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Formula Sound FSM-400 User Manual

Compact fixed format stereo production mixer
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Table of Contents

FSM-400
PRODUCTION MIXER
USERS MANUAL

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Summary of Contents for Formula Sound FSM-400

  • Page 1 FSM-400 PRODUCTION MIXER USERS MANUAL...
  • Page 2 Although the FSM-400 is a fixed format design the use of individual circuit cards per channel improve reliability and aid servicing should the need arise. Construction and audio quality are to Formula Sound’s usual highest standards.

  • Page 3: Input Channel

    INPUT CHANNEL 1 Input selector switch selects input used. M = microphone (XLR connector). L = stereo line (phono connectors). 2 parallel pairs of phono sockets allow easy parallel of source to a second input if required. GAIN L.e.d.s and label area clearly show which input is in use. Gain control sets input gain level.
  • Page 4 INPUT CHANNELS 2 TO 4 Input selector switch selects input used. A = input A B = input B. Input B is always a stereo line input (internal jumpers selects input A to be either RIAA magnetic cartridge or a standard line input. (phono GAIN connectors)).

  • Page 5: Output Section

    MASTER STEREO output and PFL signals to JACK be monitored simultaneously. This function is often preferred FSM-400 when mixing tracks in PUNCH synchronisation. The two signals are summed to mono and presented to the monitor section with the main output fed to left and PFL fed to right sections.
  • Page 6 REMOTE MUSIC MUTE - To cater for the increasing requirement to mute music signals in entertainment venues when the fire alarm is activated the FSM-400 has provision to remotely mute all music sources by linking two pins on the connector provided. The fire alarm panel needs to provide a fully floating pair of contacts which close when the alarm is activated.

  • Page 7: Service And Configuration

    Always remove the power cord before removing covers. To gain access to the internal parts of the FSM-400 remove 4 screws from each of the two side covers which surround the FSM-400. This will give access to the internal jumpers and adjustments.

  • Page 8: Mixer Dimensions

    Page 6 Mixer Dimensions Width 382mm (15”) Height 283mm (11.125” ) Depth 110mm (4.33”) Installation cut out for mounting the FSM-400 through a work surface. 330mm wide X 270mm height Formula Sound Ltd Ashton Road Bredbury Stockport Cheshire England SK6 2SR Tel +44 (0)161 494 5650 Fax +44 (0)161 494 5651...
  • Page 9 Page 7 INSTALLATION, CONNECTIONS AND GOOD WIRING PRACTICE The installation of professional audio systems should be left to experienced engineers wherever possible. The interconnection of audio systems can be fairly complex depending on the type and size of system and obviously well outside the scope of this handbook. We have included a few basic points for information for anyone who is new to audio systems.
  • Page 10 Page 8...

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