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CONTENTS

1. SPECIFICATIONS : QW-2285 / 2286

1. SPECIFICATIONS • • • • • • • • • • • • • • • • • • • • • • • • • • 1

2. OPERATION CHART • • • • • • • • • • • • • • • • • • • • • • • • 2

3. DRAWINGS • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 6

3-1. BLOCK DIAGRAM • • • • • • • • • • • • • • • • • • • • • • • • 6

3-2. CHECKING TERMINALS AND COMPONENTS • • • • 7

4. EXPLODED VIEW • • • • • • • • • • • • • • • • • • • • • • • • • • 8

5. PARTS LIST • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 9

6. PRECAUTIONS FOR REPAIR • • • • • • • • • • • • • • • • • • 10

6-1. AC (ALL CLEAR) AND REMOVING OF MODULE • • 10

6-2. ACCURACY CHECKING • • • • • • • • • • • • • • • • • • • 10

Item Detail Item Detail

Battery CR1616 Accuracy ±15sec./month

Battery life Approx. 24 months Accuracy setting system Trimmer capacitor

Current consumption 1.12 µA maximum Accuracy checking See page 10

Alarm system Piezo plate on Back cover Accuracy setting +0.25~+0.35sec./day

Function

QW-2285

• Shock resistant

• Electro-luminescent backlight

Afterglow

• Memory function

Memory capacity: Up to 25 sets of data, each set 

including; Name (8 characters) and telephone

number (12 digits)

Other: Auto-sort

• Day Counter

Automatically counts down the days from the current

date to a target date.

Memory capacity: 5 records (12 character of text)

A mark appears on the display to let you know when

a target date is reached.

• 1/100-second stopwatch

Measuring capacity: 23:59'59.99"

Measuring modes: Elapsed time, split time,

1st-2nd place times

• Dual time

• Daily alarm

• Hourly time signal

• Auto-calendar (to year 2039)

• 12/24-hour formats 

• Regular timekeeping: Hour, minutes, seconds,

am/pm, month, date, day, daylight saving on/off

QW-2286