Rolls PM350B - Manual (Page 3)

DESCRIPTION
LINE INPUT: 1/4" TRS stereo jack for connection to a line level source such as a
mixer monitor/auxiliary output, cassette player output, CD player output etc.
ground lift: Header jumper for disconnecting chassis ground from pin 1 of the Mic
Input and Mic Thru.
MIC THRU: XLR jack paralleled (hard-wired) to the MIC INPUT jack for pass-through
to a mixer or other microphone level input device.
MIC INPUT: XLR balanced jack for connection to a condenser or dynamic micro-
phone.
INSTRUMENT INPUT: 1/4" TRS stereo jack for connection to an instrument or line
level signal such as a guitar processor, keyboard, or instrument preamp output.
MONO/STEREO JUMPER: Selects whether the INST. INPUT jack is mono or stereo.
LEFT/RIGHT OUTPUTs: Electronically balanced 1/4" TRS outputs of the Instrument
Input.
ground lift: Header jumper for disconnecting chassis ground from the 1/4" TRS
instrument output jacks.
MONO/STEREO JUMPER (Located below the LINE INPUT): Selects whether the
LINE INPUT jack is mono or stereo.
NOTE: When in MONO mode, the ring of the jack
may be used to "phantom power" the PM350. See the OPERATION section for
details.
DC IN 12 VDC: For connection to the external Rolls PS27 power adapter.
HEADPHONE OUTPUTS:1/4" Stereo jack, and 1/8" stereo jack for connection to
stereo headphones or earphones.
LINE LEVEL: Adjusts the level of signal from the LINE INPUT to the headphone mix.
MIC LEVEL: Adjusts the level of signal from the MIC INPUT to the headphone mix.
INST. LEVEL: Adjusts the level of signal from the INST. INPUT to the headphone mix.
SCHEMATIC
2 5
MIC
INPUT
MIC
THRU
LINE
INPUT
PWR
HEADPHONE
OUTPUTS
LINE
LEVEL
MIC
LEVEL
INST.
LEVEL
mono
stereo
DC IN
12 VDC
+
-
P ERSONAL
M ONITOR
M IXER PLUS PM350b
INST.
IN
LEFT
OUT
RIGHT
OUT
lift gnd
lift gnd mon ster