Details Of Power On Sequence - Pioneer PDP-4280HD Service Manual

5

5.1.3 DETAILS OF POWER ON SEQUENCE

Power supply status - AC off
Microcomputer
output port state
IR/Key/
232C
OFF
IF: ACTIVE
Main: PSW1 OFF
OFF
Module: RELAY
OFF
Module: DRF_B
LED
Microcomputer
input port state
Main: RST4 OFF
Main: RST2 OFF
EEPROM
Module: RST2 OFF
Main
EEPROM
Digital
BAK_EEP
Sensor
The state of AC cord is pulled out.
Power supply status - Main switch off
Microcomputer
output port state
IR/Key/
232C
ON
IF: ACTIVE
OFF
Main: PSW1
OFF
Module: RELAY
Module: DRF_B OFF
LED
Microcomputer
input port state
Main: RST4 ON
EEPROM
Main: RST2 OFF
Module: RST2 OFF
Main
EEPROM
Digital
Sensor
The user operation with the remote control unit is invalid. (All LED: OFF)
Standby power device and some Vcc power devices operate.
RGB-SW/AD/D-AMP/MAP are electrified, but uses the power-saving mode function of the IC.
5
6
AC_DET
IF ucom
M_SW_DET
Short
ACTIVE
M_SW_DET_B
RST3
AND
RST4
Main_
PSW1
ucom
AND
RST2
EMG_USB
MOD_
RST
DLNA/USB
GR
SW
(Elite)
USB
OR
RELAY
Module_
ucom
DRF_B
X/Y Drive
Scan
DRIVE
DCDC/REG
AC_DET
IF ucom
M_SW_DET
Short
ACTIVE
M_SW_DET_B
RST3
AND
RST4
Main_
PSW1
ucom
AND
RST2
EMG_USB
MOD_
RST
DLNA/USB
GR
SW
(Elite)
USB
OR
RELAY
Module_
ucom
DRF_B
X/Y Drive
BAK_EEP
Scan
DRIVE
DCDC/REG
6
7
ON OFF
R
DCDC/REG
I/O
PDET
DCDC/REG
A.D.TUNER A.TUNER
AV-SW
D.TUNER A.TUNER
FAN
A.D.TUNER
VDEC
VBI VBI
COFDEM
HDMI
BCM BCM
CIF
ASIC RGB-SW
iLink POD
LVDS-Tx AD
USB(Reg.) AAC-DEC
LVDS-Rx
DCDC/REG
DAC
SQ ASIC
RST2
AND
Address
ASIC ADDRESS
ON OFF
R
DCDC/REG
PDET
DCDC/REG
A.D.TUNER A.TUNER
AV-SW
A.TUNER D.TUNER
FAN
A.D.TUNER
VDEC
VBI VBI
COFDEM
HDMI
BCM BCM
CIF
ASIC RGB-SW
iLink POD
LVDS-Tx AD
USB(Reg.) AAC-DEC
LVDS-Rx
DCDC/REG
DAC
SQ ASIC
RST2
AND
Address
ASIC ADDRESS
PDP-4280HD
7
8
V+3.3V_STB
Power supply
V+5.1V_STB
STB
US_SW
AC_
DET
MAP
MSP MAP
M_SW
_DET
D-AMP
Jumper
P11
Relay
V+35V
Vcc
V+16.5V
V+12V
V+6.5V
V+5.1V
Vsus
Vadr
VSUS
VADR
DRIVE/SCAN
V+3.3V_STB
Power supply
V+5.1V_STB
STB
US_SW
AC_
DET
I/O
MAP
MSP MAP
M_SW
_DET
D-AMP
Jumper
P11
Relay
V+35V
Vcc
V+16.5V
V+12V
V+6.5V
V+5.1V
Vsus
Vadr
VSUS
VADR
DRIVE/SCAN
8
A
AC
Main
Switch
B
C
D
AC
Main
Switch
E
F
43