Troubleshooting - Laboga Mr.Hector User Manual

SYMPTOM
The amplifier doesn't work,
LED diodes aren't lit, control
light isn't lit.
Smoke is coming out of the
amplifier.
The amplifier doesn't work,
but LED diodes are lit.
Only the clean channel works.
The amplifier hums even with
the Master turned down.
The amplifier produces weird
noises and crackles during
use or the sound disappears
intermittently.

TROUBLESHOOTING

RECOMMENDED INTERVENTION
Check if the main fuse isn't blown or if the power supply cord isn't
broken (use another). If it still doesn't help, contact Laboga service
personnel or any Laboga retailer.
Immediately unplug the amplifier from the mains outlet and
contact authorized Laboga service personnel or any Laboga
retailer. Don't try to repair the amplifier yourself.
Check if guitar cable is connected and if guitar the cabinet works
properly. Then, check if the guitar's volume potentiometer, Master
or other potentiometers that influence the amplifier's volume aren't
turned down all the way.
If the above-mentioned hints don't help, unplug the amplifier from
the mains outlet, wait at least 1 minute, then check if the anode
fuse is blown. If it is, exchange it for a new one, turn the amplifier
on again and observe the tubes for any unusual signs. If the fuse
is blown again after replacement, contact authorized Laboga
service or any Laboga retailer.
If the fuse isn't blown, plug the guitar cable into the return socket
at the back of the amplifier and check if you can hear the guitar:
• If you can, exchange the preamp tubes to make sure that
none of them are broken. If this doesn't help, contact
authorized Laboga service or any Laboga retailer.
• If you can't hear the guitar, contact authorized Laboga
service or any Laboga retailer.
Make sure that Lead Gain or Lead Volume isn't turned all the way
down. Otherwise, unplug the amplifier from the mains outlet, wait
for the tubes to cool down, unscrew the rear grate and exchange
the tube in the V2 position. If this doesn't help, contact authorized
Laboga service or any Laboga retailer.
Check if the outer metal cover in any of the power tubes is
glowing red (it is usually grey). If yes, immediately turn the
amplifier off and contact authorized Laboga service or any Laboga
retailer.
Check if the power cable is connected properly. Additionally, check
the quality of the speaker cable – if it is damaged and if the cable
has the proper diameter.
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