Philips 32PHT4131/12 - DC;DC Converters

Circuit Descriptions
EN 34 TPN16.3E LA7.
2016-Oct-28
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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):
• +5V-STANDBY, permanent voltage for the Stand-by
controller.
• DV33SB, voltage forIR/Key board
• +12V, input from the power supply for the panel
common(active mode)
• +12V, input from the power supply for LNB supply
• +1V5, from the power supply for the scaler IC NT72562
• +3V3, from the power supply for the scaler IC NT72562
• +1V5, supply voltage for DDR2
• +3V3-TUN, supply voltage for tuner
• +5V_SW, input intermediate supply voltage for USB
• AUDIO_12V for the AUDIO AMP
Figures gives a graphical representation of the DC/DC
converters with its current consumptions :
Figure 7-3 DC/DC converters
Number
Connector
CN9101 CN8605 CN9101 CN8602 CN9101 CN8601
Description to SSB to panel to SSB to panel to SSB to panel
Pin166 166 1612
1 DIM +VLED DIM +VLED DIM +VLED
2 BL_O/F +VLED BL_O/F +VLED BL_O/F n.c.
3 n.c. n.c. PS_ON n.c. PS_ON -VLED1
4 n.c. n.c. n.c. n.c. n.c. -VLED1
5 GND -VLEDGND -VLEDGND n.c.
6 GND -VLEDGND -VLEDGND n.c.
7 GND - GND - GND n.c.
8 GND - GND - GND n.c.
9 +12V_Audio - +12VA - +12VA -VLED2
10 +12V_Audio - +12VA - +12VA -VLED2
11 +12V - +12V - +12V n.c.
12 +12V - +12V - +12V +VLED
13 +12VA - +12V - +12V -
14 +12VA - +12V - +12V -
15 n.c. - +5v - +5v -
16 n.c. - +5v - +5v -
PWR_ON_2
MAIN CHIP
MAIN CHIP
TUNER
PANEL_T-CON
MAIN CHIP
640 mA
11mA
+5V_SW
DV15
AO4449
Q701
+5V_STB
PWR_ON_2
BUCK CONVERTER
TCL_Tuner
DVB-C/T/T2
PWR_12V
CI CARD PWR
PWR_ON_2
POWER protect
USB multi-media
DV11
Depend on panel
PCMCIA CARD
G5250M1T1U
U102
NT72562
+5V_STB
FB751
K9F1G08U0D
-SIB0
BUCK CONVERTER
1mA
FB411
PANEL_22"~55"
1404 mA
AD87588
FB750
80 mA
SY8104ADC
U713
MAIN CHIP
+3V3_TUNER
PANEL_VCC_ON/OFF
10mA
+5V_SW
AUDIO AMP
FB412
1945mA
SY8088AAC
U702
POWER SWITCH
USB
DV33
PANEL_VCC
DV33SB
+5V_STB
UP0113
U712
LDO CONVERTER
AON4421
Q750
LVDS_VDD
285mA
LDO
1367 mA
POWER SWITCH
110 mA
+5V_SW
1367 mA
AUDIO_12V
+5V_SW
SPEC 5.5A(5V)
Act :
VCC_CI
+5V_SW
SPEC 4 A (1.15V)
Act :
SPEC 1.5 A (3.3V)
Act :
285mA
PWR_ON_2
TUNER
PWR_12V
SPEC 1 A (3.3V)
Act : 435 mA
SPEC 1 A (CI power)
Act : 80 mA
SPEC 1.35 A (3.3V)
Act : 230 mA
SPEC 7A
BUCK CONVERTER
PWR_12V
1367 mA
SPEC 1 A (1.5V)
Act : 419 mA
SPEC 500mA (High 18V / Low 13V)
Act :
MP8124GD-Z
U202
2581 mA(5V)
13V/18V SW & LNB EN
TUNER
S2_Tuner
DVB-S/S2
NT72562
230 mA
LG_Tuner
DVB-S/S2
BUCK CONVERTER
NAND FLASH
1.3A
NT72562
RT6206B
U706
+5V or +12V
CI_PWR_EN
AZ1117_1.35A
U203_SOT-223
500 mA
SY8088AAC
U703_SOT_23_5
BUCK CONVERTER
NT72562
+5V_SW
20210_202.eps