- MARK LEVINSON INSTRUCTION MANUAL PREAMPLIFIER JC-2

PLS-150 POWER SUPPLY SYSTEM
JC-2 preamplifiers with Lemo connectors are equipped with the PLS-150 Power
Supply. The PLS-150 Power Supply is considerably larger and heavier than the
ones delivered with previous units. We recommend that it be positioned with
the cable end facing the wall and the front plate facing forwards. In this
way, the two LED' s will be visible. these lights indicate that the power
supply is receiving the correct AC voltage and is delivering the correct DC
voltage. If the AC light blinks or goes off, this indicates that the AC
line voltage has dropped to unacceptable levels. If the DC light goes out
it indicates that the power supply is no longer functioning. Should either of
these lights go out, contact your dealer or factory for service.
The PLS-150 Power Supply is a remote sensing design. This means that the
power supply adjusts the voltage to be accurate at the preamp itself, adjusting
for any effects of the cable and reducing cross modulation of the audio circuits
to virtually zero.
The PLS-150 chassis is removed from its cover by removing the four feet and
single captive screw on top of the unit. Look inside if you want to, but
don' t play with it unless you have specific instructions from the factory.