Bosch MOT 250 Instrucciones De Manejo página 83

5.1.3 Multi-circuit ignition system with single-spark ignition coils
(EFS)
F1: Changeover of measuring mode between secondary
oscillogram (pick-off of measured values with secondary
sensor) and primary oscillogram (pick-off of measured
values with green clips).
F2: Changeover between parade representation (the „parade"
corresponds to the representation of the complete ignition
curve or ignition circuit representation) and individual
representation of each cylinder.
F3: Call of subprogram: „Picture adjustment" to change the
X-deflection (time axis), the Y-amplification and the picture
position (picture displacement upward or downward).
See Section 5.4.1.
Only activated when the individual picture representation is
selected:
F4: Call of subprogram: To set the pretrigger to displace the
picture or the start of the picture on the X-axis. See
Section 5.4.2.
F5/6: To select the individual cylinders according to firing order
for individual picture representation.
Only activated when parade representation is selected:
F5/6: To select whether the primary signal is picked off all
primary inputs or just from one ignition circuit each. The
representation on the oscilloscope in the X-deflection
occurs in the case of 4-stroke engines in 720° crankshaft.
83