Mounting Instructions

Install internal components
Digital audio matrix PC2003-A1
6
A6V10430579_en--_b
67 | 173
Fig. 42: PC2003-A1 backup with PCA2014-A1
In case of an amplifier fault, the PCA2014-A1 routs the analog audio output signal
of the faulty amplifier to the backup amplifier. The PCA2014-A1 uses 2 logic control
outputs to select the analog audio output signal. The PC2003-A1 backup switch
routes the 100 V backup input signal to the speaker lines.
Matrix
PC2003
Control
Logic
Backup
Amplifier 1
OUT1
Backup
Input
B1
Amplifier
supervision
and
Backup
switch
1-4
Amplifier 1
Amplifier
Input
A1
B2
B3
Matrix
PC2003
Amplifier 2
Amplifier 3
Amplifier 4
OUT2
OUT3
OUT4
B4
PCA2014
A2
A3
A4
Logic
Output
Logic
Output
Audio
Mux