Table des Matières
Publicité
120
K0320 Issue No. 1
Service, repair and parts
Fault finding procedures
Opening and closing the
calibrator housing
Remove the batteries and disconnect
the unit from other equipment. Take
the four T/C wire screws out and
release all visible Phillips screws at
the back and inside the battery
compartment. Lift gently the
housing upper half off and put it away.
Disconnect the power cable from the
board and the cable to the rotatable
unit. The electronic board assembly
and the rotatable unit can now be
taken out of the lower half of the
housing.
To open the rotatable unit release the
two screws at the same half on each
side.
To close the calibrator housing in
reverse order the following must be
considered;
1. Place the rotatable unit back in the
click mechanism slots as found before.
2. Make sure that the cable between base
unit and rotatable unit is correctly
routed as indicated.
3. Put the three printed circuit board
spacers in place. Left-hand and right-
hand spacers have brass wire guide
tubes; make sure they fit into the mV
terminals correctly.
4. Check the "battery type" selector switch
position before turning the unit on.
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