Philips 43PUG6102/77 Service Manual page 23

• 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 Power Supply with integrated LED-drivers.
PSLS stands for a Power Supply with integrated LED-drivers with added Scanning functionality (added microcontroller).
PSDL stands for a Power Supply for Direct-view LED 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
POWER TREE
Power
Board
12V~18V
U701
Main_18V
DCDC
18V->12V
AU_18V
Reserve for 12V
DCDC
18V->5V
FB708
PWR
Switch
Reserve for 18V
Q704
for cost down
0.4A
0.5A
1.86A
PWR
Switch
FB701
0.85A
STB
5V
+SW5V
Q706
4A 3.06A
1.5A
0.47A
0.24A
100mA
PWR
Switch
340mA
PWR
Switch
500mA
PWREN
Audio18V
AMP_20W
RL
Ambi-Light
Panel
DVDD3V3
LDO
5V->3V3
LDO
1084_263
3V3->1V8
LDO
3V3->1V05
LDO
3V3->1V1
LDO
3V3->1V2
PWR
USB2.0+3.0
Switch
LDO
FRC3V3
5V->3V3
1117
DC/DC
5V->1V8
DCDC
12V->0V9
LDO LDO
STB
5V->3V3 3V3->1V05
3V3
DDR_Power
DCDC
STR_mode
5V->1V5
1000mA
MHL
500mA
VCCK 6A
DCDC
18V->1V0
DVDD3V3 100mA
eMMC 100mA
100mA
AVDD
Demod. 450mA
DTMB 100mA
USB 1.5A
FRC3V3 470mA
FRC1V8 600mA
FRC0.9V 4A
STB
1V05
Reserve