Adjusting Volume - Märklin E 91 Series Anleitung

2.6 Adjusting the Sound
Effects Circuit
The middle section of the locomotive
structure must be removed for the
following adjustment work
(=> Page 55). The upper circuit
board of the two circuit boards is the
sound effects electronic circuit on
which you can carry out the following
adjustments.

2.6.1 Adjusting Volume

Important: This potentiometer is
located on the upper sound effects
electronic circuit board. Under no
circumstances should you confuse
this potentiometer with one of the
potentiometers on the lower digital
circuit board for adjusting the run-
ning characteristics of the loco-
motive.
Turning the potentiometer to the left:
louder
Turning the potentiometer to the right:
softer
This potentiometer has a stop at the
two end points. Never try to turn the
potentiometer with force past these
stops.
2.6.2 Coding Switches on the
Sound Effects Electronic
Circuit
The sound electronics are matched
to the particular model by means of
the 8-pin coding switch. The only
possible setting for this model is made
in the factory.
Caution: Changing the setting
can cause damage.
2
Operation
Important: These coding switches
are located on the upper electronic
circuit for sound effects. Under no
circumstances should you confuse
them with the 10 coding switches
for setting the address and the
mode of operation on the lower
digital electronic circuit.
The 8 coding switches are set at the
factory as follows:
Switch 1 2 3 4 5 6 7 8
Setting On On On On On On On On
27