Casio WVA-300D User Manual

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3-2. CIRCUIT DIAGRAM
LSI
TOTAL 123PINS
BONDING 81PINS
LCD
INV
IC
✽ 1. No bonding ✽ 2. Short (Soldering) (Switching function)
KI6: Short (Soldering) KI7: Open (No Soldering) KI8: Open (No Soldering)
✽ 3. Latch Type Key ✽ 4. Short (Soldering) ✽ 5. Inclination switch ✽ 6. No mounted in this module.
GND VDD2
BAT
VCH VDD3
VC1 VC2
C1
C3C5
XTB
Xtal1
L1 L28
L29 L61
LC1 SDS SDCLC5
CT
LD1
S1
S2
S3
VDD1
C2
BD1
C8
LL1
Tr 1
XT
T1 T2 T3
KI1
KI2 KI3 KI4 KI5 KI6 KI7 KI8
✽3 ✽3 ✽3
KI9
EMP
S4
SCR
SCIN
RP1RP2
Cp
PZ
VDSP
C4
VC3 VC4
Di1
V_TQ
C7
SDA SCL SCUT
AC
T4
✽2
✽2
D0
KC4 KC3 KC2✽1 KC1
R1 R2
VSC
C6
SC
C9
CLF1
E'
Cel
EL
LL2
L+ VOUT L- GND
CLF2
V+
BACK FRONT
✽4 ✽4 ✽4
O3
✽1
SL
PON
O1 O2
O4
✽1 ✽1
T5
R3
✽3
✽3
✽3 ✽3 ✽3
LD2
VC5 VC6
✽1 ✽1
✽1 ✽1
Z
SK
✽2
✽1
VPM
RPM
C21
PON REG
AGC
VSM0 VSM1
TCOGND
HOLD
VCC
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10
9
C14
C11C12C13
R7
C17
C18 C20
C22
R5
Xtal2
R3
ANT
R2
R4
Di2
R1
An.B
KS
✽5
✽1
C19
R6
Rb
GNDB
✽6
Rpd

Casio WVA-300D Specifications

General

Brand	Casio
Model	WVA-300D
Category	Watch
Language	English