Checking The Ptt Relay; Checking The Ptt Switch - SELVA MARINE Blue Whale 250 EFI Service Manual

BRKT

Checking the PTT relay

1. Check the PTT relay for continuity.
Replace if out of specification.
a
2
NOTE:
Be sure to set the measurement range a
when checking for continuity.
PTT relay continuity
Sky blue (Sb) –
Terminal 4
Light green (Lg) –
Terminal 4
Terminal 1 – Terminal 4
Terminal 2 – Terminal 4
Terminal 1 – Terminal 3
Terminal 2 – Terminal 3
2. Connect the light green (Lg) lead to the
positive battery terminal and the terminal
4 lead to the negative battery terminal
as shown.
3. Check for continuity between terminals
1 and 3. Replace the PTT relay if there
is no continuity.
3
7-47
Bracket unit
Lg
Sb
3
1
4
S6P27260J
Continuity
Continuity
No continuity
Lg
Sb
1
4
S6P27270J
4. Connect the sky blue (Sb) lead to the
positive battery terminal and the terminal
4 lead to the negative battery terminal
as shown.
5. Check for continuity between terminals
2 and 3. Replace the PTT relay if there
is no continuity.
2

Checking the PTT switch

1. Check the PTT switch for continuity.
Replace if out of specification.
Switch Sky blue
position (Sb)
Up
Free
Down
Lg
Sb
3
4
S6P27280J
Lead color
Light green
Red (R)
(Lg)
6P23H11