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アンプ Jam D1200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。Jam D1200 6 ページ。 Professional power amplifier
2. Operating Instructions
2-1 Start-up procedure.
1. Check all inputs and outputs are connected correctly as per
the above instructions, paying particular attention to the bi-
amp configuration offered on the amplifier.
2. Check out if local power system is correct. 220-250V AC with
protective ground/earth
3.
Make sure the Power Switch is on OFF position. Turn down
the volumes to the minimum.
4. Power on the Audio source, and then power on the Amplifier.
Once the startup procedure is complete, turn the Volume
Control Knobs clockwise until the desired volume is reached.
2-2 Turn off procedure.
5. Turn the volume control knobs counterclockwise to the
minimum setting
6. Power off the amplifier
7. Disconnect the mains supply from the electrical outlet if not
in use.
2-3 Troubleshooting:
Indicator(s)
Possible cause
1. No power – check there is power,
and the power light is on.
2. A fuse on the internal board has
activated – contact your dealer for
All the lines are
advice.
connected, but no
3. Volume is not turned on
sound output
4. No input signal
5. Protection has been activated –
wait 3 seconds for protection circuit
to deactivae
1. Short-circuit load or damaged
2. Supply voltage is not stable, too
Amplifier powers on, but
low or too high.
with warning lights or
3. Heavy load exceeding maximum
protection is activated
amp power for too long.
1. The temperature is too high, the
No sound output when
device is under protection.
in normal use.
2. Poor electrical connection