•
LED backlight:
- side-view LED without scanning: PSL power panel
- side-view LED with scanning: PSLS power panel
- direct-view LED without 2D-dimming: PSL power panel
- direct-view LED with 2D-dimming: PSDL power panel.
PSL
stands for
P
ower
S
upply with integrated
L
ED-drivers.
PSLS
stands for a
P
ower
S
upply with integrated
L
ED-drivers with added
S
canning functionality (added microcontroller).
PSDL
stands for a
P
ower
S
upply for
D
irect-view
L
ED backlight with 2D-dimming.
6.3 DC/DC Converters
The on-board DC/DC converters deliver the following voltages(depending on set execution):
•
+5V-SB, permanent voltage for the Stand-by Power system
•
+3V3-STANDBY,voltage for IR/Key board
•
+12V, input from the power supply for the panel common(active mode)
•
+12V, input from the power supply for LNB supply
•
+1V8, voltage for EMMC when TV on
•
TUNER_3V3, supply voltage for tuner
•
+5V-SW, input intermediate supply voltage for USB Power
•
+12V-AUDIO1 for the AUDIO AMP
+1.2V_DEMOD voltage for Demodulator IC channel decoder
•
+3V3SBI,voltage for WIFI
6.3.1 Power tree
F
B
703
FB701
DCDC
18V->12V
U701
LDO
3V3->1V1
LDO
3V3->1V2
100mA
450mA
Demod.
DTMB
PWR
Switch
USB2.0+3.0
USB
1.5A
1.5A
LDO
5V->3V3
1117
0.47A
FRC3V3
DC/DC
5V->1V8
470mA
FRC3V3
600mA
FRC1V8
STB
3V3
STB
1V05
Reserve
LDO
5V->3V3
LDO
3V3->1V05
100mA
500mA
VCCK
DCDC
18V->5V
POWER TREE
DCDC
5V->1V5
PWR
Switch
340mA
1000mA
PWR
Switch
1.86A
DCDC
18V->1V0
DDR_Power
STR_mode
6A
STB
5V
0.5A
0.24A
0.4A
FRC0.9V 4A
DCDC
12V->0V9
100mA
4A
FB708
DVDD3V3
Audio18V
0.85A
DVDD3V3
3.06A
+
18V
MHL
+SW5V
Reserve for 12V
AMP_20W
RL
Reserve for 18V
for cost down
Panel
LDO
5V->3V3
1084_263
500mA
PWREN
Q706
Power
Board
12V~18V
Main_18V
PWR
Switch
PWR
Switch
Q704
LDO
3V3->1V05
100mA
eMMC
LDO
3V3->1V8
100mA
AVDD
AU_18V
Ambi-Light
Содержание 43PUG6102/77
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