Read Panasonic KX-T7565X Service Manual online
1
5
SCHM
A
T
IC
DIA
G
RA
M
HANDSET RECEPTION
HANDSET TRANSMISSION
HANDSET SIDETONE
SP-PHONE RECEPTION
SP-PHONE TRANSMISSION
OFF-HOOK MONITOR TRANSMISSION
D104
D101
D105
D103
D102
D106
D107
D100
R137
100K
C106
6.3V10
SP
2
R106
1K
6
Vss
R2
33
R135
220K
C113
2200P
IC9
7
14
R28
33
C108
0.01
R110
8.2K
R112
2.2K
C137
0.033
R109
470K
C24
R100
0
R134
18K
R12
4.7K
R133
100
R107
100K
R139
30K
C22
15P
C30
0.1
C129
6.3V47
R130
12K
L13
MIC
1
C103
150P
C9
0.022
R1
560
C135
0.1
R119
270K
R143
2.7M
C26
T1
4
59
10
1
26
7
C111
0.1
C17
0.1
IC4
12
5
4
3
R16
1M
C115
0.047
R136
3.3
R116
3.9K
IC8
7
14
C148
0.1
R5
33
IC7
1
RR
2
RT
X
3
TXI
4
TXD
5
TLI
6
TLO
7
TRL
8
RLD
9
MCI
10
MCO
11
CP1
12
N.C
13
CP2
14
XDI
15
SKG
16
SK
O
17
V+
18
AG
C
19
CS
20
SKI
21
VCC
22
VB
23
V-
24
XDC
25
VLC
26
AC
F
27
N.C
28
RXO
29
RXI
30
PRX
R105
100K
R15
4.7K
R160
270K
R155
3.3M
3
STB
R103
4.7K
R120
220
L1
R118
3.3K
R138
2.2M
CN1
1
D
ATA
R142
6.8K
D1
R17 1.8K
R104
10K
X2
16.384M
C1
50V2.2
C109
0.1
L3
3
4
1
2
R113
3.9K
C136
0.1
R140
75K
R10
12K
2
SCK
R141
1.5K
R11
20K
L6
33
C110
6.3V10
R6
4.7K
IC4
7
10
9
8
R129
1.8K
2
1
C29
C104
SW11
*
SW10
0
SW13
9
SW12
#
SW15
8
SW14
7
SW17
5
SW16
6
SW18
3
SW20
2
SW19
4
SW21
1
R145
5.6K
C25
0.01
C32
0.1
C31
0.1
C131
1
C132
1
R124
0
R147
12K
C140
0.1
R115
12K
C114
0.047
C133
0.068
R144
4.7K
R114
330K
C149
3300P
IC8
10
11
12
JK1
4
H
1
L
3
T
2
R
C5
1
C2
1
C3
68P
R7
4.7K
C6
68P
R4
4.7K
R3
4.7K
C19
0.1
C21
0.1
IC6
NC
1
CD
2
FC2
3
FC1
4
Vin
5
VO
1
6
VCC
7
GND
8
VO
2
C10
0.022
C105
6.3V10
C126
6.3V1000
R41
47K
R40
27K
SW2
1
2
3
4
IC8
8
9
6
R18
270
R19
56
IC8
3
4
5
R153
2.7K
IC8
2
1
13
R42
10K
C34
0.01
IC2
64
CVcc
63
PB6
62
PB7
61
VT ref
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
P16
19
P15
20
P14
21
P13
22
P12
23
P11
24
P10
25
P A
3
26
P A
2
27
P A
1
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
SI1
12
SO1
13
P24
14
P25
15
P26
16
P27
R149
1.5K
R9
4.7K
R161
39K
4
HS
3
2
1
H
L
A1
A2
A3
A4
B1
B2
B3
B4
F1
F2
F3
F4
F5
F6
F7
M2
AG
2
SP2-
SP2+
SP1
M1
AG
1
E2
E4
E3
E1
C33
0.01
NC
C150
NC
C16
NC
C20
IC3
PO+
5
PDI
10
DT
13
DR
8
PO-
4
PI
3
RO
-
2
VA
G
20
BCLKR
9
BCLKT
12
MCLK
11
TG
17
VSS
15
TI+
19
TI
18
VDD
6
FST
14
FSR
7
MU/A
16
RO
+
1
C116
0.1
R121
22K
C101
0.1
R102
4.7K
IC9
12
13
IC9
3
4
5
R43
100K
SW1
IC10
V
out
1
Vin
2
Vss
4
NC
3
Q21
1
4
3
2
5
Q20
1
4
3
2
5
R126
120K
R125
220K
R128
27K
R127
56K
Q7
1
4
3
2
5
Q8
1
4
3
2
5
Q14
1
4
3
2
5
Q18
1
4
3
2
5
R123
2.2K
Q5
1
4
3
2
5
Q6
1
4
3
2
5
R132
100K
SW22
REDIAL
SW34
ST
ORE
SW23
SP/MONIT
OR
SW24
MUTE
SW27
CO1
SW26
CO2
SW25
CO3
SW30
CO4
SW29
CO5
SW28
CO6
SW33
CO7
SW32
CO8
SW31
FLASH
SW35
TRANSFER
SW36
PR
OGRAM
SW39
SW38
SW37
INTERCOM
E5
D108
D109
D110
B5
C37
0.1
RA1
47K
5
6
7
8
Q10
1
4
3
2
5
4
Vo
5
Vdd
NC
C35
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
R108
100
R23
0
+5VD
+5VD
+5VD
+5VD
+5VD
+5VD
+5VD
+5VD
+5V
A
+5VD
+5VD
+5VD
+5VD
+5VD
+5V
A
+5V
A
+5V
A
+5V
A
G1
G2
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
SW40
HOLD
NC
C4
NC
C7
NC
C145
NC
C146
AG
AG
C127
4.7
C123
4.7
C130
4.7
AG
IC9
89
6
IC9
10
11
12
R131
100K
AG
R162
220K
C147
1000p
C139
1000P
Q1
1
4
3
2
5
+5VD
R60
1M
T
R
NC
C117
IC1
45
C2
44
C1
43
C0
59
R9
D3
2
D2
3
D1
4
IOR
10
INTRX
11
48
C5
47
C4
PI
61
EP2
15
RESET
63
A0
7
IO
W
9
D0
5
A1
6
55
R5
56
R6
57
R7
58
R8
46
C3
54
R4
50
R0
51
R1
52
R2
53
R3
RXB
39
RXA
38
TXB
41
TXA
40
OSO
34
OSI
33
21
SXO
SR1
20
CK2M
18
NI
62
SR0
19
VDD
1
VDD
31
VDD
49
GND
17
GND
35
GND
64
CSN
8
N.C
32
N.C
42
N.C
60
EP0
13
EP1
14
IP0
27
IP1
28
IP2
29
IP3
30
OP0
23
OP1
24
OP2
25
OP3
26
CK16M
36
CK512K
37
CK2K
22
INTTX
12
EP3
16
R56
220K
C14
180P
C8
0.1
R51
1.2K
J1
R58
1.2
+5V
A
R53
4.7K
+5V
C38
50VZ0.01
R52
220
C15
6.3V220
R50
3.3K
DG
R54
100K
J2
IC5
1
OUT
2
E
3
Ct
4
GND
5
IN-
6
Vcc
7
Ipk
8
Dr
vC
+5VD
L4
330
µ
AG
C12
50V100
C13
50VZ0.22
+5V
A
Q4
1
4
3
2
5
6
R55
5.6K
R57
1.1K
R44
2.2K
R47
10K
R39
10K
NC
R38
C23
39P
D2
DG
+5VD
Q200
R302
1M
R301
15K
R303
220K
C302
50VZ0.1
R307100K
R305
6.8K
Q3
Q9
Q13
Q15
Q19
Q16
Q12
Q11
AG
AG
+5VD
+5V
A
AG
C28
DG
DG
R998
0
L5
AG
Q999
AG
NC
L999
NC
C994
+5V
A
AG
+5VD
+5VD
+5VD
+5VD
DG
DG
DG
AG
C987
6.3V220
DG
Q201
Q202
R304
470K
R306
220K
C301
50VZ0.22
R29
33
R30
33
R31
33
R32
33
R33
33
L7
33
L8
33
L9
33
L10
33
C100
0.022
R101
10K
C134
0.1
C121
0.1
C118
0.068
C120
0.1
C138
0.047
C119
0.022
C122
0.068
C112
0.033
R111
2.2K
R157
1M
R117
2.2K
R45
560
R46
2.2K
RA2
47K
5
6
7
8
C995
47P
R25
270
R27
33
R26
68
IC4
11
6
1
2
13
14
C11
0.1
DG
+5VD
L2
C993
50V0.01
R24
33
C997
1000P
NC
C900
1
AG
NC
C998
NC
C988
NC
C989
NC
C990
NC
C991
NC
C992
NC
R152
Q998
NC
C300
R996
33
NC
R300
NC
R156
NC
R151
NC
R150
NC
C151
NC
C144
NC
C141
NC
C996
NC
C143
NC
C142
R997
47K
R154
330K
R900
100K
AG
C107
6.3V100
C125
6.3V100
C124
6.3V100
C128
6.3V100
X1
8MHz
R22
220
R122
22K
C102
27K
R148
0.033
L997
0
L998
0
C986
0.01
C999
0.01
C27
100P
L11
L12
R20
270
R21
56
R999
R8
4.7K
R14
12K
R13
20K
P[64]
P[20]
P[17]
P[16]
P[73]
P[72]
P[71]
P[70]
P[65]
P[64]
P[63]
P[62]
P[61]
P[73]
P[60]
P A[1]
P A[2]
P[24]
P[50]
P[51]
P[52]
P[53]
P[54]
P[55]
P[56]
P[15]
P[20]
P[24]
P[25]
P[26]
P[26]
P[25]
P[10]
P[11]
P[12]
P[61]
P[10]
P[11]
P[50]
P[51]
P[52]
P[53]
P[54]
P[55]
P[63]
P[70]
P[87]
P[86]
P[84]
P[85]
P[83]
P[82]
P[81]
P[80]
P[77]
P[76]
P[75]
P[74]
P[87]
P[86]
P[85]
P[84]
P[71]
P[72]
P[12]
P[13]
P[60]
P[13]
P[14]
P[15]
P[16]
P[17]
P[66]
P[66]
P[14]
P[76]
P[77]
P[74]
P[75]
P[62]
P[56]
P[80]
P[81]
P[82]
P[83]
P A[1]
P A[2]
P[65]
R
R
G
G
CO8
G
R
G
CO4
R
CO3
R
G
CO7
CO6
G
R
G
R
CO2
CO5
R
G
ICM
SP
MUTE
CO1
RINGER VOLUME
MUTE
RESET
4 BIT MICROCOMPUTER
HOOK SW
RECEPTION VOLUME
CONTROL
DTMF
(FOR DIAL)
POWER CIRCUIT
LED
LCD CONTRAST CONTROL
KEY SWITCH
MUTE
TRANSMISSION
LEVEL ADJUSTMENT
SP VOLUME
OPERATION CONTROL
16
14
13
12
5
4
11
10
15
7
6
8
9
2
1
3
LCD MODULE
K
X
-T
7565X
/
K
X
-T
7565X-
B
35
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