User manual FOSTEX FM-3

[. . . ] Owner's Manual Model FM-3 Portable Mixer Thank you very much for purchasing the Fostex FM-3 portable mixer. To ensure the best performance, read this manual thoroughly before using the unit. Keep this manual handy for future reference. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Table of contents Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Adjusting the display brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Selecting the meter mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Selecting the status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Input status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 T12 power supply mode setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Output status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Limiter parameter setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Meter status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Parameter setting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Parameter details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Peak meter on/off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 VU meter reference level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Lighting level of peak over indicator . . . . . . . . . . . . . . . . . . . . . 20 Internal battery selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 System status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Initializing the flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Precautions before using . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Precautions on installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Basic operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Preparation of power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Prepararion of input channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Preparation of output channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Preparation of metering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Preparation of monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Master fader reference setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Input setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Names and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Left side panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Right side panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Main specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 External dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. [. . . ] HPF controls (1 through 3) Eachcontrolsetsthehighpassfilterfunction. Pressing a control puts it to the up position. Pressing it again puts it to the downposition(flatposition). OFF The HPF circuit is bypassed. (leftmost position) ON By turning the control right from the Off position, it clicks and the HPF circuit gets active. Depending on the position, the rolloff frequency changes between 40 Hz and 300 Hz (-12 dB/oct). 12. 16. 13. 14. 17. ON OFF 18. The limiter parameters are factory-preset as shown below. You can change the threshold level and ratio from the output status display (see page 18). ·Attacktime:Approximately5milliseconds(fixed) ·Releasetime:Approximately200milliseconds(fixed) · Threshold: +12 dB (can be changed to +6 dB) · Ratio: 5:1 (can be changed to 3:1) <Factory preset values> Input trim controls (1 through 3) Each control adjusts the input gain of the corresponding input channel. When the input select switch is set to MIC, you can adjust the gain between -70 dBu and -30 dBu. When the input select switch is set to LINE, you can adjust the gain between -20 dBu and +4 dBu. It is recommend to adjust the control so that the PEAK indicator does not light in red at the maximum input level. Pressing a control puts it to the up position. Pressing it again puts it to the downposition(flatposition). Channel faders (1 through 3) Each fader controls the signal level sent to the stereo buss. The scale position in orange shows the reference position. 19. 11 Left side panel section 1. [INPUT] connector (1 through 3) Each connector is used to connect an external audio device or microphone. Connector: XLR-3-31 type 1 2 3 GND HOT COLD 5. Microphone power supply switches (T12 / DM /P48) Each switch sets whether or not supplying the microphone power. T12 or AB power supply mode. A 12 V power is supplied to the hot terminal of the [INPUT] connector. T12 <Memo>: If you do not need T12 power supply, you can disable the power supply via the input status display (see page 16 for details). When you connect a dynamic microphone, set the switch to DM. A 48 V power is supplied to the hot and cold terminals of the [INPUT] connector. 2. [AUX IN] connector Used to connect a mixer or audio device. Not only you can monitor the input signal of this connector, you can send the signal to the stereo buss to mix with the main input signals (selectable with the [TO ST BUSS] switch). Connector: XLR-5-51 type 1 2 4 3 5 GND Lch HOT Lch COLD Rch HOT Rch COLD DM P48 6. [DC IN 10-24V] connector Used to connect the supplied AC adaptor (or an external battery). Connector: XLR-4-32 type (male) 1 2 4 3 GND NC DC 10-24V NC 3. [TO ST BUSS] switch (ON / OFF) This switch selects whether or not the input signal from the [AUX IN] connector is sent to the stereo buss. To send the [AUX IN] signal to the stereo buss, set the switch to ON. [. . . ] Damage to any product on which the original serial number has been defaced, modified or removed. Damage to or deterioration of the external cabinet. Damage occurring during shipment of the product. (NOTE: Shipping claims must be presented to the carrier. ) Damage resulting from accident, misuse, abuse or neglect. [. . . ]