Description; Specification About The Thermal Protection - Pioneer PDP-436SXE Service Manual

5

7.2 DESCRIPTION

7.2.1 SPECIFICATION ABOUT THE THERMAL PROTECTION

* The change of HI / LO have hysterisis curve below.
Reading value of the season and FAN drive.
T4
(Outside air 60°C)
T3
(Outside air 38.5°C)
T2
(Outside air 35.5°C)
T1
(Outside air 33°C)
T0
(Outside air 30°C)
FAN : STOP
Assign
76pin
This model controls the FAN drive by MAIN u-com pin 149 (FAN ON / OFF) pin 17 (Cange of FAN control voltage) ,
not by the traditional PWM.
Set State and FAN Drive Set State and FAN Drive
POWER PSW1
ON ON
ON ON
OFF
[ Outline Circuit ]
17
UCOM
149
5
6
FAN : LO FAN : HIGH FAN : HIGH
AD value
(Thermister)
8 bit
TEMP2 T4 setting 105
T3 setting 131
T2 setting 139
T1 setting 141
T0 setting 149
Assign FAN : HIGH
IC5206 149pin
H
FAN_CONT
IC5206 17pin
H
FAN_CONT_POW
State Control
ON According to the reading value of above table sensor. ON (HIGH/LO/STOP)
DT_REC According to the reading value of above table sensor. ON (HIGH/LO/STOP)
STB FAN CONT
H Vo = 9.57V
:
L : Vo = 7.10V
6
7
FAN : LO FAN : STOP FAN : STOP
AD value
Aime
(Thermister) (Outside air of
(Sensor position)
10 bit
420 60°C
524 46°C
556 41°C
564 40°C
596 35.5°C
FAN : LO STOP
H L
L -
Vo
FAN_vcc
REG
Vref = 2.65V
H : On
L : Off
PDP-436SXE
7
8
FAN : LO FAN : HIGH SD
Aime
Unit)
55°C
38.5°C
38.5°C
33°C
30°C
FAN Operation
OFF
8
A
B
C
D
E
F
135