User guide

AMP V Series User Guide

Line Level Calibration Instructions

6. Place DIP section 1 in the up position and return unit to service.

7. Only one auto-calibration attempt may be made for each cycling of

AC power to the unit. Once the Line Level Calibration DIP switch

has been placed in the CAL position, it is necessary to cycle the

power before that DIP switch will be functional again, even if a

calibration attempt was unsuccessful.

If you want to calibrate again, turn off the power to the unit and repeat

steps 1 through 6.

Reference Level

DIP switch sections 2 and 3 determine the Reference Level, which

adjusts the level of the input signal and the resultant level displayed on

the LED bargraphs. Factory setting is +4 dB. See DIP switch diagram

below for settings.

Bar Graph Display Mode

DIP switch sections 4 and 5 determine how peak levels are displayed

for the associated meters on the front panel.

The four possible settings are:

• VU Only,

• VU-PPM Floating Segment,

• PPM Only, and

• PPM-PPM Floating Segment.

The VU Only selection has a VU floating segment when a Peak Hold

value is selected using the Internal 10-Position DIP Switch Module (see

Figure 1–12 on page 20). The factory default setting is VU-PPM Floating

Segment.