Barco DP2K-12C Service Manual page 76

4. Troubleshooting
Code 6073: "++12v - voltage low" (Warning)
Situation
Malfunction Fan Control board or
SMPS board.
Short circuit or bad connection.
Code 6082: "lens motors - voltage too low" (Error)
Situation
The supply voltage for the lens
motors is below its minimum.
Code 6123: "icp fan - speed low" (Warning)
Situation
Wire unit (reference 2 image 4-44)
disconnected from the Signal
Backplane.
Blocked fan (reference 1
image 4-44).
Damaged wire unit.
Malfunction Fan Control board.
Fan end of life.
72
Solution
Measure on the Signal Backplane the ++12V voltage on pin 1, 2 or 3 of the connector of
the black wire unit which comes from the SMPS board. See image 4-43.
If the measured voltage is about 12V then replace the Fan Control board. See
"Removing a board in the card cage", page 213. Otherwise replace the SMPS board.
See "Replacement of the Switched Mode Power Supply", page 281.
Check the Signal Backplane for bad connections.
Solution
Measure on the Signal Backplane the +24V voltage on pin 9, 10, 11 or 12 of the
connector of the wire unit which comes from the SMPS board. See image 4-43.
(The supply voltage for the lens motors is derived form the +24V on the Cinema
Controller board. The +24V supply is generated on the SMPS board and enters the Fan
Control board and Cinema Control board via the Signal Backplane. )
If the measured voltage is about 24V then:
1. reseat the Cinema Controller board. See "Removing a board in the card cage",
page 213.
2. if the problem remains, replace the Cinema Controller board.
If the measured voltage is not OK then:
1. Check the Signal Backplane for bad connections or short circuits. Ensure that all
wire units are well connected.
2. Check the wiring of the Anode fan for short circuits.
3. Check the wiring of the Cathode fan for short circuits.
4. replace the Fan Control board. See "Removing a board in the card cage", page 213.
5. replace the SMPS board. See "Replacement of the Switched Mode Power Supply",
page 281.
Solution
Remove the Card Cage cover from the projector and check if the wire unit (reference 2
image 4-44) is inserted in the Signal Backplane.
Remove the Fan Control board and look inside the compartment to check if the fan is
not blocked. Unblock the fan. Ensure that the fan can turn freely. See "Removing a
board in the card cage", page 213.
Remove the Fan Control board and look inside the compartment to check the wire unit
of the ICP fan. Repair if possible, otherwise replace with new one. See "Integrated
cinema processor fan", page 330.
Replace the Fan Control board. See "Removing a board in the card cage", page 213.
Replace the fan. See "Integrated cinema processor fan", page 330..
R5905043 DP2K-12C/11CX 19/02/2018