Philips 20PHH4109/88 Service Manual page 44

EN 44 7. TPN14.1E LA
2014-Feb-21
Circuit Descriptions
+12V
+12V_PWR RT7257AHZSP
Soft Start
LDO
AS7805DTR-E1 5v
LM1108SF
U704
Depend on panel
POWER SWITCH
+12V
AON4421
+5V_STB
Q750
PANEL_VCC_ON/OFF
BUCK CONVERTER
5V_STB +5V_STB G5173R41D DV11
U701
POWER SWITCH
+5V_STB AON4421 +5V_SW
Q701
PWR_ON
12V
FB603
FB604
12V
Q706
5V-STB
AON4421
Figure 7-7 DC/DC converters ( for 32")
AUDIO AMP
+12V AD82587D
+5V_STB
5V_STB
PWR_ON
DV33SB
PANEL_T-CON
+5V or +12V
MAIN CHIP
<1820mA NT72568
USB multi-media
500 mA
USB PWR
LDO SILICON TUNER
+5V_SW G1084-33 <230 mA +5V_TUNER
ST03CS-2-E
U101
POWER protect PCMCIA CARD
+5V_SW VCC_CI CI CARD
G5250M1T1U
PWR
U102
CI_PWR_EN
LDO MAIN CHIP
G1084-33TU3Uf
+5V_SW <170 mA DV33 NT72568
U702
LDO MAIN CHIP
DV33 AZ1117D DV15 NT72568
<370 mA
U703
LDO MAIN CHIP
<290 mA
+5V_SW AV25
G1084TU3UF NT72568
U705
PVDD
AMP STA381BWTR
PANEL_VCC
back to
div. table
1mA
MAIN CHIP NAND FLASH
<10mA
NT72568 K9F1G08U0D
-SIB0
PANEL
<210 mA DDRIII
DV15 K4B2G1646E
-BCH9
19530_205_130807.eps
130807