Circuit Descriptions
7.
7.2
Power Architecture
Refer to figure
for the power architecture of this
platform (DC/DC power conversion).
Figure 7-4 Power architecture of back-end board
7.2.1
Power Supply Unit
Refer to the
for connector information.
Before repair or replacement check whether the main fuse of
the board is broken. Always replace a defective fuse with one
with the correct specifications! This part is available in the
regular market.
The output voltages to the chassis are:
•
+3.3 stand-by/power
•
+24V audio power
•
+12V panel
Connector-15pin
S
witching Power
S
C4525B
LDO
G10
8
4-
3
.
3
V
G912T4
3
U-1.2V
LDO
FX1
8
(
S
m
a
rt Mod
u
le)
3
.
3
V
P
a
nel T-CON
S
t
a
nd
b
y
3
.
3
V
12V
A
u
dio Amp
24V
S
c
a
ler
1.2V
Clock mod
u
le
Zig
b
ee mod
u
le
5V
IR/Key
5V
1
88
90_214_100927.ep
s
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