Philips 4101 Series Service Manual page 28

EN 28 7. TPN16.2E 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, 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
AUDIO_12V
PWR_12V
1404 mA
1367 mA
500 mA
2016-Jul-15
Circuit Descriptions
Connector
Number CN9101 CN8602
Description to SSB to panel
Pin 16 8
1 DIM VLED+
2 On/off VLED+
3 PS_ON n.c.
4 n.c. n.c.
5 GND VLED-
6 GND VLED-
7 GND n.c.
8 GND n.c.
9 +12V-A -
10 +12V-A -
11 +12V -
12 +12V -
13 +12V -
14 +12V -
15 n.c. -
16 n.c. -
BUCK CONVERTER
BUCK CONVERTER
+5V_STB
M5723B
TPS54428
2866 mA(5V) U701
285mA
U706
PWR_ON_2
PWR_ON_2
POWER SWITCH
+5V_STB AO4449
Q701
2581 mA(5V)
PWR_ON_2
Figure 7-3 DC/DC converters
CN9101 CN8601 CN9301
to SSB to panel to SSB
16 12 14
DIM VLED+ DIM
ON/OFF n.c. ON/OFF
PS_ON VLED- PS_ON
n.c. VLED- 2D/3D
GND n.c. GND
GND n.c. GND
GND n.c. GND
GND n.c. GND
+12V-AUDIO VLED- +12V-AUDIO
+12V-AUDIO VLED- +12V-AUDIO
+12V n.c. +12V
+12V VLED+ +12V
+12V - +12V
+12V - +12V
5.2v - -
5.2v - -
• +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 :
DV11
1050mA
11mA
+5V_SW
1500 mA
LDO
+5V_SW
AZ1117_1.35A
U203_SOT-223
230 mA
230 mA
POWER protect
+5V_SW
G5250M1T1U
U102
80 mA 80 mA
CI_PWR_EN
LDO
+5V_SW AP3417C
U702
640 mA
BUCK CONVERTER
AZ1117CD
U705
BUCK CONVERTER
+5V_SW AP3417C_1.2A
U703_SOT_23_5
295 mA
110 mA
PWR_ON_2
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
CN8101
to panel
12
VLED+
n.c.
VLED_1
VLED_1
n.c.
n.c.
n.c.
n.c.
VLED_2
VLED_2
n.c.
VLED+
-
-
-
-
AUDIO AMP
1.3A
AD87588
MAIN CHIP
NT72453
MAIN CHIP NAND FLASH
K9F1G08U0D
NT72453
-SIB0 1mA
10mA
USB multi-media
USB MHL
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
NT72567BG
370 mA
S2_DEMOD
T2_DEMOD
SI2166
AVDD1V2 NT78822
U201
U201
455 mA
MAIN CHIP
NT72453
DV15
PANEL_T-CON
FB411
LVDS_VDD
PANEL_22"~55"
+5V or +12V
1367 mA
FB412
LNB POWER
+12V_SW
MP8126
U202
500 mA
20060_202.eps