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6
Maintenance
6.1 Changing strings
Proceed as follows to change the
strings:
6.2 Battery change
Strings are subject to a natural aging process, which is also affected by the frequency
of use of the instrument. Changing the strings is recommended if the sound quality
of the instrument decreases audibly. Always replace the complete set of strings
(strings of 4/4 length) and always go string by string. In this way you avoid a strong
temporary bending of the neck due to reduced string tension. The bridge also
remains in the correct position and does not have to be readjusted.
1.
For example, loosen the run-down E string from the capstan of the machine
head and from the tailpiece.
2.
Thread the new E string into the tailpiece, pull it over the bridge into the cap‐
stan bore of the machine head.
3.
Hook the string end to the capstan and tighten the string tension slowly. At the
first windings, pay particular attention that the string is taut to the mechanics.
4.
Make sure that the string is running correctly through the grooves of bridge
and nut at the upper end of the neck.
5.
Slowly increase the string tension until the correct pitch is reached. Use a tuner
or a pitch pipe for reference.
6.
Proceed in the same way with the A, D and G strings and then tune all strings
again successively to the correct pitch. Note that the string tension will drop a
little and the instrument needs to be retuned several times until the strings
stay in tune.
Replace the inserted battery if necessary (weak output signal) or at regular intervals.
Open the battery compartment cover on the back of the instrument.
Clamp the power cable with the correct polarity to the battery. Insert the battery into
the battery compartment and close the battery compartment cover. It must audibly
click into position.
NOTICE!
Risk of fire due to incorrect polarity
Incorrectly inserted batteries may destroy the device or the batteries.
Ensure that proper polarity is observed when inserting batteries.
Maintenance
HBV 870
13
Electric Violin
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