Barco DP2K SLP Series Service Manual page 356

Troubleshooting
Code 20273: "LDM 1 – heatsink rectifier temperature sensor open"
For this error the same troubleshooting table can be applied to as for code 20261: "LDM 1 — heatsink pfc
temperature sensor open".
Code 20274: "LDM 1 – Bad Communication"
Situation
Difference in software
packages between LCB and
LDM.
Only the Laser Driver Module
has a communication error
There are other
communication errors:
Malfunction LCB
Code 20275: "LDM 1 – No Communication"
Situation
First install of Laser Driver
Module
LDM has no power
Cable issues between LDM
and LCB
There are other LDM
communication errors:
Malfunction LCB
Code 20276: "LDM 1 – Not configured (invalid module type)"
Situation
Older or unsupported software
on Laser Driver Module
LDM type not supported.
Code 20278: "LDM 1 – Not configured (initialization failure)"
Situation
Older or unsupported software
on Laser Driver Module
Wiring issue
356 R5906848 /04 DP2K SLP Series
Solution
Upgrade the software. See procedure "Software update via Communicator
(DC update companion)", page 249.
1. Check if the LDM is powered. Ensure that the LDM is correctly wired.
2. Check if the communication wiring between LDM and Laser Control
Board (connector J500) properly inserted. If problem persists, replace
the communication cable.
3. If problem persists, replace the LDM. See service procedure "Replacing
a Laser Drive Module", page 56.
Replace the LCB. See service procedure "Replacing the Laser Control
Board (LCB)", page 64.
Solution
Upgrade the software. See procedure "Software update via Communicator
(DC update companion)", page 249.
Ensure the LDM is powered. Make sure it is correctly wired.
1. Check communication wiring between LDM and Laser Control Board
(connector J500). Make sure it is properly inserted.
2. If problem persists, replace the communication cable.
1. Check if the communication wire between the LDM, LPM and Laser
Control board (Z3403440) is properly inserted on all ends.
2. If problem persists, replace the LCB. See service procedure "Replacing
the Laser Control Board (LCB)", page 64.
Solution
Upgrade the software. See procedure "Software update via Communicator
(DC update companion)", page 249.
Replace the LDM. See service procedure "Replacing a Laser Drive
Module", page 56.
Solution
Upgrade the software. See procedure "Software update via Communicator
(DC update companion)", page 249.
1. Check communication wiring between LDM and Laser Control Board
(connector J500). Make sure it is properly inserted.
2. If problem persists, replace the communication cable.