Akai MPK Road 88 - Page 50

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D D C C B B A A
Check REV Description
Title:
Size
A3
Number Revision
Date :
File Name:
Sheet of
Design By :
DATEDesignApproval
R83 47.5KΩ
A+3.3V
AGND
AGND
R81 33.2KΩ
R84
4.75KΩ
R85
2.32KΩ
R82
82.5KΩ
R78 15.8KΩ
R80 1KΩ
R77 1KΩ
R76 100KΩ
BAV99
D9 BAV99 D10
A+3.3V
AGND
AGND
C82 0.1uF
R95 47.5KΩ
A+3.3V
AGND
AGND
R93 33.2KΩ
R96
4.75KΩ
R97
2.32KΩ
R94 82.5KΩ
R90 15.8KΩ
R92 1KΩ
R89 1KΩ
R88 100KΩ
BAV99
D12 BAV99 D13
A+3.3V
AGND
AGND
EXPRESSION 2
EXPRESSION 1
D+3.3V
C69 0.01uF
C70 0.01uF
C71 0.01uF
C72
0.01uF
C78 0.01uF
C79 0.01uF
C80 0.01uF
C81 0.01uF
C76 0.1uF
C68 0.1uF
C73 0.1uF
R62 1KΩ
R58 100KΩ
BAV99
D7
DGND
DGND
C59 0.1uF
C60 0.1uF
Sustain
A+3.3V
AGND
C87 0.1uF
1
2
3
4 5
6
7
8
J8 MIDI IN
1
2
3
45
6
7
8
J10
C64 100pF
C67 0.1uF
BAV99
D8
DGND
DGNDDGND
R74 220Ω
1 2 3
4
SEN1 LTV-356T-B
Q8
C66 0.1uF
R79 475Ω
R91 475Ω
R75 475Ω
D+3.3V
DGND DGND
MIDI IN MIDI OUT
BAV99 D11
DGND
DGNDDGND
R87 100Ω
R86 47Ω
D+3.3V
DGND
D+3.3V
EXPRESSION 1 EXPRESSION 2
C65 100pF
C74 100pF
C75 100pF
LMV324M
+
10
-
9
8
U8C
LMV324M
+
12
-
13
14
U8D
LMV324M
411
U8E
R73 10K
ἧ䓐
JKK6J80LAA12E2K
暞ẞ⹓炻Ữ㗗㕁嘇䁢
JK6K6J81ACF12
㕁ẞ㓡䁢
JK6K6J61A-AA-6
炻暞ẞ⹓ᶨ㧋䘬
R123 100Ω
R124 100KΩ
1000pF
C92
1000pF
C94
R125 100Ω
MUTE
AGND
2SD2704 Q9
2SD2704
Q10
AGND
AGND
R132 100Ω
R133 100KΩ 1000pF
C100
1000pF
C101
R134 100Ω
AGND
AGND
AGND
R159 100Ω
R160
100KΩ
1000pF
C114
1000pF
C115
R161 100Ω
AGND
2SD2704 Q13 2SD2704 Q14
AGND
AGND
R168 100Ω
R169 100KΩ
1000pF
C121
1000pF
C122
R170 100Ω
AGND
AGND
AGND
R136 1KΩ
R141 1KΩ
R171 1KΩ
R172 1KΩ
+
EC19 22uF,16V
+
EC24 22uF,16V
+
EC30 22uF,16V
+
EC13 22uF,16V
ἧ䓐
JKK6J80LAA12E2K
暞ẞ⹓炻Ữ㗗㕁嘇䁢
JK6K6J81ACF12
ἧ䓐
JKK6J80LAA12E2K
暞ẞ⹓炻Ữ㗗㕁嘇䁢
JK6K6J81ACF12
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
FCN1
MUTE_CONTROL
POWER DETECT
A+3.3V D+3.3V
+4VA
-4VA
DGNDAGND
MN OUT L MN OUT R
AUX OUT L AUX OUT R
OUTPUT1_L OUTPUT1_R OUTPUT2_L OUTPUT2_R
Sustain MIDI_OUT MIDI_IN
T TS R RS S SS S1
J6
Sustain
1 2 5 6 9 10
J9A EXPRESSION
3 4 7 8 11 12 13
J9B EXPRESSION
LMV324M
+
3
-
2
1
U8A
LMV324M
+
5
-
6
7
U8B
1 2 5 6 9
10
J14A
3 4 7 8
11 12 13
J14B
1 2 5 6 9
10
J13A
3 4 7 8
11 12 13
J13B
MUTE