Checking Terminals And Components - Casio QW-2387 Service Manual & Parts List

3-3. CHECKING TERMINALS AND COMPONENTS

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