Read Sharp PN-V602 (serv.man7) Service Manual online
CHAPTER 8. HARDWARE DESCRIPTIONS
PN-V602 HARDWARE DESCRIPTIONS
8 – 9
3. FAN
3 - 1. FAN CONTROL
When the fan rotation speed is set to “Auto,” the fan rotation speed (RPM) changes automatically in accordance with the temperature of Sensor 1.
(Figure.X1)
(Figure.X1)
However, as the minimum RPM
*1
is specified, the fan doesn’t stop even at the temperature to stop the rotation in some cases.
See the Table.X1 below for the temperature obtained by each Sensor, the fan rotation speed and the threshold temp. for temperature watch.
*
1
The minimum RPM differs according to the current “brightness” setting, so the fan won’t stop depending on the brightness of screen.
*
2
The power fan is fixed-controlled. (Constant operation at about 1260rpm when the fan for the duct is operating)
FIGURE.X1 TEMPERATURE, FAN ROTATION SPEED (RPM) AND STATUS CHANGE BY TEMP.WATCH (FAN ROTATION SPEED SET TO "AUTO")
TABLE.X1 TEMPERATURE, FAN CONTROL AND THRESHOLD FOR TEMPERATURE ABNORMALITY
*
1
The LED flashes in red-green, the “Monitor Temperature” alert is displayed in the screen, and the brightness goes down to “Bright Level 5”.
(In the default settings, “Monitor Temperature” is not displayed.)
When it is in the status of high temp abnormality, if the temperature has lowered to 5°C or below, or the power is turned off and on by the button
When it is in the status of high temp abnormality, if the temperature has lowered to 5°C or below, or the power is turned off and on by the button
of Display Unit or the remote control, the status of high temp abnormality is cleared.
*
After power-on, the fan starts from 0 (rpm) and then the RPM is determined based on the temperature immediately after the power-on.
Display
installation/
layout
Temp. Sensor
Temp.to
lower RPM
Temp.to
raise RPM
Temp.to
lower RPM
Temp.to
raise RPM
Temp.
determined as
high-temp
*1
Temp.
for power
shut-off due to
high temp
Horizontal
installation
Sensor 1
38°C
43°C
49°C
54°C
61°C
66°C
Sensor 2
---
---
---
---
60°C
65°C
Sensor 3
---
---
---
---
60°C
65°C
Sensor 4
---
---
---
---
60°C
65°C
Sensor 5
---
---
---
---
62°C
67°C
Sensor 6
---
---
---
---
62°C
67°C
Vertical
installation
Sensor 1
42°C
47°C
50°C
55°C
62°C
67°C
Sensor 2
---
---
---
---
62°C
67°C
Sensor 3
---
---
---
---
62°C
67°C
Sensor 4
---
---
---
---
62°C
67°C
Sensor 5
---
---
---
---
62°C
67°C
Sensor 6
---
---
---
---
62°C
67°C
0
1200
3400
Fan Rotation
Speed
㩿rpm㪀
Temp.
to lower RPM
Temp.
to raise RPM
Temp.
to lower RPM
Temp.
to raise RPM
High temperature
abnormality
Temp. to
shut off the power
LED flashes in red-green,
"MonitorTemp" is
displayed, and the
brightnessgoes down.
"MonitorTemp" is
displayed, and the
brightnessgoes down.
It shifts to
thestandby
statusfor safety.
thestandby
statusfor safety.
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