Pioneer PDP-4270XA Service Manual page 162

1
A
Power supply status - ON
Main
LED
B B B B
IF
R
micro-
O
computer
B
DCDC
Reg
F.E. A/B
DTV
RGB-SW
block
AV-SW
C
CC
Power supply status - Standby
Main
LED
B
IF
R R R R
micro-
D
O
computer
DCDC
Reg
F.E. A/B
DTV
RGB-SW
E
block
AV-SW
CC
F
162
1
2
SW
MOD_RST
Main microcomputer
RST3
RST4 A_STBY
RST2
From A
PSW1
DCDC
MVDEC
Volume
SVDEC
AMP
IC
AD
HDMI
DSEL
Address
IP
MULTI
HNM
X&Y-Drive/Scan/Address
SW
( POF)
MOD_RST
Main microcomputer
RST3
RST4 A_STBY
RST2
From A
PSW1
DCDC
Reg
MVDEC
Volume
SVDEC
AMP
IC
AD
HDMI
DSEL
Address
IP
MULTI
HNM
X&Y-Drive/Scan/Address
2
3
Module microcomputer
PON
RST2 KDD
AC_DET RELAY
Inv. Buf.
And
PSW1
DCDC
Reg
Audio
SQ ASIC
Address Drive Drive
Module microcomputer
RST2 KDD
AC_DET RELAY
Inv. Buf.
And
PSW1
DCDC
Reg
Audio
SQ ASIC
Address Drive Drive
PDP-427XD
3
4
V+3.3V_STB
V+5.1V_STB
Vstb
AC
detect
Digital l
M_SW_DET
Relay
A
Vcc
Vsus
Vadr
SW
DRF
Reg
Power supply
V+3.3V_STB
V+5.1V_STB
Vstb
AC
detect
Digital l
M_SW_DET
Relay
A
Vcc
Vsus
Vadr
SW
DRF
Drive
Reg
Power supply
4
AC
in
V+35V
V+16.5V
V+12V
V+6.5V
V+5.1V
AC
in
V+35V
V+16.5V
V+12V
V+6.5V
V+5.1V