Mooney M20M - High Intensity Strobe Lights-Maintenance

MOON
EY
AIRCRAFT
CORPORATION
M20M
SERVICE AND
MAINTENANCE
MANUAL
TROUBLE
PROBABLE
CAUSE
REMEDY
Loose
connection
or
Tighten
connections
and check
wire
defective
wire.
circuit
continuity.
Replace
or
repair
wire
if
necessary.
Circuit
breaker/switch
Check
continuity through
switch.
defective.
Replace
if
necessary.
33-41-00
HIGH
INTENSITY
STROBE
LIGHTS-MAINTENANCE
The
strobe
light
power
supply
requires
a
28
VDC
input
across
the red
and
black
wires.
Red
is
positive
and
o""FWD
black
is
negative,
or
common.
The
voltage
for
the
strobe
light
is
supplied
through
Pin
1
and
3
of the
power
supply
connector
with
Pin
2
as
the
trigger
pulse,
go
2
The
strobe
light
assembly
is
a
potted
assembly
and
cannot
be
repaired.
The
power
supplies
may
be
synchronized
by
O
connecting
each
yellow
wire
together
between
all
power
supplies
(Hoskins
only).
TROUBLE
SHOOTING
AIDS
When
no
lights
are
flashing:
1.
Check
circuit
breaker/switch.
1
O
2.
To
determine
power
supply
or
flashtube
problems,
first
check
the
input
Mnage
to
the
power
supply.
The
O
~Es
red and black
line should
have
28 VDC.
If
no
voltage
is
POWER
SUPPLY
present
check
for
shorted
power
leads
or
tripped
circuit
breaker. If
input
voltage
is
present,
then
disconnect
the
yellow
sync
wires.
This
will allow
unaffected
units
to
flash.
Determine
defective
light
and
proceed
to
"one
VIEW
LOOKING
UP
LEFT WING
light
not
flashing"
below.
INSPECTION
COVER
TYPICAL
When
one
light
not
flashing:
LOCATION
RIGHT
WING
1.
To
determine
power
supply
or
flashtube
problems,
first
check the
input
voltage
to
the
power
supply.
The
red and
black
line
should
have
28
VDC.
If
no
voltage
is
present
then
check
for
shorted
power
leads,
blown
STROBE
LIGHT POWER
SUPPLY FIGURE
33-2
inline
fuses,
or
circuit breaker.
If
input
voltage
is
present,
then
disconnect
the
connector
to
the
WARNING
flashtube.
400-500VDC
should
be
present
across
Pin
1
High
voltage
is
involved
in the
circuit between
and
3
of the
power
supply.
If
not,
the
power
supply
has
the
power
supply
and
strobe
light
assemblies.
no
output
and
is
defective.
Turn
off
master
switch.
Although
a
bleed-off
resistor is
incorporated
in
2.
If
voltage
is
present
across
Pin
1
and
3
of the
power
the
power
supply
circuit,
turn
the
control switch
supply,
connect
a
I<nown
good
flashtube
to
the
power
for the
strobe
lights
OFF
and allow
at
least
20
supply.
If
good
Rashtube
fails
to
operate,
power
supply
is
minutes
to
elapse
prior
to
disconnecting
the
defective.
If
good
RasMube
operates,
We
old
flashtube
is
cables
at
the
power
supply
or
strobe
light
defective.
Replace
Rashtube.
assemblies
before
handling
either
of
these
units
in
any
way.
Failure
to
observe these
3.
Be
sure
yellow
syne
wire is
insulated
and
not
precautions
may
result in
physical
injury
from
grounded.
electrical
shock.
3391-01
POWER
SUPPLY
C.
Disconnect
wiring
harness
between
power
UNIT-REMOVAL
OR
supply
and
strobe
light. (See
warning
above).
REPLACEMENT
D.
Remove
screws
securing
the
power
supply
to
1.
WING
TIP
STROBE
POWER
SUPPLY.
the
inspection
panel
and
remove
the
unit.
A.
Gain
access
to
wing
tip
power
supply
through
2´•
TAIL
STROBE LIGHT
POWER
SUPPLY.
bottom
inspection
cover
(1)
near
wing tip
(See
Figure A. Gain
access
to
this
unit
through
the
inspection
33-2).
Power
supply (2)
is
physically
attached
to
this
cover on
the
aft,
left
hand
side of
the
tailcone. The
inspection
cover,
power
supply
is
physically
mounted
to
this
inspection
B.
Disconnect
wiring
connections
between
switch
cOve’.
and
power
supply.
33-41-00
4-99
OLDWILLWAYNE