JVC KD-LX30 Instructions Manual page 28

To adjust the line input level
Adjust the line input level properly when an external component is connected to the LINE IN
plugs. When shipped from the factory, the line input level is set at level 00.
If the input level of the connected component is not high enough, increase the input level
properly. Without adjusting the line input level, you may be surprised at a loud sound when
you change from the external component to another source.
To make the front panel look flat (hiding the control panel)
When operating the receiver using the remote control, you can hide the control panel to make
the front panel look flat. When shipped from the factory, "FLAT OFF" is selected.
• FLAT ON: The control panel will not come out when you turn on the unit.
To use the control panel, press 4
no operation is done for about 10 seconds, it automatically goes back into the
receiver.
• FLAT OFF: You can use the control panel normally.
Note:
When "FLAT ON" is selected, you can eject a CD by holding 4
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so that the control panel comes out. If
.