Dan D'Agostino MasterPower 2+ Руководство пользователя - Страница 13
Просмотреть онлайн или скачать pdf Руководство пользователя для Усилитель Dan D'Agostino MasterPower 2+. Dan D'Agostino MasterPower 2+ 18 страниц. Power amplifiers
Печатать страницу13
Troubleshooting
Amplifier will not power up
If the amp produces no sound and the LED inside the front standby/power button does not light
up when you push the button, perform the following steps in order until normal operation is
restored.
1. Check to make sure the AC cord is plugged into the wall outlet.
2. Check at the back of the amplifier to make sure the 20-amp IEC connector is pushed all the
way into the jack on the back of the amplifier.
3. Unscrew the fuse connector at the back of the amplifier. Check to see if the fuse is blown. (The
conductor inside the fuse will be severed and you may see burn marks on the fuse.) Be sure to
replace the fuse with one of the proper value. Consult your dealer or D'Agostino LLC.
4. Check your household electrical box to make sure the circuit breaker has not been tripped. If it
has, flip the breaker back on.
5. If the breaker trips again, check the speaker cable connections on the amplifier and the
speakers to make sure that the terminals are not shorted, and check the entire length of the
cables to ensure there has been no damage to them.
6. If all of these steps fail to return power to the amplifier, consult your dealer for service.
LED inside the standby/power button is illuminated but you hear no sound
Follow these steps in order. If one step succeeds in restoring the sound, stop there and ignore the
other steps.
1. Check your preamp (or surround processor) and source device to make sure they are both
turned on.
2. Check the source device to make sure it is playing, i.e., if it's a record player, make sure it's
spinning and the tonearm is lowered, or if it's a CD player, make sure it's in play mode and not in
pause.
3. Make sure your preamp is not muted and that the desired source is selected.
4. Check the line-level connections between the source device and the preamp, and between the
preamp or processor and the amplifier. Reconnect any cables that may have become
disconnected.
5. Check the cables between the amplifier and the speakers to make sure they are properly
connected and that the cables have not become damaged.
6. If you have a spare pair of interconnect cables (even cheap ones will work temporarily), try
using them instead of the interconnect cables between the source device and the preamp and
between the preamp and the amplifier. If this restores sound, replace the defective cables.
7. If all of these steps fail to restore sound, consult your dealer for service.