Panasonic KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT Service Manual ▷ View online
42 CIRCUIT BOARD (CORDLESS HANDSET)
42.1. Component View
to JIG
IC3
(RF module)
CLK
(RF clock)
SYRI
SP_TEST1 (-)
RSSI
TP11
(+2.75V)
TP12
(+1.8V)
RXDA
SYEN
SYDA
SYCL
BBIC: 12
(10.368 MHz)
BATTERY (-)
BATTERY (+)
"BATT"
IC1
(BBIC)
TP10
(+4V)
IC2
(SP_amp_IC)
+4V
(IC3-27)
SP_TEST2 (+)
TXDA
+4V
(IC3-6)
to JIG
CN4
C1
C57
IC3
IC2
TP15
C81
C67
C66
C
64
C65
A201
C63
R55
C
69
C62
Q7
C60
C56
C14
C48
C77
C76
D8
D4
D5
C38
C92
C95
C78
C80
C84
C22
C6
C19
C23
C71
C39
C18
C4
C5
BATT
GND
(Black)
C40
D6
Q3
Q4
Q5
C73
R6
D7
C17
C74
C7
R19
R24
R5
R72
R73
C68
C41
C42
C85
C43
C79
C86
C15
C16
C75
R76
TP1
TP10
TP16
TP11
JTAG
TP3
TP4
TP5
TP8
TP13
TP12
L1
TP6
L2
C101
R90
C13
Q1
D1
R80
SP_TEST2
SP_TEST1
REV_TEST2
REV_TEST1
R82
R1
R74
C2
C3
C94
C93
C93
C20
C21
C8
C9
C89
C96
F1
R4
R3
R2
R2
R11
R10
R8
R9
R7
R81
Q2
Q9
R25
R26
R29
C90
C12
C87
C10
C91
C37
C58
C24
C72
L5
L4
R61
R60
R21
R38
R37
R20
R75
C54
TP2
CLK
TP9
C61
R58
R35
R34
R13
R71
R50
R40
R39
R57
R64
R47
J2
J1
J3
J4
R43
R46
UTX(Yellow)
URX(Red)
R63
R12
R52
R36
IC1
IC10
PbF
X1
KX-TCA154RUM/RUT CIRCUIT BOARD (CORDLESS HANDSET) Component View
K
X
-T
C
D
5
40R
U
M
/
/
K
X-
T
T
C
A
154R
U
M
/
/
K
X-
T
T
C
D
540
R
U
T
/
/
K
X-
T
T
C
A
154R
U
T
127
42.2. Flow Solder Side View
MIC
INT
#
9
6
3
MAIL
SP
SW1
SOFT_A
CLEAR
TALK
S1
0
8
5
2
7
4
1
R
LED7
LED4
LED2
LED9
LED1
R48
R15
R14
C35
LED10
LED8
C33
C34
C32
C31
C27
C28
C29
C30
C34
C32
C31
C27
C28
C29
C30
R67
CN2
R68
R69
R70
R59
R62
C55
C47
D9
Q8
R17
R18
C70
C49
C52
D3
C59
C46
C44
C100
X2
R51 R77
R66
R65
IC4
IC5
C45
Q10
Q11
C82
C83
LED6
LED5
IC4
(MIDI-IC)
PbF
IC4
(MIDI-IC)
IC4: 29
(6 MHz)
KX-TCA154RUM/RUT CIRCUIT BOARD (CORDLESS HANDSET) Flow Solder Side View
K
X
-T
C
D
5
40R
U
M
/
/
K
X-
T
T
C
A
154R
U
M
/
/
K
X-
T
T
C
D
540
R
U
T
/
/
K
X-
T
T
C
A
154R
U
T
128
43 CIRCUIT BOARD (CHARGER UNIT)
43.1. Component View
PbF
D1
J1
CIRCUIT BOARD (CHARGER UNIT) Component View
43.2. Flow Solder Side View
PbF
R1
R2
TP4
TP1
TP2
TP3
CIRCUIT BOARD (CHARGER UNIT) Flow Solder Side View
129
KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
M
KXTCD540RUM
KXTCA154RUM
KXTCD540RUT
KXTCA154RUT
KXTCD540RUM
KXTCA154RUM
KXTCD540RUT
KXTCA154RUT
43 CIRCUIT BOARD (CHARGER UNIT)
43.1. Component View
PbF
D1
J1
CIRCUIT BOARD (CHARGER UNIT) Component View
43.2. Flow Solder Side View
PbF
R1
R2
TP4
TP1
TP2
TP3
CIRCUIT BOARD (CHARGER UNIT) Flow Solder Side View
129
KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
M
KXTCD540RUM
KXTCA154RUM
KXTCD540RUT
KXTCA154RUT
KXTCD540RUM
KXTCA154RUM
KXTCD540RUT
KXTCA154RUT
