ModWright Instruments LS 100 Owner's Manual - Cautions:
2
CAUTIONS:
When removing the lid screws ONLY remove the
screws on the side panels and the screws on the top
panel at the front and rear edge. The screws in the
middle of the top cover are attached to nuts below and
do not secure the lid in place. If these are removed,
lock nuts could fall inside the pre-amp and cause
damage to the unit.
Any source input connected to HT/BP inputs, will feed RCA Main outputs with NO VOLUME
ATTEUNATION, when HT/BP function is selected. It is important to ONLY use this input
for signal from the front channels of a Home Theater Pre/Processor or other source WITH
built in volume control. The preamp must be powered on in order for HT/BP to operate. IF A
SOURCE WITH NO VOLUME CONTROL IS CONNECTED TO HT/BP INPUTS AND
HT/BP BUTTON IS ENGAGED, FRONT CHANNEL AMPS WILL RECEIVE FULL
OUTPUT SIGNAL LEVEL FROM HT/BP INPUT SOURCE WITH NO ATTENUATION.
THIS COULD LEAD TO SYSTEM DAMAGE.
Do not operate or power up unit without tubes installed in tube sockets. Failure to do so will
result in damage to power supply.
WARNING: DO NOT POWER UNIT ON UNTIL LID IS ENTIRELY FASTENED.
VERY HIGH VOLTAGES ARE PRESENT INSIDE UNIT DURING OPERATION. IT IS
CRITICAL THAT PREAMP ENCLOSURE NOT BE OPEN WHEN UNIT IS POWERED
ON. FAILURE TO DO SO MAY RESULT IN SERIOUS INJURY OR DEATH.
WHEN CHANGING TUBES, POWER UNIT OFF AND DISCONNECT FROM ALL
POWER SOURCES. FAILURE TO DO SO MAY RESULT IN SERIOUS INJURY OR
DEATH.