Tascam US-1800 Manual De Usuario

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TASCAM US-1800
  7
2 − Names and Functions of Parts
Front panel
1
STANDBY/ON switch, indicator
Use this switch to turn the power ON and to put the 
unit in standby. When ON, the 
STANDBY/ON
 indicator 
lights green. 
2
 
USB indicator
Lights up orange to indicate a valid USB connection to 
the host computer.
3
  PHANTOM switches
Use these switches to set whether or not +48 V 
phantom power is provided to the 
MIC IN
 jacks (1-4, 
5-8).
Each switch controls four input channels. Phantom 
power is on when the button is pushed in.
CAUTION
Before turning these switches ON or OFF, turn the output 
• 
volume down using the PHONES and MONITOR knobs. 
Depending on the mic, loud noises might be produced 
and damage could be caused to equipment and people’s 
hearing.
Do not connect or disconnect a mic with an input when its 
• 
switch is ON.
Turn a switch ON only when connecting a condenser 
• 
microphone that requires phantom power.
Do not supply phantom power to an unbalanced dynamic 
• 
microphone.
Some ribbon mics can be damaged by phantom power. If 
• 
unsure, do not supply phantom power to a ribbon mic. 
4
  MIC IN (balanced) jacks
These are XLR balanced analog mic input jacks. Use 
the Gain knobs to adjust the input gain level.
(1: GND, 2: HOT, 3: COLD)
5
  GUITAR (unbalanced)/LINE IN (balanced) jacks and 
switches 
These jacks (9-10) are standard TRS analog input jacks. 
When the switch is pressed in, the corresponding jack 
functions as an unbalanced guitar input (
GUITAR
). 
When the switch is out, the corresponding jack 
functions as a balanced input (
LINE IN
). Use the 
corresponding gain knobs to set the gains of the 
inputs.
(Tip: HOT, Ring: COLD, Sleeve: GND)
6
 
Gain knobs and OL indicators (1-10)
Adjust the gain level for Inputs (
1-10
) individually. The 
adjustable range is from –2 dBu to –58 dBu for Mic 
Inputs (
1-8
), from +4 dBu to –42 dBu for Line Inputs 
(
9-10
), and from –6dBV to –52dBV for Guitar Inputs 
(
9-10
). 
The 
OL
 (overload) indicators light when an input signal 
is close to distortion (when –2 dBFS is exceeded). 
7
 
MONITOR knob
 
Adjusts the level of signals output from the MONITOR 
L/R jacks on the rear panel.
8
 
MIX knob
 
Controls the balance of the signal sources being 
output from the PHONES jack and the MONITOR L/
R jacks. With this knob turned to the far left, the unit 
will output the signal input from the MIC IN (1-8) jacks 
and LINE IN (9-14) jacks. With this knob turned to the 
far right, the unit will output the signal received from 
the computer via USB.
9
PHONES jack and knob
Use this standard stereo phone jack to connect stereo 
headphones. This jack outputs the same signal that is 
output from the MONITOR L/R jacks.
Use the 
PHONES
 knob to adjust the headphones 
output level.
CAUTION
Turn the PHONES knob to the minimum volume before 
connecting headphones. Failure to do so could cause sudden 
loud noises and damage hearing, for example.