Pioneer A-70-K - Manual (Page 14)

05 Additional information
14
En
Chapter 5:
Additional information
Troubleshooting
Incorrect operations are often mistaken for trouble and malfunctions. If you think that there is something wrong with
this component, check the points below. Sometimes the trouble may lie in another component. Investigate the other
components and electrical appliances being used. If the trouble cannot be rectified even after exercising the checks
listed below, ask your nearest Pioneer authorized service center or your dealer to carry out repair work.
• If the unit does not operate normally due to external effects such as static electricity disconnect the power plug
from the outlet and insert again to return to normal operating conditions.
Problem Remedy
The power does not turn on. • Is the power plug disconnected from the power outlet? Connect the power plug
correctly to its outlet (page 7).
•Is the power cord disconnected from the AC IN connector? Connect the power cord
correctly (page 7).
Power turns off. •Is the Auto Power Down function turned ON? If you do not want the power to turn off
automatically, disable the Auto Power Down function (page 13).
During playback, sound stops, and
the STANDBY/APD indicator flashes
red at about 0.5 second intervals.
•The protection circuit has been activated. This condition will result if a very low-
frequency sound is played at a high sound volume level.
- Turn the power OFF and wait for at least one minute, then turn the power ON again;
play the music at a lower sound volume level.
- When power is turned ON again, if the STANDBY/APD indicator flashes red at
irregular intervals, the unit’s circuitry may be damaged. Disconnect the power cord
and consult your dealer or nearest Pioneer service station.
During playback, sound stops, and
the STANDBY/APD indicator flashes
red at about 1 second intervals.
•The unit’s internal temperature has risen and the safety circuit has operated.
- Turn power OFF and wait for a minute or more, allowing the unit’s temperature to
cool before turning the power ON again.
- Install the unit in a location with better ventilation.
- Confirm that the unit is installed correctly; if the unit is turned on again without
being allowed to cool, the same symptoms may appear (page 4).
During playback, sound stops, and
the STANDBY/APD indicator flashes
red at about 2 second intervals.
•Are you using speakers with impedance values not supported by this unit? Confirm
the speaker’s nominal impedance value (page 6).
•Are any speaker cables loose from the SPEAKERS terminals and touching other
wires or the surface of the rear panel? Disconnect the power cord and reconnect the
speaker cables correctly (page 6).
During playback, sound stops, and
the STANDBY/APD indicator flashes
red at about 3 second intervals.
•The protection circuit has been activated. This condition will result if a very high-
frequency sound is played at a high sound volume level.
- Lower the sound volume and try playing again.
- If the same symptom appears when the power is turned OFF then ON again, the
unit’s circuitry may be damaged. Disconnect the power cord and consult your
dealer or nearest Pioneer service station.
When power is turned on, the
STANDBY/APD
indicator flashes at
irregular intervals.
•The unit’s circuitry is damaged. Disconnect the power cord and consult your dealer
or nearest
Pioneer authorized service center .
Cleaning the unit
• Use a polishing cloth or dry cloth to wipe off dust
and dirt.
• When the surface is dirty, wipe with a soft cloth
dipped in some neutral cleanser diluted five or six
times with water, and wrung out well, and then
wipe again with a dry cloth. Do not use furniture
wax or cleansers.
• Never use thinners, benzine, insecticide sprays or
other chemicals on or near this unit, since these
will corrode the surface.
No sound is output when a function is
selected.
•A connection cable is disconnected or connected improperly. Check your
connections (page 5).
•Connectors or pin plugs on a cable are dirty. Wipe off any dirt from connectors and
pin plugs.
•Confirm that the unit’s input selector is set to the desired playback component. Set
selector correctly (page 11).
•Press MUTE on the remote control to turn muting off (page 10).
No sound from one speaker. •Are the connection cables or speaker cables disconnected on one side? Reconnect
securely (page 5).
Can’t operate the remote
control.
•Replace the battery (page 4).
•Operate within 7 m, 30° of the remote sensor on the front panel (page 4).
•Remove the obstacle or operate from another position.
•Avoid exposing the remote sensor on the front panel to direct light.
•Is the control cord for one component connected improperly? Confirm correct
connections (page 6).
Can’t change input source. •Check whether POWER AMP DIRECT function is ON. If so, press the front panel’s
POWER AMP DIRECT
button to turn the function OFF (page 11).
No sound is heard when a linear PCM
signal with frequency of 96 kHz or
more is input to the DIGITAL IN
COAXIAL
terminal.
•Sound may not be output properly depending on the digital coaxial cable used; try
replacing the cable (sold separately) with another.
When the DIGITAL IN USB port is
connected to a computer via USB
cable, audio files on the computer
cannot be played.
•Has the proper device driver been installed on the computer? When using a USB
cable to connect the unit's
DIGITAL IN USB port to a computer in order to play audio
files on the computer, the proper device driver must be downloaded from the Pioneer
website and installed on your computer. Consult the Pioneer website for instructions
on installing the driver.
No sound is produced when
attempting to play files on a computer.
•Are volume settings correct for the OS and application program? Raise the volume
settings as required.
•Is the OS audio output set to MUTE? Cancel the MUTE setting.
•Are multiple applications running simultaneously? Try closing applications that are
not in use.
•Has the audio output been set properly within the OS or application used? For audio
device select "Pioneer USB Audio Device".
Problem Remedy
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