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EN 32
7.
QM16.4E LA
7.2.3
Connector overview
Table 7-1 Connector overview
7.3
DC/DC Converters
The on-board DC/DC converters deliver the following voltages
(depending on set execution):
•
+STB_PWR, permanent voltage for the Stand-by Power
system and WIFI.
•
+3V3SB,voltage for scaler,EMMC,IR/LED reciver,Key
board
•
+12V, input from the power supply for the panel
common(active mode)
•
+12V, input from the power supply for LNB supply
•
LDO_PWR,DVDD3V3, voltage for EMMC when TV on
•
DDRV, VCCK, voltage for DDR
•
AVD3V3,AVDD1V0, supply voltage for scaler MT5593
2016-Apr-1
Circuit Descriptions
Connector
Number
CN9101
CN8602
Description
to SSB
to panel
Pin
14
8
1
DIM
VLED+
2
On/off
VLED+
3
PS_ON
n.c.
4
PS_ON
n.c.
5
GND
VLED-
6
GND
VLED-
7
GND
VLED+
8
GND
VLED+
9
+12V-AUDIO
-
10
+12V-AUDIO
-
11
+12V
-
12
+12V
-
13
+12V
-
14
+12V
-
15
-
-
16
-
-
+12V_AU
U712 G9091
STB_PWR
DC/DC U4251
AP7362
DC/DC U704
+12V
RT7299B
DC/DC U708
DC/DC U751
MP8124
U102
5V_SW
APL3511CBI
U710
RT8079ZOW
U710
AZ1084CS2
U705
Figure 7-3 DC/DC converters
CN9101
CN8603
CN9101
to SSB
to panel
to SSB
16
12
16
DIM
VLED+
DIM
BL_ON/OFF
n.c.
BL_ON/OFF
PS_ON
VLED-
PS_ON
3D_ON
VLED-
A3D
GND
VLED-
GND
GND
n.c.
GND
GND
n.c.
GND
GND
VLED-
GND
+12V-AUDIO
VLED-
+12V-A
+12V-AUDIO
VLED-
+12V-A
+12V
n.c.
+12V
+12V
VLED+
+12V
+12V
-
+12V
+12V
-
+12V
+3.5
-
+5v
+3.5
-
FLAG
•
+5V_SW, USB port supply voltage
•
+3V3_TUNER, supply voltage for tuner
•
+5V-USB, input intermediate supply voltage for USB
Power
•
PVDD from the power +12V_AU for the AUDIO AMP
•
DV12, +3.3V_T2, +3.3VA_T2 voltage for Demodulator IC
channel
•
Wi-Fi_VCC,voltage for WIFI
Figures gives a graphical representation of the DC/DC
converters with its current consumptions :
U601 TAS5760LD
WIFI VCC 3.3V/1.2A
PGOOD
DVDD3V3
AVDD3V3
back to
div.table
CN8603
to panel
12
VLED+
n.c.
VLED-
VLED-
VLED-
n.c.
n.c.
VLED-
VLED-
VLED-
n.c.
VLED+
-
-
-
-
3V3SB
VCCK 1.02V
+5V_SW
LNB POWER Supply
CI_VCC
USB2.0 500mA
USB3.0 900mA
DDRV 1.5V
LDO_PWR
DV12
AVDD1V0
+3V3_TUNER
20050_202.eps
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