Alesis VX 49, Service Manual

Page: 21 / 30

1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
UA_LM393DGKR
Title: VK_25Key.SchDoc
Sheet 2 of 2
Date: 2019/5/30
Reviewed: Reviewed
Revision: PCBRev
Project State: ProjectState
ProjectCode
Purpose: MainFunction
Location: PCBLocationInSystem
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
J2
HEAD8X2
RD_0
RD_1
RD_2
RD_3
RD_4
RD_5
RD_6
RD_7 SEL_0
SEL_1
SEL_2
SEL_3
SEL_4
SEL_5
SEL_6
SEL_7
1
2
3
SW1
KEY/PAD
1
2
3
SW2
KEY/PAD
1
2
3
SW3
KEY/PAD
1
2
3
SW4
KEY/PAD
1
2
3
SW5
KEY/PAD
D1 1N4148
D2 1N4148
D3 1N4148
D4 1N4148
D5 1N4148
D6 1N4148
D7 1N4148
D8 1N4148
D9 1N4148
D10 1N4148
RD_3
RD_4
RD_5
RD_6
RD_7
SEL_0
SEL_1
1
2
3
SW8
KEY/PAD
1
2
3
SW9
KEY/PAD
1
2
3
SW10
KEY/PAD
1
2
3
SW11
KEY/PAD
1
2
3
SW12
KEY/PAD
1
2
3
SW13
KEY/PAD
D15 1N4148
D16 1N4148
D17 1N4148
D18 1N4148
D19 1N4148
D20 1N4148
D21 1N4148
D22 1N4148
D23 1N4148
D24 1N4148
D25 1N4148
D26 1N4148
SEL_2
SEL_3
1
2
3
SW6
KEY/PAD
1
2
3
SW7
KEY/PAD
D11 1N4148
D12 1N4148
D13 1N4148
D14 1N4148
1
2
3
SW16
KEY/PAD
1
2
3
SW17
KEY/PAD
1
2
3
SW18
KEY/PAD
1
2
3
SW19
KEY/PAD
1
2
3
SW20
KEY/PAD
1
2
3
SW21
KEY/PAD
D31 1N4148
D32 1N4148
D33 1N4148
D34 1N4148
D35 1N4148
D36 1N4148
D37 1N4148
D38 1N4148
D39 1N4148
D40 1N4148
D41 1N4148
D42 1N4148
SEL_4
SEL_5
1
2
3
SW14
KEY/PAD
1
2
3
SW15
KEY/PAD
D27 1N4148
D28 1N4148
D29 1N4148
D30 1N4148
1
2
3
SW24
KEY/PAD
1
2
3
SW25
KEY/PAD
D47 1N4148
D48 1N4148
D49 1N4148
D50 1N4148
SEL_6
SEL_7
1
2
3
SW22
KEY/PAD
1
2
3
SW23
KEY/PAD
D43 1N4148
D44 1N4148
D45 1N4148
D46 1N4148
RD_0
RD_1
RD_2
RD_3
RD_4
RD_5
RD_6
RD_7
RD_0
RD_1
RD_2
RD_3
RD_4
RD_5
RD_6
RD_7
RD_0
RD_1
RD_2
RD_3