Removal Of Strobe Power Supply; Installation Of Strobe Power Supply; Troubleshooting Procedure - Piper Dakota Maintenance Manual

STROBE POWER SUPPLY

REMOVAL OF STROBE POWER SUPPLY

Disconnect battery before removal of power supply to prevent
electrical shock.
The strobe power supply is in the fuselage aft section.
l. Remove access panel to the aft section of fuselage in rear baggage compartment.
2. Disconnect electrical plugs (one to four plugs depending on installation).
3. Disconnect other electrical leads.
Make note of the placement of the leads to facilitate
reinstallation.
4. Remove four screws securing power supply to fuselage. Remove power supply.
INSTALLATION OF STROBE POWER SUPPLY (figure 33-1)
l. Position power supply and secure with four screws.
2. Connect electrical leads.
3. Connect electrical plugs.
4. Replace access panel to rear baggage compartment.

TROUBLESHOOTING PROCEDURE

Do not touch components of the strobe system while the battery is
still connected
When disconnecting and connecting the power supply input
connections, do not get the connections reversed. Reversed
polarity of the input voltage will permanently damage the power
supply. This damage is sometimes not immediately apparent, but
will cause failure of the system in time.
When troubleshooting the strobe light system, it must first be determined if the trouble is in the flash tube
or the power supply. Replacement of the flash tube will confirm if the tube is defective. A normally operating
power supply will emit an audible tone of l to l.5 KHz. If there is no sound emitted, check the system as
follows:
When troubleshooting the system, use the appropriate schematic
at the back of this section.
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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—NOTE—
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—CAUTION—
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2D5
33 - 44 - 00
Page 33 - 08
Reissued: August 1, 1986