Owner manual

r Assemble the LCD into the housing with the parts
shown in Figure F. Note the top of the house is
curved.
r Wipe off zebra edges with a lint-free cloth and
then insert the zebra into the top slot of the
housing.
r The LCD must be put in with the notch in the
direction shown in Figure F. Peel off the clear
protective film on top of the LCD (see Figure F),
then place the LCD into the housing.
r Place the display cover on top of the housing and
press down to snap into place.
r Place the LCD housing on top of the PC board as
shown.
Testing Procedure
The LCD housing will not be screwed to the PC
board for this test. Align the LCD housing holes with
those in the PC Board and hold in place. You can
also use a rubber band to hold the housing. You will
need to apply pressure so the zebra makes contact
to the copper pads.
1. Place the top label over the knob. This will assist
in obtaining the correct knob position.
2. Connect the 9V battery to the battery snap
3. Turn the meter on by pressing the power switch
(down position).
4. Align the LCD housing holes with those in the PC
Board and hold in place. You can also use a
rubber band to hold the housing. You will need to
apply pressure so the zebra makes contact to the
copper pads.
5. Set the selector switch to the 200Ω position. The
first decimal point should light and show a 200
under it. Select the 20kΩ position and the second
decimal points lights with a 20 under it. Select the
2kΩ position and the second decimal points lights
with a 2 under it. Adjust the selector to other
ranges and check that correct decimal point
lights. The LCD may display random numbers.
If the tests are not working, check for cold solder
joints, part values and if the LCD is assembled
correctly. DO NOT PROCEED TO SECTION B
WITHOUT INSTRUCTOR’S APPROVAL.
-12-
ASSEMBLE THE LCD
Figure G
Clear Protective Film
Tape
LCD Cover
LCD
Notch
Zebra
PC Board
Battery
Range Selector
Knob Assembly
Do not touch edge
LCD Housing
-23-
Top Case
Input Socket
Sleeves
Red Power Cap
PC Board
Bottom Case
Shield Label
Figure T
Black
Feed the
battery snap
through this
opening.
Battery Snap
Figure F
Round Edge
Square Edge