Niles Audio MSU480, MSU250, F1 Specifications, Troubleshooting, MF Series, Infrared MicroFlasher

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Testing the Remote Control

Test that the hand-held remote control operates the component when you point it at the front panel (check the batteries if it does not).

Main System Unit Power Supply

Check that the red power light on the main system unit is lit (the in-line power supply should be plugged into an active AC wall outlet and supplying 12V DC).

Optical IR Feedback Loop

SPECIFICATIONS

IR System

Compatible with virtually all brands of remotes using carrier frequencies between 20 and 455 kHz.

IR Transmitting Range

Up to 4' (Typically mounts to the IR remote sen- sor window of an audio/video component).

IR Transmitting Angle

Transmits in a “pinpoint” transmission pattern

I N S T A L L A T I O N & O P E R A T I O N G U I D E

Niles Audio Corporation

12331 S.W. 130 Street Miami, Florida 33186

Tel: (305) 238-4373 Fax: (305) 238-0185

www.nilesaudio.com

FIGURE 4 Mounting the IR blocking cover

Using the IR Blocking Cover

To prevent your A/V component from receiving IR commands from sources other than the MicroFlasher, the IR blocking cover should be used. The IR blocking cover is designed to cover both the MicroFlasher and the IR sensor window of the component. The blocking cover serves two functions:

1. It ensures that a component receives

IR signals solely from the MF1 or MF2.

Mounting the IR Blocking Cover

Make sure the mounting surface is clean before installing the blocking cover. You may improve the appearance by trimming the cover with scissors to exactly cover the remote sensor win- dow. Mount the blocking cover (using the self- adhesive tape) so that the MF1 or MF2 and the IR remote sensor window of the component are completely covered (Figure 4).

TROUBLESHOOTING

If there is an IR sensor and an IR flasher located within the same room—an “optical IR feedback loop” can occur. This occurs when the IR output from a flasher unintentionally reaches an IR sen- sor located within the same room. The IR com- mands are eventually forwarded back to the IR flasher and the whole process endlessly repeats itself. This effect is similar to acoustical feedback (the howling or whistling sound heard in a P.A. system when the microphone is placed too close to the speaker).

The optical IR feedback loop can be eliminated by one of the two following methods:

1.Place the IR blocking cover over the MicroFlasher.

2.Move the IR sensor to a different location.

If problems persist, refer to the user’s manual for the main system unit, contact your local Niles

(the off-axis power drops off very rapidly).

Unit Dimensions

5/16" Wide x 3/16" High x 8/16" Long.

Mounting

Supplied with self-adhesive tape attached to the unit.

Wiring Requirements

Supplied with 10' of 2-conductor 24 gauge with

a3.5mm mono mini-plug. Substitute an 18 gauge 2-conductor wire for distances ranging from 10' to 20' and a 16 gauge 2-conductor wire for up to 200'.

IR Blocking Cover Dimensions

2" Wide x 2" High x 1/4" Deep.

MF Series

Infrared MicroFlasher®

©2004 Niles Audio Corporation. All rights reserved. Niles, the Niles logo and Blending High Fidelity and Architecture are registered trademarks of Niles Audio Corporation. Because we strive to improve our products, Niles reserves the right to change product specifications without notice. The technical and other information contained herein is not intended to set forth all technical and other specifications of Niles products. Additional information can be obtained on-line at www.nilesaudio.com or by calling Niles at 1-800-289-4434. 01/04 Printed in China DS00335ACN

2. It prevents the IR output of the MF1 or

MF2 from radiating to other components or

IR sensors.

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This troubleshooting section addresses the most common problems that prevent an infrared flasher from operating correctly.

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dealer or call Niles technical support at 1-800-289-4434.

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