MODULE LEVEL
Ultralight SV1
101.670
SERVICE MANUAL
Proxima ASA
CONFIDENTIAL
5
7 TROUBLESHOOTING
This troubleshooting guide helps determining what parts to replace if a defective projector comes in for
service. Not all possible defects are described here, only the ones that are most likely to appear.
For replacement procedures, please refer to the
Servicing the Unit
-section following this section. For
pricing details of the various parts, please refer to the Sparepart and Accessories Pricelist-document
on the web. The numbers in brackets ( ) refer to the exploded drawing of the module level elements.
Please also refer to the User Guide for setting up the unit with different sources and other additional
information not available in this document.
P
ROBLEM
P
ROBABLE
C
AUSE
R
EMEDY
White image projected
only
Loss of image data
1. Bad flex cable connection
between main PCB controller
connector and Polysilicone engine
2. Main PCB
controller defective
3. Defective engine
1. Reconnect flex cable connectors (3 pcs)
(See “Work Procedures” in section 7.1.2
task “Main PCB Controller”)
2. Replace defective main PCB controller
and engine (considered one part)
3. Replace defective engine and PCB
controller (considered one part)
Lamp does not start up
(LEDs are lighted on top
panel, fans run)
Loss of lamp power
1. Defective lamp
2. Loss of enable signal to lamp
power supply
(6)
from main PCB
controller
3. Defective main PCB controller
4. Lamp power
(6)
(ballast unit)
defective
5. Defective mains filter
(4)
1. Replace defective lamp
2. Reconnect/secure loose enable
connector
(Green ~ 0.2V/5V, on/off
Red ~ 4V/0.1V, on/off
Black: GND)
3. Replace defective main PCB controller
and engine
4. Replace defective lamp power supply
5. Replace defective mains filter (~ + 400V
DC)
Complete unit
inoperative
(all operations inactive, no
light, no LED, no fan)
No power to internal functions
1. Bad connection between controller
power supply
(5)
to main PCB
controller
2. Broken mains fuse (F1 at mains
filter
(4)
)
3.
Defective mains filter
(4)
1. Reconnect 6 pin PC-edge connector (DC
voltage to main PCB: GND 5V, 6V,
15.3V, 16.5V, 5V, 3.3V seen from front
GND towards projection lens)
2. Replace broken mains fuse
(Schurter Type: SP 2.5A Fast 250 VAC)
3. Replace defective mains filter (~ + 400V
DC)
Garbled video image
Loss of image synch or image data
1. User programmable parameters
illegal
1. Execute Factory Reset
