Service manual

19
PG-M20S
PG-M20X
AC socket
POWER button
Adjustment buttons
(
|
|)
ENTER button
Resetting the Lamp
Timer
Reset the lamp timer after replacing the lamp.
1 Connect the power cord.
•
2 Reset the lamp timer.
•
•
Info
•
RESETTING THE TOTAL LAMP TIMER
About the TEMPERATURE WARNING indicator
If the temperature inside the projector in-
creases, due to blockage of the air vents, or
the setting location,
will blink in the
lower left corner of the picture. If the tem-
perature keeps on rising, the lamp will turn
off and the TEMPERATURE WARNING in-
dicator will blink, the cooling fan will run for
further 90 seconds, then the power will be
shut off. After
appears, be sure to
perform the following measures.
■ The warning lights on the projector indicate problems inside the projector.
■ If a problem occurs, either the TEMPERATURE WARNING indicator or the LAMP REPLACEMENT
indicator will illuminate red, and the power will turn off. After the power has been turned off, follow
the procedures given below.
TEMPERATURE
WARNING
indicator
LAMP
REPLACEMENT
indicator
POWER
indicator
About the
LAMP
REPLACEMENT
indicator
■ When the lamp
exceeds 1,900 cumulative hours
of use,
will be displayed
on the screen in yellow. When
the cumulative hours of use
reach 2,000,
will
change to red, the lamp will au-
tomatically turn off and then the
projector as well. At this time, the
LAMP REPLACEMENT indica-
tor will illuminate in red.
■ If you try to turn on the projector
a fourth time without replacing
the lamp, the projector will not
turn on.
Maintenance indicator Condition Problem Possible Solution
TEMPERA-
TURE
WARNING
indicator
Normal Abnormal
Off
Red on/
Power off
The internal
temperature is
abnormally high.
Abnormal
• Blocked air intake
• Relocate the projector to an area
with proper ventilation.
• Cooling fan break-
down
• Internal circuit failure
• Clogged air intake
• Take the projector to your nearest
Sharp Authorized Projector Dealer
or Service Center for repair.
LAMP
REPLACE-
MENT
indicator
Red on/
Power off
The lamp does
not illuminate.
• Burnt-out lamp
• Lamp circuit failure
• Take the projector to your nearest
Sharp Authorized Projector Dealer
or Service Center for repair or
lamp replacement.
• Please exercise care when
replacing the lamp.
Green on
Green
blinks
when the
lamp is
active.
Red
blinks
Time to change
the lamp
• Lamp usage time
exceeded 1,900
hours