- ページ 9

アンプ ALLNIC AUDIO A-2000 MK3のPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。ALLNIC AUDIO A-2000 MK3 14 ページ。 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.