Replacement Of Lamp Unit; Precautions On Lamp Unit Replacement; Timing Of Lamp Unit Replacement - Panasonic PT-D7700U Service Manual

10 Replacement of Lamp Unit

Cautions
· Wait until the lamp is cooled sufficiently before replacing the lamp unit.

10.1. Precautions on Lamp Unit Replacement

· Be careful when handling a light source lamp . The lamp may burst if it hit by solid objects or if it is dropped because of high
air pressure inside the bulb.
· A used lamp unit may burst if it is handled violently.
For disposition of used lamps, request an industrial waste disposal contractor.
· Do not reset the cumulative time, except when the lamp unit has been replaced with a new unit.
· If you continue to use a lamp after the replacement time, the lamp may break.
· Philips screwdriver is necessary when replacing a lamp unit.
Take care not to slip your hand when using a screwdriver.
· A lamp unit is an optional part. Contact the dealer.
Replacement lamp unit model No.: ET-LAD7700 (single bulb), ET-LAD7700W (double bulbs)
Rating: 300 W 80 V
Long-life lamp unit model No.: ET-LAD7700L (single bulb), ET-LAD7700LW (double bulbs)
Rating: 160 W 80 V
· Other lamps than specified above cannot be used. Be sure to use the specified lamp.

10.2. Timing of Lamp Unit Replacement

The lamp used for the light source has its due life. The life of light source lamp used in the main unit is 1 500 hours
output is HIGH and lamp selection is DUAL). However, it may happen that the lamp becomes dead(will not light) by the time of 1
*1
500 hours depending on the characteristics of individual lamps and working conditions (lamps may reduce their life affected by
the times of lighting and the intervals between previous lighting andnext lighting). Therefore, it is strongly recommended for the user
to keep a spare bulb. If your lamp unit is not replaced after 1 300 hours
be turned offautomatically at the time of 1 500 hours
later, entering a standby state even if it is turned on again.
*2
(with the lamp output set at "HIGH"), power supply will
*1
of initial lighting, power supply is turned off automatically about 10 minutes
25
PT-D7700U / PT-D7700E
*1
(when lamp