Shure FP33 User Manual

Page 6

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MIC

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Figure 2

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INPUT PANEL CONNECTORS AND CONTROLS (Figure 2)

Channel Inputs: The three female XLR inputs are
transformer balanced for superior rejection of hum,
RFI, and other interference. Each input can provide
48 V or 12 V phantom power (for condenser micro-
phones); 12 V T (A-B) power (for condenser micro-
phones); or no power (for dynamic microphones). See
the Internal Switches and Controls section.

Mic/Line Level Input Switch: Selects Microphone or
Line to match the incoming signal level. The Mic signal
level is typically 0.1–3 mV, and the Line signal level is
typically 0.1–3.0 V. In the Line level position, phantom
and T power are disconnected from the input.

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Figure 3

OUTPUT PANEL CONNECTORS AND CONTROLS (Figure 3)

Mix Bus Jack: Allows an FP33 to be connected to an
additional FP33 or FP32A mixer. A mix bus cable is
supplied with every FP33. The Mix Bus connection is
”two-way” and pre-Master. When two mixers are con-
nected via the Mix Bus, all six inputs appear at both
mixers’ outputs. The Master Gain control of either mix-
er can be adjusted without affecting the output of the
other. This provides the equivalent of a six-input stereo
mixer with two separate Master output sections.

Note: The output level of both mixers will drop by 6 dB
when they are connected via the Mix Bus. Increase
the Master Gain to compensate for this.

Main Output: The two male XLR outputs are trans-
former balanced and may be switched to Mic or Line
Level. The Line Level output can be modified to a true
600

Ω

. See the Internal Modifiable Functions section.

Headphones Outputs: A stereo 1/4 in. phone jack
and a stereo 3.5 mm mini-phone jack may be used
separately, simultaneously, or as auxiliary feeds to
other equipment.

Monitor In Jack: Designed to accept stereo line-level
signals. This 3.5 mm jack provides a “tape return” in-
put or a communications channel input. This signal
appears only in the FP33 headphone circuit. Activat-
ing the front panel Monitor In switch routes the Monitor

In signal to the headphones. Program audio is

not

heard in the headphones when this switch is on.

Note: A “split-feed” (FP33 audio in one ear and Monitor
In audio in the other) can be accomplished via internal
DIP Switches 4 and 5. Also, an internal modification will
allow attenuated FP33 audio to be heard in the head-
phones even when the Monitor In switch is activated.
Refer to the Internal Modifiable Functions section.

Tape Output Jack: A stereo 3.5 mm mini-phone jack
(auxiliary level) to feed a cassette recorder, DAT ma-
chine, or semi-pro video recorder. This output can be
modified to provide a mono (L+R) signal; provide an un-
balanced line level or mic level output; provide an iso-
lated output containing only the Slate mic and Slate
tone. Refer to the Internal Modifiable Functions section.

Mic/Line Level Output Switch: Selects Mic or Line
Level to match the input level of the device connected
to the FP33 output. The Mic signal level is typically
0.1–3 mV; the Line signal level is typically 0.1–3 V.

12–30 Vdc In Jack (External Power): This accepts
a non-polarized coaxial plug from a 12 to 30 Vdc ex-
ternal power supply. The external supply must have a
negative ground or a floating ground. A Shure PS20
or PS20E ac adapter, an automotive battery, or a re-
chargeable belt pack are all suitable power supplies.

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