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Modifying or tampering with the detector’s internal
components can cause a malfunction and might invali-
date its warranty. If your detector is not operating as it
should, take it to your local RadioShack store for assis-
tance.
REPLACING THE FUSE
If the detector stops operating, follow these steps to
check the fuse in the power cord’s cigarette-lighter plug
and replace the fuse, if necessary.
1. Carefully turn the knurled ring on the cigarette-
lighter plug counterclockwise to unscrew it.
Caution: If you must use pliers to loosen the ring,
be careful not to crush the ring or the metal tip
inside the ring.
2. Carefully remove the ring and tip from the cigarette-
lighter plug, then remove the old fuse.
Note: Take care not to lose the ring or tip, or the
spring inside the plug.
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