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no.
Descr.
Pin
5
6
7
8
9
10
11
12
13
7.3
DC/DC Converters
The on-board DC/DC converters deliver the following voltages
(depending on set execution):
•
+5V-STANDBY, permanent voltage for the Stand-by
controller
•
+3V3-STANDBY, power supply for LED/IR receiver and
controls
•
+12V, input from the power supply for the panel common
(active mode)
•
+12V, input from the power supply for the amplifier
•
+1V5, supply voltage for DDR
•
+3V3, general supply voltage
+5VSB
POWER
VCC_5V
BOARD
P12V
P24V
Connector
42"
CN8101
CN9101
to panel
to SSB
12
14
n.c.
GND
n.c.
GND
n.c.
GND
n.c.
GND
VLED_2-
+12V_AUDIO
VLED_2-
+12V_AUDIO
n.c.
+12V
VLED_2+
+12V
-
+12V_AL
U701 AP1117E33L-13-77
Max. 1A
Q705 AO4449-7A
U704 G5196R41D
Max. 6A
U705 G5196R41D
Max. 6A
U707 AT1528P11U
Max. 2A
U702 AP1117E33L-13-77
Max. 1A
U708 AZ1117D
Max. 1A
U703 G5312QN1U
Max. 6A
Q403 AO4449-7A
Audio Amplifier
Figure 7-3 DC/DC converters [1]
Circuit Descriptions
50"
CN8101
CN9301
to panel
to SSB
12
14
n.c.
GND
n.c.
GND
n.c.
GND
n.c.
GND
VLED_2
+12V_AUDIO
VLED_2
+12V_AUDIO
n.c.
+12V
VLED+
+12V
-
+12V
•
+3.3V-TUN, supply voltage for tuner
•
+3.3V, supply voltage for Headphone AMP
•
+5V-USB, input intermediate supply voltage for USB
Power
•
+3V3 from the power supply for the scaler IC
MSD8560QV-XZ
Figures gives a graphical representation of the DC/DC
converters with its current consumptions:
3V3_STB
VCC_1V2
VCC_1V2_CPU
DDR_1V5
VCC_3V3
U706 G9141T11U
Max. 0.6A
TU_3V3
USB_5V
PANEL LVDS Power
back to
div. table
TPS14.4A LA
7.
55"
CN8501
CN902
to panel
to SSB
12
13
LED_10
24VA
n.c.
24VA
n.c.
GND
LED_9
GND
LED_8
GND
LED_7
12V
n.c.
12V
VLED
DIM
-
ON/OFF
VCC_1V8
EN 25
19740_202.eps
2014-Jul-11
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