Epson EB-E01, Service Manual, Page: 45 / 190

EB-E01 series Troubleshooting INTERNAL USE ONLY
SEIKO EPSON 45 Revision A
TROUBLESHOOTING FROM THE ERROR NAME ON ELECTRIC CIRCUIT ERRORS
Thermistor Sensor Error
LV Optical engine
FPC is not connected properly. Connect FPC correctly to MA Board. P.53
FPC is broken.
Replace MA Board. P.100
The thermistor mounted on the circuit
board is broken.
LMP
LWR
Thermistor
Thermistor is broken. Replace Thermistor.
P.119
P.132
TH Cable is not connected properly. Connect TH Cable correctly to MA Board.
TH Cable is broken. Replace the broken TH Cable.
PS(1)
PFC(1)
PS Ballast Assy
The thermistor mounted on the main
circuit board is broken.
Replace PS Ballast Assy. P.122
PB
The thermistor mounted on the BA Unit is
broken.
Error name Description Faulty part/part name Cause Remedy Reference
RAM
Internal error
(RAM)
MA Board
RAM has become abnormal.
Replace MA Board. P.100
Inner
Internal error
(ROM)
Flash ROM is broken.
(The number of data rewrite times has
exceeded its limit)
MA Board is broken.
I2C Internal error I2C
Input AC power supply
Instability of the input AC Power
Supply. (caused by an external factor) If not appropriate, request the customer to improve the usage
environment. (Refer to “Safety precautions” in the projector’s User's
Guide)
Environment (Temperature of the
customer’s operating
environment)
Access timing error (occurs in a low
temperature environment (Y43series))
DR Internal error DR
MA Board MA Board is broken. Replace MA Board. P.100
IV Video sub-processor error
Auto Iris Auto Iris Error
Auto Iris Assy
TH Cable is not connected properly. Connect TH Cable correctly to MA Board. P.39
TH Cable is broken.
Replace the Auto Iris Assy. P.115
Auto Iris Assy is broken.
Moving parts (Gears) of Auto Iris
Assy Foreign material sticks on the part and
causes operation failure.
Remove the foreign material in between the gears. ---
Error name Description Faulty part/part name Cause Remedy Reference