Circuit Descriptions
7.
7.3
DC/DC Converters
The on-board DC/DC converters deliver the following voltages
(depending on set execution):
•
+5VSB, permanent voltage for the Stand-by controller
•
3V3_STB, power supply for LED/IR receiver and Keyboard
•
+12V, input from the power supply for the panel common
(active mode)
•
VCC_3V3 voltage for EMMC when TV on
•
DDR voltage for DDR
•
TU_3V3, supply voltage for tuner
•
USB_5V, input intermediate supply voltage for USB Power
•
AMP_24V from the power P24V and 3V3_STBfor the
AUDIO AMP
•
VCC_5V,voltage for WIFI
•
+5VSB,voltage for For MHL Power
Figures gives a graphical representation of the DC/DC
converters with its current consumptions:
Figure 7-3 DC/DC converters [1] (6xx1 series)
6
GND
n.c.
GND
n.c.
GND
n.c.
7
GND
n.c.
GND
n.c.
GND
n.c.
8
GND
+VLED2
GND
+VLED2
GND
+VLED2
9
12VA
+VLED2
12VA
+VLED2
12VA
+VLED2
10
12VA
+VLED2
12VA
+VLED2
12VA
+VLED2
11
+12V
n.c.
+12V
-
+12V
-
12
+12V
VLED
+12V
VLED
+12V
VLED
13
+12V
-
+12V
-
+12V
-
14
+12V
-
+12V
-
+12V
-
15
+5V
-
+5V
-
+3.5V
-
16
+5V
-
+5V
-
+3.5V
-
Number
Connector
CN9101
CN8601
CN9301
CN8101
CN9101
CN8101
Description to SSB
to panel
to SSB
to panel
to SSB
to panel
Pin
16
12
16
12
16
12
12V
12V
GND
16
15
14
U702 AZ1117D
VCC_1V2_CPU
Max. 6A
Max. 6A
VCC_1V2
U704 G5196R41D
DDR_1V5
U707 AT1528P11U
Max. 2A
U705 G5196R41D
4
24V
Power Board Input : +5VSB, P12V, P24V
10
3
POWER
BOARD
5
GND
Q705 AO4449-7A
12V
VCC_5V
Function
GND
7
5.2V
24V
5.2V
PWR_ON
12V
12
6
2D_3D *
DIM
11
1
2
13
Pin
8
+5VSB
GND
9
BL_ON_OFF
U701 AP1117E33L-13-77
Max. 1A
3V3_STB
VCC_1V8
U706 AP1117E18G-13
Max. 0.6A
TU_3V3
VCC_3V3
Max. 1A
USB_5V
P24V
Q403 AO4449-7A
U703 G5312QN1U
P12V
PANEL LVDS Power
Audio Amplifier
Max. 6A
U708 AZ1117D
Max. 1A
U709 AP1117E33L-13-77
Max. 1A
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