Tube Tech CM1A Comp - Manual (Page 6)

LYDKRAFT ApS
Mose Allé 20, DK 2610 Rødovre
Denmark
6
ADJUSTMENT OF THE LED DISPLAY READING "VU":
1)
Switch the METER-selector to Output.
2)
Apply a signal of 1 kHz, 0,0 dBU into the input of the compressor.
3)
Adjust the GAIN-control to an output-reading of +4,0 dBU.
4)
Adjust P10 to a LED display reading of 0 VU.
The -1 LED shall just turn off and the 0 LED shall just turn on.
ADJUSTMENT OF THE LED DISPLAY READING "COMPRESSION":
1)
Turn the THRESHOLD-control fully counter-clockwise.
2)
Switch the METER-selector to Comp.
3)
Set the RATIO-control at 2:1
4)
Apply a signal of 1 kHz, 0,0 dBU into the input of the compressor.
5)
Adjust the GAIN-control to an output-reading of 0,0 dBU.
6)
Adjust P 9 until the LED display is reading 0 VU.
The -1 LED shall just turn off and the 0 LED shall just turn on.
7)
Apply a DC-voltage of +250,0 mV into the side chain jack socket and observe that the
output level has dropped to -10,0 dBU. If this is not the case, adjust the compression
tracking (see above)
8)
Adjust P 8 until the LED display is reading -10,0 VU.
The -20 LED shall just turn off and the -10 LED shall just turn on.
9)
Remove the DC-voltage from the side chain jack socket.
10)
Repeat step 6 - 9.
(130920)