PS Magazine - TB 43-PS-497

PS Magazine - TB 43-PS-497 - Page 4 of 51

Dear EditoR

We were running through lots of LCSS bulbs for the test results

display's lamp driver until we discovered the culprit

orro±ion.

Corrosion in the lamp socket

was limiting the current that

could get to the bulb² To com-

pensate, we would tu³ up the

lamp driver´s resistor to get

more light. µhe extra current

would worsen the corrosion and

bu³ up the bulb fast.

Once we took apa¶ the socket

and cleaned out the corrosion

with a stiF· non¸metal/l¹ brush·

we began to get the full life out

of the bulbs.

Bulb life can also be aFected

by the bulb's alignmentº If the

bulb »lament ¼sn´t ¼n a straight

line with the socket and parallel

to the electronics rack½ the

socket ¼s bad and needs to be

replaced.

SSG Daniel Walker

Tutorials