Tube-tech SMC 2B Multiband Opto Compressor User Manual download pdf (Page 3)

Lydkraft ApS

Mose Allé 20, DK2610 Rødovre

Denmark

ADJUSTMENT PROCEDURE:

CAUTION:

Before making any adjustment let the unit heat-up at least 10 min.

Always check the DC voltages at the power supply.

1) The DC voltage in TP201 shall be +280V (265-295).

2) The DC voltage in TP203 shall be +15,0V (14,7-15,3).

3) The DC voltage in TP204 shall be -15,0V (14,7-15,3).

ADJUSTMENT OF PSU:

1) The DC voltage in TP202 shall be +240V.

Adjust with P202.

THE GRE SHALL BE MARKED 1.005-1.175

ADJUSTMENT OF BASIC GAIN:

1) Set the “OUTPUT GAIN” on “+10”.

2) Set the Low-Mid and High “Gain” on “+10”.

3) Apply a signal of 1 kHz, -20,0 dBU to input.

9) Adjust the preset “Gain” P1 (P101) (on amp/psu PCB) to an output reading of 0,0 dBU.

ADJUSTMENT OF COMPRESSION:

LOW BAND:

1) Turn all the THRESHOLD-controls fully counter-clockwise.

2) Turn the LOW BAND GAIN-control fully clockwise.

3) Turn the MID BAND and HIGH BAND GAIN-control fully counter-clockwise.

4) Set the X-OVER LOW at 300 (1,2k).

5) Set the X-OVER LOW multiplier at x4. (030318)

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Tube-tech SMC 2B Multiband Opto Compressor User Manual Page 3