Rane FSC 22 Handleiding
Rane
Mengpaneel
FSC 22
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OPERATING / SERVICE MANUAL FSC 22
STEREO COMPRESSOR
QUICK START
These virgin pages tremble at your touch. You’re eyes, the first. Their desperate inquisitive
scanning overwhelms. The summer air burns with anticipation. Do what you must, but what-
ever you do, don’t stop...PLEASE DON’T STOP...reading that is, at least this section before
you torch it.
Here’s some quick highlights:
Set the rear INPUT TRIM switch for the appropriate gain for your signal levels. Don’t be
thrown by the combo Input connectors; they take either ¼" TRS or 3-pin (XLR-type) plugs.
Both Output connectors may be used at the same time if needed, e.g., splitting to different
zones, etc.
Be sure the SYSTEM MODE switch is in its out (DUAL) position, as are the BYPASS
switches. Initially press the METER MODE switch in. Now the meter reads Output Level in
dBu—very useful during set-up. Remember to switch it out when through, so it returns to its
main role of displaying Gain Reduction.
Set the LEVEL controls to “7” for unity gain—a good place to start. Use the BYPASS
controls to A-B levels.
When used with true stereo program, press the SYSTEM MODE switch in to the SLAVE
position. This causes both Channels to operate equally if either exceeds its THRESHOLD
setting.
NEVER CONNECT ANYTHING EXCEPT AN RS 1 OR OTHER APPROVED RANE AC
POWER SUPPLY TO THE RED CONNECTOR THAT LOOKS LIKE A TELEPHONE JACK ON
THE REAR OF THE UNIT. This is an AC input and requires special attention if you do not
have an operational power supply EXACTLY like the one originally supplied with your unit. A
Rane Model FRS 8 or RAP 10 power supply is acceptable as well.
SYSTEM CONNECTION
Locating the FSC 22 in your system depends on the
application. When assembling a sound reinforcement system,
place the FSC 22 between the equalizer (if used) and the
active crossover, or the power amplifier if using passive
crossovers.
In recording applications, locate the FSC 22 in the insert
loops on the mixing console, or in series with the outputs
before the recorder. Most consoles allow headphone monitor-
ing of the processed signal (i.e., post inserts). A most useful
feature.
When using the FSC 22 on mixdown, connect it to the
output of the multichannel recorder, or in the inserts of the
mixdown console.
Many recording situations require connecting the FSC 22
to the patch bay in the system. This makes it easy to move
from one signal path to another, as new applications dictate.
Use only fully balanced wiring of this and all components,
without signal ground ever connecting between units. All
shields should be chassis, i.e., earth grounded. Consult Rane
Note 110, an application guide available from Rane Corpora-
tion or your local Rane dealer. This note details standard
wiring conventions which help reduce noise and distortion.
FRONT PANEL DESCRIPTION
1. RATIO CONTROL. This rotary control determines the slope of the compressor for
signals exceeding threshold. Full counter-clockwise rotation of the RATIO control
disables all Compressor activity.
2. DUAL FUNCTION METER. This six segment LED meter indicates either Gain
Reduction or Output Level as determined by the position of the Meter Mode
Switch. GAIN REDUCTION mode displays the amount of reduction (below
unity) applied to the audio signal by the VCA. OUTPUT mode displays the
balanced output level in dBu, i.e. where 0dBu = 0.775 Vrms.
3. METER MODE PUSHBUTTON. The out, or disengaged, position selects GAIN
REDUCTION meter mode. The in, depressed, or engaged, position selects
OUTPUT meter mode.
4. THRESHOLD LED. This yellow LED illuminates any time the input signal
exceeds the THRESHOLD setting.
5. THRESHOLD CONTROL. The position of this rotary knob determines above
what input level the Compressor/Limiter functions.
6. BYPASS LED. A red LED indicating the BYPASS switch is engaged.
7. BYPASS SWITCH. A passive switch used to bypass all active circuitry in this
channel. Press in to Bypass. Useful for A-B comparisons and to restore signal path
should power fail.
8. SYSTEM RESPONSE SWITCH. Use this pushbutton to select the desired attack/
release response. Out chooses SLOW; in chooses FAST.
9. SYSTEM MODE SWITCH. In the in (SLAVE) position, this switch causes both
Channels’ Compressors to act together, i.e., they are “slaved”. All controls for both
Channels remain active, so independent settings are still possible; however,
whenever a signal in either Channel exceeds its setting, then both Channels change
by the same amount. In the out (DUAL) position, both Channels operate indepen-
dently.
10. OUTPUT LEVEL CONTROLS. This concentric control increases or decreases
the output Level for each Channel. Up to 10dB of gain is available. Unity gain is
about “7” for balanced outputs, and “8” for unbalanced outputs.
11. OVERLOAD LEDS. Illuminates any time either output signal gets to within about
4dB of clipping. Occasional flickering is okay, continuous is not.
12. POWER INDICATOR LED. Hey, if it’s lit, you’re fit; if not, call a doc. And
while we’re on the subject of power, let me take this opportunity to tell you just
what I think about runaway government ...
REAR PANEL DESCRIPTION
1. INPUT CONNECTORS. An active balanced input ultilizing a combo connector
compatible with either a 3-pin (XLR-type) or a ¼" TRS plug. Polarity follows the
AES/ANSI/IEC standard of pin 2 (tip) positive, pin 3 (ring) negative and pin 1
(sleeve) signal ground.
2. INPUT TRIM SWITCH. In its +4dBu position, the input gain is unity. In the –
10dBV position, the input gain is increased by 12dB (although mathematically
suspicious, it really is 12dB, not 14dB). This compensates for so-called “semi-pro”
(which I guess means you sorta get paid) recording equipment. THE FRONT
PANEL CALIBRATION MARKS ASSUME THIS SWITCH IS IN THE +4dBu
POSITION. The only exception to this is the Output Meter Mode marks which
remain accurate in either position.
3. OUTPUT CONNECTORS. These connectors follow the polarity convention
outlined above. Wired in parallel, both connectors may be used simultaneously, if
needed.
4. GROUND LIFT SWITCH. In its LIFT position, signal ground and chassis ground
are not connected.
5. REMOTE POWER SUPPLY INPUT. This unit is supplied from the factory with a
Model RS 1 Remote Power Supply suitable for connection to this input jack. This
unit’s power requirements call for an 18 volt AC center-tapped transformer only.
THIS IS NOT A DC INPUT. IT IS NOT A TELEPHONE JACK. NEVER USE A
POWER SUPPLY OTHER THAN THE ONE SUPPLIED OR AN EXACT REPLACE-
MENT OBTAINED FROM RANE CORPORATION. Using any other type of supply
may damage the unit and void the warranty.
6. CHASSIS GROUND POINT. A 6-32 screw is used for chassis grounding purposes.
See CHASSIS GROUNDING note on last page for details.
Product specificaties
| Merk: | Rane |
| Categorie: | Mengpaneel |
| Model: | FSC 22 |
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