Casio QW-2387, Service Manual & Parts List

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3-3. CHECKING TERMINALS AND COMPONENTS
Top view of P.C.B. ass’y Bottom view of P.C.B. ass’y
KI3
O1
O2
ANO4
CA
TH
CA
TH
ANO3
KI5
KI8
VDD VDD
N1 N2
VDD VDD
N3 N4
VDD VDD
KI7 KI6
ANO2 CATH ANO1
ANO1
ANO2
KI2
ANO3
VDD
VDD
VDD VDD
XT
XTB
VDD
XT
VDD
VDD
VDD VDD
VDD
VDD
CATH
ANO4
VDD
VDD
VCH
VC1
VC1
VSS3
VSS2
VSS1 VCH
VC2
L
L
L
VSS2
BD
L
VSS2 LD2
LD2
VDD
KI1
KI5
KI5 LD1
LD1
VDD
KI4 O2 O1 KI2 CATH
VSS2
VSS2
VSS2
KI2
KI3
AC
KI4 KI4
LD1
KI1
4. Capacitor/Trimmer
(1001 0950) CT
10. Cushion/6
(7211 0064)
9. Cushion/506
(7211 9631)
Capacitor/Chip C2 Capacitor/Chip
C3
Capacitor/Chip C4
Capacitor/Chip C1
Capacitor/Tantalum
C5
Coil LL1
LED LED2
Transistor Tr2
3a.PCB ass'y
(7640 4665)
Transistor Tr1
Resistor/Chip R1
Resistor/Chip
R3
Resistor/Chip R2
5.Oscillator/Crystal
(7110 0693) Xtal