C & D Flashlight
ML Rev.1 8/03 421-000-391
2
TROUBLESHOOTING
for Mag-Lite® C&D Cell Flashlights
Troubleshooting a non working flashlight must be done prior to
commencing any repair operations
1. FLASHLIGHT FAILURE: Check the lamp and the batteries with the meter.. If the
lamp has burned out, be sure to replace it with the correct size genuine Mag
replacement lamp. Each battery should test at least 1.4 volts (see testing
procedures on the following pages.
2. FLASHLIGHT DOES NOT TURN ON OR STAY ON: Check the tail cap. The shiny
metal surfaces on the Tail cap and barrel should be clean and free of any
obstructions (see cleaning instructions on the following pages)
3. If all the above steps have been followed and the flashlight still does not perform
properly, replace the switch as shown in the repair manual.
LAMP TEST - STEP 1
Meter settings
• Black probe in COM port
• Red probe in VΩmA port
• Set dial at
o
)
)
) setting
LAMP TEST - STEP 2
PR based lamps - Probe Placement
• Place Red probe on the positive tip of the lamp.
• Place Black probe anyplace on the metal base
• If the lamp is good you will get a 000 or higher
reading
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