
258 
AE00449 
259 
RD00094 
260 
RD00101 
261 
CI00266 
262 
HC00076   connector(male)   2P 2.5mm 180°   CN1 
263 
NB04333 cardboard   MP8D_V1.0 
264 
NA00486   silk wadding   MP8D right_V1.0 
265 
NA00485   silk wadding   MP8D left_V1.0 
266 
MF00060 washer   φ7*φ12*0.5t  
267 
ME00052 nut   φ7  
268 
MG00050 screw   M3*8 
269 
MG00386 screw   M3*4 
270 
NI03076 plastic  washer   1.5*φ9.5*φ16  
271 
MG00038 screw   M3*6 
272 
NI03933   acrylic panel   MP8 ALTO_V1.0 
273 
NI03246 acrylic  panel   8.5*4.5*29_V1.0 
274 
MG00284 copper pillar   M3*8*0.5PH 
SMD fixed resistor 1/10W 
SMD ceramic capacitor 
0603 
SMD fixed resistor 1/10W 
SMD ceramic capacitor 0603 
SMD AL electrolytic capacitor 
SMD fixed resistor 1/10W 
SMD ceramic capacitor 0805 
SMD fixed resistor 1/10W 
solder material without lead 
SMD fixed resistor 1/10W 
SMD fixed resistor 1/10W 
SMD ceramic capacitor-RS 0603 
100KΩ  ±5% 0603   R81 
0.1uF/50V Y5V +80,-20% 
100Ω  ±5% 0603 
0.01uF/50V X7R ±10% 
10uF/16V CASE4φ  
1.0MΩ  ±5% 0603   R82 
2.2uF/16V Y5V-0805(2012) 
4.7Ω  ±5% 0603   R1 
CS5361-KZZ(TSSOP24)/(CRYSTAL) 
9308/Sn Ag Cu 
5.1KΩ  ±5% 0603 
10KΩ  ±5% 0603 
22PF/50V NPO ±5﹪  
C1,C2,C3,C4,C5,C6,C7,C8,C9,C 
10,C11,C12,C48,C49,C51,C52,C 
53,C54,C55,C56,C65 
R3,R4,R5,R6,R7,R8,R14,R15,R1 
6,R17,R21,R22,R34,R35,R36,R3 
7,R83 
C34,C35,C36,C37,C38,C39,C40,C41 
C79,C80,C81,C82,C83,C84,C85,C86 
C13,C14,C15,C16,C17,C18,C19, 
C20,C21,C22,C23,C24,C26,C27, 
C28,C29,C46,C47 
U14,U15,U16,U17,U18,U19,U20,U21 
U1,U2,U3,U4 
R2,R9,R10,R11,R12,R13,R23,R2 
4,R25,R32,R33,R38,R39,R40,R4 
1,R42,R49,R50,R53,R54,R57,R5 
8,R61,R62 
R48,R51,R52,R55,R56,R59,R60, 
R563 
C57,C58,C62,C66,C67,C68,C69, 
C70,C71,C72,C73,C74,C75,C76, 
C77,C78