Speck Electronics LiLo - Manual (Page 23)

Chapter 3 Operation Section 19
Circuit board configuration jumpers
Figures 9a and 9b below show the locations and designation of the
configuration push-jumpers for the Direct Out and the Aux Sends.
Direct Out
By default the Direct Out push jumper is set to the “Normal” (fader) position.
The other settings may be the Line-A preamp, Line-B preamp, Aux 2 send, or
Aux 4 send as shown below in Figure 9b.
Aux pre configuration
The Aux pre configuration jumper will allow the “Pre” position on both
Post/Pre switches [17] & [19] to be set at either "Pre Fader" or "Pre Insert".
By default, the LiLo is shipped with this jumper in the "Pre Fader" position.
This push jumper affects the “Pre” setting for Aux Sends 1 through 4. Refer
to Figure 9a below for the location and setting of this jumper.
10K-A 10K-A
G G G G
G G
Y Y R R
G G
Out Out Power Power
IN IN
LL H H C C -- ++
H H L L
Out Out
H H L L
In In
- - + + C C
Trim Trim
T- T- T+ T+
Pow er Pow er
H H L L
Out Out
H H L L
In In
- - + + C C
Trim Trim
T- T- T+ T+
Pow er Pow er
1K1K 36 0
36 0 90 9
90 9
Y Y
36 0
36 0 36 0
36 0
Line A Line A
Line B Line B
Normal Normal
Aux 4 Aux 4
Aux 2 Aux 2
L L R R
Y Y
A A
A A
B B
B B
2.1K 2.1K
Pre Fa der
Pre Fa der
Pre Ins ert
Pre Ins ert
10K-A 10K-A 10K-A 10K-A 10K-A 10K-A 10K-A 10K-A 10K-A 10K-A 10K-B 10K-B
1 1 2 2
19 19 20 20
1 1
Figure 9a.
Aux configuration jumper
Line A Line A
Line B Line B
Normal Normal
Aux 4 Aux 4
Aux 2 Aux 2
P
re
F
a
d
e
r
P
re
F
a
d
e
r
P
re
I
n
s
e
rt
P
re
I
n
s
e
rt
Note - All active-balanced output circuits of the LiLo were designed for
balanced lines and should only be connected to balanced inputs. If
that is not possible and it is necessary to connect to an unbalanced
input, care must be taken not to connect the low (-) terminal to
ground. If the low (-) terminal of these outputs is connected to
ground, the result will be a high level of audio distortion.
Figure 9b.
Direct Out configuration jumper
(Fader)