Proxima Ultralight SV1 Service Manual page 6

MODULE LEVEL
SERVICE MANUAL
P
ROBLEM
Excessive fan noise
Fan(s) is/are inoperative
Dark spot in the middle
of the image, increasing
in size
Red, green or blue
colours are misaligned
in image
Line of pixels in different
color crossing the
image (hor/vert)
Parts of the projected
image are discoloured
or white
Image projected as
vertical or horizontal
lines only
Proxima ASA
Ultralight SV1
P C
ROBABLE AUSE
Main fan(s) defective
(3)
1. Fan defective
2. Fan mount out of position
Loss of power to fan(s)
(3)
1. Loose fan(s) wiring connector
(3)
2. Defective fan(s)
3. Defective main PCB controller
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
LCD modules misaligned in
Polysilicone engine
Defective line of pixels in LCD
module of the Polysilicone engine
Defective field in LCD module of the
Polysilicone
Loss of image synch or image data
1. User programmable parameters
illegal
2. Bad connection between main
PCB controller controller
engine
3. Defective Polysilicone engine
4. Defective main PCB controller
R
EMEDY
1. Replace defective fan(s)/fanhouse
complete
2. Secure fan mount
1. Reconnect/secure wiring
2. Replace defective fan(s)/fanhouse
complete
3. Replace defective 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
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
Entire engine and main PCB controller
needs to be replaced
Entire engine and main PCB controller
needs to be replaced
1. Execute Factory Reset
2. Reconnect flex cable connector (See
and " 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
6
101.670
CONFIDENTIAL