EV3000
INSTALLATION & COMMISSIONING
amplifiers as well as providing the address information required by the amplifiers to
allow any zoning requirements. A complete list of all amplifier addresses can be
found in Appendix B. Zone numbering is from the bottom frame left hand side upwards.
BGM Linking Options
Each zone amplifier can be connected by way of links to broadcast one of two BGM inputs. The links
for this facility are found on the rear of the 302-4760 PCB. Refer to the Table and Figure below
D3D5
D6
D7
CN4
ac
CN 14
CN 17
CN9
CN 10
CN 11CN 12
CN 15
CN 16
CN 13
LK7
LK8
LK6
LK5
LK1
LK2
LK4
LK3
LK11
LK12
LK10
LK9
LK13
LK14
CN1
ac
CN2
ac
CN3
ac
CN5
ac
CN6
ac
CN7
ac
CN8
ac
LK16
1
2
3
LK15
D4
D1
D2
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
AUX
MUSIC
NEGATIVE
POSITIVE
POSITIVE
NEGATIVE
302-476 B
FAULT
OUTP UT
1-4
FAULT
OUTP UT
5-8
AUX
INPUTS
5-8
AUX
INPUTS
1-4
1
2
3
POSITIVE 27VDC RAIL
NEGATIVE 27VDC RAIL
POSITIVE 27VDC RAIL
NEGATIVE 27VDC RAIL
AUX
MUSIC
AUX
MUSIC
AUX
MUSIC
AUX
MUSIC
AUX
MUSIC
AUX
MUSIC
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
A
B
5 4 3 2 1
AMPLIFIER
ADDRESS
KEY
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
AUX
MUSIC
THIS SECTIONS ADDRESS KEY
& MUSIC LINKS ENLARGED
FOR EXPLANATION PURPOSES
Figure 10: Amplifier Mother Board
8.5.10 40 Watt Amplifier
The 154-0075 (40W) monitored amplifier provides a 100V line output, all necessary circuitry to
interface to the OWS and the attenuation for the Alert signal as required in AS2220. Minimum line
impedance is 250Ω.
Each amplifier is provided with a level adjustment allowing adjustment of output level to each OWS
zone.
N1236
4A
BRD EV3FWA3
POWER
FAULT
VOL ADJ
O/LOAD
TX2
RV2
RV5
RV3
TX1 LINE 100V
LINE MATCHING
OPTO1
FS1
RV1
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
c a
CN1
TB1
U8
U3
U12
U9
U10
U6
U11
U2
U1
U5
U7
C4
Q3
Q7
Q9
RV4
Q5
R8
O/LOAD - FACTORY SET ONLY - O/P LEVEL
Figure 11: 40 Watt Amplifier with Heatsink / Cover & Transformer Removed
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