Ampac EV3000 - 120 Watt Amplifier

Page 19
EV3000 INSTALLATION & COMMISSIONING
8.5.11 120 Watt Amplifier
The 154-0077 (120W) amplifier option requires two amplifier positions and a minimum line
impedance of 83Ω.
As in the case of the 40 Watt amplifier the output level can be adjusted by way of RV2 on the front of
the 302 5690 card. RV1 And 2 on both boards are factory set and should not be adjusted.
TO API 578A BACKTO API 578A FRONT
ADJ.
ADJ.
OVERLOAD
I0V
I-VE
HIGH VOLTAGEDANGER HIGH VOLTAGEDANGER
120 WATT AMPLIFIER API 569 D
O/LOAD
O/P LEVEL
IC4
IC5
IC2
IC11
TP3
+
+
+
Q7
Q9
Q6
Q5
Q4 Q3 Q2
RV3
LED3
L2
L1
+
+
+
+
+
+
+
+
+
Q18 Q16
Q15
Q14
Q12
Q11
GAIN
RV1
++
+ +
IC9
IC6 IC1
+
+
+
Q20
CN1
c a
A6
TP1
LED1
T1
CN2
RV2
CN4
+ +
Q1 IC3
IC8
CN3
+
C21
+
LED2
Q13
I+VE
TP2
2A
F2
2A
F1
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
PWR
RV1, 2 FACTORY SET
Figure 12: 120 Watt Amplifier
WARNING HIGH VOLTAGE
10 AMP
API-570-D
DC-DC CONVERTER120 WATT AMPLIFIER
2
4
+
+
T1
1
8 916
IC6
+
LED1
IC7
F1
IC1
ac
CN2
R10
+
IC2
IC8
Q10
LED3
LED2
Q1
Q2
+
++++
++++
++++
++++
+
+
+
RV2
RV1
IC5
+
T2
STUD2
STUD1
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
POWER
P/S SHUTDOWN
FAULT
RV1, 2
FACTORY SET ON;Y
Figure 13: 120 Watt Amplifier DC to DC Converter
OVERLOAD
LED
RED
DC SUPPLY
FUSE
10 AMP
POWER OUTPUT HEATSINK
302-569
302-570
TOP SHIELD PLATE
FAULT
LED
RED
POWER
ON
GREEN
SHUT
DOWN
YELLOW
WHENEVER REMOVING
OR
INSTALLING BOARDS
-TURN OFF POWER-
OTHERWISE
DAMAGE MAY OCCURE
WARNING
INDICATORS
Figure 14: 120Watt Complete Amplifier Assembly