Pioneer PDP-427XD - PROCESSING IN ABNORMALITY; Abnormality Processing Procedures

PDP-427XD
168
1234
1234
C
D
F
A
B
E
10.6 PROCESSING IN ABNORMALITY
Power supply and DC-DC converter
SW_REG
POWER
SW
DC/DC Converter
MODULE_Ucom
Inverter
RST4
RST3
PSW1
RST2
ACTIVE
AC shutdown
detection
Voltage
detection
Voltage
detection
DC_DC Converter
output control
PON/POFF
Command
Startup
Main ucom
Command
MAIN_UCOM
V+12V
IF_UCOM
POWER SUPPLY Unit
DIGITAL ASSY
MAIN Assy
Circuit diagram
Specifications for port monitoring
Port Name SD/PD Indication Assigned Pin Active
A_NG_B AUDIO Shutdown with L
Specifications for port monitoring
Port Name SD/PD Indication Assigned Pin Active
RST2 ASIC power Shutdown with L
RST3 AC power AC_OFF with H
RST4 MAIN power Shutdown with L
Speaker short-circuit
A_NG_BA_NG_B
MAIN_UCOM
PULL_D
PULL_U
V+3.3V_D
V+3.3V_UCOM
V+5.1V
RELAY
PULL_U
MAIN Assy
AUDIO Assy
POWER
AMP IC
Circuit diagram
V+12V
PULL_D
PULL_U