SELVA MARINE Kingfish 25, Service Manual

Page: 124 / 398

5-30
5
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.
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.
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.
Test harness (2 pins)
1
: 90890-06867
PTT relay continuity:
a b c d e f
PTT relay continuity:
a b c d
G/W G
Lg
Sb
1
e f
d
c
a
b
G/W G
Lg
Sb
1
e f
d
c
a
b
PTT relay continuity:
a b c d
PTT switch input voltage:
Red (R)–Ground
12.0 V (battery voltage)
Lg
Sb
1
e f
d
c
a
b
G/W G
a
R
Charging unit and components / PTT electrical system