User manual AUDIO TELEX AT

[. . . ] They may be stackerl to a maximun ol tour sxj1' high. nnins cord an4 receptacle is provided, the receptacle also houses the mains f-use in a drawer, SETTING UP oooo o, o, ;. PANEL CONTROLS (fig 7 18 l ); InpuLs conne. cted at the i _1 1 CUt-+ Marked one to four tlrese i:ontrols will respontl to either Microphone lnptrls or the Auxiliary rcar of the amplifier( . ctc Connedion. ; lalcr n the-se n. cmtc'tion'c ). The setting will depend upon the sensitivify of the Microphone or Auxilian' progrim source. Generally a setting of seven will be ideal for a standard dynamic microphone and five lbr most program inputs. However as conditions vary , adjust the setting to suit the required perfbrmance levcl tbr your system. it booit the bass response of the anrplifier , turn the conEol towards the higher number setting . To reduce bass response turn the confiol toward the lowcr numberrd setting . [. . . ] Should the condition still apply , the arnplifier will continue to cycle off and on until the condition is removed. This is a feature of the amplifier deriigned to protect the amplifier circuitr. v and the speakers connected to the output. 8 indicate I I tle anplifier POWER Thc switch designated "Power", turns the mains power to the amplifier "ON/OFF. is fumed orr. A lamp will glow Red to CONNECTIONS ' ' FWA Attro tt Ac ATEO 2A AC AT3O IA AC OIRECT OUT (ne2) LTD ? fH-fLINEI cl1lllcl70l100 AUDIO TELEX C(ruNrc IONA 9YDNEY AUSTEALIA PTY 'EE1"-r!Jtl_l, t_r'r o o o o o o o o o o o o_ r -@ TAPE @ &I CH4 1r ::: T-- L_ swrrffio 99QQi r F, ) , R l : t-6j A 1 THREE PIN IEc MAINS INLET z4ol 120 vac with inbuilt fuse in a pull out drawer. The mains cord must be removed bef, ore the drawer can be pultred to expose the fuse. Note the fuse ratings indicated above the IEC connector are the correct AC fuse ratings fbr 240 VAC operation. 2 DIRECT OUTPUT TERMINAL STRIP counting left to right ourputs : C. . . Common connection tbr low impedance 4. . . . . 4 ohm output connection (AT120 only ) 8. . . . . Common connection for constant voltage outpuls 74. . . . 70 volt output 100. . 100 volt output Spare Terminal Spare Terminal [:--] SWITCHED OUTPUT TERMINAL STRIP counting left to right: 6. . . . . 100 volt output connections for speakcr switch 6 5 4 3 2 I 100 volt output connections for speaker switch 5 100 volt output connections for speaker switch 4 100 volt output connections for speaker switch 3 100 volt output connections for speaker swirch 2 100 volt output connections lbr speaker switch I NOTE I For model AT30 there are four only switched speaker ou@ut connections. PERATING INSTRUCTIONS CONNECTIONS ( CONT ) IT SERMS AMPLIFIERS ' + fnpn OUTPUT CONNECTION high impc<lance RCA type phono socket. UICROPHONE INPUTS Four XLR Switchcraft female 3 pin active balanced microphone inpur: . 100 ohms, designated CH4 CH3 CH2 CH L Corrtrcetiorts art : Pin j- I . . . . . active balzurcecl AUXILIARY INPUTS Four RCA CH3 CH2 CHI 6. t . t, vpe single auxiliary inpuls for tape or other high level program \ourcc. designated CH4 NOTE 2 dasignated CHI TO CH4 can be used fbr microphone and auxiliary input sources. It is also possible to connect both microphone and auxiliari' inputr to one channel simultaneously. however their rclative levels to one another u'ill be fixed , as there is one gain control fbr each channel on the front panel. All fbur inputs ACCESSORIES TX3010 MUTTNG MODULE : By means of the TX30l0 all AT Amplifien provide the facility to mute Channels 2 and automatically , from Channels 3 l. 2 or both. Muting is voice switched fronl a nricrophone or auxiliar. v input. It is assumed that tbr mosl applications . microphone inputs would be connected to Channel 1 or 2 and auxiliary. Once tie muting module is installed , any voice input from the microphones or auxiliar_v ilputs in Channel I or 2 wili automaticall-v muls fhannsls 3 & 4 . Instantly the voice input ceases, txrth muted ctrannels will revert to their previous condition. ; INSTALLATION ;To install the TX3010 muting module A. [. . . ] Connect the on/off wires to the spare tenninal on the direct output terminal strip at t}te rear panel of the anplifier. By means of these terminals , the tone generator ma-y be connected to any rernote switch to tum the generator on and ofT. F. Replace the lid and reconnect the mains power. NOTE 3 Full connection and circuit details are supplied with each module. AT AMPLIFIERS FUSE RATINGS FOR 240 VAC. Located on tlte rear panel ; AT30 . . . . 2 ampere. ; ac ac ATl20 . . . 4 anperes NOTE 4 The DC high tension fuse is located on the circuit board . [. . . ]