Philips 4500 Series Service Manual page 22

EN 22 7. TPS15.2A 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
• +3V3-STANDBY, power supply for 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 amplifier
• +1V5, supply voltage for DDR
12V
2015-May-01
Circuit Descriptions
40"
no. CN8601 CN9101
Descr. to panel to SSB
Pin 12 16
1 VLED+ DIM
2 n.c. ON/OFF
3 VLED - PS_ON
4 VLED - n.c.
5 n.c. GND
6 n.c. GND
7 n.c. GND
8 n.c. GND
9 VLED - +12V_AUDIO
10 VLED - +12V_AUDIO
11 n.c. +12V
12 VLED+ +12V
13 - +12V
14 - +12V
15 - +5V
16 - +5V
+5VSB
SY8104ADC
5V_SW
12V
12V
Figure 7-3 DC/DC converters (4500 series)
50"
CN8101 CN9301
to panel to SSB
12 16
VLED+ DIM
n.c. ON/OFF
VLED_1 PS_ON
VLED_1 2D/3D
n.c. GND
n.c. GND
n.c. GND
n.c. GND
VLED_2 +12V_AUDIO
VLED_2 +12V_AUDIO
n.c. +12V
VLED+ +12V
- +12V
- +12V
- +12V
- +12V
• +3V3, general supply voltage
• +3.3V-TUN, supply voltage for tuner
• +3.3V, supply voltage for Headphone AMP
• +5V-USB, input intermediate supply voltage for USB
Power
• +3V3 from the power supply for the scaler IC MST6852LP
Figures gives a graphical representation of the DC/DC
converters with its current consumptions:
VCCK
M5723B
+3V3SB
DDRV
G5695T11U
3.3V
AP1117E
DM3V3
G9141T11U
AO4449
back to
div.table
55"
CN8101 CN9101
o panel to SSB
12 16
+VLED DIM
n.c. BL_ON/OFF
- VLED_1 PS_ON
- VLED_1 3D_ON
- VLED_1 GND
n.c. GND
n.c. GND
- VLED_2 GND
- VLED_2 +12V_AUDIO
- VLED_2 +12V_AUDIO
n.c. +12V
+VLED +12V
- +12V
- +12V
- +3.5V
- +3.5V
VDDC
AVDD_MOD
AVDD_DMPLL
AVDD_DADC
AVDD_AU33
AVDD3P3_VEDIO
MST6852
AVDD_MOD
AVDD_DDR_CMD
AVDD_DDR_DATA
DVDD3V3
VCC3V3
MSB1241
DM1V2
3V3T
MxL661
LCD PANEL T-CON
TAS5729MD
19910_202.eps