12 - Front panel—Chs 1–16, 17–32, Aux & buss send masters12–4–10 dBV) corresponds to a reading of –16 dB(relative to full-scale), which is representedhere as –16 dBFS). This factory value may bechanged by authorized TASCAM service per-sonnel only to either –20 dBFS or –9 dBFS.Contact your TASCAM dealer for details.The top of the scale represents overload (over full-scale). Unlike an analog meter reading of 0 or a“plus” value, which are relative to a nominal signallevel, digital overload results in harsh distortion andclipping. Take care that the top OL meter segmentdoes not light, even in the loudest parts of theprogram. NOTEThe way in which digital equipment metersare calibrated varies between different manu-facturers. While a reading of OL or OVER willbe the same on all TASCAM equipment, thereis no guarantee that identical readings will beproduced on equipment from other manufac-turers. Be aware of the possible discrepan-cies between meter readings on differentpieces of equipment in your setup.[22] Monitor select keys and indicatorsThese keys (AUX1, AUX2, AUX3, AUX4, AUX5,AUX6, D-IN1, D-IN2, 2TR and STEREO) are used toselect the signals which are routed through the moni-toring system. These correspond to the six AUX busssends, the two digital inputs, one of the two analog 2-track mastering recorders (selected with the 2TRRTN 1/2 switch [62]) and the STEREO OUT.The meters show the level of the selected monitorsource(s), except for the analog 2TR selection.[23] PFL and IN PLACE indicatorsThe appropriate one of this pair of indicators showsthe status of thr currently-selected solo mode (fromthe OPTION SOLO screen (see 5.4, “SOLO”).PFL flashes when pre-fade listen mode is selectedand a channel is being soloed. IN PLACE lightswhenever in-place soloing is selected.[24] TO SLATE and TO AUX 1-2 keys andindicatorsThese keys allow the routing of the signal from theintegral talkback microphone to the slate (the stereooutput buss and the eight output busses) and the Aux1/2 busses. See 5.1.3, “Talkback”.12.6Chs 1–16, 17–32, Aux & busssend mastersEach mono input module has identical facilities andcontrols, regardless of whether it is being used as aninput channel or a tape return.Note that the majority of the operations which affecta channel are performed using the PODs and the dis-play screens as described in 4, “Module operations”.[25] REC key and indicator (modules 1–16)If an external machine is connected and has beenselected for remote track arming control through theTM-D4000 (see the section on external machine con-trol for details of how to achieve this), these keys andindicators are used to set and display the track arm-ing and recording status of the external machine.The ALL SAFE key [33] can be used to turn off therecording status of all tracks.Note that the status of the keys and indicatorschanges according to the active fader layer, and is setup on the MIDI & MC SETUPMACHINE CTRL screen.[26] SEL key and indicatorThis key and indicator are used to select the modulefor editing, etc. using the display screens. They arealso used in grouping, etc. to select the channelswhich are part of a group (4.9, “Fader and cutgroups”) and for the stereo linking of modules (4.2,“Stereo linking”).When a module, or pair of modules linked as a stereopair is selected, the appropriate SEL indicator(s) willlight.[27] SOLO key and indicator (monoinput modules and ST IN modules)This key and indicator are used to solo the inputmodule in the appropriate mode, as selected in theSOLO options (5.4, “SOLO”) and shown on thesolo indicators [23].When the active fader layer is the MASTER layer,pressing the SOLO keys will have no effect, excepton the ST IN modules (output busses and Aux sendscannot be soloed).[28] CUT key and indicatorThis key and indicator are used to cut the signal fromthe input channel to all output busses, the STEREO