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assembly back into the enclosure. Proper installation has been 
achieved when the all of the indicators and switches are aligned at 
the front panel and the rear panel bezel is fully mated into the 
enclosure. DO NOT FORCE THE UNIT INTO THE ENCLOSURE. 
THIS USUALLY INDICATES THAT THE PC BOARD WAS NOT 
INSERTED INTO THE 2 SLOTS PROPERLY.

K.

Reinstall the two metal screws that were removed as instructed in
Step E, above.

L.

Inspect the label on the bottom of the unit.  A new label must be
added to indicate that the unit is now configured for the new 
operating voltage.

M.

BEFORE CONNECTING THE POWER CORD, VERIFY THAT 
THE LINE VOLTAGE IS WITHIN THE VOLTAGE RANGE 
SPECIFIED FOR THE UNIT.  THIS RATING IS STATED ON THE 
LABEL ON THE BOTTOM OF THE UNIT.  AN IMPROPER LINE 
VOLTAGE CONNECTION MAY RESULT IN DAMAGE, 
IMPROPER FUNCTIONING, OR BOTH.  INSTALL THE CIRCUIT 
POWER CORD ACCORDING TO THE OPERATORS' 
MANUAL INSTRUCTIONS. 

2.2  PROCEDURE FOR FUSE REPLACEMENT

Steps A to F and J to N in the instructions below apply to all

models.  Step G is different for the Model 2703 than for the other
models.

(Steps A TO F are for all units)

A.

Switch the unit OFF.

B.

Remove the power plug from the AC wall outlet.

C.

Remove the power plug out of the rear of the unit.

D.

Switch the unit ON and verify that none of the front panel status
indicators are lit. Switch the unit OFF.

E.

Remove the metal screws located on the rear panel bottom left 
and bottom right.  DO NOT DISCARD THE SCREWS. Gently 
slide the PC board and rear panel out from the metal enclosure.  

F. 

Remove the nylon screws that hold the clear plastic shield in 
place. Lift off the plastic shield. DO NOT DISCARD THE SCREWS
OR THE PLASTIC SHIELD.

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(Step G is for Models 1090, 1092, 1093, 1095, 1185, 2500, 2510 and
2520.)

G.)  With a flat blade screw driver, gently pry off the fuse cover. DO

NOT DISCARD THIS COVER!  Pull out the fuse. Replace the fuse 
and reinstall the fuse cover.

(Steps H and I are for Model 2703.)

H.) With a flat blade screw driver, gently turn the movable section of 

the fuse cartridge holder counterclockwise. The spring action 
should push out the fuse.

I.)

After inserting the correct fuse in the fuse cartridge holder, re-
insert the movable section of the fuse cartridge holder with the new
fuse into the fixed section of the fuse holder.  Gently push and 
rotate clockwise while pushing until some resistance is felt and the 
cover is aligned with the fuse holder.

(Steps J to O apply to all units.)

J.) BEFORE CONNECTING THE POWER CORD, VERIFY THAT 

THE LINE VOLTAGE IS WITHIN THE VOLTAGE RANGE 
SPECIFIED FOR THE UNIT.  THIS RATING IS STATED ON THE 
LABEL ON THE BOTTOM OF THE UNIT.  AN IMPROPER LINE 
VOLTAGE CONNECTION MAY RESULT IN DAMAGE, 
IMPROPER  FUNCTIONING, OR BOTH.  INSTALL THE CIRCUIT

POWER CORD ACCORDING TO THE OPERATORS'

MANUAL INSTRUCTIONS. 

K.)  Reinstall the plastic shield so that all of the holes line up with

the stand-offs. Reinstall the nylon screws. DO NOT 
OVERTIGHTEN THE NYLON SCREWS!

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WARNING!

Replace the fuse only with one that has

the correct voltage and current rating for the voltage
setting of the unit (the proper fuse ratings is marked on
the board near the fuse holder).  Replacing the fuse with
one having an incorrect rating can result in a fire!

WARNING!

Replace the fuse only with one that has

the correct voltage and current rating for the voltage
setting of the unit (the proper fuse rating is marked on
the board near the fuse holder).  Replacing the fuse with
one having an incorrect rating can result in a fire!

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