Epson EB-S01 Service Manual page 37

EB-S01/W01/X14G/S11/X11/S02/S02H/X02/W02/S12/S12H/X12/W12/X14 EH-TW480
TROUBLESHOOTING FROM THE ERROR CODE ON ELECTRIC CIRCUIT ERRORS
Error code/error name
RA Internal error RAM
RO Internal error ROM
II Internal error I2C
ID Internal error DR
IV Video sub-processor error
AI Auto Iris error
PB Power Supply (Ballast) error
SEIKO EPSON
Faulty part/part name
RAM has become abnormal.
MA Board MA Board is broken.
Flash ROM has become deteriorated.
Instability of the input AC Power
Input AC power supply
Supply. (an external factor)
Environment (Temperature
Access timing error (occurs in a low
of the customer's operating
temperature environment (Y43series))
environment)
MA Board MA Board is broken.
The cable is not connected properly.
Auto Iris
Auto Iris is broken.
MA Board MA Board is broken.
BA Unit BA Unit is broken.
The cable is not connected properly.
SCI Cable
SCI Cable is broken.
Troubleshooting
Cause
Replace MA Board.
If not appropriate, request the customer to improve such
instability.
If not appropriate, request the customer to improve the
usage environment.
Replace MA Board.
Connect the cable correctly to MA Board.
Replace Auto Iris.
Replace MA Board.
Replace BA Unit.
Connect the SCI cable to BA Unit and MA Board
correctly.
Replace the broken cable.
37
CONFIDENTIAL
Remedy
"3.3.6 MA Board (assembly)
(p74)"
• "2.4.6 Cable Connection
and Projector's Status
(p46)"
• "3.3.6 MA Board
(assembly) (p74)"
"3.3.8.1 Auto Iris (p83)"
"3.3.6 MA Board (assembly)
(p74)"
• "2.4.6 Cable Connection
and Projector's Status
(p46)"
• "3.3.6 MA Board
(assembly) (p74)"
• "3.3.11.1 BA Unit / SCI
Cable (p93)"
Reference
Revision C