Troubleshooting - Komet Songwriter 30 Owner's Manual

You may not notice a sonic difference in the "down" position where the amp is slightly
owner's to
bright, and even in the "up" position. This has led some Songwriter 
(most bright)
believe that the bright switch is not functioning correctly. We can assure you that this feature
is designed to function this way. It was our decision not to go overboard and add too much
brightness with this switch. Our goal is to keep this amplifier as close to the original circuit
as possible. The bright switch, when engaged in the center or " " position, is as the original
off
Songwriter circuit was designed.


TROUBLESHOOTING

When troubleshooting a problem, we recommend that you remove all effects pedals and only
go direct with your guitar and guitar cable into the amplifier. Also, remove any attenuation
device from amp to speaker cabinet. This way you can easily and quickly rule out or discover
if your amplifier is the source of the problem.
Pilot Light Not On
- check to see if the amplifier's AC cable is plugged in at wall and at the IEC connection at
the back of the amp.
- make sure the AC connection is secure and the IEC input is pushed in all the way.
- check the type 47 pilot light bulb. It may be burned out.
- check the 3 amp " " AC supply " " fuse to see if it is blown. Should your fuse
slow blow Mains
be blown, replace the fuse with a 3 amp " " .
slow blow (a.k.a. MDL 3A 250V)
Mains Fuse "blowing"
- unplug amplifier from the wall AC. Remove the power tubes.
- install a new 3 amp " " fuse .
slow blow (2 Amp 240V)
- plug into the wall AC and turn the amp on . Should the
(with no power tubes in the amplifier)
" " fuse continues to blow , then there is a problem
Mains (with no power tubes in the amplifier)
and your amplifier will need to be serviced. If the fuse does not blow, and the amp lights up,
turn amp off, and install a new set of matched EL84 power tubes. Turn the amp back on. If
the fuse does not blow, play the amp and monitor.
- if the high voltage H.T. fuse blows, it is most likely a defective power tube, or your bias
setting / current draw may be too high.
(continued)
Copyright 1999-2017, KometAmplification. Group, L.L.C. May not be reproduced in any form without express written consent from KometAmplification.