BSS Audio FDS-318, User Manual

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12.0 Service Section
12.1 Chassis/0V
Removal
!!! CAUTION - Important Notes !!!
SERVICE SECTION
The FDS-318 has the signal 0v ground connected to the metal chassis, which
in turn is connected to the safety ground. In the unlikely event that you need to
remove this link, or if you need to add a small impedance to reduce earth loop
currents, then proceed as follows.
Since both the audio inputs and outputs are wired fully balanced, we strongly
recommend that you fully recheck all wiring for correctness, prior to
proceeding.
Under no circumstances should the incoming ground wire be disconnected
from the power line cord, or from the internal chassis connection as an
alternative to this procedure.
•
Disconnect the mains power cord and remove the units' top cover.
•
Locate the long green wire positioned at the rear of the unit, which is
terminated at the rear panel metalwork at a point in between the input and
output connectors.
•
Remove the end of this wire link from the chassis connection, fold over, and
insulate fully .
•
The signal/0V ground is now isolated for the chassis.
The other green wire terminated onto this chassis bolt is connecting the
output XLR Pin 1 connections to chassis. Under no circumstances is it
recommended that this link is removed.
!!! WARNING - Refer all servicing to qualified service personnel !!!
Risk of electric shock if the unit is opened.
BSS Audio accepts no responsibility for injury
subsequent to opening of the unit.