Pioneer PDP-507XD Service Manual page 184

1
Fan and temperature sensor
Circuit diagram
A
MAIN Assy
SENSOR
B
C Specifications for port monitoring
Port Name SD/PD Indication Assigned Pin
FAN_NG 1 FAN
Abnormally high
TEMP2
temperature in the
MR
Abnormally high
TEMP0
temperature in the
Drive circuit
D
DTB antenna power supply
Circuit diagram
R07 DT Assy
ANT ON/OFF
H: ON
L: OFF
E
Specifications for port monitoring
Port Name SD/PD Indication Assigned Pin
ANT_POW_EU DTB antenna short
F
184
1
2
TEMP2
FAN_12V
Drive
Circuit
FAN
1
SENSOR Assy
SENSOR
POWER
SUPPLY
Unit
V+5.1V_STB
Overcurrent
Detection
Latch
Hold "L" at
the short-circuit.
IF_37
2
3
V+3V_COM
PULL_U
V+3V_COM
PULL_U
DIGITAL Assy
V+3V_COM
PULL_U
TEMP0
Active
Shutdown with H
Shutdown when the
value exceeds the
predetermined value
Shutdown when the
value exceeds the
predetermined value
MAIN Assy
V+3.3V_STB
ANT_POW_B
Inverter
H: OFF
L: ON
ANT_POW_EU
Monitoring
Active
Warning with L
PDP-507XD
3
4
TEMP2
FAN_CONT
FAN_CONT_POW
MAIN_UCOM
FAN_NG
FAN_NG1 (H act)
Detection
Logic
TEMP2
MODULE_
UCOM
IF_UCOM MAIN_UCOM
4