EH-TW8000/TW9000/TW9000W Troubleshooting CONFIDENTIAL
SEIKO EPSON 41 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 has become abnormal.
Replace MA Board (Optical Engine and MAB Set).
"3.3.6.3 Optical Engine and
MAB Set (p75)"
RO Internal error ROM
MA Board is broken.
Flash ROM has become deteriorated.
II Internal error I2C
Input AC power supply
Instability of the input AC Power
Supply. (an external factor)
If not appropriate, request the customer to improve such
instability.
Environment (Temperature
of the customer’s operating
environment)
Access timing error (occurs in a low
temperature environment (Y43series))
If not appropriate, request the customer to improve the
usage environment.
ID Internal error DR
MA Board MA Board is broken.
Replace MA Board (Optical Engine and MAB Set).
IV Video sub-processor error
RS Sub-System Rom Error
Sub-System
(Electric circuit other than
MA Board)
Sub-System has become abnormal.
RP
Sub-System Communication
Error
AI Auto Iris Error
Auto Iris
The cable is not connected properly. Connect the cable correctly to MA Board.
• 2.4.6 Cable Connection
and Projector’s Status
(p51)
• "3.3.6 MA Board
(assembly) (p70)"
Auto Iris is broken. Replace Auto Iris.
"3.3.8.2 Auto Iris (p81)"
MA Board MA Board is broken. Replace MA Board (Optical Engine and MAB Set).
"3.3.6 MA Board (assembly)
(p70)"
CF Cinema Filter Error CF Motor CF Motor is broken. Replace CF Motor.
"3.3.8.1 CF Motor (p80)"
PB
Power Supply
(Ballast) Error
BA Unit BA Unit is broken. Replace BA Unit.
• 2.4.6 Cable Connection
and Projector’s Status
(p51)
• "3.3.6 MA Board
(assembly) (p70)"
• "3.3.18.1 BA Unit / SCI
Cable (p109)"
SCI Cable
The cable is not connected properly.
Connect the SCI cable to BA Unit and MA Board
correctly.
SCI Cable is broken. Replace the broken cable.
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