Epson EH-TW9000 Service Manual

EH-TW8000/TW9000/TW9000W Troubleshooting CONFIDENTIAL
SEIKO EPSON 52 Revision A
MAL-CONNECTION ON EACH CONNECTOR (MA Board)
Connector
No.
Destination
Error Information
Status Reference
Code Name
CN9100
Optical Engine
(L/V(R))
--- ---
When pressing the power button, initialization starts normally, then the projection
starts. But the projected image is bluish. (This phenomenon is not easily
recognized on Logo screen or the menu screen; therefore try displaying red color
image or the like to check for it.)
" Troubleshooting on
image Display &
Quality (p42)"
CN9200
Optical Engine
(L/V(G))
When pressing the power button, initialization starts normally, then the projection
starts. But the projected image is reddish.
CN9300
Optical Engine
(L/V(B))
When pressing the power button, initialization starts normally, then the projection
starts. But the projected image is yellowish.
CN3904/
CN3911
Auto Iris AI Auto Iris Error
The power can turn on and Power LED lights blue. When pressing the power
button, the error message about Auto Iris is displayed on the screen, and advises
the user to turn off the power and to contact the Epson Service. When pressing the
power button, the LEDs indicate the warning and after a certain period of cooling
the power turns off automatically with two beeps into error stand-by status. The
LED Indicator’s warning display continues until unplugging the AC cable.
" Troubleshooting from
the Error Code on
Electric Circuit Errors
(p41)"
CN3701
BA Unit
(SCI Cable)
PB
Power Supply (Ballast)
Error
The power can turn on and Power LED lights blue. When pressing the power
button, initialization starts but instantly the projector changes into the Power
Supply (Ballast) Error status. After a certain period of cooling, the power turns off
automatically with two beeps into error standby status. The LED Indicator's
warning display continues until unplugging the AC cable.
" Troubleshooting from
the Error Code on
Electric Circuit Errors
(p41)"
CN4100 PS Unit --- ---
When the AC cable is connected, the power LED does not light blue. The power
button does not work or the power cannot turn on.
" Troubleshooting at
Power-ON (p42)"
CN3702 RCF Board --- ---
When pressing the power button, initialization starts normally, then the projection
starts. But the control from the front does not function. The control from the rear is
still effective. When checking for this, send the signal to the front of the projector
only. Otherwise, this error can be easily slipped over, so be careful.
" Troubleshooting on
Operation Abnormality
(p46)"
CN3704 RCR Board --- ---
When pressing the power button, initialization starts normally, then the projection
starts. But the control from the rear does not function. The control from the front is
still effective. When checking for this, send the signal to the rear of the projector
only. Otherwise, this error can be easily slipped over, so be careful.

Epson EH-TW9000 Specifications

General

Brand	Epson
Model	EH-TW9000
Category	Projector
Language	English