Philips 22PFL3108H/60 Service Manual page 44

EN 44 7. TPN10.1E LA
PWR_12V_AUD
PWR_12V/5V
12V
12V
5V-STB
Figure 7-9 DC/DC converters ( for 20" & 22" & 24" & 40/42/47PFL3188H/12 & 47PFL3198H/12)
2013-Oct-18
Circuit Descriptions
Depend on panel
C
PWR_12V
PWR_12V
+5V_STB
B
A
<2.5A +5V_STB
RT8079ZQW
+5V_STB
<1.7A
+5V_STB
AP2125N_0.3A
U704
+5V_STB
PVDD
Q757
Q750
AON4421
POWER SWITCH
AON4421
Q757
POWER SWITCH
AON4421
Q750
PANEL_VCC_ON/OFF
BUCK CONVERTER
DV11
U701
PWR_ON
LDO
DV33SB
POWER SWITCH
+5V_SW
AON4421
Q701
PWR_ON
LDO
+5V_SW
G1117_1A
U101_SOT-223
POWER protect
+5V_SW
G5250M1T1U
U102
CI_PWR_EN
LDO
+5V_SW G1117_1A
U702_SOT-223
BUCK CONVERTER
AP3417C_1.2A
+5V_SW
U703_SOT_23_5
LDO
+5V_SW G1117_1A
U705_SOT-223
AMP STA381BWTR
PANEL_VCC
back to
div. table
AUDIO AMP
PVDD
STA381BWTR
PANEL_T-CON
+5V or +12V
PANEL_22"
~55"
MAIN CHIP
<1820mA
NT72567BG
1mA
MAIN CHIP NAND FLASH
<10mA
K9F1G08U0D
NT72567BG
-SIB0
USB multi-media
500 mA
USB PWR
SILICON TUNER
? = <230 mA
+5V_TUNER
ST03CS-2-E
PCMCIA CARD
VCC_CI
CI CARD PWR
MAIN CHIP
<210 mA
DV33
NT72567BG
? =
MAIN CHIP DDRIII
<430 mA NT72567BG
DV15 DV15 K4B2G1646E
? = <370 mA -BCH9
MAIN CHIP
? = <290 mA
AV25 NT72568
<210 mA
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