MODULE NO.
R
REF. NO. S/M-529
MAY 1996
AD-301
QW-1391
SERVICE MANUAL
& PARTS LIST
(WITHOUT PRICE)
CONTENTS
1. SPECIFICATIONS ......................................................................................... 1
2. OPERATION CHART: MODULE QW-1391 ................................................... 2
3. DRAWINGS: MODULE QW-1391 .................................................................. 4
3-1. BLOCK DIGRAM ............................................................................................... 4
3-2. CHECKING TERMINALS AND COMPONENTS ............................................... 5
3-3. ACCURACY SETTING SYSTEM ....................................................................... 5
4. EXPLODED VIEW: MODULE QW-1391 ........................................................ 6
5. PARTS LIST: MODULE QW-1391 ................................................................. 7
6. EXPLODED VIEW: ANALOG BLOCK OF QW-1391 .................................... 8
7. PARTS LIST: ANALOG BLOCK OF QW-1391 ............................................. 9
8. PRECAUTIONS FOR REPAIR: MODULE QW-1391 .................................. 10
8-1. AC (ALL CLEAR) AND REMOVING OF MODULE ......................................... 10
8-2. ACCURACY CHECKING ................................................................................. 10
8-3. BATTERY REPLACEMENT ............................................................................ 10
1. SPECIFICATIONS
Notes: Conditions of battery life.
SR621W (for EL)
· EL backlight is used once (4 seconds) per day ------------------ 2 years
· EL backlight is used twice (8 seconds) per day ---------------- 1.3 years
SR920W (for watch)
· Alarm is used once per day ------------------------------------------- 2 years
Item
Detail
Item
Detail
Battery
SR920W
Accuracy
± 20sec./month
Battery life
Approx. 24 months
Accuracy setting system Pattern cutting (P1 ~ P5)
Current consumption 1.57
µA maximum
Accuracy checking
Refer to page 10
Alarm system
Piezo plate on back cover
Accuracy setting
Unadjustable
Functions
· Electro-luminescent backlight
· Tachymeter
Input range: 0 to 99 km
measuring range: 59 min 59.99 sec, 999 km/h (or mph)
· 1/100 sec. stopwatch
Measuring capacity: 59' 59.99"
Measuring mode: Net time, lap time
Memory capacity: 20 lap time records with lap number
· Countdown alarm
Input range: 1 sec. to 60 min.
unit: 1/10 sec.
· Regular timekeeping
Analog: 2 hands (hour, minute)
Digital: Hr, min, sec, pm, mo, date, day
· Auto-calendar (Pre-programmed until the year 2039)
· 3 daily alarms
· Hourly time signals
· 12/24-hour formats
-- 1 --
2. OPERATION CHART: MODULE QW-1391
-- 2 --
-- 3 --
18C1
15C2
19C2
18C2
17C2
17C1
17C3
18C3
16C3
16C1
16C2
22C2
23C2
23C1
23C3
22C3
21C3
20C3
20C1
20C2
21C2
22C1
21C1
24C3
25C3
26C3
27C3
28C3
29C3
29C2
30C2
30C1
30C3
29C1
11C3
11C1
11C2
14C2
10C2
10C1
14C3
7C3
7C1
7C2
8C2
6C2
6C1
8C1
5C3
4C1
4C2
5C2
3C2
4C3
5C1
6C3
9C1
9C2
2C2
39C1
3C3
1C3
1C1
3C1
40C2
41C3
39C3
40C3
40C1
41C2
2C3
2C1
41C1
37C2
38C1
38C3
38C2
8C3
37C3
37C1
13C1
13C3
14C1
13C2
12C3
12C2
12C1
31C3
15C3
15C1
19C3
10C3
32C2
32C1
33C3
33C2
33C1
32C3
31C1
31C2
36C2
L31
L32
L33
L34
L35
L36
L37
L38
L39
L40
L41
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
LC1
LC3
LC2
L30
L29
L28
L27
L26
L25
L24
L23
L22
L21
L20
L19
L18
L17
L16
L15
L14
L13
L12
L11
35C2
19C1
36C1
36C3
34C3
34C1
35
C3
35C1
25C1
26C2
28C1
26C1
27C1
27C2
25C2
24C2
24C1
28C2
9C3
LC1 LC2 LC3 L1
An. B
O1
O2
T1
T2
T3
T4
P1
P2
P3
P4
P5
KI1
KI2
KI3
KI4
KI5
KI6
AC
VDD
VSS1
VCH VSS2 VC1 VC2 XTB
XT
Xtal
C1
C2
C3
VCCE
RT1
RT2
ENB
VCPE
GND
CIL
ELD
LL2
Di
EL2
EL1
C6
C5
R
ZR
PZ
Tr
LL1
BAT1
BAT2
C4
+
L41 N1 N2 N3 N4
VC1D
VC2D
VSS2D
LD
BD
TOTAL
BONDING
LSI
79 PINS
72 PINS
INV
S1
S2
S3
S4
3. DRAWINGS: MODULE QW-1391
3-1. BLOCK DIAGRAM
-- 4 --