360 Systems MAXX-6T - Manual (Page 121)

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MAXX 6T Owner’s Manual Page 121
APPENDIX H - AUDIO LEVEL CALIBRATION
The input gain and output gain of the analog audio circuits are factory calibrated to a +4 dBu
standard. Each circuit includes a trim pot with a range of approximately ±2.5 dB. The following
procedures may be used to calibrate these for unity gain. The audio board must be partially
removed from the chassis to perform this procedure.
1. Power off the unit. REMOVE BOTH POWER CORDS
2. Remove the Chassis top by depressing the two blue release button, then sliding back and
up.
3. The Audio board is the left most PCI card viewed from the front of the unit. Remove the PCI
hold down screw and rock the board up, being careful not to overextend the cables attached
to it.
4. Configure the jumpers according to the ANALOG setting. See Figure 49
Refer to Figure 49 for the location of trim pots and jumper blocks referred to in the calibration
procedures. Table 4 Indicates mapping to audio channels.
Figure 49 - Audio Board Trimpot Location
R116
R101
R86
R71
R148
R131
R10 R25