DOWNLOAD Panasonic KX-T7730RU (serv.man7) Service Manual ↓ Size: 1.01 MB | Pages: 28 in PDF or view online for FREE

Model
KX-T7730RU (serv.man7)
Pages
28
Size
1.01 MB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
PBX / PROPRIETARY TELEPHONE
File
kx-t7730ru-sm7.pdf
Date

Panasonic KX-T7730RU (serv.man7) Service Manual / Supplement ▷ View online

3
KX-T7730 Series 
1 ORIGINAL SERVICE MANUAL INFORMATION
Model No. on S/M
Destinations
Order No. of S/M
Supplement No.
KX-T7730CE
Europe
KMS0203621C2
11
KX-T7730CE-B
Hong Kong
KMS0810590CE
7
KX-T7730E/E-B
England
KMS0203623C2
9
KX-T7730SP
Spain
KMS0201607C2
12
KX-T7730AL
Australa
KMS0201605C3
11
KX-T7730AL-B
Australa
KMS0512171CE
9
KX-T7730C
Canada
KMS0304734C1
10
KX-T7730CA
Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, 
Turkmenistan
KMS0804481CE
8
KX-T7730NZ
New Zealand
KMS0205635C3
12
KX-T7730RU
Russia
KMS0111594C3
12
KX-T7730UA
Ukraine
KMS0605231CE
8
KX-T7730X
Asia, Middle Near East, Africa, Latin America
KMS0110592C3
14
KX-T7730X-B
Asia, Middle Near East, Africa, Latin America
KMS0508120CE
11
4
KX-T7730 Series 
2 Schematic Diagram
Changed from Original Service Manual as section 15.
On using the speakerphone
2.4V
Ringer
Signal
SP-Phone
Reception Signal
SP-Phone
T
ransmission
Signal
2.8V
1.5V
2.7V
2.0V
2.1V
2.1V
1.5V
2.2V
2.8V
2.8V
2.8V
2.7V
2.8V
2.9V
2.5V
2.7V
2.8V
0
2.8V
5.4V
2.8V
0
0
0
0
6.1V
2.9V
2.8V
4.6V
Handset   
T
ransmission 
Signal
1.6V
1.7V
Handset   
Reception Signal
1.5V
DTMF
Signal
for Dial
0
0
0
3.3V
3.3V
3.3V
3.3V
0.8V
3.3V
3.3V
3.3V
3.3V
3.3V
0
4.0MHz
0
3.3V
5.4V
6.1V
12V
5.3V
20V
1.8V
1.6V
1.8V
3.3V :
0V :
The handset is in use
The speakerphone is in use
0
0
0
0
0
0
0
0
0
3.3V
3.3V
3.3V 
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
0
0
0
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
0
Note :
  Resistors, Capacitors and other electrical components
  part numbers, please refer to the Replacement Parts List.
GR
GR
GR
GR
GR
GR
GR
GR
GR
GR
GR
GR
C
E
B
A
D
F
G
H
K0
K6 
K5 
K4 
K3 
K2 
K1
C0
C1
C2
C3
C5
C4
L7
L6
L5
L4
L3
L2
L1
L0
L0
L1
L2
L3
L4
L5
L6
L7
C3
C2
C1
C0
K0
K1
K2
K3
K4
K6
K5
C4
C5
D6
Q101
Q109
1
B1
2
E
3
B2
4
C2
5
C1
Q11
1
B1
2
E
3
B2
4
C2
5
C1
Q12
1
B1
2
E
3
B2
4
C2
5
C1
Q15
1
B1
2
E
3
B2
4
C2
5
C1
Q16
1
B1
2
E
3
B2
4
C2
5
C1
Q105
1
Tr1_B
2
E
3
Tr2_B
5
Tr1_C
4
Tr2_C
Q106
1
Tr1_B
2
E
3
Tr2_B
5
Tr1_C
4
Tr2_C
Q107
1
Tr1_B
2
E
3
Tr2_B
5
Tr1_C
4
Tr2_C
Q108
1
Tr1_B
2
E
3
Tr2_B
5
Tr1_C
4
Tr2_C
IC7
3
OUT
2
GND
1
VCC
IC5
1
I/O1
2
O/I1
12
CONT4
13
CONT1
3
O/I2
14
VDD
4
I/O2
11
I/O4
5
CONT2
10
O/I4
6
CONT3
9
O/I3
7
VSS
8
I/O3
D10
D3
D30
D31
D32
D33
D34
D4
D5
D7
C8
0.22u
C103
2.2u
C113
2.2u
C112
2.2u
C114
2.2u
C115
2.2u
C116
2.2u
C50
2.2u
C51
2.2u
C21
0.1u
C24
0.1u
C26
0.1u
C27
0.1u
C34
0.1u
C41
0.1u
C42
0.1u
C48
0.1u
C59
0.1u
C61
0.1u
C64
0.1u
C81
0.1u
16
C91
0.1u
C60
0.022u
C47
0.033u
C49
0.033u
C44
0.047u
C46
0.047u
C93
0.047u
C208
1000p
C212
1000p
C213
1000p
C6
1000p
C101
0.01u
C29
0.01u
C66
0.01u
C67
0.01u
C84
0.01u
C33
0.015u
C209
2200p
C130
330p
C30
220u
6.3
T2
1
2
4
56
7
10
9
8
X1
20M
1
2
3
CN1
1
VSS => GND
2
RS => A0
3
CSB => CS
4
SI => SI
5
SCL => SCL
6
VDD => VDD
7
VSS => NC
8
V4 => NC
9
V3 => VG
10
V2 => V0
11
V1 => XV0
12
V0 => VSS
13
ResetB => RES
14
VSS => GND
R106
1k
R108
1k
R206
1k
R240
1k
R31
1k
R129
10k
R231 10k
R91
10k
R93
10k
R97
10k
R99
10k
R1
100k
R289
100k
R30
100k
R52
100k
R58
100k
R73
100k
R96
100k
R59
12k
R68
120k
R76
120k
R140
15
R36
150
R60
1.5k
R82
1.5k
R126
15k
R156
15k
R98
15k
R55
150k
R14
18
R54
18k
R92
18k
R101 220
R102 220
R131
220
R133
220
R135
220
R12
2.2k
R123
2.2k
R201
2.2k
R2
22k
R208
22k
R67
220k
R86
220k
R48
2.2M
R10
2.7k
R103
2.7k
R128
2.7k
R70
27k
R238
270k
R24
270k
R51
2.7M
R234
30k
R49
30k
R45
3.3k
R127
33k
R230
33k
R80
33k
R84
330k
R233
39k
R79
39k
R5
47
R237
470
R107
4.7k
R26
4.7k
R44
4.7k
R78
47k
R125
470k
R13
470k
R25
470k
R29
470k
R43
470k
R95
470k
R236
5.1k
R132
56
R134
56
R16
56
R27
5.6k
R46
5.6k
R47
5.6k
R74
5.6k
R69
56k
R105
68
R15
6.8k
R50
68k
R75
68k
R77
8.2k
R56
3.3
D18
3
4
1
2
D19
3
4
1
2
D20
3
4
1
2
D21
3
4
1
2
D22
3
4
1
2
D23
3
4
1
2
D24
3
4
1
2
D25
3
4
1
2
D26
3
4
1
2
D27
3
4
1
2
D28
3
4
1
2
D29
3
4
1
2
D17
D16
D15
D14
D13
D11
R136
56
IC1
17
P3_5
18
P3_4
19
P3_3/*INT3
20
P2_7
21
P2_6
22
P2_5
23
P2_4
24
P2_3
25
P2_2
26
P2_1
27
P2_0
28
P3_6
29
P3_1
30
P8_6
31
P8_5
32
P8_4
33
P8_3
34
P8_2
35
P8_1
36
P8_0
37
P6_7
38
P6_6/TXD2
39
P6_5/CLK2
40
P4_5
41
P1_7
42
P1_6
43
P1_5
44
P1_4
45
P1_3
46
P1_2
47
P1_1
48
P1_0
49
P0_7/DA1
50
P0_6/DA0
51
P0_5
52
T_CONT1
53
P0_3
54
P0_2
55
P0_1
56
P0_0
57
P6_4
58
P6_3
59
P6_2
60
P6_1
61
P6_0
62
P5_7
63
P5_6
64
P3_2
1
P3_0
2
P4_2/VREF
3
MODE
4
HS_MUTE
5
P4_4/XCOUT
6
*RESET
7
P4_7/XOUT
8
VSS/AVSS
9
P4_6/XIN
10
VCC/AVCC
11
P5_4
12
P5_3
13
P5_2
14
P5_1
15
P5_0
16
P3_7
AG
AG
AG
AG
AG
R104
NC
DG
D3.3V
D3.3V
D3.3V
A5V
DG
D3.3V
DG
DG
D3.3V
+6V
D5V
D3.3V
DG
DG
D3.3V
DG
D5V
DG
DG
A5V
C5
NC
C13
0.1u
AG
AG
AG
C10
NC
AG
+6V
C43
NC
AG
AG
AG
AG
AG
AG
R235
NC
C133
NC
AG
AG
AG
AG
AG
AG
C207
NC
AG
R19
NC
AG
AG1
AG
AG
C214
NC
D3.3V
AG
G
A
G
A
AG
C68
NC
AG
AG
AG
+6V
AG
AG
AG
+6V
AG
C82
NC
AG
D3.3V
DG
D3.3V
D3.3V
DG
D3.3V
DG
R121
NC
DG
DG
D3.3V
R154
NC
R155
NC
DG
DG
AG
AG
D3.3V
AG
R89
68k
R124
0
D3.3V
AG
R85
NC
AG
AG
A5V
D3.3V
DG
R153
NC
AG
DG
R8
33
AG
D3.3V
AG
D3.3V
AG
R296
NC
R144
470
R90
470
AG
AG1
JK2
1
2
3
4
5
JK3
1
2
5
3
4
C211
0.01u
DG
AG
AG
DG
DG2
D3.3V
DG
+6V
D5V
V1
H
T
R
L
B8
B1
B2
B3
B4
B5
B6
B7
A1
A3
A5
A7
A8
A9
A2
A4
A6
E4
E3
E1
E2
E5
E6
M3
AG2
SP+
SPN
K1
N5
N6
N7
N8
SP1
SP2
M2
M1
AG1
K2
N1
N2
N3
N4
AG
CN9
NC
1
2
3
4
CN2-1
MICP
CN2-2
MICN
CN3-1
SPP
CN3-2
SPN
CN4-2
CN4-1
CN5-1
CN5-2
C57
1000u
10
AG
SW42
HOLD
SW52
HOOK
SW16
1
SW22
2
SW28
3
SW34
4
SW40
5
SW46
6
SW15
7
SW21
8
SW27
9
SW33
*
SW39
0
SW45
#
SW41
REDIAL
SW47
<
SW43
SP-PHONE
SW48
>
SW49
V
SW50
SW11
CO12
SW12
CO11
SW13
CO10
SW14
CO9
SW17
CO8
SW18
CO7
SW19
CO6
SW20
CO5
SW23
CO4
SW24
CO3
SW25
CO2
SW26
CO1
SW29
CONF
SW30
FWD/DND
SW31
MUTE
SW32
STORE
SW35
M.W
SW36
PAUSE
SW37
FLASH
SW38
TRANSFER
SW44
ICM
SW51
PROGRAM
J4
J1
R34
3.3k
AG
AG
G1
G2
JK1
1
2
3
4
5
CN7-6
CN8-1
CN8-5
CN7-7
CN7-3
CN8-2
CN8-3
CN8-6
CN8-4
CN8-7
CN7-5
CN7-4
CN7-1
CN7-2
T1
16
3
4
2
R66
NC
C71
NC
R62
NC
C73
NC
C72
NC
R64
NC
R65
NC
C74
NC
R63
NC
C75
NC
R207
NC
C76
NC
AG
AG
AG
AG
AG
Q6
Q10
Q13
Q14
Q21
Q22
AG
A5V
IC10
1
AOUT
2
A-IN
3
A+IN
4
GND
5
B+IN
6
B-IN
7
BOUT
8
V+
IC6
1
AOUT
2
A-IN
3
A+IN
4
GND
5
B+IN
6
B-IN
7
BOUT
8
V+
IC9
1
NC
2
A
4
Y
5
VCC
3
GND
R300
NC
D3.3V
R301
NC
R302
NC
R303
NC
IC11
1
CE
2
GND
3
VOUT
4
VDD
C205
220u
10
Q111
Q112
Q113
Q114
DG
DG
DG
IC2
4
VSS
1
OUT
2
VDD
3
NC
IC4
NC
1
CD
2
+VREF
6
V+
7
GND
3
+VIN
8
VOUT2
4
-VIN
5
VOUT1
J2
NC
J3
NC
R61
0
C102
NC
Q5
Q3
Q4
Q8
Q9
Q102
Q18
Q20
DG
Q110
(   )
NC
C94
1000p
R94
4.7k
R100
68k
C104
0.01u
C106 0.01u
C107
0.1u
C108
0.1u
C110
0.1u
C117
0.01u
C132
1u
C204
0.1u
C210
0.01u
C3
22u
16
C35
1u
C36
0.1u
C53
47u
6.3
C54
100u
6.3
C63
100u
6.3
C85
0.01u
C86
0.01u
C92
1u
C95
0.1u
C96
0.01u
D1
4
1
3
2
D2
4
1
3
2
PC1
1
2
3
4
Q1
Q2
R3
2.2k
C203
47u
25
RA2
1.2k
1
2
3
45
6
7
8
D12
D40
R232
15k
R71
10k
R72
3.9k
R39
8.2k
R40
6.8k
R139
33
R137
100
R138
56
IC3
1
RR
2
RTX
3
TXI
4
TXO
5
TLI
23
XDC
24
VLC
25
ACF
26
RXO
27
RXI
6
TLO
7
RLI
8
RLO
9
MCI
10
MCO
12
CP2
13
XDI
14
SKG
18
*CS
19
SKI
20
VCC
21
VB
22
GND
15
SKO
16
V+
17
AGC
11
CP1
28
RRX
R157
0
SW1
4
C
1
2
3
5
6
IC8
1
IN/OUT
2
OUT/IN
3
GND
5
VCC
4
CONT
R158
0
R159
NC
C118
NC
C250
100p
L1
L2
L3
C251
220p
AG
C252
220p
C253
220p
AG
C254
220p
AG
C255
220p
C65
220p
L4
L7
NC
L6
NC
C25
10u
C52
10u
C55
10u
C58
4.7u
C215
100u
6.3
C9
100u
10
C206
100u
10
L5
D41
NC
C56
220u
10
C12
2200p
C131 1u
C14
0
C2
0.33u
C22
0.022u
C23
0.022u
C28
1000p
C31
22u
C32
1u
C4
10u
C45
0.033u
C62
0.022u
C7
1200p
R17
470
R20
0.015u
R21
6.8k
R22
3.9k
R23
47
R28
3.9k
R32
33k
R37
12k
R38
4.7k
R4
27k
R41
8.2k
R42
15k
R57
1k
R6
0
R7
82k
R81
18k
R87
33k
R88
5.6k
R9
18k
Split PCB 1
Split PCB 2
CN8
CN7
Split PCB 1
CN2
CN3
CN4
CN5
CN8
CN7
R157  0 => NC
R158  0 => NC
R159  NC => 0
C112  2.2uF => NC
C113  2.2uF => 1uF
C114  2.2uF => NC
C115  2.2uF => NC
C118  NC => 1uF
LCD Driver  Old => New
D9
3
6
4
2
5
8
7
11
10
9
12
1
KX-T7730 Series MAIN BOARD
5
KX-T7730 Series 
3 Printed Circuit Board (Main Board)
3.1.
Component View
Changed from Original Service Manual as section 16.1.
MAIN BOARD (COMPONENT VIEW)
HK
B
1 2 3 4 5 6 7 8 9
A
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C35
D3.3V
C36
C41
C42
C43
C44
R230
C45
R231
C46
R232
C47
R233
C48
R234
C49
R235
R236
R237
R238
C50
C51
C52
C53
C203
C54
R240
C204
C55
C205
C56
C206
C57
C207
C58
C208
C59
C209
C60
C210
C61
C211
C62
C212
C63
C213
C64
C214
Q10
E
C65
C215
Q11
C66
Q12
C67
Q13
E
SP+
C68
H
Q14
E
Q15
Q16
L
Q18
E
SP1
SP2
C71
C72
R
RA2
C73
C74
T
Q20
E
Q21
E
C75
Q22
E
C76
A1
A2
A3
A4
A5
DG2
A6
A7
A8
C81
A9
C82
C84
C85
PC1
C86
B1
B2
SPN
B3
B4
B5
B6
AG
B7
B8
C91
C92
C93
C94
C95
C96
C2
C3
C4
R289
C5
C6
C7
C8
C9
D1
Q101
E
R296
D2
Q102
E
D3
D4
D5
Q105
D6
Q106
D7
Q107
Q108
D9
Q109
E
Q110
Q111
E
E1
Q112
E2
Q113
E3
Q114
E
E4
E5
E6
DG
G1
G2
JK1
5
1
4
JK2
1
4
5
JK3
1
2
3
4
5
R100
R101
J2
R102
J3
R103
R104
R105
R106
R107
D10
R108
R300
R301
R302
R303
K1
K2
R121
R123
R124
R125
R126
R127
D30
R128
D31
R129
D32
D33
D34
R131
M1
R132
M2
R133
M3
R134
R135
R136
R137
D40
R138
R139
C101
C102
C103
R140
C104
N1
C106
N2
C107
N3
C108
N4
N5
N6
N7
N8
C110
IC1
4 9
6 4
1 7
3 2
1
1 6
3 3
4 8
IC2
C112
IC3
1
1 4
28
15
C113
IC4
C114
IC5
7
1
8
1 4
C115
IC6
C116
R153
IC7
1
C117
C118
R154
IC8
R155
IC9
R156
R157
R158
R159
R10
AG1
AG2
R12
R13
R14
R15
R16
R17
R19
C130
R20
C131
R21
D5V
C132
R22
C133
R23
R24
R25
Q1
E
R26
Q2
E
R27
E
Q3
R28
Q4
E
R29
Q5
E
Q6
E
Q8
E
Q9
E
R30
R31
R32
R34
R1
R36
R2
R37
R3
R38
R4
R39
R5
R6
R7
R8
R9
R40
R41
R42
R43
R44
R45
R46
R47
R48
R49
R50
R51
R52
R54
T1
R55
R56
T2
R57
R58
R59
R60
R61
R62
R63
R64
R65
R66
R67
R68
R69
R70
R71
R72
R73
R74
R75
V1
R76
R77
R78
R79
R80
R81
R82
R84
R85
R86
R87
R88
R89
CN1
2
1 3
1 4
1
R91
R92
R93
R94
R95
X1
1
4
CN9
R96
+6V
R97
R98
R99
C10
C12
C13
C14
R201
IC10
IC11
R206
R207
R208
CN3
CN7
CN4
X
A
UE
C E
NE
CN
CE
NZ
AL
SP
RU
PSUP1382YE-GW-A
PbF
PSUP1382YE-GW-C
PbF
CN5
REF2
50
30
20
CN2
PbF
PSUP1382YE-GW-B
5
1
10
6
1
4
8
5
7
1
8
5
4
1
MP
MP
MP
L1
C250
L2
L3
C251
C252
C253
C254
L4
C255
L5
M
D41
1 2 3 4 5 6 7 8 9
A B C D E F G H I
6
KX-T7730 Series 
3.2.
Bottom View
Changed from Original Service Manual as section 16.2.
MAIN BOARD (BOTTOM VIEW)
SW
29
SW3
0
SW
31
SW11
SW12
SW13
SW14
SW15
SW16
SW17
SW18
SW19
SW20
SW21
SW22
SW23
SW24
SW25
SW26
SW27
SW28
SW29
SW30
SW31
SW32
SW33
SW34
SW35
SW36
SW37
SW38
SW39
SW40
SW41
SW42
SW43
SW44
SW45
SW46
SW47
SW48
SW49
SW50
SW51
SW52
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
R144
R90
HOOK SW
INTERCOM
FLASH
AUTO ANS
MUTE
HIGH-LOW-OFF
3
2
1
4
CONF
AUTO DIAL
1
2
4
5
7
8
0
1
7
CN8
REDIAL
HOLD
SP-PHONE
REF1
9
6
3
STORE
TRANSFER
PAUSE
FWD/DND
PROGRAM
MESSAGE
CO11
CO10
CO9
CO8
CO7
CO6
CO5
CO4
CO3
CO2
CO1
CO12
L6
L7
Page of 28
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Panasonic KX-T7730RU (serv.man7) Service Manual / Supplement ▷ Download

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  • Here you can View online or download the Service Manual / Supplement for the Panasonic KX-T7730RU (serv.man7) in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic KX-T7730RU (serv.man7) PBX. Information contained in Panasonic KX-T7730RU (serv.man7) Service Manual / Supplement (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.