Barco FLM series Service Manual page 45

SB
L
SG
SR
Image 3-20
SB Wire unit of temperature sensor at the rear of the DMD of the blue channel.
SG Wire unit of temperature sensor at the rear of the DMD of the green channel.
SR Wire unit of temperature sensor at the rear of the DMD of the red channel.
L Wire unit of temperature sensor on the cooling block at the light pipe entrance (HD version only).
CA Wire unit of the cat eye.
SH Wire unit of the shutter.
LS Wire unit of the light sensor inside the light pipe.
PR Wire unit of press sensor on the prism.
DB Wire unit of the TEC of the blue channel.
DG Wire unit of the TEC of the green channel.
DR Wire unit of the TEC of the red channel.
Error 7698 : "Light pipe temp high"
This error may be preceded by a warning. This error can only appear on the FLM HD series.
Situation
Interruption of the liquid cooling
circuit.
The liquid cooling circuit of the light
processor is mistakenly excluded
from the main liquid cooling circuit.
Water cooling pump electrical
disconnected.
Blocked high density filter of the
heat exchanger.
No or insufficient liquid inside the
cooling circuit. The pump is sucking
air and sounds noisier then normal.
Malfunction pump of the water
cooling circuit. You don't feel any
vibrations when touching the pump
after activating the "Refill mode" via
the user interface:
Service > Refill mode >
Yes
Note: to exit the "Refill mode" you
have to switch off the projector.
Misalignment of the lamp inside the
lamp house.
Misalignment of the cold mirror.
Error 7927 : "fan speed mains input too low"
This error may be preceded by a warning.
R59770072 FLM SERIES 19/03/2007
CA
SH
DG
PR
Solution
Check if the loop of the liquid cooling circuit is closed.
Reconnect the cooling circuit of the light processor with the pump and heat exchanger.
Check if the wire unit (ref Cimage 3-13) of the pump is properly connected.
Replace the blocked high density filter with a new one. See chapter "Dust filters",
page 85.
Fill the cooling circuit with liquid and expel all air. Pressurize the circuit. See "FLM
liquid cooling circuit", page 153.
• Check the electrical resistance of the pump's winding. Replace the pump if infinite.
See "Cooling pump replacement", page 197.
• Drain the liquid cooling circuit, open the pump and check if the pump is not blocked.
If so, remove the rotor (ref R image 3-13) and clean the bearings of the pump. See
"Maintaining the cooling pump", page 190.
• Readjust the Z-alignment of the lamp, see "Realignment of the lamp in its reflector",
page 93.
• Replace lamp house with new lamp house.
Readjust the cold mirror, see "Adjusting the cold mirror", page 127.
DB
LS
DR
3. Troubleshooting
43