DHG07-48/42 small cell power user manual<A>
43
6.2 Replace DC fuse
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Preparation
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Prepare tools and materials: labor protection gloves, Phillips screwdriver, flat-blade
screwdriver.
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Prepare new fuses to ensure that the new fuses have the same model and specifications as the
old fuses.
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Background information
The DC fuse is inside the battery or load terminal, as shown below.
Figure 6-2-1 DC fuse
1
(
1
)
DC fuse holder
The DC fuse break fault mainly has the following phenomena:
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The power module is operating normally, and there is no power input at the load end.
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The fuse has obvious black marks.
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Use a multimeter to measure the resistance at both ends of the fuse as infinite or use a
multimeter to measure the on and off status of both ends of the fuse as disconnected.
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Operating steps
Step 1 Put on protective gloves.
Step 2 Record the BAT port cable or LOAD port cable that needs to be replaced.
Step 3 Remove the quick plug terminal.
Step 4 Remove the old fuse. The disassembly process is shown in the figure below.