Processing In Abnormality - Pioneer PDP-6071PU Service Manual

1
10.6

PROCESSING IN ABNORMALITY

Power supply and DC-DC converter
Circuit diagram
A
POWER SUPPLY Unit
SW_REG
B
Fan and temperature sensor
C
Circuit diagram
TANSHI Assy
SENSOR
D
Specifications for port monitoring
Port Name SD/PD Indication Assigned Pin
FAN_NG 1 FAN
Abnormally high
TEMP2 temperature in the
MR
E
TRAP_SW
Circuit diagram
F
194
1
2
DIGITAL Assy
MAIN Assy
TEMP2
FAN_VCC
Drive
Circuit
FAN
155
76
TRAP_SW
2
3
MAIN Assy
IIC Communication
Device
ASIC
DC/DC Converter
MODULE_Ucom
V+3.3V_UCOM
Pull_up
FAN_NG1 (H act)
Active
Shutdown with H
Shutdown when the
value exceeds the
predetermined value
MTB MAIN Assy
V_3.3V_UCOM
TRAP_SW
PULL_D
PDP-6071PU
3
4
IIC Communication NG
3-wire serial Communication NG
MAIN_UCOM
PSW1 (L_act)
PON (Command)
FAN_CONT
MAIN_UCOM
MAIN_UCOM
4