Casio QW-2812 User Manual

— 8 —
3-2. CIRCUIT DIAGRAM
✽ 1. No bonding
✽ 2. GND-Kl5: Open (No Soldering)
GND-Kl6: Open (No Soldering)
GND-Kl7: Open (No Soldering)
GND-Kl8: Short (Soldering)
✽ 3. Latch type key
✽ 4. Short (Soldering) (R trimming)
✽ 5. Short (Soldering) (N trimming)
✽ 6.
GNDB is used for the bias on the back of the tip.
✽ 7.
L28~L30 are used as the static drive pins.
✽ 8. Motor drive pins (01, 02) are used
in this module.
✽ 9.
Normal High
✽ 10.
LD2 (Normal Low) is used in this module.
✽ 11.
LD3 (Normal High) is used in this module.
✽ 12. Cc, Crl1, Crl2, Crl3, Rxt3 and Xtal3 are
not used in this module.
LSI
TOTAL 106PINS
BONDING 81PINS
GND VDD2
BAT
VCH VDD3 VC1 VC2
C3
C2C5
XTB
Xtal
L3 - - - - - L38 LC1 - - - LC5
LCD ( 2.8V 1/3b 1/5d )
LD1
S1
VDD1
C1
BD
C8
LL1
Tr1
XT
T1
T2
T3
KI1
KI2
KI3
KI4
KI5
KI6
KI7
KI8
KI9
S2
SCR
SCIN
RP1RP2
Cp
PZ
VDSP
C4
VC3 VC4
Di1
VHF
C6
AC
T4
KC4
KC3
KC2
KC1
R1
R2
VSC
C7
SC
C9
R3
Z
VPM
Di2
R1
Rb
GNDB
S3
S4
SDO SCK CSBSDI
N1
N2
Cxt
Rxt2
Ccp
Cbat
Rbat
Xtal2
ISB
ANT
Rcp
Rxt3
Xtal3
L39 - - - L55
L1 L2
Cc
FET-S
GND4 Asel
Pon P3-2
Hold P14
FET-D
P1
P2
GND3 GND2 P3-1
P4 P5
GND5
P12
P13
GND1
TCO
VCC
P9
P7
Crh1
Crh2
Crh3
Crl1
Crl2
Crl3
CLF1
E'
Cel
EL
INV
LL2
L+
VOUT
L-
GND
CLF2
V+
BACK
FRONT
CT
✽1
✽1
✽10
✽1
✽11
✽1
✽11
✽2
✽2
✽2
✽2
✽3
✽3
✽3
✽3
✽3
✽3
✽9
✽3
✽3
✽5
✽4
✽4
✽4
✽5
✽3
✽6
✽1 ✽1✽1
✽1
✽7
✽8
✽1
✽8
✽1
✽12
✽12
✽12
✽12
✽12
✽12

Casio QW-2812 Specifications

General

Brand	Casio
Model	QW-2812
Category	Watch
Language	English