Troubleshooting - Akai AM-59 Operator's Manual

Troubleshooting
Should you have any problems during the operation of this amplifier, please check that all the controls are set to their proper positions
and that all the connections are correct (refer to this manual for the proper procedures). If a problem persists refer to the advice below.
If the problem cannot be corrected with the instructions below, write down the model and serial numbers and all pertinent data regard-
ing warranty coverage, as well as a clear description of the problem and contact your nearest AKAI service centre.
BU TI pt He UO
Check point _
No power. e Amplifier connections are not correct.
No sound. Check the amplifier connections.
¢ SPEAKERS switch is set to the wrong position.
Set the switch to the correct position.
¢ VOLUME control is set to 0.
Set the VOLUME coniroi to the desired positio
e The correct input selector button is not
Press the correct button.
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Wait a few seconds.
No sound after the power is turned on (even after
playback volume adjustment).
VOLUME setting indicates a higher volume level
than can be heard.
Humming noise is heard during record playback.
¢ The protection system is engaged.
Stop playback as soon as possible, turn off the power, and then
check the speaker cord connections.
Connect a speaker system with an impedance of over 8 ohms or set
the SPEAKERS switch to OFF.
e@ The MUTING switch is set to ON .= .
Set the switch to OFF =.
e Theturntable's ground wire (if included) is not connected or connec-
tion cords are not securely connected.
Connect the ground wire to the yy terminal and make sure that the
connection cords are connected securely.
f
Bass or stereo sound is not reproduced fully. © Speakers are not connected correctly.
Check the polarity of the connections.
Deck will not play back. The correct input selector button is not pressed.
Press the correct button.
Digital source playback can not be performed. ¢ Connections are not correct or the digital terminals are not used for
connection.
Check the connections and change them if necessary.
Connections should be made with digital connection cords available
from your audio dealer.
e The correct input selector button (DIGITAL 1, 2 or 3) has not been
pressed.
e Press the appropriate button.
BASS, TREBLE, BALANCE or MODE controis are e The SOURCE DIRECT switch is set to DIRECT.
not effective. Set it to OFF (SUBSONIC).
Playback is monaural. e The MODE button is set to MONO =.
ee Set it to STEREO m.
The woofer's diaphragm vibrates slowly during play- e A warped record is being played back.
back. Set the SOURCE DIRECT switch to the OFF (SUBSONIC) position
to remove subsonic noise.
Decks are not properly connected.
Check the connections.
e The REC OUT SELECTOR switch is not set to the appropriate posi-
tion.
Set it to the proper position.
Recording can not be performed.
Digital recording can not be performed. Connections are not proper or the digital input and output terminals.
are not being used.
Check the connections and change them if necessary.
Connections should be made with digital connection cords available
from your audio dealer.
The DAT deck is not in the digital recording mode.
Set the deck to the digital recording mode.
The digital source is protected from recording.
Play back the source in the analog mode for recording.
The DIGITAL 1, 2 or 3 input selector button has not been pressed.
Press the appropriate button.
The REC OUT SELECTOR switch is not set to the appropriate posi-
tion.
Set the switch to the appropriate position.
Tape dubbing can not be performed.