![background image](http://html.mh-extra.com/html/benq/mw821st/mw821st_user-manual_2733741052.webp)
Maintenance
52
Indicators
Light
Status & Description
Power events
Orange
Off
Off
Stand-by mode.
Green
Flashing
Off
Off
Powering up.
Green
Off
Off
Normal operation.
Orange
Flashing
Off
Off
Normal power-down cooling
Red
Off
Off
Download
Green
Off
Red
CW start fail
Red
Flashing
Off
Off
Scaler shutdown fail (data abord)
Red
Off
Red
Scaler reset fail (video projector only)
Off
Red
Off
LAN download fail
Off
Green
Off
LAN download processing
Green
Off
Off
Burn-in ON
Green
Green
Green
Burn-in OFF
Lamp events
Off
Off
Red
Lamp1 error in normal operation
Off
Off
Red
Flashing
Lamp is not lit up
Thermal events
Red
Red
Off
Fan 1 error (the actual fan speed is +25% outside
the desired speed)
Red
Red
Flashing
Off
Fan 2 error (the actual fan speed is +25% outside
the desired speed)
Red
Green
Off
Fan 3 error (the actual fan speed is +25% outside
the desired speed)
Red
Flashing
Red
Flashing
Off
Temperature 1 error (over limited temperature)
Green
Red
Flashing
Off
Thermal Sensor 1 open error
Green
Green
Off
Thermal Sensor 1 short error
Green
Green
Flashing
Off
Thermal IC #1 I2C Connection error
Green
Flashing
Red
Off
Temperature 2 error (over limited temperature)
Green
Flashing
Red
Flashing
Off
Thermal Sensor 2 open error
Green
Flashing
Green
Off
Thermal Sensor 2 short error
Green
Flashing
Green
Flashing
Off
Thermal IC #2 I2C Connection error