Christie DS Series Service Manual page 23

B
W/B abnormality
Is the problem YES
solved after executing
FACTORY RESET?
NO
Does light source warning
YES
occur?
LED indicator LIGHT is on and
SERVICE LED blinks 1 to 4 times.
NO
Is the problem YES
solved after turning off
W/B correction?
NO
Check the connection BAD
between LCD panel and
DRIVE PCB.
OK
The following parts may be
failed.
Replace them in turn, and
check if the problem is solved.
Projection lens Assy
Dichroic Assy
Light source unit Assy
Completed
LWU900-DS/LHD878-DS/LWU755-DS
Service Manual
LWU900-DS / LHD878-DS / LWU755-DS
The following parts may be
failed.
Replace them in turn, and
check if the problem is solved.
Light source unit Assy
POWER UNIT CIRCUIT
Is the problem
YES
solved after replacing
MAIN PCB or
DRIVE PCB?
NO
Replace dichroic Assy.
Replace FPC connector.
C
Resolution failure
Is there any
change after adjusting
the focus?
YES
Is the problem
solved after executing
FACTORY RESET?
YES
Completed
22
NO
Replace Projection lens Assy.
NO
Replace Projection lens Assy.
020-001586-01 Rev. 1 (02-2021)
LIT MAN SERV DS Series