Instruction manual

N
SW1
J2
R23
W7
D28
J1A
D24
D22
W10
D27
D26
D32
D31
D77
D76
D34
W4
W6
D75
J3
D60
F2
F1
TB6
TB5
TB4
TB1
TB2
AUX
TRB
TROUBLE
AMP TRB
GF
EXP OPEN
EXP SHORT
AUD1 OPEN
AUD1
SHORT
EXP OUT
POWER
AC TRB
BAT TRB
L
AC
DC IN
DC OUT
BATTERY
AUD2 OUT
AUD1 OUT
EXP OUT
SPARE
C
NO
NC
T
R
B
AUX RET
AUX IN
AUD RET
AUD IN
J4
J5
AUD2 OPEN
AUD2 SHORT
D30
D29
TRANSFORMER
25
70
25
70
25
70
25
70
25
70
D59
AC
1
Figure 9-1B
SPB-160 PC Board
Section 9-3 - 24VDC Power Supply (SAPS)
The Power Supply Module (SAPS) converts 120VAC line voltage to 24VDC output
voltage. The power supply module is capable of converting up to 500W of power and its
output has over current protection.
There is one fuse on the printed circuit board, F1. Fuse F1 is the input fuse for the entire
board. See Figure 9-3, below, for fuse location.
Fuse Rating
F1 10A
Nominal Specifications:
Rated Output 500W
Input Voltage 120VAC
Supply Current (Full Load) @ 120VAC 6.4A
Operating Temperature Range 0 to 49 Degrees C (32-120 Degrees F)
Humidity Range 0 to 85%, Non-condensing
N
L
PS PS+
_
F1
GND
E1
P82798 REV.
T3
C2A
Figure 9-2
Power Supply Module (SAPS)
60