Casio GW-300J, Service Manual & Parts List, Page: 18 / 30

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3-2. CIRCUIT DIAGRAM
MODULE QW2609/2639
LSI
T
O
T
A
L 106PINS
BONDING 101PINS
GND
V
DD2
BA
T
VCH
V
DD3
V
C1
VC2
C3
C2
C5
XTB
Xtal
L1 - - - - L55
LC1 - - - LC5
CT
LCD ( 2.8V 1/3b 1/5d )
LD1
SA 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
INV
LL2
VCC
✽
1
R3
✽
1
✽
1
Z
VPM
Di2
R1
Rb
GNDB
✽
7
✽
1
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
✽
12
DEC2
SK
KS
✽
2
✽
2
✽
6
✽
6
✽
4
✽
4
✽
4
✽
3
✽
3
✽
3
✽
3
✽
3
✽
5
✽
3
✽
9
✽
10
✽
11
✽
3
✽
2
Rel
ENB GND RT
1
RT
2
NC NC NC
ELD CIL
EL
BACK FRONT
✽
1. No
bonding
✽
2.
GND-KI7:
Open (No Soldering)
KC1-KI6:
Open (No Soldering)
KC3-KI6:
Open (No 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 terminals.
✽
9. Normal
Low
✽
10.
LD2 (Normal Low) is used in this module.
✽
1
1
.
KC3 is used in this module.
✽
12.
Rant1 are not used in this module.