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P a g e
CONTROL/DISPLAY –The Front Panel
The front panel of the LS-1 is simple and all business. It is compromised of only 3 discreet
elements; the display, the two control buttons, and the 4 tube sockets. Refer to the picture in
the addendum for a close up view of the front panel.
Let’s deal with tube sockets first. The tubes are pre-installed. You should check them to insure
that they are firmly seated in the sockets. Do this by holding the end of each tube between
your thumb and forefinger and pushing the tube straight back into the unit. The display has
all the important information – and nothing else. The blue LED display indicates LEVEL
(volume) in large numbers – from 1 (lowest) to 61 (maximum) in 1dB increments. When first
turned on, the display will show blinking green lights indicating a soft start period. Then the
green lights stop blinking and only “- - “ remain, this indicates that the LS-1 is in MUTE mode
and ready to go.. Numbers will replace the mute dashes as the volume is adjusted. Above
the LEVEL in the display, is an area showing a series of lights indicating that BALANCE has
been adjusted from L/R parity. When no indicator lights are lit the system is at equal L/R
level. When lights are lit to the left or the right, a difference in channel balance is indicated.
The lights show green/ orange/red respectively to indicate the relative amount that the
balance has been adjusted. See addendum for picture.
The control buttons are equally simple. There are two, with up and down triangles associated
with each. The right button has an up triangle designation. This button has multiple
functions. With the unit off, press and hold it and the unit turns on in mute mode. Press this
button again and the level will increase with the display showing the change in level. The right
button has a down triangle designator. This button will lower the level and at the very bottom
of the level range, the unit will go into mute mode. If you depress and hold the right button
down when in mute, the unit will turn off. These functions as well as additional functions can
be accessed via the remote control. Some functions, such as BALANCE AND INPUT
SELECTION can only be accessed using the remote.
Please note that the unit goes through a short timer controlled preconditioning cycle when
first turned on, during which time the volume control is locked out. The LS-1 will
automatically turn on in the MUTE mode after about 30 seconds.
START UP
As you learned above, the unit can be turned on with the front panel “triangle up” button.
The remote can also turn the unit on. Once switched on, the unit will go through a several
minute warm up period – indicated by blinking orange and red led’s at the top of the display.
When the blinking stops you are ready to play.
