Service manual

3-4
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
SEIKO EPSON Revision:C
Fan Error
Sensor Error
[Status]
Abnormality is detected from any of the fans or the sensors
mounted on the projector. (Fan’s abnormality: irregular revolu-
tion/disconnection, Sensor’s abnormality: irregular value
detected/disconnection)
[Remedy]
Check the connections between the fans/sensors and the MA
board. If the same error occurs after improvement, replace the
Optical Engine and MAB set because the MA board is broken.
(refer to 3.2.2 "Cable Connection and Projector’s Status" (p. 6)
/ 4.4.1 "Removing the Optical Engine and MAB (1) (MA
Board Assy.)" (p. 20) / 4.4.3 "Removing the Optical Engine
and MAB (2) (Optical Engine)" (p. 42))
High Temp Error
(overheating)
[Phenomenon]
The lamp turns off automatically, and the projection stops. Left
the projector for 5 minutes untouched, it switches to the
standby mode.
[Status]
The internal temperature rises over the specified level. (The TH
sensor detects overheating.)
(refer to 3.3.2 "Abnormality Check" (p. 10))
[Remedy]
Check the Air Filter’s condition (dirt accumulation, clogging)
When clogging or the like is found, clean/replace the filter.
(refer to 4.3.2 "Removing the Air Filter Assy." (p. 11))
Lamp problem
Lamp failure
Lamp cover is
open
[Status]
Abnormality occurs to the lamp and the ignition/illumination
processes fail, or the Lamp Lid is not securely closed.
[Remedy]
Check the following one by one. After checking and improv-
ing, turn on the power again and check if the same error occurs
again.
• Whether the Lamp Lid is securely fixed. Check the Lamp
Lid, and fix it securely if it is loose/open.
• Whether the lamp is securely fixed. Check the lamp and fix it
securely if it is loose.
• Whether the lamp is broken/damaged. Take out and check the
lamp for damage. If the lamp is not cracked: Re-fit the lamp
and turn on the power. If the error continues, replace the lamp
with a new one. If the lamp is broken/damaged, replace it
with a new one.
(refer to 4.3.1 "Removing the AS Lamp Unit" (p. 10))
• The Air Filter’s condition (dirt accumulation, clogging)
When clogging or the like is found, clean/replace the filter.
(refer to 4.3.2 "Removing the Air Filter Assy." (p. 11))
When using the projector at an altitude of 1500 m or more, set
"High Altitude Mode" to "On"
Table 3-2. LED Indicator Status (Error)
Indicator Status
Projector
Status
Problem and Remedy
RedRed
RedRed