Circuit Descriptions
EN 30 TPB1.2HU LA7.
2011-Mar-11
7.2 Power Architecture
Refer to figure Figure 7-4 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 Wiring Diagram 22
" 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
Switching Power
SC4525B
LDO
G1084-3.3V
G912T43U-1.2V
LDO
FX18(Smart Module)
3.3V
Panel T-CON
Standby 3.3V
12V
Audio Amp
24V
Scaler
1.2V
Clock module
Zigbee module
5V
IR/Key
5V
18890_214_100927.eps
101018
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