Yamaha RS90RK Service Manual page 148

FUSE INSPECTION
FUSE INSPECTION
The following procedure applies to all of the fuses.
CAUTION:
To avoid a short circuit, always set the main
switch to "OFF" when checking or replacing a
fuse.
1. Inspect:
• Continuity
Inspection steps:
• Connect the pocket tester to the fuse and check
the continuity.
NOTE:
Set the pocket tester selector to "Ω × 1".
Pocket tester:
90890-03112, YU-03112-C
• If the pocket tester indicates "∞", replace the
fuse.
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