Panasonic 21 Lamp Unit Operation Manual
Lamp Unit
Operating Instructions
PT-52DL10
21 Lamp Unit
®
Troubleshooting
Before you call for service, determine the symptoms
and make a few simple checks as shown below.
Symptoms
Power does not turn
ON
Lamp monitor display is lighting
Checks
Is the lamp unit cover fully
installed?
If the lamp monitor display
lights up?
The lamp circuit has detected
a malfunction.
Was the power turned on im-
mediately after the power
had been turned off?
Wait till the lamp cools off
and turn on the power.
There is a malfunction in the
lamp circuit.
Turn off the power and con-
sult your sales dealer.
Specifications
Lamp Unit for Projection Television
Dimensions 4.6 "× 6.7 "× 4.6 "
( W × D × H )
Weight (Mass) 1.5 lbs. (680 g) Net
(117 mm) ×(170 mm) × (117 mm)
171
Replacing the lamp unit
POWER INDICATOR
R-STANDBY
G-POWER ON
POWER SWITCH
POWER
R-STANDBY
G-POWER ON
Lamp unit
Speaker grille
Lamp unit replacement period
The lamp unit for the projection TV should be replaced after approximately 5,000 hours of use in the normal usage
mode.
Warning display after 5,000 hours of use
•
When the power has been turned off after over 5000 hours of
continued use, LAMP REPLACE will be displayed for approximately
1 min. The next time the power is turned on.
A warning message to urge the replacement of the lamp will be
displayed in red at the center of the screen.
LAMP
TEMP
LAMP TEMP
LAMP REPLACE
Replacing the lamp unit
Important Points to keep in mind
When replacing the lamp unit with a new one, pay attention to the following points.
Warning:
Because the temperature of the lamp unit is elevated immediately after its use, a direct touch to it may cause
burns. Please allow the lamp to cool before handling or replacing the lamp unit.
Cautions for Lamp Unit Replacement:
Handle the removed old lamp unit carefully. If abusing it, it may have a risk of explosion.
Wear gloves when replacing the lamp unit.
If replacing the lamp unit becomes necessary during the operation of the projection TV, follow the procedure below
to turn off the power and wait until the lamp unit cools completely.
1. Press the POWER button on the remote control unit.
2. Wait for about 90 seconds until the cooling fan stops.
* The lamp cooling fan will continue to operate for about 90 seconds after turning off the power. Do not
unplug the power cord from the outlet until the fan has stopped. Avoid interrupting the po wer line such as
by using circuit breakers or switchable power strips.
3. After the cooling fan has stopped, turn off the MAIN POWER switch on the front of the projection TV.
4. Unplug the power cord from the outlet.
Resetting the counter
After replacing lamp, please make sure to undergo below procedure in order to reset the lamp lifetime counter.
CH
Press down both VOLUME DOWN button on the unit and ACTION button
on the Remote Control at the same time for more than 1 second.
When successful, the 3 LED on the set’s front panel (Power / Lamp /
Temperature) will flash for 5 seconds.
VOLUME
VOL VOL
POWER
R-STAND BY
G-POWER ON
ACTION
CH
LAMP TEMP
PT-52DL10
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