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3. Service data
3.1.
3.1.1.
3.1.2.
3.2.
GAINING ACCESS TO THE PARTS
Cabinet
.
The upper and lower plates are fixed to the rear by means of 2 screws each.
Knobs
— Remove the cap from the knob.
— Unscrew the nut and remove the knob.
— When mounting the knob back, make sure that the white marks appear at the correct side.
Textplate
— Remove upper and bottom plate
— Remove all knobs
— Carefully remove the ornamental frame
— Remove pilot lamp POWER from the holder; therefore, slightly shift the textplate to the front
— Remove the textplate
REPLACING A SWITCH OF THE PUSH-BUTTON UNIT
— Straighten the 4 retaining lugs of the relevant switch as shown in Fig. 6.
'— Break the body of the relevant switch by means of a pair of pliers and remove the pieces. The soldering pins
are then accessible,
— Remove the soldering pins and clean the holes in the printed-wiring board (e.g. with a suction soldering iron).
— Solder the new switch onto the printed-wiring board.
— Bend the 4 retaining lugs back to their original positions.
Fig. 6. Replacing a push-button switch
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