ALLNIC AUDIO A-2000 MK3 Manuel du propriétaire - Page 9
Parcourez en ligne ou téléchargez le pdf Manuel du propriétaire pour {nom_de_la_catégorie} ALLNIC AUDIO A-2000 MK3. ALLNIC AUDIO A-2000 MK3 14 pages. Kt170 push-pull stereo power amplifier
If a meter's needle drops to the very left limit of the meter's face during operation, this indicates a failure of the
related KT170 tube. You must turn off the A-2000 MK3 and replace both the fuse (0.5A, 250V, 20mm slow-blow) for
that tube and the KT170 itself. To replace a fuse, using a screwdriver, simply turn the top of the fuse cap counter-
clockwise. It will spring out holding the fuse. Replace the fuse, push the fuse cap down and turn it clockwise; it will
lock itself. If you have any questions about doing this, please contact Your Allnic dealer for assistance.
If the AC mains fuse, located at the IEC input (See Figure 4), has failed, it can be replaced with the spare fuse
provided in the tray in the IEC mount (See the Specifications section of this manual for the appropriate fuse). Again,
if you have any questions about doing this, please contact Your Allnic dealer for assistance.
Of course, you will have to adjust the bias back to center between the two parallel lines of the meter for a tube
when it is replaced. When replacing a KT170, first turn the bias screw counter-clockwise slightly to reduce current,
in case the bias is set too high for the new tube (since the old tube may have required additional bias). Bring the
bias up gradually to the center between the two lines on the meter.
All consequences of changing or attempting to change tubes are borne by the user unless by express agreement
between the owner and an authorized Allnic representative. Allnic Audio and its authorized representatives are not
liable in any way whatsoever for any injury or loss incurred by the user or for damage to the A-2000 MK3, any of its
parts, or tubes or replacement tubes resulting from the user changing or attempting to change tubes.
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