Table of Contents
Advertisement
EN 34
7.
TPN16.3E 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):
•
+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
AUDIO_12V
PWR_12V
1404 mA
1367 mA
2016-Oct-28
Circuit Descriptions
Connector
Number
CN9101
CN8605
Description to SSB
to panel
Pin
16
6
1
DIM
+VLED
2
BL_O/F
+VLED
3
n.c.
n.c.
4
n.c.
n.c.
5
GND
-VLED
6
GND
-VLED
7
GND
-
8
GND
-
9
+12V_Audio
-
10
+12V_Audio
-
11
+12V
-
12
+12V
-
13
+12VA
-
14
+12VA
-
15
n.c.
-
16
n.c.
-
BUCK CONVERTER
BUCK CONVERTER
+5V_STB
SY8104ADC
RT6206B
SPEC 5.5A(5V)
U713
285mA
U706
Act :
PWR_ON_2
LDO CONVERTER
+5V_STB
UP0113
U712
285mA
POWER SWITCH
+5V_STB
AO4449
Q701
2581 mA(5V)
BUCK CONVERTER
PWR_12V
MP8124GD-Z
U202
Figure 7-3 DC/DC converters
CN9101
CN8602
to SSB
to panel
16
6
DIM
+VLED
BL_O/F
+VLED
PS_ON
n.c.
n.c.
n.c.
GND
-VLED
GND
-VLED
GND
-
GND
-
+12VA
-
+12VA
-
+12V
-
+12V
-
+12V
-
+12V
-
+5v
-
+5v
-
•
+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 :
DV11
SPEC 4 A (1.15V)
Act :
PWR_ON_2
DV33SB
SPEC 1.5 A (3.3V)
Act :
+5V_SW
SPEC 7A
PWR_ON_2
LDO
+5V_SW
AZ1117_1.35A
U203_SOT-223
SPEC 1.35 A (3.3V)
230 mA
Act : 230 mA
POWER protect
SPEC 1 A (CI power)
Act : 80 mA
+5V_SW
G5250M1T1U
U102
80 mA
CI_PWR_EN
BUCK CONVERTER
SPEC 1 A (3.3V)
+5V_SW
SY8088AAC
Act : 435 mA
U702
640 mA
BUCK CONVERTER
SPEC 1 A (1.5V)
Act : 419 mA
SY8088AAC
+5V_SW
U703_SOT_23_5
110 mA
PWR_ON_2
SPEC 500mA (High 18V / Low 13V)
Act :
13V/18V SW & LNB EN
Depend on panel
FB751
POWER SWITCH
+5V_SW
PANEL_VCC
AON4421
PWR_12V
Q750
1367 mA
FB750
PANEL_VCC_ON/OFF
back to
div. table
CN9101
CN8601
to SSB
to panel
16
12
DIM
+VLED
BL_O/F
n.c.
PS_ON
-VLED1
n.c.
-VLED1
GND
n.c.
GND
n.c.
GND
n.c.
GND
n.c.
+12VA
-VLED2
+12VA
-VLED2
+12V
n.c.
+12V
+VLED
+12V
-
+12V
-
+5v
-
+5v
-
AUDIO AMP
1.3A
AD87588
MAIN CHIP
NT72562
1945mA
MAIN CHIP
NAND FLASH
11mA
K9F1G08U0D
NT72562
-SIB0
10mA
USB multi-media
USB
500 mA
TUNER
TUNER
LG_Tuner
TCL_Tuner
DVB-S/S2
DVB-C/T/T2
+3V3_TUNER
PCMCIA CARD
VCC_CI
CI CARD PWR
MAIN CHIP
DV33
NT72562
MAIN CHIP
NT72562
DV15
TUNER
S2_Tuner
DVB-S/S2
PANEL_T-CON
FB411
LVDS_VDD
PANEL_22"~55"
+5V or +12V
1367 mA
FB412
1mA
20210_202.eps
Hide quick links:
Advertisement
Table of Contents
