Read Panasonic KX-T7633RU Service Manual online
KX-T763
3
RU-B MAIN
AND SUB BOARDS (2/4)
1/4
2/4
3/4
4/4
(y)
(z)
(A) (B) (D) (E)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(1
1)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
SW144
SW145
SW146
SW143
SW137
PA
U
S
E
SW142
1
SW135
CONF
SW138
INTERCOM
SW139
AUT
O/ANSWER
SW136
FWD
SW130
CO4
SW127
CO1
SW126
3
SW131
CO5
SW129
CO3
SW128
CO2
SW123
CO8
SW121
CO10
SW122
CO9
SW1
15
CO17
SW1
14
CO16
SW1
13
CO15
SW134
2
IC3
64 CVcc
63 PB6
62 PB7
61 VTref
60 TONED
59 P87
58 P86
57 P85
56 P84
55 P83
54 P82
53 P81
52 P80
51 P77
50 P76
49 P75
48
P74
47
P73
46
P72
45
P71
44
P70
43
P67
42
P66
41
P65
40
P64
39
P63
38
P62
37
P61
36
P60
35
P57
34
P56
33
P55
17
P17
18
IRQ2
19
P15
20
P14
21
P13
22
P12
23
P11
24
TMOW
25
PA3
26
PA2
27
PA1
28
P50
29
P51
30
P52
31
P53
32
P54
1
X1
2
X2
3
Vss
4
OSC2
5
OSC1
6
TEST
7
Vcc
8
RES
9
P20
10
SCK
11
P22
12
SO1
13
SCK3
14
RxD
15
TxD
16
P27
DG
C24
Z0.1
DG
D3.3V
C17
Z0.01
DG
VDD
6
VDD
7
VSS
8
VSS2
9
VSS2
10
VOUT
11
CAP3-
12
CAP1+
13
CAP1-
14
CAP2-
15
CAP2+
16
V1
17
V2
18
V3
19
V4
20
V5
21
SW160
HOOKSW
R8
47K
D3.3V
D3.3V
CN8
1
KEYIN3
2
KEYIN4
3
KEYIN5
4
KEYIN6
5
KEYOUT7
6
KEYOUT6
7
KEYOUT5
8
NROW9
9
CLM0
CN9
1
2
3
4
5
6
7
8
9
R15 120
D133
SPPHONE
SW148
FLASH
SW150
REDIAL
SW152
CANSEL(PROG)
SW153
ENTER
SW154
MESSAGE
SW155
HOLD
SW157
DOWN
SW158
LEFT
SW159
RIGHT
C14
Z0.1
DG
C10
Z0.1
D3.3V
DG
C1
Z2.2
C2
Z2.2
C3
Z2.2
C4
Z2.2
C5 Z1
C6 Z1
C7 Z1
C8 Z1
C9
50VZ1
R3
1M
R4
1M
R1
1M
R2
1M
C22
Z0.1
IC8
2
4
DG
D2
D3
SW132
CO6
SW140
AUT
O/ST
ORE
D1
1
D8
AREACOAD3
D10
MODELCOAD2
D6
AREACOAD1
D7
AREACOAD2
SW141
4
SW133
5
SW125
6
SW147
TRANS
E1
E2
E4
E3
E6
E5
E8
E7
F1
F3
F2
F5
F4
F7
F6
F8
-1.2V
DG
C15
Z0.01
IC1
Vo
u
t
1
Vi
n
2
Vss
4
NC
3
DG
C13 Z0.1
R6
0
NC
C16
SW156
UP
SW149
SPPHONE
DG
SW1
17
7
SW109
8
SW101
9
SW1
18
*
SW1
10
0
SW102
#
SW1
19
CO12
S
W
111
CO13
SW103
CO19
SW120
CO1
1
SW1
12
CO14
SW104
CO20
SW105
CO21
SW106
CO22
SW107
CO23
SW108
CO24
SW124
CO7
SW1
16
CO18
F12
F1
1
F10
F9
E9
E10
E11
A1
1
B7
CN3
18
VDD
1
GND
11
GND
13
GND
2
RxRDY
3
BUSY
15
OPDET
4
SCLK
5
RxD
6
TxD
7
TxEN
8
OSX
9
OSR
10
OSYNC
12
OCK2M
14
RESET
OUT1
16
VDD
17
VDD
IC8
5
3
1
D3.3V
G1
G2
G3
G4
G5
G6
G7
H1
H2
H3
H4
H5
R25
47K
D3.3V
SW144_2
S1
SW145_2
S2
SW146_2
S3
SW143_2
S4
VOUT
V5
R7
470
D1
D12
C12
Z0.1
C1
1
Z4.7
D9
AREACOAD3
R107
0
J3
NC
J4
R132
47K
A12
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
KEYIN6
KEYIN5
KEYIN3
KEYIN4
KEYIN2
KEYIN1
KEYIN0
WEN
REN
INTN
RxD
SCLK
TxEN
BUSY
RxRDY
AD2
AD3
AD4
KEYOUT6
KEYOUT7
KEYIN4
KEYIN5
KEYIN6
KEYOUT7
KEYOUT6
KEYOUT5
KEYIN3
KEYIN4
KEYIN5
KEYIN6
KEYOUT4
KEYOUT3
KEYOUT1
KEYOUT0
KEYIN3
KEYOUT5
RxRDY
BUSY
OPDET
SCLK
RxD
TxD
TxEN
OSX
OSR
OSYNC
OCK2M
RESET
OUT1
AD5
AD6
KEYIN7
AD0
AD1
KEYOUT0
KEYOUT1
KEYOUT2
KEYOUT3
KEYOUT4
KEYOUT5
KEYIN1
KEYIN2
KEYOUT7
KEYOUT6
KEYIN0
KEYOUT2
KEYIN7
TxD
TO SIDE OPTION
T
O
LCD
(1)
(3)
35
KX-T7633RU-B
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