NuTone IM-440 Series INSTALLER’S Troubleshooting Guide, Trouble Possible Cause Possible Remedy

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INSTALLER’S TROUBLESHOOTING GUIDE

TROUBLE

POSSIBLE CAUSE

POSSIBLE REMEDY

 

 

 

No radio, no intercom.

No electrical power.

Be certain 120VAC, 60Hz power has been provided to the primaries

(No Display).

 

of both 801T Transformers. No less than 16VAC should be

 

 

measured on the secondary of either Transformer.

 

 

 

 

Defective transformer.

Replace transformer.

 

 

 

No radio, intercom working.

Faulty Master Station.

Isolate Master Station from installation by removing ribbon cables

(AM/FM indicator on.)

 

from terminal board and wait one minute for timeout. With power on,

 

 

radio should be playing at Master. If no radio, Master is probably

 

 

faulty. If radio plays, reconnect ribbon cables.

 

Installation problem.

Check terminal board for shorted terminals or miswired cables.

 

 

Remove one 6-wire cable at a time to locate faulty line. When radio

 

 

comes on, check speaker connections and run continuity check of

 

 

speaker wiring.

 

Antenna problem.

Check for shorted antenna connection. Remove antenna connector

 

 

from tuner board and touch each pin with metallic object. If radio

 

 

plays, antenna is not functioning; be sure it is installed properly. In

 

 

weak signal areas, an outside antenna may be necessary. Also see

 

 

“Connecting the Radio Antenna”

 

 

 

Low or distorted radio

Incorrect volume setting.

Follow “Setting Program Audio Controls” instructions under

volume.

 

OPERATIONAL CHECKOUT.

 

 

 

Weak and distorted music,

Shorted or mis connected remote

This unit contains a protection device which opens if the audio

chime and intercom audio.

speaker wiring.

amplifier detects an overload condition. If the music, chime and

 

 

intercom audio becomes weak and distorted, remove power from the

 

 

master station for 10 minutes; this will reset the protective device. If

 

 

the audio returns to normal, the remote speaker wiring and remote

 

 

speakers should be checked for bare, shorted and/or mis-connected

 

 

wires. The problem must be found and corrected before the master

 

 

station will properly function.

 

 

 

Low or no intercom volume

Improper operation.

Be sure remote speaker set for MONITOR has its volume control set

from remote speaker in

 

between 1⁄2 and max, and receiving speakers have volume controls

MONITOR mode.

 

set between 1⁄2 and max. Follow “Setting Intercom Volume”

 

 

instructions in OPERATIONAL CHECKOUT.

 

Program and Intercom Volume

Follow these instructions whenever the radio tends to overpower

 

Control adjustment.

transmissions from a remote speaker in the MONITOR mode. These

 

 

instructions will help you get the proper balance between the radio

 

 

and the monitored speaker.

 

 

1. Set system volume control to midpoint.

 

 

2. Set master to CD/TAPE or AUX position.

 

 

3. Adjust volume control for each remote station and speaker in

 

 

master station 3⁄4 position.

 

 

4. Set master to AM or FM and tune to a strong AM or FM station.

 

 

5. Adjust program volume control for a desired listening level.

 

 

6. Increase Intercom volume control setting. Adjust clockwise to

 

 

desired monitor volume.

 

 

 

 

 

-Continued-

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Contents AM/FM RADIO/CD Player Intercom System Model IM-4406 Series Master StationInstallation Table of ContentsContents of Carton Precautions and GuidelinesWiring Specifications Remote Station WiringConnecting the Remote Wiring Mounting the Terminal BoardConnecting Door Speaker Wiring Connecting Volume Control WiringNever USE 8 OHM Stereo Speakers With this System Mounting the Master Station Connecting Power Transformers Mounting the Transformer CoverConnecting the Master Station to the Terminal Board Connecting the Optional Chime Module Connecting the Radio AntennaConnecting Optional Electronic Chime Connecting Optional Accessories Connecting Power to the Optional CP-95 Cassette PlayerMounting and Connecting Optional Door Release Pushbutton Connecting the Memory Back UP BatteryPowering UP the System Securing the Master PanelMaster Station Status Switches Sets the master station Digital Clock Setting Program Audio ControlsSystem Checkout Setting Intercom Volume Setting Internal Intercom Volume ControlSetting the Beep Tone Level Setting the External Audio Source LevelResetting the Microprocessor Diagnostic TestsKEY Display INSTALLER’S Troubleshooting Guide Trouble Possible Cause Possible RemedyMake separate cable IW-6 runs from each Remote Station to Cannot receive radio station Faulty antenna connection Page Two Year Limited Warranty

IM-440 Series specifications

The NuTone IM-440 Series is a highly acclaimed intercom system designed to enhance communication and convenience in both residential and commercial environments. Renowned for its utility and efficiency, this system combines advanced technology with user-friendly features, making it a popular choice for those looking to upgrade their intercom systems.

One of the standout features of the NuTone IM-440 Series is its versatile communication capabilities. The system supports both intercom communication and radio broadcasting, allowing users to not only communicate with different rooms but also listen to music or news throughout the premises. This dual functionality positions the IM-440 as an all-in-one solution for audio entertainment and inter-room communication.

The IM-440 series employs robust technology to ensure clear audio quality. Utilizing advanced circuitry, the system minimizes interference and enhances sound clarity, making conversations more intelligible and enjoyable. This technology is particularly useful in larger homes or commercial spaces where distance can affect sound quality.

Installation is made easy thanks to the IM-440 series' design, which supports a variety of mounting options and is compatible with numerous room types. The user interface is intuitive, featuring a simple-to-use control panel that allows for straightforward navigation and operation. This focus on user experience is evident in the attention to detail in the design, ensuring that even those who are not tech-savvy can operate the system with ease.

Another significant characteristic of the NuTone IM-440 Series is its scalability. The system can be easily expanded to accommodate additional rooms and features, allowing users to customize their intercom setup according to their specific needs. This makes it a future-proof investment that can adapt to changes in living or working environments.

Durability and reliability are also hallmarks of the IM-440 series. Built to withstand the rigors of daily use, the system features high-quality materials that ensure longevity. Additionally, the system's components are engineered to perform consistently over time, providing users with peace of mind that their communication system will be operational when needed.

In summary, the NuTone IM-440 Series stands out for its combination of advanced audio technology, user-friendly design, and scalability. Whether for communication or entertainment, this intercom system offers a compelling solution for those seeking to enhance their indoor audio experience. With its array of features and reliability, the IM-440 Series remains a top choice in intercom systems.
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