Temperature Sensors, Wind Sensors - Panasonic PT-EX600U Service Manual

Circuit Protections

Temperature sensors, wind sensors

The projector provides 3 temperature sensor ICs and 1 wind sensor on the intake duct. These devices are monitoring
the surrounding temperature of the lamp, panel and intake duct, and the wind sensor is monitoring airflow passed
through the air filter in the intake duct.
- Internal temperature sensor A (IC1692) (around the Intake duct)
- Internal temperature sensor B (IC1816) (around the lamp house)
- Internal temperature sensor C (IC1814) (around the panel/prism)
- Wind sensor D (S901) (intake duct)
IC1814 on the
Sensor C board
Top view of the LED indicators
LED indicators
ON(G)/STANDBY(R)
indicator
The projector is shut down and the < TEMP> indicator is blinking red.
When the temperature inside the projector reaches a certain level, the <TEMP> indicator starts blinking slowly. If the
temperature rises moreover, the projector will be automatically shut down to protect the inside of the projector, and
the <TEMP.> indicator is blinking fast and the <ON(G)/STANDBY(R)> indicator lights in orange. When the projector
has cooled down enough (to its normal operating temperature), the <ON(G)/STANDBY(R)> indicator lights in red and
the projector can be turned on again by pressing the
✔Note:
• T he <TEMP> indicator continues to blink even after the temperature inside the projector returns to normal. When
the projector is turned on again, the <TEMP> indicator stops blinking.
Check the items below
- Remove dust around the air filter.
- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are
not obstructed.
- Check if projector is used at higher temperature place (Normal; operating temperature is 0 to 40 ºC or 32 to 104
ºF).
TEMP. indicator
S901
Wind sensor
IC1692 on the
Sensor A board
IC1816 on the main
board (behind)
button.
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