Checking Terminals And Components - Casio ECW-M300E Service Manual

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CHECKING TERMINALS AND COMPONENTS

GND
KL4
KL2
VSC
OSCILLATOR/CRYSTAL
Short pad for switching modules
KI8-GND: Open
KI7-GND: Open
KI6-GND: Open
SCFIN
SIO_R
TEST
VDD
KI3
VDD2 SCK WP VCC L40
GND
KI1
L3 SD0 L38
L3
L6
KL6
KL7
KI4
VDD2
GND
XT
ANT2 ANT2 ANT2
KI2
ANT2
ANT2 ANT1 ANT1
ANT_C1 ANT_C2 ANT_C3
EXTVCO
ANT2 ANT1
AGC
VCOMON
SCFOUT AGC KL5
KL7
LE
VDD2
VDD2
VDD
VDD
KL8
L5
GND
L4
GND VCH
KI8 GND
KI8
KI7
VCH
VC1
VC2
KI7 GND
VC2
GND
KI6
VC1
VDSP
KI6 GND
VC3
VC4
VDSP
VC4
VC3
VHF
VDD3
GND
VHF
VDD1
KI5
VDD1 VDD3
KI5 GND
GND GND
VPM
AC
GND
L40
VPM
AGC
LL1 GND
LL1
LL1
GND
AC
BD VDD2
XTB
XT
GND GND GND GND GND
GND
DET_C
VR2OUT
LPF_BB
SHRP_C PEAK_C PLL_C2
LPF2QP GND GND
LPF21P
PLL_C1
GND
LPF2QN
LPF21N
VCC
R4C25 R4C25 VR1OUT
L6
L38
IF1MON
SCUT VDD2
L39
LC1 KL6
L40 GND
L40
KI9 KL9
CRO
CRI CRO
VDD2
VSC
GND
SCIN GND
KL2
R6LED GND
BD
VSC
R6LED Q4LED
– 3 –
KI2
GND
2. PCB ASS'Y
SIO_R
(10362210)
L3
L5
VCH
VDSP
L4
GND
L3
KI3
VC3
VC1
KI5
GND KI5
LL1
GND
SENSOR/TILT
TAPE/ADHESIVE 2306
L3 KI1
GND
SD0
SCK
VCC
VCC
WP
WP
GND
VDD2
KL4
GND
Q4LED
SCUT
Q4R3 Q4R3 VDD2
KL1
KL1
KI4
VSC
QW-5117