Epson EH-TW5500 Service Manual

EH-TW3500/4500/5500 Troubleshooting CONFIDENTIAL
SEIKO EPSON 31 Revision A
TROUBLESHOOTING FROM THE ERROR CODE ON ELECTRIC CIRCUIT ERRORS
Error code/error name Faulty part/part name Cause Remedy Reference
RA Internal error RAM
MA Board
RAM becomes abnormal.
Replace the Optical Engine and MAB set.
• "3.3.8 Removing the MA Board
(assembly) (p68)"
• "3.3.9 Removing the Optical
Engine (assembly) (p75)"
RO Internal error ROM
MA Board is broken.
Flash ROM becomes abnormal.
II Internal error I2C
Input AC power supply.
Instability of the input AC Power
Supply. (an external factor)
If not appropriate, request the improvement.
Environment (Temperature
of the customer’s operating
environment)
Access timing error (occurs in a low
temperature environment (Y43series))
If not appropriate, request the improvement.
ID Internal error DR Status MA Board MA Board is broken.
Replace the Optical Engine and MAB set.
RA Sub system PW Error
Sub System (Electric Circuit
other than MA Board)
Sub System becomes abnormal.
RS
Sub system ROM Error
Replace MA Board.
MA Board
Optical Engine

Epson EH-TW5500 Specifications

General

Brand	Epson
Model	EH-TW5500
Category	Projector
Language	English