EH-TW3500/4500/5500 Troubleshooting CONFIDENTIAL
SEIKO EPSON 20 Revision A
Warning Status
ON Blink OFF Varies according to the projector status
Lamp problem
Lamp failure
Abnormality occurs to the lamp and
the ignition/illumination processes fail.
Sub system ROM
Error
Abnormality is detected from the
elements on a circuit board.
Sub System
Communication Error
LED Status Error Problem/Error Status
LED Status Cause Status/Check point
High Temp
Warning
(This is not an abnormality. However, if the
temperature rises too high again, projection
stops automatically.
• Check that the air filter and air exhaust vent
are clear, and that the projector is not
positioned against a wall.
• If the air filter is clogged, clean or replace it.
Warning to
replace Lamp
Replace the lamp with a new one.
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