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How to Operate the MHA150
Power On and Off
The Red LED beside the STANDBY/ON Push-button
lights to indicate the MHA150 is in Standby mode.
To switch ON the MHA150, press the STANDBY/ON
Push-button on the Front Panel or press the
Push-button on the Remote Control. The MHA150
will go through a brief startup initialization, with the
Front Panel Display indicating the last used input and
volume setting. This is followed by the volume setting
indication starting at zero and then increasing to the
last used volume setting. Refer to figures 50, 51 and
52. To switch OFF the MHA150, press the STANDBY/
ON Push-button on the Front Panel or the OFF Push-
button on the Remote Control.
UNBAL
NORM 8O - 40O
Figure 51
Note: For an explanation of the Remote Control
Push-button functions, refer to pages 14 and 15.
Source Selection
Rotate the INPUT Control to select the desired input
or press the appropriate push-button on the Remote
Control. Refer to figures 50 and 52.
Volume Control
(Power)
Rotate the Front Panel VOLUME Control or use the
Up (+) or Down (-) Push-buttons on the Remote
Control for the desired listening level. Refer to figures
50 and 52.
Trim Functions Introduction
The MHA150 has various Trim Selections with Ad-
justments. The Trim Functions include Bass Boost,
Balance, Level (Input Trim), Mono/Stereo, Meter
Backlight, Display (Information) and Digital Audio
(Display Information). The Bass Boost, Balance, Level
20%
(Input Trim), Mono/Stereo, Trim Settings are stored
in memory independently for each Input Selected; the
other Trim Settings are the same for all inputs.
The selection and adjustment of all Trim Functions
may be performed by first momentarily pressing the
Front Panel INPUT Control. Then rotate the INPUT
Control to select the desired Trim Function. This is
followed by rotating the OUTPUT Control to make a
Figure 50
How to Operate the MHA150
change/adjustment in the
Trim Setting. To verify
a TRIM Setting without
changing it, press the
INPUT Control and then
Rotate the INPUT Con-
trol to select the desired
Trim Function. After ap-
proximately 5 seconds the
Display returns to indicate
the Input Selection and
Volume Level.
BASS BOOST
The Intensity of the Low
Frequencies in the music
can be increased by us-
ing the Bass Boost Trim
Function. To make an adjustment perform the follow-
ing:
1. Momentarily press the Front Panel INPUT Control
to enter the TRIM Mode. Then rotate the INPUT
Control until "BASS BOOST, 0dB" appears on
the Front Panel Display. Refer to figure 53.
BASS BOOST
0dB
Figure 53
2. Rotate the OUTPUT Control to change the Bass
Boost, the range of adjustment is from 0dB to
+12.5 dB in 2.5 dB steps. Refer to figure 54.
BASS BOOST
+2.5dB
Figure 54
Figure 52
21
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