EH-TW3500/4500/5500 Troubleshooting CONFIDENTIAL
SEIKO EPSON 21 Revision A
2.4.2 Troubleshooting based on LED Indications
This section describes the LED error indications and corresponding error codes and their remedies.
ON Blink OFF Varies according to the projector status
TROUBLESHOOTING OF INTERNAL ERROR
LED Status
Corresponding error code
and error name
Remedy Reference
Internal Error (1)
RO: ROM Error
1. Disconnect AC cable once, and reconnect it, then turn the power back on.
2. If the same error occurs, connect the PC to the projector and check the error code
on the AS Menu, then carry out the remedy referring to the reference on the right
column.
" Troubleshooting from the
Error Code on Electric Circuit
Errors (p31)"
II: I2C Error
ID: DR Error
Internal Error (2)
RA: RAM Error
Internal Error (3)
RS: Sub system ROM Error
Internal Error (4)
RP: Sub System Communication Error
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