Checking The Ptt Switch (Tiller Handle Model); Checking The Trim Sensor - Yamaha F30B 2018 Service Manual

Checking the PTT switch (tiller handle
model)
1. Measure:
• PTT switch input voltage
Out of specification  Check the wire har-
ness for continuity.
Input voltage
12 V
Red (R)–Ground
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a. Disconnect the PTT switch connectors "a".
b. Measure the input voltage between the
PTT switch connector and ground.
c. Connect the PTT switch connectors.
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2. Check:
• PTT switch continuity
Out of specification  Replace.
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a. Disconnect the PTT switch connector.
b. Check the PTT switch for continuity.
Sb
a
R
b
c
Lg
a
R
UP
DN
a
Sb
b
R
Lg
c
PTT switch continuity
Switch po-
sition
UP
Free
DN
c. Connect the PTT switch connector.
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Checking the trim sensor

1. Measure:
• Trim sensor resistance
Out of specification  Replace.
Free position resistance
239–379  (F30A, F30BET,
F30HA, F40A, F40FET, F40HA)
Setting resistance
9–11  (F30A, F30BET, F30HA,
F40A, F40FET, F40HA)
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a. Disconnect the trim sensor coupler "a",
and then remove the trim sensor.
b. Measure the trim sensor resistance.
5-46
PTT system
Terminal
"a" "b"
a
"c"