Pioneer PRO-141FD Service Manual page 87

5
Fan and temperature sensor
Circuit configuration
SENB Assy
SCL_TEMP, SDA_TEMP
FAN_NG_A
FAN_NG_B
Main_Ucom
FAN_A_ON
FAN_B_ON
SCL_D_A, SDA_D_A
MAIN Assy
Specifications for port monitoring
Port Name SD/PD Indication Determination Condition
FAN_NG_A FAN
FAN_NG_B FAN
Unit is high
TEMP
temperature
Panel temperature is
high
TMP_NG
Panel temperature is
low
5
6
SENC Assy
TEMP TEMP
Shutdown occurs when the
signal is "H."
Shutdown occurs when the
signal is "H."
Shutdown occurs when the
value is more than setting value. Panel screen ON
Shutdown occurs when the
value is more than setting value. Panel screen ON
PRO-141FD
6
7
Fans for power system
OR
FAN_VCC1
FAN_REG1
0 to 12V
FAN_CONT1
VOLT
CONTROL
FAN TYUUKEI Assy
Monitoring Conditions
FAN_A_ON: H
(Monitoring starts 35 sec after the
conditions are established.)
Shutdown occurs after the warning indication is
displayed for 10 sec.
FAN_B_ON: H
Blue LED flashes 10 times
(Monitoring starts 35 sec after the
conditions are established.)
Shutdown occurs after the warning indication is
displayed for 10 sec.
Blue LED flashes 11 times
Shutdown occurs after waiting for 30 sec.
Blue LED flashes 4 times
Shutdown occurs immediately
Panel screen ON
Blue LED flashes 4 times
7
8
Fans for drive system
PULL_U PULL_U
OR
FAN_VCC2
FAN_REG2
0 to 12V
FAN_CONT2
Operation
8
A
B
C
D
E
F
87