QW-1737
MODULE NO.
R
REF. NO. S/M-545
FEBRUARY 1997
AW-45L
SERVICE MANUAL
& PARTS LIST
(WITHOUT PRICE)
-- 1 --
Item
Detail
Battery
Watch function battery (SR920W)
Light battery (CR1616)
Battery life
Approx. 3 years
Current consumption
0.89
µA maximum
Alarm system
Piezo plate on Back cover
Accuracy
±30 sec./month
Accuracy setting system
Chip capacitor
Accuracy checking
See page 9
Accuracy setting
Unadjustable
Functions
· Electro-luminescent backlight
· 1/100 sec. stopwatch
Measuring capacity: 59'59.99"
Measuring mode: Net time
· Daily alarm
· Hourly time signals
· Regular timekeeping:
Analog: 2 hands (hour, minute)
Digital: Hr, min, sec, pm, mo, date, day
· Auto-calendar (Set at 28 days for February)
· 12/24-hour formats
· Dual time
CONTENTS
1. SPECIFICATIONS ......................................................................................... 1
2. OPERATION CHART: MODULE QW-1737 .................................................. 2
3. DRAWINGS: MODULE QW-1737
3-1. BLOCK DIAGRAM ............................................................................................
3
3-2. CHECKING TERMINALS AND COMPONENTS: MODULE QW-1737 ............
4
4. EXPLODED VIEW: MODULE QW-1737 ....................................................... 5
5. PARTS LIST: MODULE QW-1737 ................................................................ 6
6. EXPLODED VIEW: ANALOG BLOCK OF QW-1737 ................................... 7
7. PARTS LIST: ANALOG BLOCK OF QW-1737 ............................................ 8
8. PRECAUTIONS FOR REPAIR: MODULE QW-1737
8-1. AC (ALL CLEAR) AND REMOVING OF MODULE ..........................................
9
8-2. ACCURACY CHECKING ..................................................................................
9
8-3. TAPPING SCREWS ........................................................................................
10
8-4. BATTERY REPLACEMENT ...........................................................................
10
8-5. HOW TO REMOVE HANDS ............................................................................
11
1. SPECIFICATIONS
-- 2 --
2. OPERATION CHART: MODULE QW-1737
-- 3 --
LCZ
L17
L16
L15
L14
L13
L12
L11
L10
L9
L8
L7
L6
L5
L4
L3
L2
L1
LCY
LCX
3. DRAWINGS: MODULE QW-1737
3-1. BLOCK DIAGRAM
L C D
T1
T2
T3
T4
LCX
02A
01A
p2
p1
p2
p2
p2
p3
p4
Pad 1
p4
p5
p5
p5
p5
p1. LCD is shown above.
p2. Not used
p3. Chip capacitor selected.
p4. Short pad
p5. Not used
Pad 2
p4
Pad 3
p2
01B
02B
VDD
S1
XT
XTB
VSS1
VSS2 VCH BD
PZT
Tr1
C2
BAT1
C1
Xtal
An.B
S2
S4
S1
C3
TE
Tr2
C4
C5
R1
R2
R3
D
S
G
FET
+
SL
BAT2
EL
TB
SE
Tns
SF
PE
PF
L
VDDA
VC
VCC
S2B
S2A
S4
AC
LCY LCZ
L1
L17
C.B.
TOTAL
BONDING
43PINS
38PINS
Pad 1
Short
Pad 2
Open
Pad 3
Short
-- 4 --
VDD
S2A
S1
VDD
VDD
VC
VCC
VSS2
VSS2
SL2
(VDD)
SL2
(VDD)
L
01
01
02
02
S4
SL
S2A
S1
S4
SL
VDD
VDD
AC
SL1
SL1
SF
SL1
SL2
SL2
SE
SL2
L
L
G
(SL1)
SL2
SF
SF(TB)
TB
(SF)
TE
(SL2)
PE
PE
PF
(VBAT2)
S
(VBAT2)
VBAT2
VBAT2
VBAT2
VDD
VDD
VCH
01B
02B
VDD
D
D
BD
VSS1
VSS1(1)
XT
XT
XTB
SE
SE
2. P.C.B. with
components
(7240 9830)
8. Chip resistor
(2791 1684)
R2
5. Coil
(7020 0481)
L
23. Spacer 1323
(7233 1771)
6. Transformer
(7101 5854)
Tns
24. Adhesive tape 1416
(7229 0623)
4. Transistor
(7101 5707)
Tr2
3. Transistor
(7101 1151)
Tr1
7. Chip capacitor
(7103 4446)
C4
3-2. CHECKING TERMINALS AND COMPONENTS: MODULE QW-1737
Top view of P.C.B. ass'y
Bottom view of P.C.B. ass'y