Power Supply Block Diagram - Ramiaudio LGB605-2 Manuel Utilisateur

Connector 6pts
+Battery
0V
Male Sub-D
9 pts
1
6
-
+
9
5
EXT MODULATION
P.SUPPLY + AMPLI
Note :
Audio modulation for the amplifier may come from :
- Either from the balanced 9pts Sub-D input with a selector switch downstream.
- Or from the LGB605-2 via the DIN 5 pts power supply. In this case it is the Radio Tour modulation.
Attention the two modulations are mixed. If you don't want the Radio Tour modulation, you just have to close completely the
potentiometer marked HP volume on the LGB605-2.
+V
Max
10K Lin
Min
0V
REMOTE VCA MOTO
Rami

POWER SUPPLY BLOCK DIAGRAM

CONVERTER
volume Ext
0FF L
0V
0N L
0FF R
0V
0N R
Same for all VCA controls
+12V
DC/DC
-12V
AMPLI
VCA
class D
LIMITER
VCA L
Control
VCA R
Control
13
+12V
0V
-12V
Volume control Radio Tour Pilot
Audio Input Radio Tour
+
-
Max
10K Lin
Min
REMOTE VCA HP
To LGB605-2
1 5
HP OUT
+V
VCA HP
Control
0V
LGB605-2