Cessna 150K - Page 220

16-46. TROUBLE SHOOTING (Cont).
TROUBLE
PROBABLE CAUSE
REMEDY
FLASHING
BEACON DOES
Open circuit in wiring. 4.
Test circuit from lamp to
NOT LIGHT (Cont).
flasher for continuity. If no
continuity is present, repair or
replace wiring. If continuity is
present, proceed to step 5.
Defective switch. 5.
Check voltage at flasher with
master and beacon switch on.
Should
re ad battery voltage.
Replace switch.
If voltage is
present, proceed to step 6.
Defective flasher.
6. Install new flasher.
FLASHING BEACON Defective flasher.
1.
Install new flasher.
CONSTANTLY LIT.
ALL NAY LIGHTS OUT.
Short circuit in wiring.
1.
Inspect fuse/circuit breaker.
If open, proceed to step 2.
If OK,
proceed to step 3.
I
Defective wiring.
2. Isolate and test each nav light
circuit until short is located.
Repair or replace wiring.
Defective switch.
3.
Check voltage at nav light with
master and nav light switches on.
Should read battery voltage. Re-
place switch.
ONE NAY LIGHT OUT.
Lamp burned out.
1.
Inspect lamp.
Replace lamp.
Open circuit in wiring.
2.
Test wiring for continuity.
Repair or replace wiring.
ONE ANTI-COLLISION
Flash tube burned out.
Test with new flash tube. Replace
STROBE LIGHT DOES
flash tube.
NOT LIGHT. THRU
1972
MODELS.
Faulty wiring.
Test for continuity. Repair or
replace.
Faulty trigger head.
Test with new trigger head.
Replace trigger head.
BOTH ANTI-COLLISION
Circuit breaker open.
Inspect.
Reset.
STROBE LIGHTS WILL
NOT LIGHT. THRU
1972
MODELS. Faulty power supply.
Listen for whine in power supply
to determine if power is operating.
Faulty switch.
Test for continuity.
Repair or
replace.
16-14
Change 3