Barco DP2K-12C, Service Manual

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4. Troubleshooting
Situation Solution
Malfunction Fan & Motor Control
board. Replace the Fan & Motor Control board. See "Removing a board in the card cage",
page 213
Malfunction signal backplane Replace the signal backplane, see "Replacement of the signal back plane", page 231.
Code 5393: “dmd blue fan - voltage low” (Warning)
Situation Solution
Malfunction SMPS module. All other
fans also report voltage low error. Replace the SMPS module. See "Replacement of the Switched Mode Power Supply",
page 281
Damaged insulation of the wire unit
of the DMD blue fan. Remove the Light Processor from the projector and check the insulation of the wire
unit of the fan.
1.
Repair the insulation of the wire unit using shrink sleeve.
2. If not repairable, replace the whole wire unit and fan.
Malfunction Fan & Motor Control
board. Replace the Fan & Motor Control board. See "Removing a board in the card cage",
page 213
Malfunction signal backplane Replace the signal backplane, see "Replacement of the signal back plane", page 231.
Code 5431: “cold mirror fan - voltage high” (Warning)
Situation Solution
Malfunction Fan Control board or
SMPS board. 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.
12 24
+24V
11 23
10 22
9 21
8 20
+VTEC
GND
7 19
6 18
5 17
4 16
3 15
++12V
2 14
1 13
24
24
13
13
Image 4-26
Code 5432: “cold mirror fan - voltage too low” (Error)
This error code is probably proceeded by the warning code 5433 : “cold mirror fan - voltage low”. The same troubleshooting table
can be applied.
Code 5433: “cold mirror fan - voltage low” (Warning)
Situation Solution
Malfunction Fan Control board or
SMPS board. 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.
Short circuit or bad connection.
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.
R5905043 DP2K-12C/11CX 19/02/2018 51