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16. FLM liquid cooling circuit
16.3 Diagnostics
General
Over extended periods there may be small losses of pressure in the liquid cooling system of the projector. It is therefor recommended
to check the pressure at regular intervals. In case the pressure drops below 0,5 bar it is recommended to restore the pressure of
the liquid cooling system.
C
AUTION
:
In case of a rapid loss in pressure check the liquid cooling circuit for leakage. Solve the problem
before starting up the projector.
Troubleshooting cooling loop
•
Any significant or rapid drop in pressure indicates a leakage of liquid. If this be the case, verify whether the circuit shows any
visible sign of liquid leakage.
•
As critical components rely on this liquid cooling, it is essential that any leakage is detected timely.
•
Periodic checking of the liquid cooling pressure is essential to guarantee overall good performance of the projector and the
pump.
•
The factory pressure preset is approximately 1 bar in the ’Projector Off’ status at a room temperature of 25 °C. This may drop
slightly during operation.
Too high ambient temperature
An Error or warning message “Ambient temp high” is displayed on the local LCD panel.
Possible cause
Solution
Ambient temperature of the projector is too high.
Measure the ambient temperature nearby the projector. In
case the measured temperature is higher than 40 °C take
the necessary measurements to ensure that the ambient
temperature is below 40 °C.
Blocked high density filter at the front side of the projector
Replace the blocked high density filter at the front side of the
projector with a new high density filter.
One of the DMD’s is too high in temperature
An Error or warning message “[Red/Green/Blue] DMD temp high” is displayed on the local LCD panel.
Possible cause
Solution
Malfunction Peltier element of the involved DMD. Only one
DMD is too high in temperature while the other two DMD’s
have a normal and almost equal temperature.
1.
Check if the wire unit of the involved Peltier is connected
with the interface board.
2.
Check if the wire unit of the temperature sensor (NTC) is
connected with the interface board.
3.
Check the fan control board. In case of malfunctioning
replace the board.
4.
Defect Peltier element. Replace Peltier.
The wire units of two Peltier elements or there respective
temperature sensors (NTC’s) have been swapped. While the
temperature of one DMD is too high, the other will most likely
be to low.
Check if the wire units of all Peltiers and all temperature
sensors (NTC’s) are plugged in there respective connector
sockets on the interface board.
Poor assembly of DMD or P cooler block.
Reinstall the Peltier.
All DMD’s are too high in temperature
An Error or warning message “[Red/Green/Blue] DMD temp high” is displayed on the local LCD panel.
Possible cause
Solution
The liquid cooling circuit of the light processor is mistakenly
excluded from the main liquid cooling circuit.
Check of the cooling circuit of the light processor is connected
with the pump and heat exchanger.
R59770072 FLM SERIES 19/03/2007
157
Summary of Contents for FLM series
Page 1: ...FLM series Service manual R59770072 00 19 03 2007...
Page 6: ...Table of contents 4 R59770072 FLM SERIES 19 03 2007...
Page 10: ...1 Safety 8 R59770072 FLM SERIES 19 03 2007...
Page 86: ...6 Removal and installation of projector covers 84 R59770072 FLM SERIES 19 03 2007...
Page 96: ...8 Lamp and lamp house 94 R59770072 FLM SERIES 19 03 2007...
Page 102: ...9 Input communication unit 100 R59770072 FLM SERIES 19 03 2007...
Page 125: ...13 Cold mirror assembly Image 13 5 Remove of cold mirror R59770072 FLM SERIES 19 03 2007 123...
Page 130: ...13 Cold mirror assembly 8 Reinstall the side cover 128 R59770072 FLM SERIES 19 03 2007...
Page 133: ...14 Lens holder F Image 14 4 R59770072 FLM SERIES 19 03 2007 131...
Page 140: ...14 Lens holder 138 R59770072 FLM SERIES 19 03 2007...
Page 154: ...15 Vertical and Horizontal shift motors 152 R59770072 FLM SERIES 19 03 2007...
Page 180: ...16 FLM liquid cooling circuit 178 R59770072 FLM SERIES 19 03 2007...
Page 190: ...17 Heat exchanger 188 R59770072 FLM SERIES 19 03 2007...
Page 204: ...18 Cooling pump 202 R59770072 FLM SERIES 19 03 2007...
Page 208: ...19 Shutter replacement 206 R59770072 FLM SERIES 19 03 2007...
Page 212: ...20 Formatter Interface Board 210 R59770072 FLM SERIES 19 03 2007...
Page 217: ...21 Pixel map processor board Image 21 7 PMP removal R59770072 FLM SERIES 19 03 2007 215...
Page 220: ...21 Pixel map processor board 218 R59770072 FLM SERIES 19 03 2007...
Page 228: ...22 LCD panel replacement 226 R59770072 FLM SERIES 19 03 2007...
Page 234: ...23 Keypad board replacement 232 R59770072 FLM SERIES 19 03 2007...
Page 288: ...25 Peltier replacement 286 R59770072 FLM SERIES 19 03 2007...
Page 314: ...28 Start pulse generator 312 R59770072 FLM SERIES 19 03 2007...
Page 326: ...Glossary 324 R59770072 FLM SERIES 19 03 2007...