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authorrekado <rekado@elephly.net>2012-11-19 08:12:12 +0800
committerrekado <rekado@elephly.net>2012-11-19 08:12:12 +0800
commit7835d27aba191ef3b47af0cc8d4eb6778059eb53 (patch)
treea2e31ff9ba3b3ceb1590bddf4c914695192bddf6
parent277e50dcb89ea88c3073e7f2227b9457226c48e1 (diff)
remove trim pot before DI box
-rw-r--r--gschem/outputs.sch27
1 files changed, 8 insertions, 19 deletions
diff --git a/gschem/outputs.sch b/gschem/outputs.sch
index 9a44a30..65ca5ce 100644
--- a/gschem/outputs.sch
+++ b/gschem/outputs.sch
@@ -67,27 +67,13 @@ device=RESISTOR
T 56700 49000 5 10 1 1 0 0 1
refdes=R501
T 56700 48800 5 10 1 1 0 0 1
-value=22k
+value=100k
T 56400 49500 5 10 0 1 0 0 1
footprint=R025
}
-N 56500 49700 56500 49500 4
-C 56900 47600 1 0 0 vcc-minus-1.sym
+N 56500 49500 56500 50200 4
C 56200 47600 1 0 0 vcc-minus-1.sym
N 56500 48200 56500 48600 4
-C 57000 50300 1 180 0 resistor-variable-2.sym
-{
-T 56650 50800 5 10 1 1 180 0 1
-refdes=R502
-T 56200 49400 5 10 0 1 180 0 1
-device=VARIABLE_RESISTOR
-T 56300 50400 5 10 1 1 0 0 1
-value=100k?
-T 57000 50300 5 10 0 1 0 0 1
-footprint=BOURNS_3296w
-}
-N 57000 50200 57200 50200 4
-N 57200 50200 57200 48200 4
N 56500 49600 59100 49600 4
C 54900 50000 1 0 0 capacitor-4.sym
{
@@ -102,8 +88,9 @@ value=1u
T 54900 50000 5 10 0 1 0 0 1
footprint=RCY100P
}
-T 56700 48500 9 10 1 0 0 0 1
-taper resistor
+T 55800 50900 9 10 1 0 0 0 2
+TODO: find the right value to
+prevent overloading of the DI box
C 48800 50600 1 0 0 capacitor-4.sym
{
T 49000 51700 5 10 0 0 0 0 1
@@ -473,7 +460,7 @@ When a cable is connected, i.e. when stereo
output is requested, there is no signal on
JACKSWITCH_B:1. The total output of the opamp
will be BLEND_1:1 (A).
-N 55800 50200 56100 50200 4
+N 55800 50200 56500 50200 4
T 51900 47200 9 10 1 0 0 0 1
IDEA: replace IC501 with two JFET followers.
C 56900 44200 1 0 0 connector2-2.sym
@@ -529,3 +516,5 @@ N 51700 53000 51700 53400 4
N 51700 53400 52200 53400 4
T 65800 46700 9 10 1 0 0 0 1
XLR out
+T 45700 49300 9 10 1 0 0 0 1
+TODO: add off-board wiring of volume control