Internal Adjustments - Apogee BIG BEN User Manual

BIG BEN – User's Guide

Internal Adjustments

We've gone to great lengths to avoid DIP switches and other inaccessible controls on Big Ben, but
there are a few internal jumpers used to configure infrequently modified parameters. See the photo
below for an indication of each jumper's location.
Power On Mode –Jumper P8
1) Jumper P8 set to MANUAL – when AC power is applied to the input, Big Ben does not power
up immediately; to power on the unit, the POWER button must be pressed. This is the default
setting.
2) Jumper P8 set to AUTO – when AC power is applied to the input, Big Ben powers on
immediately; nevertheless, the POWER switch is functional. This setting may be preferred
when a Master switch controls several devices including Big Ben.
Power Switch Disabled – Jumper P27
When a jumper is removed from P8 and installed across P27, the power switch is disabled,
and has no function. As is the case with all electronics, keeping Big Ben powered on at all
times ensures the most stable operation. Power Switch Disabled ensures that the unit is not
accidentally powered off.
SureLock Defeat –Jumper 17
When a jumper is installed across P17 and Big Ben is power cycled, SureLock functionality is
defeated. For those who get nervous when machines silently take over.
Defeat FC (Format Conversion) – Jumper 18
When a jumper is installed across P18 and Big Ben is power cycled, Format Conversion
functionality is defeated and Digital "Black" is sent to all digital audio outputs.
P18
P17
FIGURE 7
12
APOGEE ELECTRONICS
P27
P8