Troubleshooting - Bogner Alchemist 212 User Manual

Alchemist User Manual
Fuses
To check the fuses, use an Ohmmeter to make sure they're blown because sometimes you can't see
if they are. Radio Shack is one source that carries both types of fuses.
• MAINS FUSE – This is a 5x20mm Slow Blow type. 100-120 volt operation requires a 2.5A
fuse. 220-240 volt operation requires a 1.25A fuse. If this fuse blows it could be just a voltage
peak from your power outlet. Put a new one in and see what happens. If it blows again give us
a call. To release the fuse holder you need to push the top and bottom latch with your finger
nails towards each other and pull the insert out. If you can't get it out this way, use a little
screw driver and pull first one, then the other latch, the insert snaps out and you be able to
pull it out.
• HT FUSE –This is a "3AG Slow Blow" screw-cap type and should be .5A on all models. The
HT fuse usually blows if your power amp tubes are bad to protect the circuit from getting
damaged.

Troubleshooting

Make sure your read and understand the safety instructions!! Repairs should be done only by
knowledgeable technicians!! Always make sure your cables, guitars, effects and extension cabinets
are working and hooked up correctly. If you think something is wrong with your amp, play straight into
the amp with nothing else hooked up other than a guitar, and try different cables. That way you make
sure it is the amp. If you own a combo, unplug the internal speaker and hook up an external speaker
cabinet to see if the problem is with the speaker or cable. For noise, check the appropriate preamp
tubes (refer to Section 3). The great majority of all sound and noise problems come from preamp
tube failure.
If you have unanswered questions, please check out our web page: www.bogneramplification.com
There you have it! It's all up to you now. Be creative and push your musical imagination....
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