Oregon Scientific JM828CD Manual de usuario

Wide-Screen

Millennium RF Countdown Clock

Model: JM828CD

User’s Manual

INTRODUCTION

Congratulations on your purchase of Jumbo Display Millen-

nium RF Countdown Clock (JM828CD).

The JM828CD is unique in that it has a long-range countdown

timer function. Ideal for the coming millennium, this device is

also an ideal reminder for any future date of importance. Special

dates such as graduations, birthdays or special events, can be set

and the alarm will activate on that day.

In addition the JM828CD is a clock calendar with two daily alarm

functions. A radio frequency (RF) controlled timepiece, JM828CD

can maintain superbly accurate time. It features a jumbo-size,

2-line, liquid crystal display (LCD) and has a bar graph that

shows the amount of time left to a set target date.

DECRIPTION OF PARTS

JUMBO LCD

A1 Clock / Alarm Display: current time, Alarm 1, Alarm 2

A2 Date / Timer Display: current date, start date, target

date, remaining time

A3 Bar-Graph Display: time remaining to target date

RADIO RECEPTION SIGNAL

Indicates the condition of radio reception

ALARM ON ICON [ ]

Appears when the alarm is activated

SNOOZE KEY

Enables snooze function

CLOCK/ALARM KEY

• Switches between clock and alarm-time displays

• Sets current time, Alarm 1, and Alarm 2

MODE KEY

• Switches between calendar mode, start mode, target

date mode, and countdown mode

• Sets target date for countdown timer

UP ( ) DOWN ( ) KEY

• Sets the increase or decrease in a display value

• Enables and disables RF function

ON/OFF KEY

• Enables and disables alarm function

• Enables and disables Bar Chart

• Enables and disables countdown function

BATTERY COMPARTMENT

Accommodates four UM-3 or “AA” size alkaline batteries

ALARM

Speaker vents for alarm sound

TABLE STAND

For mounting the unit on a flat horizontal surface

WALL-MOUNT HOLE

For mounting the unit on a wall

RESET SLOT

Resets the unit by returning all setting to their default

values

INSTALLING OR REPLACING

BATTERIES

This unit uses two UM-3 or “AA” size 1.5V batteries.

To insert batteries:

1. Pull the door tab and click open the door.

2. Insert the batteries strictly according to the polarities shown

therein.

3. Replace the door until it clicks in place.

[ ] Replace the batteries when the battery low indicator lights

up.

Note: Immediately after inserting the batteries, all the

segments on the LCD screen will light up briefly before

displaying the time and calendar modes.

Ifnot disposed ofproperly, batteries canbe harm-

ful. Protect the environment by taking exhausted

batteries to authorized disposal stations.

ABOUT RADIO RECEPTION

The JM828CD is designed to automatically synchronize its cal-

endar clock once it is brought within range of the Frankfurt

DCF77 radio signal [UK version, Rugby (radio signal MSF)].

When the JM828CD is within range, the radio-control mecha-

nism will override all manual settings.

Upon receiving a radio signal, the Radio Reception Icon will start

to blink. Generally, complete reception take 2 to 10 minutes

depending on the strength of the radio signal.

When the reception is complete, the Radio Reception Icon will

stop blinking.

For better reception, place the clock away from metal objects and

electrical appliances to minimize interference.

Strong

Weak

No reception

Receiving signal

If you wish to disable the auto-reception feature, press the

button for three seconds. The radio reception signal [ ] will

disappear. The unit will not respond to radio signals.

To enable the feature again, press the button for three seconds.

The radio reception signal [ ] will start blinking to initiate

reception automatically.

HOW TO USE THE JM828CD

NAVIGATIONGBETWEENCLOCK/ALARMDISPLAYS

PressCLOCK/ALARM KEY to alternate the top line between the

clock and two alarm displays.

Current time and date

Alarm 1 display

Alarm 2 display

Note: The UK version will feature a 12-hour A.M. / P. M.

time display format.

Note: If no alarm time is entered, the device will automati-

cally return to the calendar clock display after about 8

seconds.

3. Enter the hour using and .

4. Press CLOCK/ALARM KEY. The minute digits will blink.

5. Enter the minutes using and .

6. Press CLOCK/ALARM KEY to exit. The alarm ON icon

[] , for the alarm chosen, will be displayed to indicate the

alarm is now set and will activate at the indicated time.

To set the second alarm, press CLOCK/ALARM KEY to enter

Alarm 2 Display. Proceed in the same fashion as mentioned

above.

When either alarm is set, it will activate at the time indicated.

The four-step crescendo function results in the alarm starting off

gently and stepping up the intensity at 20-second intervals.

Without interruption, it will alarm for a total of two minutes.

If the alternate alarm activates while the first alarm is sounding,

the first alarm will be automatically disabled.

DISABLING THE ALARM

At any time either Alarm 1 or Alarm 2 can be disabled.

Press CLOCK/ALARM KEY. Enter Alarm 1 Display or press

again to enter Alarm 2 Display.

Press AL ON/OFF. The respective alarm on icon will disappear.

Now, the alarm is not set.

HOW TO STOP AN ALARM

An alarm can be stopped but still set so that it will activate at the

same time the following day.

To stop an alarm, press AL ON/OFF. The alarm will be stopped

and will activate again at the same time the next day.

However, if the SNOOZE button is pressed, the SNOOZE

function will be triggered. The alarm will stop for eight minutes

before activates again.

NAVIGATING BETWEEN CURRENT

DATE COUNTDOWN TIME DISPLAYS

Press [MODE] to alternate between the current date and various

countdown timer displays on the second line.

The Current Date Calendar Display

The current date is in day, month, year, and day-of-the-week

format.

MANUALLY SETTING THE TIME AND

CURRENT DATE

If the JM828CD is taken outside of the range of Frankfurt DCF77

radio signal [UK version, Rugby (radio signal MSF)], it will need

to be manually set.

To manually set the clock:

1. Enter current-time display.

2. Press and hold CLOCK/ALARM KEY for two seconds, the

hours will flash.

3. Press or to enter the appropriate hour digit. Each press

will increase the digits by one. Holding down the key, the

digits will change in increments of five.

4. Press CLOCK/ALARM KEY, to advance the minute digits.

5. Again, press or key to enter the appropriate minute

digits.

6. Press CLOCK/ALARM KEY to confirm and advance to the

Calendar Setting display.

7. Proceed in the same manner to set the year, month, current

date, and finally the abbreviated day-of-the-week display in

one of 5 languages.

8. When complete, press CLOCK/ALARM KEY to return to the

current time Node.

Note: For the language display, you can choose among

English (E), German (D), French (F), Italian (I) and Spanish

(S). Day-of-week is in the usual sequence of Monday through

Sunday.

HOW TO SET THE ALARMS

The JM828CD has two alarms, Alarm 1 and Alarm 2. They can be

invoked together or independently. Alarm icons in the upper left

corner of the display indicate if Alarm 1 or Alarm 2 is active. No

icon indicates that the alarm has not been set.

To set an alarm:

1. Press CLOCK/ALARM KEY once to select Alarm 1 Display.

Press again to select Alarm 2 Display. The last selected time of

the alarm will be displayed. If you have never set the alarm

before, the time will be displayed as —:— .

2. Press and hold CLOCK/ALARM KEY for two seconds.

The Start Date Display

Set the start date to any date after January 1st, 1998.

The Target Date Display

The target date shows the date that has been chosen for the target

of the countdown alarm.

Remaining Time [day / hour / minute] Display

The remaining time to a targeted date is shown in the number of

days / hours / and minutes.

Remaining Time [seconds] Display

The remaining time to a targeted date is shown in the number of

seconds.

In a display other than the Current Date Calendar Display, if no

key is pressed for about 8 seconds, the display will automatically

return to the calendar display.

SETTING THE DATE ALARM

The JM828CD is preset to countdown to the Year 2000 /1/1/

2000)

To change the countdown date:

1. In the Target Date Display, press and hold MODE for about 2

seconds. The year will flash. Use or to enter the appro-

priate year.

2. Press MODE, the month digits will flash. Use or to

enter the appropriate month.

3. Press MODE, the day digits will flash. Use or to enter

the appropriate day.

4. Press MODE to confirm and exit to other displays.

Note: The Date Alarm will sound regardless of whether the

daily alarm icons are displayed.

When the alarm is sounding, to turn off, press ON/OFF.

ABOUT THE BAR GRAPH

At the bottom of the LCD is a bar graph. This graph visually

shows the amount of time remaining between the target date and

the start date. When a target date is first set the graph will show

that 100% [FIG A] of time still remains. When half of the time has

passed, the graph will show 50% [FIG B]. As the target date

approaches, the remaining bar graph gets smaller.

Note: If the Start Date is disabled, the bar graph will also be

disabled. To enable the bar graph, both the target date and

the start date must be set.

FIG A FIG B

MAINTENANCE

When handled properly, this unit is engineered to give you years

of satisfactory service. Here are a few product care instructions:

1. Do not immerse the unit in water. If the unit comes in contact

with water, dry it immediately with a soft lint-free cloth.

2. Do not clean the unit with abrasive or corrosive materials.

Abrasive cleaning agents may scratch the plastic parts and

corrode the electronic circuit.

3. Do not subject the unit to excessive: force, shock, dust,

temperature, or humidity. Such treatment may result in mal-

function, a shorter electronic life span, damaged batteries, or

distorted parts.

4. Do not tamper with the unit’s internal components. Doing so

will terminate the unit’s warranty and may cause damage. The

unit contains no user-serviceable parts.

5. Only use new batteries as specified in this instruction manual.

Do not mix new and old batteries as the old batteries may leak.

6. Read this instruction manual thoroughly before operating

the unit.

SPECIFICATIONS

Operating Temperature : -5°C to 50°C

(23°F to 122°F)

Clock Functions

Radio Control : Auto synchronize current time and

date by Radio signal generated from

Germany DCF77 (UK MSF)

Calendar : Day-of the-week in English or

German, current date, month

Clock Time : 24-hour format

(UK version 12-hour format)

Snooze : 8-minute snooze

Alarm Duration : 2-minute crescendo

Accuracy : +/-0.5 second/day

(when RF is disabled)

General Specification

Battery Type : 2 Alkaline UM-3 or “AA” size

1.5V batteries

Unit Dimension : 215 x 245 x 35 mm (H x W x D)

Unit Weight : Approx. 660g

(not including batteries)

CAUTION

— The content of this manual is subject to change without

further notice.

— Due to printing limitation, the displays shown in this

manual may differ from the actual display.

— The manufacturer and its suppliers held no

responsibility to you or any other person for any

damage expenses, lost profits, or any other claim arise

by using this product.

— The contents of this manual may not be reproduced

without the permission of the manufacturer.

Instruction Manual

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Mode D'emploi

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Bedienungsanleitung

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Manuale di Istruzioni

****

Instrucciones de Funcionamiento

Model : JM828CD

Wide-Screen

Millennium RF Countdown Clock

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