Barco DP2K-12C Service Manual page 35

Code 5005: "lamp power supplies - communication failed" (Error)
Situation
Mains power interruption of the LPS
units. None of the diagnostic LEDs
of the LPS units lit up. Note that
the projector electronics remain
operational in case an UPS unit is
used (This situation can not appear
in case no UPS unit is used)
Power cables disconnected from the
Mains Input sockets of the LPS units.
LPS communication cable
disconnected from the CTLB-IN port
of the first LPS unit in the LPS rack.
Disconnected blue LPS cascade
wire unit (CTLB-IN / CTLB-OUT).
LPS communication cable
disconnected form the Signal
Backplane.
Malfunction of one of the LPS
modules. The red LED "ERR" of the
malfunction LPS module lit up.
1
Image 4-4
Power connection
Image 4-5
Data connection LPS side
R5905043 DP2K-12C/11CX 19/02/2018
Solution
Check the voltage of the mains power (commercial net, reference 1 of image 4-4) which
enters the backside of the projector to supply the LPS units.
Check if the power cables (reference 2 of image 4-4) are connected with the LPS units.
Check if the LPS communication cable (reference 4 of image 4-5) is connected with the
CTLB-IN port of the first LPS unit in the LPS rack of the projector.
Reconnect the blue wire unit (reference 5 image 4-5) between the "CTLB-IN" and
"CTLB-OUT" sockets of the LPS units.
Check if the LPS communication cable (reference 7) of image 4-6) is connected with the
Signal Backplane.
Replace the malfunction LPS unit. See chapter "Lamp power supply", page 283 or
"Lamp power supply (single module)", page 291.
Image 4-6
LPS data connection Signal backplane
4. Troubleshooting
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