Rolls RM203 User manual

RM203
Stereo Line Mixer
OWNERS MANUAL
ROLLS CORPORATION
SALT LAKE CITY, UTAH
3/00
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 Corporation, TRANS-
PORTATION 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 LIABILI-
TIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 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, INCI-
DENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR
ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER.
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.
0
0 100 100 100 100 100 100 10
BALBAL AUX BAL AUX BAL AUX BAL AUX BAL AUX BAL AUX
BAL AUX
LEVELLEVELLEVELLEVEL
LEVEL
LEVELLEVEL
R L 10 0
CLIP CLIP CLIP CLIP CLIP CLIP CLIP
R L 10 0 R L 10 0 R L 10 0 R L 10 0 R L 10 0 R L 10 0 R
12345
67
HEADPHONE/
AUX OUT
MASTER LEVEL
AUX RETURN
TAPE IN
LEVEL
CLIP
CLIP
PWR
0 100 10
0 10
0 10
BAL AUX
0 10
0 10
BAL AUX
A
LAUX
LEVELLEVEL
RM203
CLIP CLIP
L 10 0 R L 10 0 R L 10 0
8910

INTRODUCTION
Thank your for your purchase of the Rolls RM203 Stereo Line Mixer.The RM203
is a line-level mixer featuring ten channels of stereo inputs, aTape input and
output, and a mono auxiliary send and stereo return. Each channel has a signal
level control, a right/left balance control, an auxiliary level control, and a clip LED.
INSPECTION
1.Unpack and inspect the RM203 box and package.
Your RM203 was carefully packed at the factory in a protective carton.Nonethe-
less, be sure to examine the unit and the carton for any signs of damage that may
have occurred during shipping.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 theWarranty Registration Card and return it to the factory.
FEATURES
• 10 Stereo Inputs
• RCATape Inputs and Outputs
• Balanced 1/4”TRS Outputs
• Mono Auxiliary Send - Stereo Returns
• Clip Indication of each channel
• Balance control on each channel
• Headphone / Auxiliary Output
• External Power Supply included for quieter operation
TABLE OF CONTENTS
Introduction 1
Inspection 1
Features 1
Table of Contents 1
Description
Front Panel 2
Rear Panel 2
Connection/Operation 3 - 4
Specifications 5
Schematic 6
Warranty Back cover
SCHEMATIC
1
ROLLS CORPORATION
5143 South Main Street Salt Lake City, UT 84107
126-Mar-2000
Title Size: Document Number: RM203
Date:
Rev:
Sheet of
Rb
KEYBOARD MIXER RM203
D
VCC
AUX
BAL
CHANNEL 1 OF 10
REC IN
REC IN
VCC
AUX RETURN
AUX SEND
OVLOAD
OVLOAD
MONO/RIGHT
LEFT
VCC VCC
VCC VCC
VCC
VEE VEE VEE
VEE
VEE VCC
VEE
VCC
AUX
BAL
OVLOAD
MONO/RIGHT
LEFT
VCC
VEE
POWER
VCC VEE
R8 100K
R14 100
R15 100K
J2 PHONE 1/4 R109
4.7K
R101
10K
R110
10K
C103
1U
R112
10K
C101
1U
R102
2K C102
120PF
R103
47K R104
100K
R105
100K R106
10K
R107
4.7K
R113
47K
C104 120PF
R108
4.7K
R115
4.7K
R114
10K R116
4.7K
C1 1U
C2
10U
C3 1U
C4 10U
C9 1U
6 57
8
U1B
4560
2 31
4
U1A
4560
2 31
4
U2A
4560
6 5
7
8
U3B
4560
3 2
1
4
U3A
4560
6 5
7
8
U4B
4560
3 2
1
4
U4A
4560
6 57
8
U5B
4560
2 31
4
U5A
4560
R20 100
R21 10K R22
1K
C8
120PF
C7
120PF R18
10K
R19 10K
C6
120PF
C5
120PF
R16 10K
R17 10K
R1
100
R2
10K R3
1K
R5
10K
R10 10K
R12
1K
R11
100K
R9
100
6 57
8
U2B
4560
R7
100
R13
51
R6 51
R23
4.7K
Q101
2N3904
D101
LDRR
D1 LDRR
R202
2K C202
120PF
R203
47K R204
100K
R205
100K R206
10K
Q201
2N3904
R207
4.7K
D201
LDRR
R209
4.7K
R208
4.7K
R213
47K
R215
4.7K
R214
10K
R211
2K
R212
10K
R201
10K
R210
10K
C204 120PF
C203
1U
C201
1U
J3 PHONE 1/4 J4 PHONE 1/4
1
3
J21A RCAX4
2
7
J21B RCAX4
5
8
J21D RCAX4
J22 PHONE 1/4
J23 PHONE 1/4
J24 PHONE 1/4
4
6
J21C RCAX4 J25 PHONE 1/4 J26 PHONE 1/4
J27 PHONE 1/4
4 6
5
P1B
P100K X2
P2 P100K
P3
P100K
4 6
5
P4B
P100K X2
1 3
2P4A
P100K X2
P5 P100K
P6
P100K
1 3
2
P33A P100K X2
4 6
5
P33B P100K X2
1 3
2
P34A P100K X2
4 6
5
P34B P100K X2
Q1 2N3904
D2
1N4001
2 3 1
J28 JAPDC D4
LDSG
R30 10K R27 10K R29 10K R28 10K
R111 2K
1 3
2
P1A
P100K X2
J1
PHONE 1/4
2 31
4
U101A
4560
6 57
8
U101B
4560
6 57
8
U201B
4560
2 31
4
U201A
4560
C12 1UF C13 10U
C14 503
R217 10K
R216 4.7K
R117 10K
4 6
5
P31B
P100K X2
1 3
2
P31A
P100K X2
R4
100K
I
1
G
2
O3
U6
7812
I
2
G1
O3
U7
7912 R24
4.7K
D3
1N4001
C10
1000UF 16V
C11
1000UF 16V
REC OUT
REC OUT
16

DESCRIPTION
FRONT PANEL
HEADPHONE/
AUX OUT
MASTER LEVEL
AUX RETURN
TAPE IN
LEVEL
CLIP
CLIP
PWR
0 100 10
0 10
0 10
BAL AUX
0 10
0 10
0 100 100 100 100 100 100 10
BAL AUX BAL AUX BAL AUX BAL AUX BAL AUX BAL AUX BAL AUX BAL AUX
BAL AUX
LEVELLEVELLEVELLEVELLEVELLEVEL
LEVEL
LEVELLEVEL
RM203
R L 10 0
CLIP CLIP CLIP CLIP CLIP CLIP CLIP CLIP CLIP
R L 10 0 R L 10 0 R L 10 0 R L 10 0 R L 10 0 R L 10 0 R L 10 0 R L 10 0 R L 10 0
12345
678910
Note:Channels One throughTen are identical.
Channel Section
Bal:Adjusts the relative level of the channel signal to the Right and Left outputs.
Aux:Adjusts the amount of signal sent to the Auxiliary Output
Level: Adjusts the overall signal level of the channel.
Clip:When lit, indicates clipping of excessive level into the channel.
Master Section
Tape In:Adjusts the amount of input signal from the rear panelTape In jacks.
Aux Return:Controls the amount of signal received at the stereo Aux Return
jacks.
Master Level :Controls the overall output level of the RM203.
Headphone/Aux out:1/4”TRS stereo jacks for monitoring the master right and left
signals, also may be used as an alternative stereo output for connecting to
another stereo amplifier.
PWR:Indicates that the RM203 is connected to an AC outlet and is on.
REAR PANEL
POWER
12 VAC RIGHT
OUT LEFT
OUT RIGHT/MON
AUX RTN LEFT
AUX RTN
AUX
SEND RIGHT LEFT
10
MODEL RM203
MADE IN THE U.S.A.
OUT IN
R
L
RIGHT LEFT
9
RIGHT LEFT
8
RIGHT LEFT
7
RIGHT LEFT
6
RIGHT LEFT
5
RIGHT LEFT
4
RIGHT LEFT
3
RIGHT LEFT
2
RIGHT LEFT
1
TAPE MONO MONO MONO MONO MONO MONO MONO MONO MONO MONO
203-
S/N
Master Outputs
Right and Left Out:1/4”TRS balanced main output jacks.For connection to an
amplifier, recording device or signal processor.
Right and Left Aux Return: 1/4”unbalanced jack, for connection to the right and
left outputs of a signal processor, or they may be used as auxiliary inputs.
Aux Send:1/4” unbalanced jack, for connection to a signal processor input such
as a multi-effects processor.This output may also be used as a monitor send for
connection to an amplifier and speakers for monitoring.
Tape Out:Stereo RCA jacks for connection to a stereo input device such as a
cassette player or CAT machine, for recording program material. Level is con-
trolled by individual channel volumes.
Tape Inputs: Stereo RCA jacks for connection to a source such as a cassette
player or CD player.
Channel Inputs
Note:Channels One throughTen are identical.
Right / Left:1/4”TS unbalanced jacks for connection to the right and left outputs of
a stereo instrument, or if nothing is plugged into the Left input, the signal con-
nected to the Right input feeds both sides.
SPECIFICATIONS
InputImpedance: 10 k Ωunbal.
OutputImpedance: 50 Ωbal
Max Input Level: +18 dBV
Phase Shift: < 10 deg. 20 Hz - 20 kHz
Connectors: 1/4" and RCA
Max Gain: 26 dB Line
26 dB Aux
S/N Ratio: >90 dB
THD < .003%
IMD (SMPTE) < .003%
Power 120 VAC 50-60 Hz, 15W
Weight: 7 lbs (3kg)
Size: 19" x 1.75" x 6.5"
(48cm x 4.5cm x 17cm)
2
5

CONNECTION / OPERATION
The following three sections show examples for:
1. Connecting the inputs
2.Connecting the auxiliary section to a signal processor
3.Connecting the outputs.
INPUT CONNECTION EXAMPLE
POWER
12 VAC RIGHT
OUT LEFT
OUT RIGHT/MON AUX RTN LEFT
AUX RTN
AUX
SEND RIGHT LEFT
10
MODEL RM203
MADE IN THE U.S.A.
OUT IN
R
L
RIGHT LEFT
9
RIGHT LEFT
8
RIGHT LEFT
7
RIGHT LEFT
6
RIGHT LEFT
5
RIGHT LEFT
4
RIGHT LEFT
3
RIGHT LEFT
2
RIGHT LEFT
1
TAPE MONO MONO MONO MONO MONO MONO MONO MONO MONO MONO
203- S/N
MIDI CONTROL
UP TO 9 TOTAL
SOUND MODULES
RIGHT AND LEFT
OUTPUTS RIGHT AND LEFT OUTPUTS
FROM EACH SOUND MODULE
The RM203 is designed to receive line-level signals, thus a microphone or other
low input signal will be insufficient to drive the RM203 inputs.Connect the outputs
of each instrument or module via a 1/4” cable.
AUXILIARY SEND/STEREO RETURN CONNECTION EXAMPLE
POWER
12 VAC RIGHT
OUT LEFT
OUT RIGHT AUX RTN LEFT
AUX RTN
AUX
SEND RIGHT LEFT
10
MODEL RM203
MADE IN THE U.S.A.
OUT IN
R
L
RIGHT LEFT
9
RIGHT LEFT
8
RIGHT LEFT
7
RIGHT LEFT
6
RIGHT LEFT
5
RIGHT LEFT
4
RIGHT LEFT
3
RIGHT LEFT
2
RIGHT LEFT
1
TAPE MONO MONO MONO MONO MONO MONO MONO MONO MONO MONO
203- S/N
MULTI-EFFECTS PROCESSOR LEFT
INPUT RIGHT
OUTPUTS
Connect 1/4” unbalanced cables to the Aux Send to the Input of the signal proces-
sor, and connect each signal processor output to its corresponding Aux Return
jack.Set the “Mix”control on your signal processor to 100% effect since the dry
portion of the signal is mixed in the RM203.
NOTE:The RM203 Aux Send jack may also be connected to an amplifier, then to
speakers and used as a Monitor Send.
CONNECTING THE OUTPUTS
POWER
12 VAC RIGHT
OUT LEFT
OUT RIGHT/MON AUX RTN LEFT
AUX RTN
AUX
SEND RIGHT LEFT
10
MODEL RM203
MADE IN THE U.S.A.
OUT IN
R
L
RIGHT LEFT
9
RIGHT LEFT
8
RIGHT LEFT
7
RIGHT LEFT
6
RIGHT LEFT
5
RIGHT LEFT
4
RIGHT LEFT
3
RIGHT LEFT
2
RIGHT LEFT
1
TAPE MONO MONO MONO MONO MONO MONO MONO MONO MONO MONO
203- S/N
MADE IN U.S.A.
RISQUE DE CHOC - NE PAS ENLEVER
SERIAL NUMBER
WARNING:
To reduce the risk of electric
shock or fire do not expose
this device to rain or moisture.
CHANNEL 2 INPUT CHANNEL 1 INPUT
BRIDGE NORMAL
OUTPUT 2 OUTPUT 1
4A 120V - 2A 230 V
OUTPUT 1
OUTPUT 2
-
-
+
+
MAINS POWER
WARNING
For continued prootection against
risk of fire, replace only with
same type and rating of fuse.
CAUTION
TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT NOT REMOVE LID. NO
USER SERVICABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL
CORPORATION
Connect the RM203 Right and Left Outputs to an amplifier via two balancedTRS
1/4” jacks (twoTS unbalanced jacks will work as well).
34