INDEX: FAILURE / CAUSE
LS200 ELECTRICAL
COMPLAINT / (CONDITION): CAUSE / CORRECTIVE ACTION:
__________________________ _____________________________
Illumination is intermittent .... loose connections, defective wiring or lamp(s) not
(light ‘flickers’) as arm is seated fully in holder. TROUBLESHOOT /
articulated. RESTORE connections /REPLACE defective parts.
(Customer should send
LS200 to Welch Allyn
for service.)
Switch produces arc .... switch is defective or wiring connections are loose /
or flash when operated. intermittent TROUBLESHOOT, REPLACE switch,
(Customer should send connectors.
LS200 to Welch Allyn
for service.)
Fails Dielectric strength .... transformer has electrical insulation failure/current
leak. REPLACE transformer.
Lamps blow very quickly, .... transformer output voltage is too high. Find cause,
less than 30 seconds. ex.: wrong transformer, input voltage too high,
incorrect bulbs.
T E C H N I C I A N N O T E S :
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