User manual AUDIO TELEX TX8000

[. . . ] The TX8000 has a separate master output level control. The TX8000 will operate from 240 VAC 50Hz or 110 VAC 60 Hz or 24VDC. Factory preset is 240 VAC. Front Panel Controls /9) a^st lliala io' iO iO' iOi iO iO iO iO 061110 0. xrl0 0. qrl0 0. ;rl0 oarrt0 0. ;. 10 0. ;'10 i. ;rl0 rlr /6) /o) alii YltaLa , lr /o) /o) u3!ritatE rar /o) r'o) als! [. . . ] If the LED's in the red zone are lit continually, then the output level controls (or the input gain contols) should be tumed courter-clockwise to reduce the output level. Too much output level can cause signal distortion and a mismatch with the device that the mixer is driving. Headphone OUtpUt SOCket A ll4' RTS stereo socket is provided for the connection of monitor headphones. The output level to the headphones is a nominal 3. 5 volts @ 600 ohms and is connected before the master output level controls so adjusting the output level controls will not effect the headphone ou@ut level. 7. PoWer Switch: The switch marked "Power" turns AC mains power'On' and 'Ofl to the TX8000. When the switch is in the "On" position, a red neon will glow in the body of the switch. If the TX8000 is connected lo a24 volt DC supply, this switch will not effect the operation of the TX8000 from the DC supply. If both AC and DC are connected, then the TX8000 will continue tc operate normally when this switch is tumed 'OfP. The DC supply needs to be disconnected from the rear panel to completely 'turn off the TX8000. Rear Panel Features ofthe rear panel are as follows: l. 3 Pin IEC AC MainS POwer The operating voltage is 240 VAC @ 50 Hz or 110 VAC @ 60 Hz. The AC power voltage level is not externally user adjustable but is factory pre-set. The inlet is equipped with an inbuilt AC fuse holder fitted with a I Amp fuse plus a spare. Please ensure that the mains power cord is disconnected beforr attempting to check or replace this fuse. lnlet I ACC9SS -t- POft This port is to allow for external cable egress for accessories such as the ATC5488 tone generator. 24 Volt DC Power Supply Connection: DC connection is via this 2. 1mm socket with + (hich) on the centre pin and (low) on the outer pin. When DC is connected to these terminals the TX8000 will continue to operate regardless of the position o1 the AC power switch on the front panel. To turn offDC power to the TX8000, remove the connecting cables from these two posts. The maximum DC current drain is 350 mA This is an active balanced XLR connection with a nominal level The pin connections are; pin #l-earth; pin #2-active (high, +); pin #3-active (low, ). +. MaSter Output Gonnectiofl] of 1. 5 volts @ 600 ohms. s. Dual RCA Sockets For Output To A Tape Recorderl summed to mono and is connected before the master output level control so the tape output level is not affected by adjustments tc the master output level control. Nominal 700mV @ tOK ohms. Active Balanced, XLR Sockets For The Microphone lnputs: with ohms (see the 'Other lnternal Adjustments' section on the last page of this manual for details about the trim level control available for each channel). Pin connections are: pin #l-earth; pin #2-active (high, +); pin #3-active (low, -). Phantom power of +18 volts is an input sensitivity of 0. 6mv @200 available on all microphone inputs. [. . . ] Installation should only be attempted by a qualified technician. Always turn offthe AC power and remove the AC power cord before attenpting to access the inside of the TX8000. g Phantom Power This 3 pin link is located on the output board directly behind the Mic #8 XLR socket on the rear panel. The default setting is with the link in the 'on' position, shorting the centre pin and the pin closest to the rear of the TX8000. To turn phantom power off, move the link to short the centre pin and the pin closest to the front of the TX8000. Defea[ lnput Sensitivity Adjustment These trim pots are located inside the TX8000 on the input circuit board at the rear of the mixer and are labeled R*l-R*8 to indicate channels l-8 respectively. [. . . ]