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INTRODUCTION
Thank you for your purchase of the HR155. This unit is designed and
manufactured to monitor sound from any stereo RCA line level output or
a single balanced XLR at line level. The front panel stereo 3.5mm (1/8"
jack) input provides the fi nal touch which makes the HR155 a valuable
tool for any sound reinforcement, recording, or install application that
needs to monitor sound from a rack mounted unit.
INSPECTION
1. Unpack and Inspect the HR155 package.
Your HR155 was carefully packed at the factory in a protective carton.
Nonetheless, 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. For warranty registration go to our website: WWW.ROLLS.COM
DESCRIPTION
REAR PANEL
XLR Input: XLR balanced input for connection to any standard line level
XLR output.
INPUT: RCA stereo for connection to any line level RCA output.
OUT: RCA pass thru for the HR155. If an input is plugged into
the RCA INPUT of the HR155 the OUT is a direct pass
thru for the signal eliminating the need for Y type cables in your
installation.
PS15: Located on the back of the unit is the PS15 power jack for connec
-tion to the Rolls PS15 external power supply.
FRONT PANEL
STEREO IN: 1/8" TRS jack (3.5mm) stereo for connection to a line level
signal.
VOLUME: Controls /adjusts the volume level of the HR155.
POWER: Turns on and off the power the HR155.
PWR: Indicates the HR155 is on.
SCHEMATIC
1
Rolls Corporation
5968 S 350 W
Murray Utah 84107
1
HR155.SCH
A
7 JULY 2010
Title
Size: Document Number:
Date:
Rev:
Sheet of
HR155 POWER SPEAKER
FXa
+BLINE/HDPHONE
SPEAKER OUT
+V
CH 4
15 VDC 800MA
P1
P100K
2
3
1
J5
ROLLS PS15 ONLY
R12
10K
5
6
4
J2B
RCAX4 PC
R1
10K
R2
10K
2
3
1
J2A
RCAX4 PC
R9
47
R10
47
R11 100K
C16
1K U
D1
1N4001
R7
22K
R8
22K
C3
47U
C17
1000 UF
3
2
1
4
U1A
4556
6
5
7
8
U1B
4556
C8 120PF
1 2
3
J1
XLR F PC
C4
10U
R14
10K
R16 10K
Q1
TIP41
C2
1U
+B
R13
4.7K
D5
LDRR
C7
10U
C1
1U
R5
10K
R4
10K
+B
R6 10K
C6
120PF
R3
10K
C5
120PF
+V
J3
3.5STJK
Q2
TIP42
4
5
6
SW1B
DPDT
1
2
3
SW1A
DPDT
SPK1
SPEAKER
SPK2
SPEAKER