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QW-1492
MODULE NO.
R
REF. NO. S/M-550
APRIL 1997
VDB-3000
SERVICE MANUAL
& PARTS LIST
(WITHOUT PRICE)
INDEX


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1. SPECIFICATIONS: QW-1492
CONTENTS
1. SPECIFICATIONS: QW-1492 ........................................................................ 1
2. OPERATION CHART: QW-1492 ................................................................... 2
3. DRAWINGS
3-1. BLOCK DIAGRAMS: QW-1492 ........................................................................
7
3-2. CHECKING TERMINALS AND COMPONENTS: QW-1492 ............................
8
4. EXPLODED VIEW: QW-1492 ........................................................................ 9
5. PARTS LIST: QW-1492 ............................................................................... 10
6. PRECAUTIONS FOR REPAIR: QW-1492
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE ........................................
11
6-2. ACCURACY CHECKING ................................................................................
11
Item
Detail
Battery
CR2016
Battery life
Approx. 2.0 years
Current consumption
3.1
µA maximum
Alarm system
Piezo plate on Back cover
Accuracy
±15 sec./month
Accuracy setting system Trimmer capacitor
Accuracy checking
See page 11
Accuracy setting
+0.25 ~ +0.35 sec./day
Functions
· Electro-luminescent backlight
· Touch Screen
· Telememo
Memory capacity: 200 entries maximum (name and one number per item)
Fields: name (up to 8 characters), telephone number;
pager/cell phone number;
fax number (two 12-digit number fields each), and e-mail address
(up to 46 characters)
Other: Auto sort function, remaining memory display, index search
· URL memo
Memory capacity: 50 entries maximum
Fields: Home page title (up to 16 characters) and
URL (up to 78 characters)
· 8-digit calculator
· 1/100 sec. stopwatch
Measuring capacity: 23:59'59.99"
Measuring mode: Net time, split time, 1st-2nd place time
· Daily alarm
· Hourly time signals
· Regular timekeeping:
Hr, min, sec, pm, yr, mo, date, day
· Auto-Calendar (pre-programmed until the year 2039)
· 12/24-hour formats


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2. OPERATION CHART: QW-1492


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