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Fuse replacement
DANGER! Disconnect from power before opening covers. Replace fuses with ones of the same
type and rating only.
Important! The PCBs are sensitive to ESD (electrostatic discharge). Take precautions to avoid
ESD damage. Avoid touching electronic components.
LC 1140 and LC 2140 panels are protected by three 5 amp slow-blow fuses on the three power supplies in
the panel base.
To replace a fuse:
1. Disconnect the panel from power and allow to cool for 10 minutes.
2. See Figure 18. Remove four screws (arrowed) from a base cover and lift the cover up slightly for access
to the fuse. Avoid pulling hard on covers, as this will strain the wiring.
3. Replace the defective fuse with one of the same type and rating only. Replacement fuses are available
from Martin suppliers.
4. Reinstall the cover before reapplying power.
26
Figure 18: Fuse replacement
LC 1140/2140 user manual
Torx 10
Torx 10
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