138 Diagnosis procedure
Set the machine to deliver increasing current values and, with a multimeter set to Vdc, measure between the
following points of board 15.14.254 :
CN3/7 - TP3 = from -100 mVdc
to -2.2 Vdc
(for increasing values set via potentiometer)
yes
: go on ; no : replace the front panel FP106
(level 1 and 2)
Stage 5) , 6) and 7): Do not perform these tests (they apply only to G 240) .
Stage 8) : Select the external reference from the front panel.
Insert the remote control (RC12 or RC16 or equivalent circuit, see attached diagram) in the connector on the front panel.
Checks :
Set various current values and check that they are shown on the display of the front panel FP106.
yes
: go on ; no : replace front panel FP106
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