Panasonic PT-LB90U User Manual

If a problem should occur with the projector, the 

LAMP and/or TEMP indicators will inform you. 

Manage the indicated problems as follows.

When managing a problem, be sure to turn off the power as described in “Switching off the projector”. 

 

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Confirm the power supply status by the 

 

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POWER indicator. (

POWER

FOCUS

ZOOM

RELEASE

INPUT SELECT FUNCTION

MENU

ENTER

RETURN

STANDBY(RED)/

ON(GREEN)

LOCK

LAMP

TEMP

LAMP indicator
TEMP indicator

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Illuminating red

 

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Flashing red

 

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LAMP RUNTIME has reached  

2 800 hours.

LAMP circuit failure, abnormal function or the lamp unit 

is damaged.

Lamp unit will run out soon and 

needs to be replaced.

The projector is 

switched on again 

too soon.

LAMP circuit 

failure, abnormal 

function.

Lamp unit is 

damaged.

See “Replacing the Lamp unit”. 

Let the lamp unit 

cool down and turn 

on the projector 

after 90 seconds.

Switch off the 

projector (

Æ

an Authorized 

Service Center.

See “Replacing 

the Lamp unit”.

If the 

 

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LAMP indicator still lights or flashes after the above remedy, contact an Authorized Service Center.

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Illuminating red while projecting and the alert will be displayed.

 

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Flashing red and power is turned off.

 

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The temperature inside and/or outside the projector is abnormally high.

The projection may becomes darker than usual.

 

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The internal fan operational noise may be louder than usual.

 

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The air outlet port 

and air intake ports 

are covered.

The room tempera-

ture is too high.

The filter is exces-

sively dirty and the 

ventilation is poor.

The projector is located at  

1 400 - 2 700 m (4 593 -  

8 858 ft).

Remove the 

object(s) from the 

air outlet port and 

air intake ports or 

clear around the 

projector.

Reinstall the projector 

in temperature  

controlled place. 

Clean the filter in 

the proper method.  

Turn on the projector*

1

 and 

set the 

MODE to ON. (

The projector will perform 2 minutes with 

*1: 

OFF setting at high elevation.

Take the above remedy, disconnect the power plug, and then supply the power again. If the 

 

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TEMP indicator 

still lights or flashes after the above remedy, contact an Authorized Service Center.

If the environment temperature in the projector rises, the fan speed increases and the sound becomes louder.

 

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