Rolls RPB486 Important notice, Introduction, Description, Installation, Specifications, Schematic

INTRODUCTION

Thank you for your purchase of the ROLLS RPB486 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 bal- anced for easy connection to a digital multi-track recorder.

To eliminate the possibility of any DC voltages, the RPB486 features pull-down resistors and isolation capacitors on all outputs.

DESCRIPTION

FRONT PANE L

The green LED for each channel lights when that channel is in use. All these LEDs light momentarily when the RPB486 is powered up.

INSTALLATION

Mount the RPB486 in a sturdy rack. Connect microphones to properly shielded balanced cable, and connect the cable to the Input channels of the RPB486. Connect the outputs of the RPB486 to the recording or mixing device.

The output impedance of the RPB486 will be the same as the impedance of your microphone.

Important notice!

The RPB486 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 RPB486 is powered up.

The red PWR led indicates the unit is on.

REAR PANEL

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.

SCHEMATIC

Đ 1 Đ 2 Đ 1 Đ 2 Đ 1 Đ 2

	SW3Đ
3	SW SPSTĐ
Đ	2 Đ
1
AC1Đ
AC PLUGĐ
Đ	C6Đ
	503Đ

						J2Đ
	C1Đ 47UFĐ					PHONE 1/4Đ
XLR JACK FĐ
J1Đ
3 Đ
	C2Đ
R2Đ	47UFĐ				R5Đ
	R1Đ	R4Đ		100KĐ
6.8KĐ		100KĐ
	6.8KĐ					+ 4 8 V Đ
C3Đ
47UĐ	R3Đ		D12Đ
	100Đ		LDLGĐ			J2AĐ
	C1AĐ47UFĐ					PHONE 1/4Đ
XLR JACK FĐ
J1AĐ
3 Đ
	C2AĐ
R2AĐ	47UFĐ				R5AĐ
	R1AĐR5AĐ			100KĐ
6.8KĐ	6.8KĐ	100KĐ				+ 4 8 V Đ
C3AĐ
47UFĐ	R7Đ		D11Đ
	100Đ		LDLGĐ			J2BĐ
	C1BĐ47UFĐ					PHONE 1/4Đ
XLR JACK FĐ
J1BĐ
3 Đ
	C2BĐ				R5BĐ
R2BĐ	47UFĐ
	R1BĐ R5BĐ			100KĐ
6.8KĐ	6.8KĐ	100KĐ				+ 4 8 V Đ
C3BĐ
47UFĐ	R8Đ		D10Đ
	100Đ		LDLGĐ
T1Đ						+ 4 8 V Đ
	D2Đ				7812Đ
	1N4001Đ		1 Đ		U1Đ		3 Đ
					IĐ O Đ
		C5Đ			G
		470UFĐ
					Đ	D6ĐPOWERĐ
				2
		C4Đ				LDSRĐ
	D1Đ	470UFĐ
MCI 407 4024Đ
				Đ
1N4001Đ						D3Đ
						ZD12VĐ
						D5Đ		D4Đ
								ZD12VĐ
						ZD12VĐ

					J2CĐ
2	XLR JACK FĐ	C1CĐ47UFĐ			PHONE 1/4Đ
	J1CĐ
Đ	3 Đ
		C2CĐ
	R2CĐ	47UFĐ			R5CĐ
1		R1CĐ R4CĐ			100KĐ
	6.8KĐ	6.8KĐ	100KĐ		+ 4 8 V Đ
	C3CĐ
Đ	47UFĐ	R9Đ		D9Đ
		100Đ		LDLGĐ
					J2DĐ
2		47UFĐ			PHONE 1/4Đ
	XLR JACK FĐ
		C1DĐ
	J1DĐ
Đ	3 Đ
		C2DĐ
	R2DĐ	47UFĐ			R5DĐ
1		R1DĐ R4DĐ			100KĐ
	6.8KĐ	6.8KĐ	100KĐ		+ 4 8 V Đ
	C3DĐ	R10Đ		D8Đ
Đ	47UFĐ
		100Đ		LDLGĐ
					J2EĐ
2	XLR JACK FĐ	C1EĐ47UFĐ			PHONE 1/4Đ
	J1EĐ
Đ	3 Đ
		C2EĐ
	R2EĐ	47UFĐ			R5EĐ
1		R1EĐ R4EĐ			100KĐ
	6.8KĐ	6.8KĐ	100KĐ		+ 4 8 V Đ
	C3EĐ
Đ	47UFĐ	R11Đ		D7Đ
		100Đ		LDLGĐ

R O L L S C O R P O R A T I O N Đ 5 9 6 8 S o u t h 3 5 0 W e s t Đ

	M u r r a y , U T 8 4 1 0 7 Đ
	RPB486 RPB623Đ
S i z e : Đ	D o c u m e n t N u m b e r : Đ	R e v : Đ
B a Đ	R P B 6 2 3 . S C H Đ	AĐ

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