Table 5-1. Troubleshooting

TM 5-3610-220-14

Table 5-1. Troubleshooting - Continued

Malfunction

Probable Cause

Corrective Action

4. Pulsed Xenon Light Unit IL1500L).

NOTE

Before assuming that a light unit or a power supply channel is out verify the

condition by making sure that the suspect light does not work on any outlet If an

outlet is suspect, check that no light unit works on that outlet If an outlet is bad,

the power supply must be referred to high echelon for repair, since it does not

contain any user serviceable parts.

WARNING

Before beginning a tube replacement, make sure that the light unit is not

connected to the power supply.

a. No light, fan runs normally.

a. Tube failure.

a. Replace tube.

b. High voltage breakdown.

b. Refer to service technician.

c. Trigger circuit failure.

c. Refer to service technician.

d. Thermal safety circuit open.

d. Refer to service technician.

e. Cover glass safety circuit open.

e. Unit MUST have cover glass, with safety

pin place, to operate. Check that cover

glass has safety pin epoxied to one edge.

If pin is broken off, refer to factory. Pin

must align with hole in flange for proper

operation of safety circuit. When installing

cover glass a "click" should be heard when

safety switch is closed. Fasten cover glass

in place with glass clip and screws.

b. Light stutters at start of exposure.

a, b, or c above.

c. Light starts okay after 1 to 5 second

a, b, or c above.

delay.

WARNING

Disconnect light unit form power supply before removing

cover glass, or before servicing light unit in any way.