page 16
Front of B600
Ajustment of brightness and contrast
Calibrating and adjustment on your B600
Ajustment of brightness and contrast
of B600 display.
When it needs adjustment?
Depending on where you put the B600 and
from which angle you are looking in the
display it may be necessary to adjust the
contrast .
How to adjust?
BOTTOM VIEW
How to adjust?
Switch on the B600,.
Turn the potentiometer in either c.w. or c.c.w.
direction while you watch the changement of
the display brightness and contrast.
Amplifier for the signal of the microphone
When it needs adjustment?
If you have the impression that the watch signal is too
Rear of B600
If you have the impression that the watch signal is too
weak and the grafic gives problems.
How to adjust?
Turn the Knob ( Level) in front of the B600 in the
position one o’clock ( point to point )
Lay a good working watch correctly on the microphone.
On the B600 press the Freeze button and watch the
Oscilloscope signal of the watch noise.
Turn the Pot meter on the bottom of the B600
Turn the Pot meter on the bottom of the B600
slightly in one direction.
The oscilloscope signal should touch
the upper and lower line. O.K. that’s all
Adjustment of internal quarz frequency
The calibration is reserved for service only
With this potentiometer the B600 can be
calibrated .
This means , the internal quarz frequency
Operating - Manual B 600 M / Q
will be adjusted.
To calibrate the instrument correctly ,you
neet a master signal , e.g. DCF77.
The calibration is reserved for service only
