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R5906848 /04 DP2K SLP Series 295

25.1 LDM

LDM driver boards mapping

In each Laser Phosphor projector, there is at least one Laser Driver Module (LDM), with several different

Driver boards mounted in them. An LDM can generate two types of errors:

• An error that indicates a problem on the entire LDM case (LDM 1 – [error message]). This may vary from

wiring going to the LDM to a faulty fan or the printed boards malfunctioning. Error handling involving the

LDM errors mostly involve checking/replacing the wiring, replacing the fan, or swapping the entire LDM

• An error that indicates a problem on one of the LDM driver boards (LDM 1–x – [error message]). This may

vary from the wiring connected to the LDM board to the board being faulty. Error handling involves either

checking/replacing the wiring connected to the LDM board, or swapping this one board with a board that

serves the same function.

Since there are different types of boards used, the following images should help you identify which board is

located where.

10SLP

8SLP

+36V MODULE

+24V MODULE

Red Laser Driver

+36V MODULE

+24V MODULE

Low Red Laser Driver

Blue Laser Driver

Image 25-1

The Blue laser driver board can be swapped with the +36V module and vice versa. None of the

other driver boards can be swapped, except with a board that serves the same function.

LDM Vs Laser Banks Mapping

Each Laser Driver Board powers a certain amount of laser banks. Use the following table to figure out which

LDM board drives which laser bank:

Laser Bank

1 LDM 1–2

2 LDM 1–2

3 LDM 1–2

4 LDM 1–3

5 LDM 1–3

6 LDM 1–3

7 LDM 1–4

8 LDM 1–4

9 LDM 1–5

Troubleshooting

Barco DP2K SLP Series Service Manual

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