Mackie Ultra-34 Service manual - page 9
J2
(J38 on front jack PCB)
J1
CH 17 RETURN -
1
2 CH 17 RETURN +
CH 1 OUT
1
2 CH 17 OUT
CH 1 RETURN -
3
4 CH 1 RETURN +
CH 1 IN
3
4 CH 17 IN
CH 17 SEND
5
6 CH 1 SEND
CH 2 OUT
5
6 CH 18 OUT
CH 17 SEND GND
7
8 CH 1 SEND GND
CH 2 IN
7
8 CH 18 IN
CH 18 RETURN -
9
10 CH 18 RETURN +
CH 3 OUT
9 10 CH 19 OUT
CH 2 RETURN - 11
12 CH 2 RETURN +
CH 3 IN 11 12 CH 19 IN
CH 18 SEND 13
14 CH 2 SEND
CH 4 OUT 13 14 CH 20 OUT
CH 18 SEND GND 15
16 CH 2 SEND GND
CH 4 IN 15 16 CH 20 IN
CH 19 RETURN - 17
18 CH 19 RETURN +
CH 5 OUT 17 18 CH 21 OUT
CH 3 RETURN - 19
20 CH 3 RETURN +
CH 5 IN 19 20 CH 21 IN
CH 19 SEND 21
22 CH 3 SEND
CH 6 OUT 21 22 CH 22 OUT
CH 19 SEND GND 23
24 CH 3 SEND GND
CH 6 IN 23 24 CH 22 IN
CH 20 RETURN - 25
26 CH 20 RETURN +
CH 7 OUT 25 26 CH 23 OUT
CH 4 RETURN - 27
28 CH 4 RETURN +
CH 7 IN 27 28 CH 23 IN
CH 20 SEND 29
30 CH 4 SEND
CH 8 OUT 29 30 CH 24 OUT
CH 20 SEND GND 31
32 CH 4 SEND GND
CH 8 IN 31 32 CH 24 IN
CH 21 RETURN - 33
34 CH 21 RETURN +
CH 9 OUT 33 34 CH 25 OUT
CH 5 RETURN -
35 36 CH 5 RETURN +
CH 21 SEND
37 38 CH 5 SEND
CH 21 SEND GND
39 40 CH 5 SEND GND
J6
GND
1
2 GND
J5
(J125 on front jack PCB)
GND
3
4 GND
CH 22 RETURN -
1
2 CH 22 RETURN +
GND
5
6 GND
CH 6 RETURN -
3
4 CH 6 RETURN +
CH 9 IN
7
8 CH 25 IN
CH 22 SEND
5
6 CH 6 SEND
CH 10 OUT
9 10 CH 26 OUT
CH 22 SEND GND
7
8 CH 6 SEND GND
CH 10 IN 11 12 CH 26 IN
CH 23 RETURN -
9
10 CH 23 RETURN +
CH 11 OUT 13 14 CH 27 OUT
CH 7 RETURN - 11
12 CH 7 RETURN +
CH 11 IN 15 16 CH 27 IN
CH 23 SEND 13
14 CH 7 SEND
CH 12 OUT 17 18 CH 28 OUT
CH 23 SEND GND 15
16 CH 7 SEND GND
CH 12 IN 19 20 CH 28 IN
CH 24 RETURN - 17
18 CH 24 RETURN +
CH 13 OUT 21 22 CH 29 OUT
CH 8 RETURN - 19
20 CH 8 RETURN +
CH 13 IN 23 24 CH 29 IN
CH 24 SEND 21
22 CH 8 SEND
CH 14 OUT 25 26 CH 30 OUT
CH 24 SEND GND 23
24 CH 8 SEND GND
CH 14 IN 27 28 CH 30 IN
CH 25 RETURN - 25
26 CH 25 RETURN +
CH 15 OUT 29 30 CH 31 OUT
CH 9 RETURN - 27
28 CH 9 RETURN +
CH 15 IN 31 32 CH 31 IN
CH 25 SEND 29
30 CH 9 SEND
CH 16 OUT 33 34 CH 32 OUT
CH 25 SEND GND 31
32 CH 9 SEND GND
CH 16 IN 35 36 CH 32 IN
CH 26 RETURN - 33
34 CH 26 RETURN +
LEFT OUT 37 38 RIGHT OUT
CH 10 RETURN -
35 36 CH 10 RETURN +
LEFT IN 39 40 RIGHT IN
CH 26 SEND
37 38 CH 10 SEND
CH 26 SEND GND
39 40 CH 10 SEND GND
J4
+15 VDC
1
J7
(J60 on front PCB)
GND
2
CH 27 RETURN -
1
2 CH 27 RETURN +
-15 VDC
3
CH 11 RETURN -
3
4 CH 11 RETURN +
+5 VDC
4
CH 27 SEND
5
6 CH 11 SEND
DGND
5
CH 27 SEND GND
7
8 CH 11 SEND GND
GND
6
CH 28 RETURN -
9
10 CH 28 RETURN +
GND
7
CH 12 RETURN - 11
12 CH 12 RETURN +
CH 28 SEND 13
14 CH 12 SEND
J3
CH 28 SEND GND 15
16 CH 12 SEND GND
SEL A
1
2 SEL B
CH 29 RETURN - 17
18 CH 29 RETURN +
SEL C
3
4 SEL 0-
CH 13 RETURN - 19
20 CH 13 RETURN +
SEL 1-
5
6 SEL 2-
CH 29 SEND 21
22 CH 13 SEND
SEL 3-
7
8 SEL 4-
CH 29 SEND GND 23
24 CH 13 SEND GND
CLOCK
9 10 DATA
CH 30 RETURN - 25
26 CH 30 RETURN +
DAC 0 11 12 DAC 1
CH 14 RETURN - 27
28 CH 14 RETURN +
DAC 2 13 14 DAC 3
CH 30 SEND 29
30 CH 14 SEND
DAC 4 15 16 N/C
CH 30 SEND GND 31
32 CH 14 SEND GND
N/C 17 18 N/C
CH 31 RETURN - 33
34 CH 31 RETURN +
A/D INPUT 19 20 A/D INPUT
CH 15 RETURN -
35 36 CH 15 RETURN +
CH 31 SEND
37 38 CH 15 SEND
CH 31 SEND GND
39 40 CH 15 SEND GND
J8
(J82 on front PCB)
CH 32 RETURN -
1
2 CH 32 RETURN +
CH 16 RETURN -
3
4 CH 16 RETURN +
CH 32 SEND
5
6 CH 16 SEND
CH 32 SEND GND
7
8 CH 16 SEND GND
RIGHT RETURN -
9
10 RIGHT RETURN +
LEFT RETURN - 11
12 LEFT RETURN +
RIGHT SEND 13
14 LEFT SEND
RIGHT SEND GND 15
16 LEFT SEND GND
GND
17 18 GND
GND
19 20 GND
ULTRAMIX VCA BOARD
JUMPER PINOUT