Barco DP2K-12C Service Manual page 59

Code 5491: "smps fan - voltage high" (Warning)
Situation
Malfunction Fan Control board or
SMPS board.
Code 5492: "smps fan - voltage too low" (Error)
This error code is probably preceded by the warning code 5493: "smps fan - voltage low". The same troubleshooting table can be
applied.
Code 5493: "smps fan - voltage low" (Warning)
Situation
Malfunction Fan Control board or
SMPS board.
Short circuit or bad connection.
Damaged insulation of the wire
unit (reference 3 & 4image 4-31)
of the SMPS fans (reference 1 &
2image 4-31).
Malfunction Signal Backplane (bad
connection)
Image 4-31
SMPS fans connection
Code 5571: "lamp rear fan - voltage high" (Warning)
Situation
Malfunction Fan Control board or
SMPS board.
Code 5572: "lamp rear fan - voltage too low" (Error)
This error code is probably preceded by the warning code 5573: "lamp rear fan - voltage low". The same troubleshooting table can
be applied.
R5905043 DP2K-12C/11CX 19/02/2018
Solution
Measure on the Signal Backplane the +24V voltage on pin 9, 10, 11 or 12 of the
connector of the black wire unit which comes from the SMPS board. See image 4-26.
If the measured voltage is about 24V 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.
Solution
Measure on the Signal Backplane the +24V voltage on pin 9, 10, 11 or 12 of the
connector of the black wire unit which comes from the SMPS board. See image 4-26.
If the measured voltage is about 24V 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.
1. Check the Signal Backplane for bad connections. Ensure that all wire units are
well connected.
(Note that the +24V supply is generated on the SMPS board and enters the Fan
Control board and Cinema Control board via the Signal Backplane)
2. Check the wiring of the Anode fan for short circuits.
3. Check the wiring of the Cathode fan for short circuits.
Check the insulation of the wire unit of the SMPS fans. The two SMPS fans are located
behind the front filter (two lower fans).
1. Repair the insulation of the wire unit using shrink sleeve.
2. If not repairable replace the Cathode fan. See "Lamp cathode fan", page 319.
Replace the Signal Backplane. See "Replacement of the signal back plane", page 231.
4
3
2
1
Solution
Measure on the Signal Backplane the +24V voltage on pin 9, 10, 11 or 12 of the
connector of the black wire unit which comes from the SMPS board. See image 4-26.
If the measured voltage is about 24V 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.
4. Troubleshooting
55