Casio WVA-400D, Service Manual And Parts List, Page: 12 / 22

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3-2. CIRCUIT DIAGRAM: MODULE QW-2727
LSI
T
O
T
A
L
106PINS
BONDING 84PINS
GND
V
DD2
BA
T
Di2
VCH
V
DD3
V
C1
VC2
C3
C2
C5
XTB
L4 - - - L31
L
C1 - - - LC5
LCD ( 2.8V 1/3b 1/5d )
LD1
S2
VDD1
C1
BD
C8
LL1
Tr
1
XT T1 T2 T3 KI1 KI2 KI3 KI4 KI5 KI6 KI7 KI8 KI9
S1
SCR SCIN
RP1
RP2
Cp
PZ
VDSP
C4
VC3
V
C4
Di1
VHF
C6
SDO
S
CK
CSB
AC T4
KC4 KC3 KC2 KC1
R1 R2
VSC
C7
SC
C9
✽
1
R3
✽
1
Z
VPM
R1
Rb
GNDB
✽
7
S4 S3
SDI
✽
1
N1 N2
✽
8
Creg
IN1 IN2
PON
OUT2
REG
OUT1
AGC
FIL1 FIL2
TCO
REC DEC1 GND
HOLD
VCC
1 2 3
16 15 14
4 5 6 7 8
13 12 11 10
9
Cxt
Crl1
Rxt2
Ccp9
Cf12 Cagc
Cbat
Rbat
Xtal2
IC
ANT
Rant2
Cf13
Rcp
Rxt3
Xtal3
Crl2
Crl3
Crh3
Crh2
Crh1
Rant1
Rs Rd
Cc
FET
Rpd
Rant3
✽
14
DEC2
SK
KS
✽
2
✽
6
✽
6
✽
4
✽
4
✽
4
✽
3
✽
3
✽
3
✽
3
✽
3
✽
5
✽
3
✽
10
✽
11
✽
12
✽
3
An.B1
Tr
2
LED2
LED1
R2
R3
LED3
R4
✽
2
✽
2
L32 - - L36
L37 - - - L55
L1
L2
L3
An.B2
✽
3
✽
3
✽
9
✽
9
✽
9
✽
1
✽
13
✽
14
✽
14
✽
14
✽
14
✽
14
✽
14
✽
14
✽
14
✽
14
✽
14
RPM
Tr
3
✽
14
✽
14
✽
1. No
bonding
✽
2. GND-KI6:
Open
(No
Soldering)
GND-KI7:
Open
(No
Soldering)
GND-KI8:
Short
(Soldering)
✽
3.
Latch type key
✽
4.
Short (Soldering) (R trimming)
✽
5. Inclination
sensor
✽
6. Short
(Soldering)
(N
trimming)
✽
7.
GNDB is used for the bias on the back of the tip.
✽
8.
L28~L30 are used as static drive pins.
✽
9.
Motor drive pins are used in this module (01, 02, 03).
✽
10. Normal
Low
✽
1
1
.
LD2 (Normal Low) is used in this module.
✽
12.
LD3 (Normal High) is used in this module.
✽
13.
Not shorted (Soldering) in this module.
✽
14.
Rant1, Rant3, FET
, Rs, Rd, Cc, Crl1, Crl2, Crl3, Rxt3,
Xtal3, Rant2, and Rpd are not used in this module.
CT
Xtal