Oregon Scientific JM889N User manual

Jumbo RF Clock

with Indoor Thermometer

Model: JM889N / JM889NU

User Manual

JM889N English Cover R2 8/17/04, 3:28 PM1

Oregon ScientificTM Jumbo RF Clock

with Indoor Thermometer

(JM889N / JM889NU)

User Manual

TABLE OF CONTENTS

Introduction ........................................................................ 2

Key features ....................................................................... 2

Front view ........................................................................ 2

Back view ........................................................................ 3

LCD display symbols ....................................................... 3

Safety and care instructions ............................................. 4

Safety precautions ........................................................... 4

Caring for your product .................................................... 4

Getting started ................................................................... 4

Unpacking the product ..................................................... 4

Batteries .......................................................................... 5

Placement of unit ............................................................. 5

Indoor temperature display .............................................. 6

Toggling between seconds/day-of-week display ............. 6

Radio reception .................................................................. 6

Radio reception description ............................................. 6

Enabling/disabling radio reception ................................... 7

To set the clock manually ................................................. 7

Language options ............................................................ 8

Alarm functions .................................................................. 8

Basic functions ................................................................ 8

Displaying alarm time ...................................................... 8

Adjusting the alarm time .................................................. 9

Activating / deactivating the alarm ................................... 9

Reset hole ........................................................................... 9

Troubleshooting guide .................................................... 10

Specifications ................................................................... 11

Warnings ........................................................................... 11

About Oregon Scientific .................................................. 12

EC-Declaration of conformity.......................................... 13

JM889N_NU_English R2 8/17/04, 3:28 PM1

INTRODUCTION

Thank you for selecting the Oregon ScientificTM Jumbo RF

Clock with Indoor Thermometer as your product of choice. This

device is designed to give you many years of reliable service,

including the following conveniences:

• Radio-Controlled Calendar Clock*

• Indoor Temperature Display

• Daily Alarm

*Automatically synchronizes the current time and date when

itisbroughtwithinrangeoftheradiosignalMSF60generated

fromRugby,England(modelJM889NU)orDCF77 generated

fromFrankfurt,GermanyforCentralEurope(modelJM889N).

Inadditiontoproviding step-by-step instructions for this product,

this manual contains important safety and care information.

Read the manual thoroughly, and keep it in a safe place in case

you need to refer to it.

KEY FEATURES

1. Main LCD Display

Displays current time and RF signal reception indication

2. Seconds/Day-of-Week Display

Select between seconds or day-of-week display

3. Current Date/Alarm Time Display

Select between current date or alarm time display

4. Indoor Temperature Display

Displays currently monitored indoor temperature

Front View

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Back View

LCD Display Symbols

Icon Description Explanation

Radio Reception

Signal

Indicates the condition of radio reception.

Low Battery Appears when power is low.

Alarm-on Appears when alarm is activated.

Alarm Time

Indicator

Appears when alarm time is displayed.

5. Wall-Mount Recess Hole

For mounting the unit to a wall

6. Alarm Button

Display and adjust alarm time

7. Clock Button

Manually adjust current time and date

8. Reset Hole

Returns all settings to default values.

9. Button

Used to adjust settings down one notch or to enable/disable

RF radio reception

10. Button

Used to adjust settings up one notch or to enable/disable

RF radio reception

11. Battery Compartment

The unit uses 2 AA 1.5V batteries for power.

12. Table Stand

Can be pulled out and used to stand the unit on a flat surface

JM889N_NU_English R2 8/17/04, 3:28 PM3

SAFETY AND CARE INSTRUCTIONS

Safety Precautions

Please observe the following safety precautions when setting

up and using this product.

• LCD panel - The LCD panel is made of glass, and may

break if the unit is dropped or impacted.

• Heat sources - Keep the product away from heat sources

such as radiators, stoves, heaters, and other

heat-generating products.

• Water and moisture - Do not use the product in or near

water or in high moisture areas such as a bathroom.

Caring for your Product

To ensure you receive the maximum benefit from using this

product, please observe the following guidelines.

• Cleaning - Use a damp cloth. Do not use liquid cleaning

agents, benzene, thinner, or aerosols.

• Ventilation - The vents and other openings are designed

for ventilation, and should not be blocked or covered.

Blocking the vents can cause the product to overheat, and

can damage the unit.

• Repair - Do not attempt to repair the product or modify the

circuitry by yourself. Contact the retailer or a qualified

repairman if the product requires servicing. Only use

replacement parts that are recommended by the

manufacturer.

• Do not scratch hard objects against the LCD display as this

may cause damage.

GETTING STARTED

Unpacking the product

When you unpack your clock, make sure to keep all the packing

materials in a safe place, in case you need to later transport or

return it for servicing.

In the box, you will find:

Clock unit Batteries User manual

JM889N_NU_English R2 8/17/04, 3:28 PM4

Batteries

When using the product for the first time, please note

that the batteries have already been installed in the unit.

To operate, locate the clear plastic battery tab inside the

battery compartment and remove it.

To load the batteries:

Diagram Instructions

1. Locate the battery compartment.

2. Install the batteries by matching the correct

polarity.Alwaysusethe correct battery type

(2 UM-3 AA-sized 1.5V batteries).

Warning: Reversing the polarity may

damage the product.

Replace the batteries whenever the weak battery

mark ( ) is shown, the display is dim, or the display does not

illuminate when the power is on. Replace all the batteries at the

same time - it is dangerous to mix old and new batteries.

Contact your local waste disposal authority for instructions on

how to dispose of used batteries. Used batteries can be

harmful to the environment, and should not be thrown out with

household trash.

Placement of Unit

You can either mount the main unit on a wall or make it stand

on a flat surface.

Method Instruction Diagram

Table

Stand

The unit is already equipped with a Table

Stand. Simply pull out the Table Stand

and rest the main unit on a flat surface.

Wall

Mount The main unit can be mounted onto a wall

using a No. 6 screw (3.0mm).

a) Position and nail the screw into the

place where you would like to hang

your main unit.

b) Leave ample space between the wall

and the screw head while testing to

make sure the nail is secure.

c) Fit the unit’s Wall-Mount Recess Hole

onto the screw head.

NOTE

JM889N_NU_English R2 8/17/04, 3:28 PM5

Indoor Temperature Display

Soon after the clear plastic battery tab has been removed, the

unit immediately reads and displays the surrounding indoor

temperature.

Toggling between Seconds/Day-of-Week Display

To toggle between displaying seconds or day-of-week on the

LCD screen, press CLOCK.

RADIO RECEPTION

This product is designed to synchronize its calendar clock

automatically once it is brought within range of the radio signal.

When the unit is receiving the signal, the Radio Reception

symbol with start to blink. Generally, complete reception takes

around 2 to 10 minutes, depending on the strength of the signal.

Radio Reception Description

Reception can be affected by a number of factors. For

best reception, place the device away from metal objects and

electrical appliances. Other causes for signal interference

include electrical transmission towers, steel reinforced

construction, and metal siding. Reception is ideal when placed

near a window.

Even though there are areas that may have more difficulty in

receiving a signal, the Atomic Clock contains accurate quartz

movement and will retain precise timing if the signal is missed

on a rare occasion.

Strong reception of radio clock signal.

Weak reception of radio clock signal.

No reception of the radio clock signal.

Receiving the radio clock signal.

Radio Reception is disabled.

NOTE

JM889N_NU_English R2 8/17/04, 3:28 PM6

Enabling/Disabling Radio Reception

To manually disable the reception of the RF signal,

press and hold [UP ] and [DOWN ]simultaneously for

2 seconds until the Radio Reception symbol completely

disappears.

To enable the reception again, press and hold [UP ] and

[DOWN ]simultaneouslyfor 2seconds.TheRadio Reception

symbol will blink and the unit will search for the RF*¤ignal

automatically.

TO SET THE CLOCK MANUALLY

To adjust the clock settings manually without automatic

RF synchronization, remember to disable the Radio Reception

first. Press once or press and hold [UP ]or [DOWN ]

to adjust the value of each setting.

NOTE

Diagram Instructions

1. Press and hold the CLOCK button for 2 seconds.

2. Adjust the current month. Press CLOCK when done.

Diagram Instructions

3. Adjust the current date. Press CLOCK when done.

4. Choose the language displayed for the day-of-week.

Press CLOCK when done.

5. Choose the current day-of-week. Press CLOCK when

done.

6. Adjust the current hour. Press CLOCK when done.

7. Adjust the current minute. Press CLOCK when done.

8. LCD Display returns to normal clock operation.

JM889N_NU_English R2 8/17/04, 3:28 PM7

Language Options

Themain unitcandisplaythe week-

day in five different selectable lan-

guages.

ALARM FUNCTIONS

Basic Functions

Your product can also be used as

an alarm clock.

1. When the alarm sounds, you

can turn it off by pressing

ALARM.

2. The alarm will automatically

stop ringing after 1 minute.

But after 8 minutes, the alarm

will sound again unless

ALARM is pressed.

Symbol Language

English

German

French

Italian

Spanish

Displaying Alarm Time

By default, the unit’s LCD screen displays the current date and

month. To display the alarm time instead:

1. LCD screen displays the current date and month.

2. Press the ALARM button.

3. The currently set Alarm Time is now displayed.

Diagram Instructions

JM889N_NU_English R2 8/17/04, 3:28 PM8

Adjusting the Alarm Time

Make sure that the Alarm Time is currently displayed on the

LCD screen.

1. Press and hold the ALARM button for 2 seconds.

2. Adjust the hour of the Alarm Time. Press ALARM when

done.

3. Adjust the minute of the Alarm Time. Press ALARM

when done.

4. Adjusted Alarm Time now displayed.

Activating / Deactivating the Alarm

Diagram Instructions

1. LCD screen displays Alarm Time. If is displayed,

the alarm is enabled. Otherwise it is disabled.

2. Press ALARM button to enable or disable the alarm.

RESET HOLE

If the clock behaves strangely or

stops responding, insert and press

a blunt stylus into the clock’s Reset

Hole. The clock will then be reset

to its original factory setting.

JM889N_NU_English R2 8/17/04, 3:28 PM9

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