Circuit Descriptions
EN 28 TPN16.2E LA7.
2016-Jul-15
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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, LED/IR receiver and controls.
• +12V, input from the power supply for the panel
common(active mode)
• +12V, input from the power supply for the AMP
• +1V5, from the power supply for the scaler IC NT72453
• +1V1, from the power supply for the scaler IC NT72453
• +1V5, supply voltage for DDR2 (diagram B03B)
• +3V3, genenal supply voltage
• +5V, supply voltage for USB and CAM
• +3V3-TUN, supply voltage for tuner
• +3V3 from the power supply for the scaler IC NT72453
• +5V_SW, input intermediate supply voltage for USB
• +3V3_T2, voltage for Tuner single decoder
• +1V2_T2, voltage for Tuner single decoder
Figures gives a graphical representation of the DC/DC
converters with its current consumptions :
Figure 7-3 DC/DC converters
Connector
Number CN9101 CN8602 CN9101 CN8601 CN9301 CN8101
Description to SSB to panel to SSB to panel to SSB to panel
Pin 16 8 16 12 14 12
1 DIM VLED+ DIM VLED+ DIM VLED+
2 On/off VLED+ ON/OFF n.c. ON/OFF n.c.
3 PS_ON n.c. PS_ON VLED- PS_ON VLED_1
4 n.c. n.c. n.c. VLED- 2D/3D VLED_1
5 GND VLED- GND n.c. GND n.c.
6 GND VLED- GND n.c. GND n.c.
7 GND n.c. GND n.c. GND n.c.
8 GND n.c. GND n.c. GND n.c.
9 +12V-A - +12V-AUDIO VLED- +12V-AUDIO VLED_2
10 +12V-A - +12V-AUDIO VLED- +12V-AUDIO VLED_2
11 +12V - +12V n.c. +12V n.c.
12 +12V - +12V VLED+ +12V VLED+
13 +12V - +12V - +12V -
14 +12V - +12V - +12V -
15 n.c. - 5.2v - - -
16 n.c. - 5.2v - - -
20060_202.eps
NT72453
+5V_SW
500 mA
PWR_ON_2
370 mA
BUCK CONVERTER
TUNER
MAIN CHIP
MAIN CHIP
640 mA
MAIN CHIP
PANEL_T-CON
11mA
SI2166
U201
AO4449
Q701
DV15
NT78822
U201
+5V_SW
+5V_STB
455 mA
PWR_ON_2
TCL_Tuner
DVB-C/T/T2
BUCK CONVERTER
PWR_12V
S2_DEMOD
PWR_ON_2
CI CARD PWR
USB multi-media
POWER protect
AVDD1V2
DV11
Depend on panel
G5250M1T1U
U102
NT72567BG
PCMCIA CARD
+5V_STB
2866 mA(5V)
FB751
K9F1G08U0D
-SIB0
BUCK CONVERTER
1404 mA
PANEL_22"~55"
1mA
FB411
80 mA
FB750
+3V3_TUNER
AD87588
M5723B
U701
MAIN CHIP
10mA
+5V_SW
PANEL_VCC_ON/OFF
FB412
AUDIO AMP
AP3417C
U702
1050mA
POWER SWITCH
DV33
PANEL_VCC
USB
LDO
T2_DEMOD
80 mA
AON4421
Q750
LVDS_VDD
1367 mA
LDO
AZ1117CD
U705
110 mA
POWER SWITCH
+12V_SW
+5V_SW
AUDIO_12V
+5V_SW
1367 mA
VCC_CI
+5V_SW
230 mA
TUNER
PWR_ON_2
285mA
PWR_12V
500 mA
MHL
1367 mA
2581 mA(5V)
230 mA
NT72453
BUCK CONVERTER
LG_Tuner
DVB-S/S2
NAND FLASH
LNB POWER
1.3A
NT72453
TPS54428
U706
CI_PWR_EN
+5V or +12V
MP8126
U202
295 mA
AZ1117_1.35A
U203_SOT-223
1500 mA
AP3417C_1.2A
U703_SOT_23_5
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