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AHLBORN Classical Organs
English Page 3
PRAELUDIUM III - PRAELUDIUM IV/E - User's Manual
INTRODUCTION
AHLBORN CLASSICAL ORGANS
After the instrument is turned off, it will save the decompressed items relative to the sound library in memory thus avoiding any
waiting time for decompressing the organ next time it is turned on. This is possible because the instrument is equipped with a
backed memory which, once discharged, requires about three hours to recharge (the battery will last about five days). To update
the sound library it is necessary to force the decompressing and subsequent memory charge by pressing the EXIT button of the
PROGRAMMING SECTION while turning on the organ.
Control tabs carry the name of specific place stops. Each tab comprises a number of "Alternative stops" which can be freely se
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lected by the organist. Three specific tabs, named REG. ACCESS. G.O./REC./PED. control special "Accessory stops" which can be
referred to any section of the organ. Detailed instructions are supplied on pages 16 -17 of this user's manual. The tabs are of the
light-up type: if the lower half of the tab is pressed, the stop will be activated, lighting up the tablet; if the upper part of the tab is
pressed, the corresponding stop will be deactivated and the light on the tab will turn off. Such a system permits a clear visualisation
of the stops drawn and correct use of the combination action. Tabs are numbered progressively above their name. The organist
may use this general number to quickly write down the selection chosen. The name of the stop is written on the central part of the
tab together with the number of "ranks" which form it. The bottom half of the tab shows the conventional "footage" of the stop.In
each section, stops are displayed from the lowest to the highest footage. When two stops have the same pitch, they appear in the
order given by the sound "family" to which they belong: Principals, Flutes and Bourdons, Strings, Mixtures, Undulating stops and
Reeds. This last group marked by red tabs is placed on the right-hand side of each section before the Couplers.
The first time the instrument is turned on, a two minute decompressing phase for the sound library is required in order to utilize its
internal memory. The following indication will appear on the display, and it will disappear automatically when the decompression
is finished:
Couplers I-Pedal and II-Pedal allow those stops which have been drawn on the manuals to play. Coupler I-II adds the stops drawn on
the Swell to the Great. The corresponding controls appear as TABS on the extreme right of the relative section. The thumb pistons
are "reversible": pressing once activates the couplers; pressing again, deactivates them. It is also possible to deactivate the couplers
manually when they have been activated with the thumb pistons and vice versa.
SWITCHING ON
The console of these instruments maintains the traditional requirements of pipe organs.
STOPS
COUPLERS
Attention! This procedure causes the deletion of all the editing executed in Voicing and Finishing section of the instrument. Please
take always care to save your data in the floppy disk driver.
Organ Reset Procedure
It is possibile to restore the organ original factory setting (Voicing, Finishing), using the following procedure:
• Switch on the organ keeping pressed the ENTER button of the PROGRAMMING SECTION for the entire initial
phase of bootstrap (Operating System Loading – more or less 5 seconds).
