Peavey GTX Fader Reverse Switch, Ground, Group Assignment, Headphone Jacks, HF Peak/Shelve Switch

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GTX

CENTURY SERIES

Fader Reverse Switch

This switch swaps roles between the Effect Return Level pot and the Group Fader. When pressed, this switch causes the Effect Return Level to be controlled by the group fader, and the group level to be controlled by the Effect Return Level pot. If you want fader control when setting effect returns, this switch is particularly helpful. A red LED indicator is provided to the left of the switch and illuminates when the switch is pressed (reverse mode).

Gain Control

This knob (-20 to 70 dB) adjusts input gain circuitry for proper electrical operation with any input signal level. Adjust this control by monitoring the input meter LED’s for bright intensi- ty, with peak (red) LED flashing only occasionally when the loudest program material is present. When using this method for adjustment of the Gain Control, normal signal level should be adjusted to show a level between -6 and +8. Constant distor- tion on an input channel could mean that the input channel is being overdriven. Check for improper input gain adjustment first. (When a PFL switch is pressed on an input channel, this signal can also be observed on the Left/Right Solo monitor meters within the GTx meter bridge.)

Ground

Console chassis and audio ground are connected together. The console power supply includes an external link that connects console ground to AC power ground. This link is provided for user selection when optimising system ground requirements.

Group Assignment

(See Bus Assignment)

Group Insert Send/Balanced Insert Return Jacks (Group Module)

These jacks allow you to access a point in the group module’s electrical circuit for inserting an external signal processor. The output level of this connector is designed to drive the inputs of most external signal processing equipment and to accept the resulting output signal. When properly wired TRS plugs are inserted in these jacks, the patched devices are inserted into the signal path immediately pre-fader. See the Connections and Conventions section in the front of the manual for specific information on plug polarity and signal assignments.

Group Meters 1-8

Located within the meter bridge, these VU-type meters moni- tor the post-fader output of the groups. Similar meters on the Master Section monitor Left, Center (Mono) and Right out- puts. 0 Level = +4dBu output level.

Headphone Jacks

Located at the top of the master section and under the right side of the arm rest, these jacks provide a stereo headphone level output of the Left, Center (Mono), and Right outputs. When L-C-R panning is enabled, the Center Bus will not be audible in the headphones; the Center Bus must be PFL'd to monitor it audibly.

Headphone Level Control

This control (marked PHONES and located in the upper right

Master section) adjusts the level of the signal fed to the two headphone jacks; one of these jacks is located next to the PHONES control, and another is just below the armrest on the far right side.

HF Peak/Shelve Switch

This switch is used for switching the high frequency EQ con- trol between the normal shelving setting to a peak setting. A shelving setting would be used to boost or cut all frequencies above the dialed-in frequency. A peak setting would be used to boost or cut the specific dialed-in frequency.

High Pass Filter (Adjustable)

See ADJUSTABLE HIGH PASS FILTER

Insert Send/Balanced Insert Return Jacks (Input Module)

These jacks allow you to access a point in the channel’s elec- trical circuit for inserting an external signal processor. The out- put level of the Insert Send jack is designed to drive the inputs of most external signal processing equipment and to accept the resulting output signal. When a properly wired TRS plug is inserted in these jacks and the Insert switch is down, the input signal path is broken after the gain stage and the high pass fil- ter. The Balanced Insert Return jack feeds the return signal to a point just before the EQ section. See the Connections and Conventions section in the front of the manual for specific information on plug polarity and signal assignments. (With the Insert switch down, the insert return jack may be used as a line level input to the channel that bypasses the mic preamp, mic/line switch, pad, gain control, and hi pass filter.)

Insert Switch w/LED

This switch, located on the GTX Input (and GTX Stereo Input) modules, introduces into the signal path any processing that is patched into the Insert Send and Balanced Insert Return jacks on the rear panel. An associated green LED is illuminated when the Insert switch is down.

Internal Oscillator

The GTx master section has a 1 kHz internal oscillator. This oscillator can be used as signal source to run tests, diagnostics or calibrations. The oscillator can be assigned to all Groups, Auxes and Matrices via the Talkback assignment switches.

Lamp Dim Control

This control adjusts the brightness of whatever lighting devices are plugged into the XLR sockets on the meter bridge. (Standard 12V DC power is provided on pins 2 & 3).

L-C-R Switch

Provides true L-C-R pan to the main mix outputs. When this switch is released, the pan operates on L&R in the normal fashion. See also PAN CONTROL.

Left Meter

Located on the GTx meter bridge, this VU-type meter indicates the Left output level, post fader.

LF Peak/Shelve Switch

This switch is used for switching the low frequency EQ control between the normal shelving setting and a peak setting. A shelving setting would be used to boost or cut all frequencies

APPENDIX B

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Contents GTx Crest Audio Inc Table of Contents Feature Overview Wiring Conventions Input XLR Output XLRInput Module Connections Direct Out Insert SendBal Insert Return Group Module Connections Group OutMaster Module Connections Matrix Out A&B Mono OutRight Out Stereo ProgramCentury Series Console Power Supply Power Connections Console CoolingSignal Processors System ConnectionsOutput Connections GTx Input Module EQ in Switch PRE/POST SwitchAux 8 Direct Switch AUX 5&6 PRE/POST SwitchGTx Stereo Input Module Gain & R Gain ControlsThree-Band Sweep Equalizer Controls AUX Level 1&2 / 3&4PRE/POST Switch 1&2 / 3&4 PRE/POST Switch 5&6Stereo Switch PRE/POST Switch 7&8EFX Return GTx Group Modules Matrix Matrix AUX Mains Left Right 6MONO STR PGM Matrix Module AUX GTx Master Section Mono Assignment Switches Mono Matrix Post SwitchesMono PFL Switches Mono Peak & Signal LED’sGTx Meter Bridge 52 & 64 Frame Models AUX MetersGTx Meter Bridge 44 Frame Model Page GTx General Specifications GTx Console ConfigurationsArchitect’s & Engineer’s Specifications Century GTx Block Diagram Side Dimensions Dimensions RearViewsGTx USER-OPTIONS Module Location Option Title FunctionConsole Disassembly ONE Open the armrestTWO Remove front module screw Three Remove rear screwsPage GTx Glossary Bus Assignment Switches DC Power IndicatorsCenter Meter Direct Out JackFader Reverse Switch HF Peak/Shelve SwitchHigh Pass Filter Adjustable Insert Switch w/LEDMatrix Post Switch Mute SwitchOscillator/Pink In Connector Line Input JackPAN Switch Phantom PowerPhase Pre/Post Aux Fader SwitchesStereo Program In Connector Talkback Enable SwitchXLR Microphone Input Connector Talkback Microphone InputPage Appendix C Schematics Crest Audio Inc