Front Panel - Sony MU-A400 Operating Instructions Manual

Front Panel.
[41] CLIP indicator
[2] HIGH TEMP indicator
[3] PROTECTION indicator
[4] OPERATION indicator
[5] ATTENUATOR knob
[6] Level meter
POWER switch and pilot lamp
Ventilation hole
[1] CLIP indicator (red)
Lights when the output wave is distorted. When the.
indicator lights frequently, the input level is too high or
there is a problem in the input channel.
[2] HIGH TEMP(temperature) indicator (red)
Lights when the temperature of the heat sink becomes
too high. Take a measure to be well ventilated.
[3] PROTECTION indicator (red)
Lights when the protection circuit is working. When you
turn on the amplifier, the indicator lights but goes off
when the unit starts to work steadily.
[4] OPERATION indicator (green)
Shows the operation mode set by the position of the
OPERATION switch on the rear panel.
STEREO
SAME OUT Lights Lights
See 2
has the same
signal as
CHANNEL 1.
(monaural)
Monaural
through BTL
[5] ATTENUATOR knob
CHANNEL 1 (MONO): Turn this knob to control the
channel 1 input level. You can control the input level
with this knob when you are using the unit as a monaural
amplifier through BTL.
CHANNEL 2: Turn this knob to control the channel 2
input level. When you set the OPERATION switch on
the rear panel to MONO, this knob does not function.
When you set the OPERATION switch on the rear panel to
SAME OUT, CHANNEL 1 and CHANNEL 2 are connected
(stacking connection). You can control the channel 1 input level
with the ATTENUATOR knob on the CHANNEL 1 side, and the
channel 2 input level with the ATTENUATOR knob on the
CHANNEL 2 side.
[6] Level meter
The 10-point LED level meter shows OdB at 8 ohms
load, 100 W output.
POWER switch and pilot lamp (green)
'Press this switch to tum on the amplifier. The pilot lamp
lights when the unit is turned on.