Mooney M20K - Exterior Lights - Maintenance Practices; High Intensity, Strobe Lights Maintenance

SERVICE
AND
MAINTENANCE
MANUAL
M20K
MOONE/
AIRCRAFT
CORPORATION
B,
Bulb is
a
friction
fit
type
in
button;
remove
and
33-23-00
GEAR
DOWN
INDICATOR LIGHT
replace
with
new
bulb,
(FLOORBOARD)
C,
Replace
knurled button
with
new
bulb
installed
33-23-01
LIGHT
BULB
REPLACEMENT
into
console,
1.
Remove
lower
belly
panel
to
gain
access
to
light
D.
Check
for
proper
operation,
assembly.
5,
Map
Light
2. Remove
and
replace
bulb.
A,
Place
wrench
on
fiat of
exposed
metal
housing
on
bulb
assembly
from
receptacle.
3.
Check
for
proper
operation.
B,
Screw
on new
bulb
assembly
and
tighten.
4.
Reinstail
belly
panel.
33-40-00
EXTERIOR
LIGHTS
MAINTENANCE
PRACTICES
3340-01
TROUBLE
SHOOTING
EXTERIOR
LIGHTS
TROUBLE
PROBABLE
CAUSE
REMEDY
STROBE
LIGHTS
Lights
inoperative.
Circuit
breaker/switch
tn’pped.
Check
for
short
circuit.
Reset C/B.
Loose
connection.
Check
and
tighten
electrical
connections.
Battery
defective.
Replace
battery
or
use
e~dernal
power.
Circuit
breaker
switch
defective.
Check
continuity
through
switch;
replace
if
necessary.
Faulty
power
supply.
Disconnect
synch
wires
to
identify
faulty
power
supply.
One
bulb
does
not
light.
Bulb
burned out.
Replace
bulb.
Power
supply
inoperative.
Replace.
Fixture
not
grounded.
Check for
good
bonding
between
focture
and
structure.
Tighten
mounting
screws.
Loose
connection.
Check
all connections
in
circuit.
Defective
fi~dure
Replace
fudure.
LANDING
LIGHTS.
NAVIGATION
LIGHTS
AND
TAILLIGHT
Lamp
fails
to
light.
Circuit
breaker/switch
tn’pped.
Check for
short
circuit.
Reset
circuit breaker.
Lamp
bumed
out.
Replace
lamp.
Loose
connection
or
defective
Tighten
connections
and
check
wire,
wire
drruut
continuity.
Replace
or
repair
wire if
necessary.
Circuit
breaker/switch
defective.
Check
continuity
through
switch.
Replace
if
necessary.
33-41-00
HIGH
INTENSITY,
STROBE
LIGHTS
TROUBLE
SHOOTING
AIDS
MAINTENANCE
When
no
lights
are
flashing:
The
strobe
light
po~ver
supply
requires
a
14 VDC
(25-0001
thru
25-0999)
28
VDC
(25-1000
thru
1´•
Check circuit
breaker/switch.
25-TBA)
input
across
the red
and
black
wires.
Red
is
2. To
determine
power
supply
or
flashtube
problems,
positive
and
black is
negative,
or common.
The
voltage
first
check
the
input
voltage
to
the
power
supply.
The
for the
strobe
light
is
supplied
through
Pin
1 and
3
of
~d and
blade
line
should have
14
VDC
(25-0001
thru
the
power
supply
connector
with Pin
2
as
the
trigger
25-0999)/
28
VDC
(25-1000
thru
25-TEA).
If
no
voltage
pulse.
The strobe
light assembly
is
a
potted
assembly
is
present
check
for
shorted
power
leads
or
tripped
and cannot
be
repaired.
circuit
breaker.
If
input
voltage
is
present,
then
connei~ing
each
yellow
wire
together
between
ball
disconnect
the
yellow
sync
wires.
This
will
allow
The
power
supplies
may
be
synchronized
unaffected
units
to
flash.
Determine
defective
light
and
power
supplies
(Hoskins
only).
proceed
to
"one
light
not
flashing"
below.
33-23-00
OLDWILLWAYNE