Rolls PM350 User manual

Owners Manual
Rolls Corporation
Salt Lake City, UT
6/01
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be
free from defects in materials and workmanship under normal installation, use
and service for a period of one (1) year from the date of purchase as shown on
the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be
limited to repair or replacement (at our option), during the warranty period of
any part which proves defective in material or workmanship under normal
installation, use and service, provided the product is returned to Rolls Corpora-
tion, TRANSPORTATION CHARGES PREPAID. Products returned to us or to
an authorized Service Center must be accompanied by a copy of the purchase
receipt. In the absence of such purchase receipt, the warranty period shall be one
(1) year from the date of manufacture.
This warranty shall be invalid if the product is damaged as a result of
defacement, misuse, abuse, neglect, accident, destruction or alteration of the
serial number, improper electrical voltages or currents, repair, alteration or
maintenance by any person or party other than our own service facility or an
authorized Service Center, or any use violative of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties,
obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR
LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU-
LAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR
DURATION OF THIS WRITTEN LIMITED WARRANTY. Some states do not
allow limitations on how long an implied warranty lasts, so the above limitation
may not apply to you.
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS
OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSO-
EVER. Some states do not allow the exclusion or limitation of special,
incidental or consequential damages so the above limitation or exclusion may
not apply to you. This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
PM350
Personal Monitor
Mixer
PM350 Personal
Monitor Mixer
The PM350 mixes an XLR mic signal, 1/4 unbal-
anced instrument signal, and a 1/4" TRS stereo
monitor signal together for headphone monitor-
ing.
• XLR Mic In & Pass Through
• Stereo or Mono 1/4" Line Input
• "Phantom" powering via the Line In
• Mono 1/4" Instrument In with built-in DI
• Two Headphone Outputs 1/4" and 1/8"
• Lots of output level, it's loud.
MIC
INPUT
MIC
THRU
LINE
INPUT
PWR
HEADPHONE
OUTPUTS LINE
LEVEL MIC
LEVEL INST.
LEVEL
MONO
STEREO
DC IN
12VDC
+
-
P
P
ERSONAL
ERSONAL
M
M
ONITOR
ONITOR
MIXER
IXER
PM350
132
+-
INST.
INPUT INST. OUTPUT

INTRODUCTION
Thank you for your purchase of the PM350 Personal Monitor Mixer.This
unit mixes a microphone signal with a 1/4" unbalanced instrument level
signal and a 1/4"TRS stereo or mono monitor signal.
The PM350 is designed for performers who want to monitor their own
sounds, such as their vocals and instruments, with the main mix via
headphones or earphones.It's very popular with drummers who need to
mix a click track with a monitor signal. Church choir singers love the
PM350 to monitor their voices over the musicians.
The PM350 is shipped with an external AC adapter.
INSPECTION
1.Unpack and inspect the PM350 box and package.
If obvious physical damage is noticed, contact the carrier immediately to
make a damage claim.We suggest saving the shipping carton and
packing materials for safely transporting the unit in the future.
2.Please complete the Warranty Registration Card and return it to the
factory.
TABLE OF CONTENTS
INTRODUCTION 1
INSPECTION 1
TABLE OF CONTENTS 1
DESCRIPTION 2
CONNECTION 3
OPERATION 4
SCHEMATIC 5
SPECIFICATIONS 6
WARRANTY BACK COVER
SPECIFICATIONS
Max InputLevel: -20 dB XLR, 40 dB Line and Instrument
Inst.InputImpedance: 50K W
Inst.Frequency Response: 50 - 15kHz +/- 3 dB
Output Impedance, Hdphn: 10 9
Output Impedance, Inst.: 600 9
Gain: 15 dB 1/4", 50 dB XLR
Hdphn Freq.Response: 20 - 20 kHz
S/N Ratio: 90 dB
Power: 9 - 18 VDC
Size (W x H x D): 4.5" x 3.3" x 1.5"
Weight: 1 lb (.45 Kg)
1 6

DESCRIPTION
MIC
INPUT
MIC
THRU
LINE
INPUT
PWR
HEADPHONE
OUTPUTS LINE
LEVEL MIC
LEVEL INST.
LEVEL
MONO
STEREO
DC IN
12VDC
+
-
P
P
ERSONAL
ERSONAL
M
M
ONITOR
ONITOR
MIXER
IXER
PM350
132
+-
INST.
INPUT INST. OUTPUT
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.
MIC INPUT:XLR balanced jack for connection to a condenser or dynamic
microphone.
MICTHRU:XLR jack paralleled (hard-wired) to the MIC INPUT jack for pass-
through to a mixer or other microphone level input device.
INSTRUMENT INPUT:1/4" Unbalanced jack for connection to an instrument
to line level signal such as a guitar, keyboard, or instrument preamp output.
INSTRUMENT OUTPUT:Transformer balanced XLR output of the Instrument
Input.
MONO/STEREO JUMPER: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 12VDC:For connection to the external Rolls PS27 power adapter.
HEADPHONE OUTPUTS:1/4" Stereo jack, and 1/8" stereo jack for connec-
tion to stereo headphones or earphones.
LINE LEVEL:Adjusts the level of signal from the LINE INPUT to the head-
phone 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 head-
phone mix.
SCHEMATIC
ROLLS CORPORATION
5968 South 350 West
Salt Lake City, UT 84107
1
21-May-2001
Date:
Rev: A
Sheet of
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Title: PERSONAL MONITOR PM350S
Size: Document Number:
PM350.SCH
1
25

INST.
INPUT INST. OUTPUT
MIC
INPUT
MIC
THRU
LINE
INPUT
PWR
HEADPHONE
OUTPUTS LINE
LEVEL MIC
LEVEL INST.
LEVEL
MONO
STEREO
DC IN
12VDC
+
-
P ERSONAL
M
ONITOR
M IXER
PM350
INST.
INPUT
MIC
INPUT
MIC
THRU
LINE
INPUT
CONNECTION
The diagram below shows an example of how to connect the PM350 for
properoperation.
•The LINE INPUT connects to either a 1/4" stereo or mono plug.If this plug is
Tip-Ring-Sleeve stereo and you're sending a stereo signal to this jack, select
the STEREO setting of the Mono/Stereo jumper.If the plug is Tip-Sleeve
mono, select the MONO setting of the Mono/Stereo jumper.The MONO
setting is also the proper selection if you are phantom powering the PM350.
•The MIC INPUT connects to either a dynamic or condenser microphone via
a standard XLR cable. If you are using a condenser type mic, you will need to
power it via phantom power from the mixer which connects to the MICTHRU
jack.This jack will pass the phantom power from a mixer on to the micro-
phone.
•Connect the MIC THRU jack to the mixer or snake as necessary.
•The INSTRUMENT INPUT connects to a guitar, guitar preamp output,
keyboard, or any unbalanced instrument level signal.
•The INSTRUMENT OUTPUT is transformer isolated and converts the high
impedance INSTRUMENT INPUT signal to low impedance so it can be sent
down a balanced line.This is then plugged into an XLR input on a mixer or
snake. Note that the level of this signal may be to high for a mixer's micro-
phone input - you may experience distortion.In this event, turn down the
instrument connected to
the PM350 INSTRU-
MENT INPUT, pad the
input to the mixer's mic
input, or trim down the
mic input.
Connect your head-
phones or earphones to
the proper Headphone
Output.
OPERATION
Make sure the Rolls PS27 12VDC power supply is connected to an active AC
outlet, and all audio connections are in place.
•Setting the Mono/Stereo jumper;
If the input to the LINE INPUT is aTip-Ring-Sleeve
stereo signal, set the Mono/Stereo jumper for stereo
operation as shown here.This is the way the unit
comes from the factory.
If the signal to the LINE INPUT isTip-Sleeve mono,
move the jumper up to connect the upper two pins.
NOTE: If this jumper is missing, only one side of the
headphones/earphones will work.
•Phantom Powering the PM350
A very useful feature of the PM350 is the ability to send
the 12VDC power to the unit via the LINE INPUT ring
connection.Make sure the Mono/Stereo jumper is in the
MONO position. Connect the 12VDC to the Ring of the
TRS plug as shown here.
ROLLSWILL NOT BE HELD RESPONSIBLE FOR
DAMAGE DONE TO THE PM350 AS A RESULT OF
IMPROPER USE OFTHIS FEATURE. IFYOU ARE NOT
SURE HOW TO DO THIS
CORRECTLY, CONTACT A
QUALIFIED SERVICE TECH-
NICIAN.
MIC
THRU
LINE
INPUT
HEADPHONE
OUTPUTS
MONO
STEREO
3 4