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ELECTRICAL SYSTEM 14-61
Multifunction Meter
Tachometer Inspection
•
Connect the 12 V battery and terminals in the same man-
ner as specified in the “Display Function Inspection”.
•
The revolutions per minute (rpm) equivalent to the input
frequency is indicated in the oscillator [A] if the square
wave (illustrated as shown) would be input into the termi-
nal [7].
JT1500-A2 model ∼ [B]
JT1500-A1 model [C]
○
The tachometer indicates approximately 3 000 r/min
(rpm) in case the input frequency would be approxi-
mately 100 Hz.
If the tachometer does not work normally, replace the me-
ter assembly.
Battery S ymbol/bAt Ch aracters/LED Inspection
•
Connect the 12 V battery and terminals in the same man-
ner as specified in the “Display Function Inspection”.
•
Check that the battery symbol/bAt characters/LED flash
when the input voltage to the terminal [A] is lowered to
12 volts or less. And check that the meter returns in the
state of normality when the input voltage to the black lead
terminal is raised to 12.5 V or more.
If any display function does not work, replace meter as-
sembly.