ASR Audio Systems Friedrich Schaefer, D- 35 745 Herborn +49 (27 72) 42 905
The main unit is not switching into “Batt” mode
After switching the main unit to “Batt” the blue Batt ON bar should light up in the front plate of
the battery unit. The
blue leds
in the Basis main unit should light up and shows that the Basis is
supplied
out of the
battery
. If that does not occur, and the yellow Charge Bar is shining up instead
then the batteries are empty and should be charged.
After
recharging
the battery unit switches
automatically
into battery mode.
If the charge led is not shining please check if the AC cord is plugged in properly.
The Battery PSU is switching between Charge and Bat On
If the unit is switching between charging and operation, ( between the yellow
Charge
and blue
Batt On
Led ) please control the two
battery fuses
on the PCB board and the connecting cables
to the batteries, or the
batteries
have reached the end of their
lifetime
and need to be exchanged.
Hum
In principle the ASR Basis Exclusive should not be placed near power supplies, AM/FM-receivers,
cordless phones, computers etc.. Due to its unique design principe the ASR Basis itself can not
produce any hum. Hum can also occur because of other reasons:
a)
Ground loop caused by a improver ground connection,
Action :
try different ground
connections in different manners that may interrupt the hum-chain.
b)
Electromagnetic fields.
Action :
Remove power supplies from the surroundings,
or try to put the record player as well as the Basis Exclusive at another places.
b)
Connecting the tone arm cable with an unbalanced cable to the ASR Basis Exclusive,
although the ASR Basis Exclusive is set to operate in balanced mode
Action:
switch the ASR Basis Exclusive to unbalanced mode (see 3.1)
Noise
If noise occurs while playing an LP, you should lower the gain.
The noise at the cartridge’s inner resistance of a very low output MC cartridge might be already
higher, than the noise of the built-in input gain stage of the ASR Basis Exclusive!
Different channel volumes
Please check if all DIP switches are set the same for both channels and are positioned correct.
Radio Interferences
Some times the connecting Cables to the turntable have the exact length of an FM antenna.
This may cause distortion in the playback. Please try Dip switches No 11 for a higher input
capacity, use a lower input resistance and nevertheless please use the balanced connection.
That also results in a much better sound !
High End Phono-Pre-Amplifier ASR Basis Exclusive version 2010 Page 14
