Checking The Ptt Switch - SELVA MARINE Kingfish 25 Service Manual

G/W G
1
e f
b
Test harness (2 pins) 1: 90890-06867
PTT relay continuity:
a b c
5. Connect the positive battery lead to the
terminal e, connect the negative battery
lead to the terminal b, and then check
the PTT relay for continuity. Replace if
out of specification.
G/W G
1
e f
b
PTT relay continuity:
a b
Charging unit and components / PTT electrical system
Lg
Sb
c
a
d
d e f
Lg
Sb
c
a
d
c d
6. Connect the positive battery lead to the
terminal f, connect the negative battery
lead to the terminal b, and then check
the PTT relay for continuity. Replace if
out of specification.
G/W G
1
e f
b
PTT relay continuity:
a b
7. Disconnect the special service tool, and
then connect the PTT relay coupler, bat-
tery power source, ground lead, and PTT
motor leads.

Checking the PTT switch

1. Disconnect the PTT switch coupler a.
2. Measure the input voltage between the
PTT switch coupler terminal and the
ground.
PTT switch input voltage:
Red (R)–Ground
12.0 V (battery voltage)
Lg
Sb
c
a
d
c d
a
R
5-30
5