Rolls RPB486 - Introduction and Overview; Unit Description; Front Panel; Rear Panel

INTRODUCTION
Thank you for your purchase of the ROLLS RPB623 PHANTOM HEX 6 channel
phantom power supply. This unit powers up to 6 condenser microphones with 48
volts of ultra clean phantom power. The outputs are 1/4” Tip-Ring-Sleeve balanced
for easy connection to a digital multi-track recorder.
To eliminate the possibility of any DC voltages, the RPB623 features pull-down
resistors and isolation capacitors on all outputs.
DESCRIPTION
FRONT PANEL
PHANT
HANT
OM
HE
HE
X
PWR
The green LED for each channel lights when that channel is in use. All these
LEDs light momentarily when the RPB623 is powered up.
The red PWR led indicates the unit is on.
REAR PANEL
INPUTOUTPUT
CHANNEL ONE
INPUTOUTPUT
CHANNEL TWO
INPUTOUTPUT
CHANNEL THREE
INPUTOUTPUT
CHANNEL FOUR
INPUTOUTPUT
CHANNEL FIVE
INPUTOUTPUT
CHANNEL SIX
MODEL RPB623
120 VAC
50/60 Hz 15 VA
SERIAL NUMBER
623-
NRTL/C
WARNING: To reduce the risk of electric shock or fire, do not expose
this device to rain or moisture.
CAUTION: To reduce the risk of electric
shock do not remove lid. No user serviceable parts inside.
Refer servicing to qualified service personnel.
MADE IN U.S.A
R
120 VAC 50/60 HZ 15 VA: Power Cord. Connect to a properly grounded AC
source.
NOTE: THE FOLLOWING DESCRIPTION APPLIES TO EACH OF THE SIX
CHANNELS.
INPUT: Female balanced XLR jack - for connection to the condenser microphone.
Pin 2 is hot. This jack carries the 48 volts of phantom power to the microphone.
OUTPUT: 1/4” Tip-Ring-Sleeve balanced jack - for connection to a mixer or multi-
track recorder. Note: If you are connecting this to a mixer, adjust the mixer’s gain
or trim control carefully for a suitable input level.
SPECIFICATIONS
Connectors: 6 ea. XLR female jacks (pin 2 hot)
6 ea. 1/4” TRS jacks (tip positive)
Phantom Power Voltage: 48 Volts
Max Phantom Power Current: 14 mA each channel
Power Supply: Linear 120VAC 50/60Hz
Size (W x H x D): 19" x 1.75" x 2.5" (48 x 4.5 x 12.7)
Weight: 4 lbs.
INSTALLATION
Mount the RPB623 in a sturdy rack. Connect microphones to properly shielded
balanced cable, and connect the cable to the Input channels of the RPB623.
Connect the outputs of the RPB623 to the recording or mixing device.
The output impedance of the RPB623 will be the same as the impedance of your
microphone.
Important notice!
The RPB623 should be powered up and connected to the
microphones before power is applied to the power amplifiers or
recording device. A noticeable thump sound will be heard if
power amps are on before the RPB623 is powered up.
SCHEMATIC
Rev:
Sheet
Ba RPB623.SCH
A
+48V
R5
100K
J2
PHONE 1/4
1 2
3
J1
XLR JACK F
POWER
+48V
D2
1N4001
D1
1N4001
I
1
G
2
O
3
U1
7812
C1
47UF
C6
503
T1
MCI 407 4024
SW3
SW SPST
R4
100K
C2
47UF
D6
LDSR
C5
470UF
C4
470UF
1 3
2
AC1
AC PLUG
D3
ZD12V
D5
ZD12V
D4
ZD12V
R1
6.8K
R2
6.8K
R3
100
D12
LDLG
C3
47U
+48V
100K
PHONE 1/4
1 2
3
J1A
XLR JACK F
C1A
47UF
R5A
100K
C2A
47UF
R1A
6.8K
R2A
6.8K
R7
100
D11
LDLG
C3A
47UF
+48V
100K
PHONE 1/4
1 2
3
J1B
XLR JACK F
C1B
47UF
R5B
100K
C2B
47UF
R1B
6.8K
R2B
6.8K
R8
100
D10
LDLG
C3B
47UF
+48V
R5C
100K
J2C
PHONE 1/4
1 2
3
J1C
XLR JACK F
C1C
47UF
R4C
100K
C2C
47UF
R1C
6.8K
R2C
6.8K
R9
100
D9
LDLG
C3C
47UF
+48V
R5D
100K
J2D
PHONE 1/4
1 2
3
J1D
XLR JACK F
C1D
47UF
R4D
100K
C2D
47UF
R1D
6.8K
R2D
6.8K
R10
100
D8
LDLG
C3D
47UF
+48V
R5E
100K
J2E
PHONE 1/4
1 2
3
J1E
XLR JACK F
C1E
47UF
R4E
100K
C2E
47UF
R1E
6.8K
R2E
6.8K
R11
100
D7
LDLG
C3E
47UF
J2A
J2B
R5A
R5B
ROLLS CORPORATION
5968 South 350 West
Murray, UT 84107
PHANTOM HEX RPB623
Size:
Document Number:
1 of 1