Buzz Off HE18 - Audio/video converter ROLLS - Free user manual and instructions

Type	Audio/video converter
Brand	Rolls
Model	Buzz Off HE18
Input Connectors	Composite video (RCA), stereo audio (RCA L/R)
Output Connector	HDMI (Type A)
Supported Video Formats	NTSC, PAL
Output Resolution	720p or 1080p (upscaled)
Power Supply	5V DC via USB (cable included)
Power Consumption	2.5W typical
Dimensions (W x D x H)	4.5 x 2.5 x 1.0 inches
Weight	4 oz (113 g)
Operating Temperature	32°F to 104°F (0°C to 40°C)
Features	Automatic input detection, built-in scaling, audio embedding
LED Indicators	Power and signal status
Housing	Aluminum case with black finish
Mounting	Desktop or Velcro strip (not included)
Included Accessories	USB cable, quick start guide
Cleaning	Wipe with dry cloth; do not use liquids
Safety	Use only supplied power adapter; avoid moisture
Warranty	1 year limited

Frequently Asked Questions - Buzz Off HE18 ROLLS

What does the Rolls Buzz Off HE18 do?

It converts analog composite video and stereo audio signals to digital HDMI, making it easy to connect older devices like VCRs or game consoles to modern TVs.

What input formats does it support?

It supports NTSC and PAL composite video (CVBS) and analog stereo audio via RCA connectors.

What output resolution does it provide?

It outputs upscaled HDMI at 720p or 1080p, depending on the input and automatic detection.

Does it require external power?

Yes, it is powered via a 5V USB connection. A USB cable is included; you can plug it into a USB wall adapter or a TV's USB port.

Is the Buzz Off HE18 compatible with all TVs?

It works with any TV or monitor that has an HDMI input. Ensure your TV supports the output resolution (720p/1080p).

How do I connect it?

Connect your source device (e.g., VCR) to the RCA inputs, then connect the HDMI output to your TV. Finally, plug in the USB power.

Does it support audio?

Yes, the left and right RCA audio inputs are combined and transmitted over HDMI in stereo.

What if there is no picture or sound?

Check all cable connections, ensure the source is powered on and playing, and verify the TV is on the correct HDMI input. Also confirm the USB power cable is connected.

Can I use it with a game console like the NES?

Yes, as long as the console outputs composite video and stereo audio through RCA jacks, it will work.

Is there any software or driver needed?

No, it is plug-and-play. No additional software or drivers are required for operation.

USER MANUAL Buzz Off HE18 ROLLS

Thank you for your purchase of the HE18 Buzz Off. If you've got hum or buzz in your audio signal, the HE18 is the solution you need. Almost all AC hum is caused by ground loops. These ground loops act like radio antennae, picking up hum and noise. The HE18 removes many causes of noise by eliminating the ground potential.

INSPECTION

1. Unpack and Inspect the HE18 package

Your HE18 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.

WARRANTY

For information on the Rolls One Year Limited Warranty, and to register this product, visit our website at www.rolls.com

DESCRIPTION

INPUT(S): 2 ea; 1/4" Tip-Ring-Sleeve jacks
2 ea; RCA jacks

OUTPUT(S): 2 ea; 1/4" Tip-Ring-Sleeve jacks 2 ea; RCA jacks

OPERATION

To insert the HE18 in a system with a buzz or hum, disconnect the device you suspect is causing the noise. Connect that device's Output to either of the Inputs (1/4" or RCA), and connect the HE18 Output(s) to the next device in the signal chain.

For example; if you've got a buzz in your video system, connect the HE18 between the video unit and amplifier to isolate the signals.

PLEASE NOTE: THE HE18 IS INTENDED TO RECEIVE LINE LEVEL (0db to +4 dB) SIGNALS. DO NOT CONNECT A MICROPHONE LEVEL SIGNAL OR A SPEAKER (POW-ERED) LEVEL SIGNAL TO THIS UNIT.

CONNECTING A SPEAKER LEVEL SIGNAL (ie. THE OUTPUT OF A POWER AMPLIFIER) WILL CAUSE PERMANENT DAMAGE TO THE HE18.

Abstract diagram with six yellow circles and red centers on a dark background (no text or symbols)

Two yellow circles on a dark background, no text or symbols present

DIAGRAM

Max Out: Bal: +18 dB

Unbal: +12 dB

Max In: Bal: +22 dB

Unbal: +22 dB

Input Impedance: RCA: 10 k Ohm

1/4": 10 k Ohm balanced

Output Impedance: RCA: 10 k Ohm

1/4": 10 k Ohm balanced

THD: .05% @ 1 kHz

Weight: 1 lbs. (.45 Kg)

Size: 4.15" x 2.46" x 1.55"

SCHEMATIC

HE18 BUZZ OFF

ROLLS

- Helps eliminate ground hum and buzz - Dual channel - No power required - completely passive - Converts balanced to unbalanced lines and vice versa

The HE18 helps remove hum and buzz from a balanced or unbalanced line. Perfect for musicians or audio professionals, the unit is safe and convenient to operate. Simply connect the offending line into the input, and connect the output to your next device.

HE18 Buzz Off