Checking Terminals And Components - Casio QW-2983 Service Manual

2-2. CHECKING TERMINALS AND COMPONENTS

Short pad for R trimming
Short pad for N trimming
CAPACITOR/TRIMMER
OSCILLATOR/CRYSTAL
CUSHION 466-A
TAPE/ADHESIVE 2306
KI1
GND R3
GND R2
GND R1
SCR SCIN
2. PCB ASS'Y
VOUT
GND SCIN
(76409253)
GND SCIN
GND VSC
GND N2
GND N1
R1 BD
KI4
VSC
VSC
L+ GND
L-
VOUT
L-
L+
CLF2 CLF1
VCH
FET-S
VDD2 GND
VCH GND
VDD1 GND
KI5
GND KI8
GND VDSP
LL1
GND VDD3
K18
VC2 VC1 VDSP
GND
VC1
GND
K12
XT
KI3
XTB
XT
AC
VDD2
KI5
KI8 GND
GND GND
KI7 GND
GNDB KI9
KI6 KC3
KI6 KC1
VC3 VC4
GND
VHF GND
KI3
VDD2
GND
LD1
GND
CLF2
CLF1
LL1
VDD2
LL1 GND
P1
P14
P2
GND
FET-D P2
GND
Rcp GND
Kl1
VCC
P9
P4 P5
P5
VCC VDD2
P13 P12
Rcp
Rxt2 P7
Rxt3
Rxt3
P7
Rxt2
Kl4
R1
GND
VSC
VDD2 VDD2
VDD2
LL1
R1
— 3 —
Short pad for switching modules
KI7-GND: Short (Soldering)
KI6-KC3: Open (No Soldering)
KI6-KC1: Open (No Soldering)
P7