Notes About The Protection Circuits; Troubleshooting - Esoteric Grandioso S1 Mode D'emploi

Notes about the protection circuits

This unit has an output short circuit protection circuit, an overheating
protection circuit and a direct current protection circuit built-in.
A protection circuit is active when the power indicator blinks blue or
alternately blue and red.
o If the power indicator blinks blue, a short might have occurred in
the +/− speaker cables. In this case, turn the unit off and check the
speaker cable connections.
o If the power indicator blinks alternately blue and red, the internal
temperature is high. Turn the unit off and wait a while for the
temperature to decrease. You can also change the installation
conditions to improve ventilation.
o If the power indicator blinks alternately blue and red for 30 sec-
onds, the unit will automatically turn itself off. After this, the
POWER button will be disabled for as long as the internal tem-
perature remains high.
If the indicator continues to blink even after likely causes have been
eliminated, contact the store where you purchased the unit.

Troubleshooting

If you experience a problem with this unit, please take a moment to
review the following information before requesting service.
If this unit still does not operate correctly, contact the retailer where
you purchased the unit.
The unit does not turn on.
e Insert the power plug into a power outlet.
The unit automatically turns off.
e This is because the automatic power saving function turned it
off. Press the POWER button on the main unit to turn it on.
Change the automatic power saving setting if necessary
(page 11).
No sound is output.
e Turn the main unit on.
e Confirm that the preamplifier is on. Before turning the pream-
plifier on, turn this unit off.
e Confirm that a signal is being output from the preamplifier.
e Check the connections between this unit, the preamplifier and
the speakers, as well as between the audio source device and
the preamplifier.
e Confirm that the correct input is selected on the preamplifier.
e Confirm that the correct input is selected on this unit.
e Raise the preamplifier volume.
The power indicator blinks blue or alternately blue and red.
e A protection circuit is active. Turn the unit off and eliminate
the cause (page 13).
e A short might have occurred with the +/− speaker cables.
Check the speaker cable connections.
The stereo sound position is irregular.
e Check that neither of the speakers has a connection cable
with +/− reversed.
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