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P a g e
CARE AND MAINTENANCE
Very little care and feeding is required to keep the LS-1 in tip top condition. If the unit gets
finger printed or dirty, first wipe it off with a soft dry cloth. If the dirt is more stubborn, use a
cloth dampened with a little water. Never get moisture inside the unit. Take particular care
when cleaning near the ventilating holes located at the back corner of the unit. For the bright
metalwork, use a VERY soft, DRY polishing cloth and a buffing action. When you are
changing tubes, use your fingers for best grip but wipe the tubes off with a soft cotton towel
afterwards. This will extend tube life.
Battery replacement couldn’t be easier. When the time comes, some 12 years down the
road, follow this procedure to change the batteries”
Find a suitable flat, clean surface that is sufficiently large and strong enough to hold
the LS-1
Lay a soft, clean towel or other cloth on this surface to protect the finish of the LS-1
Using a 2 mm Allen wrench, remove the upper rows of bright metal Allen screws
which are located on the left and right side of the unit.
Carefully set all screws aside so as not to lose them
Remove the top cover by pulling up firmly and set it aside.
You will see a row of 3 batteries on both the left and right side of the unit flanking the
central circuit board. You will be looking at the BOTTOM of the batteries as they are
installed with the terminals down …TOWARDS the main circuit board.
Remove all batteries by pulling them straight up and set them aside (and retain for
proper disposal)
Prepare the new batteries for installation by checking them for damage, proper
specification and by removing terminal protectors if they are installed (small plastic
sleeves over the positive and negative terminal on the battery).
Install the new batteries by replacing them where the old batteries were with the
terminals down and towards the center where the circuit board is.
While you are replacing the main power batteries you should also replace the bias
batteries which can be found immediately next to the power batteries on the main
board. These are AA type rechargeable batteries and should be installed noting
correct orientation of +/- terminals.
Reverse the above procedure to secure the top panel and you are finished.
