Welch Allyn ELSV-24 Hi-Lux Light Source - User Manual - Manual (Page 7)

p.7
USER MAINTENANCE (contd.)
FUSE REPLACEMENT
1. Turn the unit off and disconnect the power cord from both the wall outlet and the
light source.
2. Locate the fuse drawer, which is positioned just above the power cord connector on the
back panel. Unlock the drawer by using a small screwdriver (1/8") to depress and
release the spring loaded snap connection. Pull out the fuse drawer.
3. Remove and replace fuses with new fuses of the same type (see Specifications). There is
no special orientation of the fuses. Be sure to replace both fuses.
4. Reinsert the fuse drawer by pushing it into the drawer socket until it snaps into place.
Note: If the new fuse blows, contact the service center listed in the back of this manual.
Fuse Drawer
Fuse Drawer
Fuses
Snap Connection
p.4
SYSTEM SET-UP AND OPERATION (contd.)
ON/OFF Switch
A two position rocker switch is used to turn the unit on or off. Depressing the side
marked with a " I " turns the unit on, while depressing the side marked with an "O"
turns it off.
Light Intensity Control Ring
The outer ring around the light guide socket rotates to adjust the amount of light
transferred into the light guide. Rotating the ring clockwise will increase the
amount of light in the image and rotating the ring counter clockwise will decrease
the amount of light. This manual control is helpful when trying to better illuminate
one part of the image or when trying to reduce blooming.
Light Guide Turret
The light guide turret enables the light source to accept different light guide fittings
without additional adapters. Simply rotate the turret to position the desired light
guide port in front of the lamp (6:00 position). The most common fitting, and the one
used most predominantly by Everest VIT, is the standard ACMI port. Other fittings
provided are Wolf, Olympus and Storz.
Carry and Operation Pouch (optional)
A custom designed soft carry pouch with shoulder strap is available as an accessory.
The pouch carries the light source on one side with space on the opposite side for
accessories such as light guides, spare lamps, video cables, etc. Specially designed
access ports and vents allow the light source to be operated while inside the pouch.