Hitachi 55HDT52/DW1-U Service Manual page 77

POWER SYSTEM BLOCK DIAGRAM
AC120V
AC INLET
Power Supply Unit
(PFC)
Filter PWB
+24V
AC SW
+9V
Reg.
Buffer Digital
Amp.
Audio
Amp.
Sub-Digital PWB
Main-Digital PWB
+9V +5V +5V
Reg. Reg. Reg.
LPF Sync. USB
sep.
Swivel
Motor
Driver
+2.5V +1.6V
DC-DC DC-DC
+1.2V
Reg.
Seine Butler FC SDRAM FLASH
Audio-DSP LVDS IEEE1394 etc.
STBY+5V
+10.5V +5.6V STBY+3.3V
+5V Vari. Vari. +3.3V
Reg.
DC-DC Reg. DC-DC
POD- POD-
Vpp Vcc
Audio
PWM
IR-
Blaster
POD FAN
+3.3V +3.3V +3.3V
Reg. Reg.
Reg.
+1.8V
PLL
Reg.
EPLD
HDMI
Video ADC
+3.3V
Reg.
+2.5V
Reg.
+1.5V
Reg.
Video Decoder
76
Vs
Va
Vcc
+1.1V +5V
DC-DC Reg.
+1.8V
Reg.
Digital Tuner
Demodulator
OOB
LED PWB
+5V
Reg.
IR-Blaster OPT
Driver Output
ANT SW BOX
DW1U
PDP Panel Module
(+80V)
(+60V)
(+5.1V)
(+3.3V)
+9V
DC-DC
Sub
MICRO
IR
LED
+5V +9V +9V
Reg. Reg. Reg.
Analog Video Audio
Tuner SW SW
Terminal PWB