Epson EMP-822 Service Manual page 33

Error
Status
(AS menu)
Inappropriate connec-
tion of connectors
Thermistor
Disconnection of the
error (SE)
cable
Failure of the sensor
board
Abnormality of the cir-
cuit
Abnormal value of the
V-LA (smaller than nor-
mal)
Broken lamp damaged
Lamp burnt
in operation
out (LE)
Abnormality of the lamp
due to the breakdown of
the thermistor of the
Ballast
Malfunction of the ther-
mistor
Lamp burnt
out (LE)
Instability of the Input
AC power supply.
Abnormal value of the
V-LA (greater than nor-
mal)
Abnormal value of the
V-LA (smaller than nor-
mal)
Instability of the Bal-
Lighting
last's drive waveform
failure (LF)
Failure of the lamp
Failure of the lamp
Lighting fail-
ure (LF)
Overheating due to the
clogging of the filter
SEIKO EPSON
EMP-822/EMP-83/EMP-X5/EMP-S5
Cause Point to be checked
Connection status
Connecter's terminal sta-
tus
Condition of cables/con-
duction state
Condition of the sensor
board
MAB's condition
V-LA's status
Damage of the lamp
Condition of the PS Air
Filter (dirt, clogging)
Condition of the PS Bal-
last Assy.
Quality of the customer's
power supply
V-LA's status
Abnormality of the bulb
(arc tube)
Breakage of the molyb-
dic wire
Bend of the lead wire
Adhering of the mercury
Short-circuit between the
electrodes
Filter's condition
Remedy (Part to be improved/Reference)
If not appropriate, correct the connection.
• MA Board Assy.
• TH Board Assy.
If damaged, replace the cable/board including
the damaged terminal.
• MA Board Assy.
• TH Board Assy.
Replace the thermistor.
• TH Board
Assy.(p. 35)
• PS Ballast
Assy.(p. 47)
If damaged, replace the sensor board.
• TH Board
Assy.(p. 35)
• PS Ballast
Assy.(p. 47)
Replace the Optical Engine and MAB set.
• MA Board Assy.
• Optical Engine
Replace the AS Lamp Unit.
• AS Lamp Unit
Clean/replace the PS Air Filter.
• Lower Case
Replace the PS Ballast Assy. (PS's Failure)
• PS Ballast
Assy.(p. 47)
Replace the PS Ballast Assy. (Ballast's failure)
• PS Ballast
Assy.(p. 47)
If not appropriate, request the improvement.
Replace the AS Lamp Unit.
• AS Lamp Unit
Replace the PS Ballast Assy. (Ballast's failure)
• PS Ballast
Assy.(p. 47)
Replace the AS Lamp Unit.
• AS Lamp Unit
Vibrate the Lamp unit.
• AS Lamp Unit
Replace the AS Lamp Unit.
• AS Lamp Unit
Replace the Air Filter Assy.
• Air Filter
(p. 13)
3-7
(p. 26)
(p. 35)
(p. 26)
(p. 35)
(p. 26)
(p. 39)
(p. 12)
(p. 51)
(p. 12)
(p. 12)
(p. 12)
(p. 12)
Revision:A