MODULE LEVEL
Ultralight SV1
101.670
SERVICE MANUAL
Proxima ASA
CONFIDENTIAL
6
P
ROBLEM
P
ROBABLE
C
AUSE
R
EMEDY
Excessive fan noise
Main fan(s) defective
1. Fan
(3)
defective
2. Fan mount out of position
1. Replace defective fan(s)/fanhouse
complete
2. Secure fan mount
Fan(s) is/are inoperative
Loss of power to fan(s)
1. Loose fan(s)
(3)
wiring connector
2. Defective fan(s)
(3)
3. Defective main PCB controller
1. Reconnect/secure wiring
2. Replace defective fan(s)/fanhouse
complete
3. Replace defective PCB controller
Dark spot in the middle
of the image, increasing
in size
Overheating of Polysilicone LCD
module
1. Dirty dustfilter
2. Loose Polysilicone engine fan
power connector
3. Defective Polysilicone engine fan
4. Defective lamp (too much heat
radiation)
5. Defective main PCB controller
1. Clean/replace dustfilter
2. Reconnect/secure loose Polysilicone
engine fan power connector
3. Return engine fan to producer for
replacement
4. Replace defective lamp
5. Replace defective PCB controller and
engine
Red, green or blue
colours are misaligned
in image
LCD modules misaligned in
Polysilicone engine
Centre of coinciding pixels may be up to 1,5
pixels’ width apart (gap of 0.5 pixels
between). This is still inside optical
specification
Line of pixels in different
color crossing the
image (hor/vert)
Defective line of pixels in LCD
module of the Polysilicone engine
Entire engine and main PCB controller
needs to be replaced
Parts of the projected
image are discoloured
or white
Defective field in LCD module of the
Polysilicone
Entire engine and main PCB controller
needs to be replaced
Image projected as
vertical or horizontal
lines only
Loss of image synch or image data
1. User programmable parameters
illegal
2. Bad connection between main
PCB controller controller
and
engine
3. Defective Polysilicone engine
4. Defective main PCB controller
1. Execute Factory Reset
2. Reconnect flex cable connector (See
“Work Procedures” in section 7.1.2)
3. Replace defective Polysilicone engine
and main PCB controller
4. Replace defective main PCB controller
and Polysilicone engine