Philips TPM15.5L LA Service Manual page 28

EN 28 7. TPM15.5L 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.
• +3V3, supply voltage for Keyboard
• +12V, input from the power supply for the panel
common(active mode)
• +12V, input from the power supply for the AMP
• +1V2, from the power supply for the scaler IC MT5561
• +1V5, supply voltage for DDR2 ( diagram B03B)
+12V_AMP +12VSB_PRE
2015-Aug-08
Circuit Descriptions
Connector
32"
Number CN9101 CN8604
Description to SSB to Panel
Pin 14 6
1 DIM VLED+
2 On/off VLED+
3 PS_ON n.c.
4 Scan_BL_EN n.c.
5 GND LED_a
6 GND LED_a
7 GND -
8 GND -
9 +12V-AUDIO -
10 +12V-AUDIO -
11 +12V -
12 +12V -
13 +12V_AL -
14 +12V_AL -
15 - -
16 - -
U706
FB703
SY8104ADC
+12V
FB601
PVDD_R
U601
AD87588
FB602
PVDD_L
40" & 43" 48"
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
+5V - -
+5V - -
• +3V3, genenal supply voltage
• +3V3-TUN, supply voltage for tuner
• +5V-USB, input intermediate supply voltage for the USB
Power
• +3V3, from the power supply for the scaler IC MT5561
• +1.1V, clean voltage for Demod channel decoder
Figures gives a graphical representation of the DC/DC
converters with its current consumptions :
+5V_SB U703
M5723B-33F61U
+3.3V_SB
U702
G903T63UF
U503
FB504
G529A1TP1U
5V_Normal
Q701
AO3401A
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+
-
-
-
-
R719
AVDD1V2 (1.2V)
FB702
VCCK (1.2V)
FB403
VCC3.3VA_A1
FB413
AVDD_DMPLL
FB414
AVDD_AU
MHL
U116
APL3511
Wi-Fi_VCC
U705
G5695T11U
DVDD3V3
AVDD3V3
19760_202.eps