Read Panasonic KX-T7735RU / KX-T7735RUPP Service Manual online
1.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED
“PbF” is marked near the PCB’s number to show that Pb free solder is used. (See the figure below.)
E4
B1
Q109
A9
K2
B10
B7
B8
R
T
B4
H L
~
~
SP1
SP2
AG1
K1
B5 E5
SPN
G2
M3
AG2
+6V
D5V
E6
Q102
V1
A6
AG
IC7
DG
A5
B8
B3
A8
D31
D33
D32
PSUP1395W -A
PSUP1395W -C
CN2
1
R
R
2
W
W
G1
SP+
M2
M1
B2 A3 A4
B9
64
49
48
33
32
17
16
1
C95
D3
R137
R141
R140
R139
R138
C11
JK1
D1
~
~
R1
R2
R5
C35
R77
C36
C27
C28
C29
R31
1
4
10
1
C31
R3
PC1
C23
C103
C22
C34
R87
R85
R86
R82
R61
C75
C83
C76
R60
R107
C102
7
8
1
1
10
5
6
14
C109
R124
R123
IC1
C106
R201
C64
R63
R62
R62
R64
C71
Q16
Q15
C72
R88
C82
IC5
1
14
8
1
8
5
4
7
R22
R26
C53
IC10
1
4
5
8
Q
R96
C10
J5
R7
6
C33
C32
R34
R30
R84
R208
R39
R24
R40
C85
R27
CN7
R25
C24
R28
C25
R89
R78
R58
IC4
C73
R65
C74
R70
C65
R106
R101
C101
R102
R105
R104
R122
R121
R153
D2
C105
IC2
R108
C108
R155
C107
R154
C117
X1
R103
Q101
T2
Q19
IC9
C204
C205
C206
C203
R71
R206
C43
R54
C46
R57 C60
R55
C58
R72
R58
C47
C44
R47
R48
R51
R52
C52
R44
C61
R59
R80
R67
R68
R66
C59
R53
C55
C51
C50
R49
C45
R50
C49
R79
16
30
15
1
IC3
C67
C66
C62
R45
A
C48 R46
R69
R42
R43
R207
C81
R83
R36
R19
R20
R74
R73
JK2
J3
J2
R23
C84
R38
R37
R29
Q11
Q12
Q8
Q10
Q18
Q5
Q6
Q7
Q13
W
R
R
1
2
CN5
Q14
C2
C30
C56
20
C63
C57
C54
W
R
2
1
CN3
30
35
50
D34
D5
D4
D6
2
3
1
JK3
4
5
PSUP1395W -B
N2
N1
N5
N6
N4
N7
N3
KX-T7735RU: MAIN BOARD COMPONENT VIEW
PbF
Marked PbF (around here)
PbF
Marked PbF
(around here)
PbF
2 FOR SERVICE TECHNICIANS
ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover the plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not touch IC or LSI pins with bare fingers.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover the plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not touch IC or LSI pins with bare fingers.
4
KX-T7735RU
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