Manual-2
Front and Rear Panel Descriptions
PGM 1
and
PGM 2
input
GAIN TRIM
controls adjust the input level.
With the
Program Faders
(
)
at maximum
, set GAIN TRIM to give a
peak reading
of
+
4 on
the meter. Set the
MASTER LEVEL
(
) to minimum while adjusting). It is
always
best to run the input level at +4 to +7. Use the
MASTER LEVEL
to adjust the vol-
ume at the
MASTER OUT
(
).
BASS
and
TREBLE
controls provide deep cut,
Accelerated Slope™
EQ for
PGM 1
and
PGM 2
. This unique EQ design makes it possible to eliminate the “sizzle” or
“bass beat” without changing the vocal range. The graph in Figure 1 indicates the
response of the filters.
BALANCE
controls are used for
LEFT/RIGHT
balance of
PGM 1
and
PGM 2
or
for
LEFT/RIGHT
Pan effect. Push the control to the left and sound moves to the
left channel. Push the control to the right and sound moves to the right channel.
EFFECTS
engage switches are provided for
PGM 1
and
PGM 2
.
These two switches
determine the location of a single,
assignable,
stereo
EFFECTS LOOP
.
•
PGM 1
&
PGM 2 EFFECTS
both
out
:
EFFECTS
is not engaged.
•
PGM 1 EFFECTS
switch in
only
:
EFFECTS
inserted pre-
Program Fader PGM 1
.
•
PGM 2 EFFECTS
switch in
only
:
EFFECTS
inserted pre-
Program Fader PGM 2
.
•
PGM 1
&
PGM 2 EFFECTS
both
in
:
EFFECTS
inserted post-
Crossfader Master
.
CONTOUR
switches provide three tapers for
PGM 1
and
PGM 2 Program Fad-
ers
. The numbers
6
,
20
and
30
indicate the mid-point attenuation. Settings can
provide smooth fade or cut and scratch effects. Note in Figure 2, the
6
dB setting
provides a
quick on
contour for cut and scratch (0% travel is with
Program Fader
up
). When used with the
HAMSTER
reversal switch, the
Program Fader
operates
very similar to the
Crossfader
, allowing the same hand motion for cut and scratch
operation. The
20
dB setting provides a normal audio taper while the
30
dB setting
provides a more rapid fade out.
HAMSTER
switches reverse the operation of the adjacent
PGM 1
and
PGM 2
Program Faders
. When engaged, signal is
off
with the
Program Fader
up,
and
maximum
with the
Program Fader
down
.
PHONO / LINE
source select switches are provided for
PGM 1
and
PGM 2
. These
are “clickless” switches suitable for “transform scratch” applications. The switches
are replaceable and may be rotated.
See page Manual-6 for rotation and replacement
instructions.
Program Fader
controls for
PGM 1
and
PGM 2
are ultra low noise, long-life,
monorail devices. The control element is completely isolated from the audio using
VCA circuits (voltage-controlled amplifier), providing the highest reliability and
performance.
See page Manual-6 for cleaning and replacement.
PGM 1
and
PGM 2 Meters
provide true L+R Dual Mono indication of
Post-
Program Fader
signal levels. Ten segment resolution is provided with a one second
peak hold indication. With the Program Fader set to maximum, set the input
GAIN
TRIM
to indicate an average level of about
+4
.
Crossfader
is implemented using Ranes’ VCA
design. As with the
Program Faders
,
all audio is isolated from the control element, greatly extending the life and perfor-
mance of the control.
See page Manual-6 for cleaning and replacement.
Figure 1. PGM Bass & Treble Controls
10
8
6
4
0
2
10
8
6
4
0
2
0
10
0
2
4
6
10
8
30
20
6
-8
LEFT
+8
-40
+10
RIGHT
-40
0
-8
2
4
10
+8
8
6
4
0
2
10
6
8
0
6
8
4
HAMSTER
4
2
6
2
0
8
10
0
-7
-10
-20
-2
-4
+7
+4
+2
+10
2
4
6
10
8
CUE 1
+10
LEFT
-40
+10
30
20
6
+10
-40
RIGHT
0
2
4
10
6
8
2
MASTER
CUE
10
0
CUE 2
4
8
6
TREBLE
PGM 1
HAMSTER
CONTOUR
EFFECTS
BASS
PHONO
LINE
BALANCE
TREBLE
MIC
OL
LEVEL
GAIN TRIM
PGM 1
GAIN TRIM
PGM 2
BASS
PGM 2
PHONES
LINE
PHONO
BALANCE
BASS
TREBLE
PAN
LEVEL
HAMSTER
CONTOUR
EFFECTS
MASTER/CUE
TTM 54i PERFORMANCE MIXER
1
2
3
4
13
14
15
5
6
8
10
7
9
AUDIO PRECISION FRQ_UB
vs
11 AUG 98 10:34:42
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
2-CHAN(dBr)
20
100
1k
10k
20k
FREQ(Hz)
