4.25 - ANALOG TO DIGITAL CONVERTER TEST
. .
~.'
The ADC test will verify operation
of
some of the Front Panel
Sliders
as well as the Foot Pedals and Mod Levers. The LCD display
will
prompt for a
YES
or
NO
switch response as follows:
AID CONVERTER TEST
EXT PED
1?
Press
YES
The LCD will show the AID reading
in
HEX. for External Pedal 1
the approximate readings
should be:
o 0 PEDAL NOT PLUGGED INTO REAR PANEL
JACK
7E
PEDAL
UP
o B PEDAL DOWN
Press
SELECT
to proceed
to
the next ADC test.
FEEDBACK B? Press
YES
The ADC reading should be approximately
7D.
Press
SELECT
to
proceed
to
the next ADC test.
FEEDBACK A?
Press YES
The ADC reading should be approximately
7F.
Press
SELECT
to
proceed
to
the next ADC test.
MASTER TUNE? Press YES
The ADC reading should be approximately:
14 SLIDER IN LEFTMOST POSITION
8 1 SLIDER
IN
CENTER POSITION
ED
SLIDER IN RIGHTMOST POSITION
KurzwelJ 250 Service Manual, Chapter 4
4-36
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