Ptt System; Checking The Ptt Relay - Yamaha F30B 2018 Service Manual

PTT system

Checking the PTT relay

1. Measure:
• PTT relay input voltage
Out of specification  Check the wire har-
ness for continuity.
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a. Remove the caps.
b. Measure the input voltage between the
PTT relay terminal "a" and terminal "b".
b
a
Input voltage
12 V
Terminal "a"–Terminal "b"
c. Install the caps.
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2. Check:
• PTT relay continuity
Out of specification  Replace.
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a. Disconnect the battery power source,
ground lead, PTT motor leads, and PTT
relay coupler.
Before disconnecting the PTT relay termi-
nals, make sure to disconnect the battery
negative terminal.
b. Remove the PTT relay.
c. Connect the special service tool "1".
d. Check the PTT relay for continuity.
G/W G
e
Test harness (2 pins) "1"
90890-06867
Test harness (2 pins) "1"
YB-06867
PTT relay continuity
"a" "b"
e. Connect the positive battery lead to the
terminal "a", and the negative battery lead
to the terminal "b", and then check the PTT
relay for continuity.
G/W G
a
PTT relay continuity
"b"
5-44
PTT system
Lg
1
f
b
"c" "d" "e"
Lg
Sb
b
"c" "d"
Sb
c
a
d
"f"
d
c
e
"e"