Panasonic KX-T7735UA / KX-T7735UAPP (serv.man2) Service Manual ▷ View online
Ref.
No.
Part No.
Part Name & Description
Remarks
C102
ECJ1VC1H151J
150P
C103
ECUV1A225ZFV
2.2
S
C105
ECUV1H103KBV
0.01
S
C106
ECUV1H103KBV
0.01
S
C107
ECUV1C104ZFV
0.1
C108
ECUV1H120JCV
12P
C109
ECUV1H120JCV
12P
C110
ECUV1C104ZFV
0.1
C112
ECUV1A225ZFV
2.2
C113
ECUV1A225ZFV
2.2
C114
ECUV1A225ZFV
2.2
C115
ECUV1A225ZFV
2.2
C116
PQCUV1A225ZF
2.2
S
C117
ECUV1H103KBV
0.01
S
C203
F2G1E4700013
47
C204
ECUV1C104ZFV
0.1
C205
F2G0J1010014
100
S
C206
F2G0J1020008
1000
S
(CONNECTORS AND JACKS)
CN1
K1MN14AA0058
CONNECTOR, 14P
S
CN6
K1KA02BA0047
CONNECTOR, 2P
S
CN7
K1MY10BA0008
CONNECTOR, 10P
CN8
K1MY10BA0008
CONNECTOR, 10P
JK1
K2LB104D0005
JACK
JK2
K2LB104D0004
JACK
JK3
PQJJ1C002Z
JACK
S
(PHOTO ELECTRIC TRANSDUCER)
PC1
B3PBB0000040
PHOTO ELECTRIC TRANSDUCER
(RESISTORS)
R1
ERJ3GEYJ104
100K
R2
ERJ3GEYJ223
22K
R3
ERJ3GEYJ182
1.8K
R4
ERJ3GEYJ683
68K
R5
ERJ3GEYJ470
47
R6
ERJ3GEYJ681
680
R7
ERJ3GEYJ273
27K
R8
ERJ3GEYJ330
33
R9
ERJ3GEYJ203
20K
R10
ERJ3GEYJ272
2.7K
R12
ERJ3GEYJ222
2.2K
R13
ERJ3GEYJ474
470K
R14
ERJ3GEYJ180
18
R15
PQ4R10XJ682
6.8K
S
R16
ERJ3GEYJ560
56
R17
ERJ3GEY0R00
0
R21
ERJ3GEYJ272
2.7K
S
R22
ERJ3GEYJ332
3.3K
S
R23
ERJ3GEYJ121
120
R24
ERJ3GEYJ274
270K
R25
ERJ3GEYJ474
470K
R26
ERJ3GEYJ472
4.7K
R27
ERJ3GEYJ562
5.6K
R28
ERJ3GEYJ222
2.2K
R29
ERJ3GEYJ474
470K
R30
ERJ3GEYJ104
100K
R31
ERJ3GEYJ102
1K
R32
ERJ3GEYJ123
12K
S
R34
ERJ3GEYJ223
22K
R35
ERJ3GEYJ563
56K
R36
ERJ3GEYJ151
150
R37
ERJ3GEYJ273
27K
R38
ERJ3GEYJ103
10K
S
R39
ERJ3GEYJ473
47K
R40
ERJ3GEYJ473
47K
R41
ERJ3GEYJ472
4.7K
R42
ERJ3GEYJ183
18K
R43
ERJ3GEYJ474
470K
R44
ERJ3GEYJ472
4.7K
R45
ERJ3GEYJ332
3.3K
Ref.
No.
Part No.
Part Name & Description
Remarks
R46
ERJ3GEYJ562
5.6K
R47
ERJ3GEYJ562
5.6K
R48
ERJ3GEYJ225
2.2M
R49
ERJ3GEYJ303
30K
R50
ERJ3GEYJ683
68K
R51
ERJ3GEYJ275
2.7M
R52
ERJ3GEYJ104
100K
R53
ERJ3GEYJ473
47K
R54
ERJ3GEYJ183
18K
R55
ERJ3GEYJ154
150K
R56
ERJ8GEYJ3R3
3.3
S
R57
ERJ3GEYJ222
2.2K
R58
ERJ3GEYJ104
100K
R59
ERJ3GEYJ123
12K
R60
ERJ3GEYJ152
1.5K
R61
ERJ3GEY0R00
0
R67
ERJ3GEYJ224
220K
R68
ERJ3GEYJ124
120K
R69
ERJ3GEYJ563
56K
R70
ERJ3GEYJ273
27K
R71
ERJ3GEYJ473
47K
R72
ERJ3GEYJ473
47K
R73
ERJ3GEYJ104
100K
R74
ERJ3GEYJ562
5.6K
R76
ERJ3GEYJ683
68K
R77
ERJ3GEYJ393
39K
R78
ERJ3GEYJ473
47K
R79
ERJ3GEYJ393
39K
R80
ERJ3GEYJ473
47K
R81
ERJ3GEYJ153
15K
R82
ERJ3GEYJ472
4.7K
R83
ERJ3GEY0R00
0
R84
ERJ3GEYJ684
680K
R86
ERJ3GEYJ274
270K
R87
ERJ3GEYJ103
10K
R88
ERJ3GEYJ392
3.9K
R89
ERJ3GEYJ104
100K
R90
ERJ3GEYJ471
470
R91
ERJ3GEYJ103
10K
R92
ERJ3GEYJ183
18K
R93
ERJ3GEYJ103
10K
R94
ERJ3GEYJ472
4.7K
R95
ERJ3GEYJ474
470K
R96
ERJ3GEYJ104
100K
R97
ERJ3GEYJ103
10K
R98
ERJ3GEYJ153
15K
R99
ERJ3GEYJ103
10K
R100
ERJ3GEYJ104
100K
R101
ERJ3GEYJ221
220
R102
ERJ3GEYJ221
220
R103
ERJ3GEYJ103
10K
R104
ERJ3GEYJ103
10K
R105
ERJ3GEYJ101
100
R106
ERJ3GEYJ222
2.2K
R107
ERJ3GEYJ472
4.7K
R108
ERJ3GEYJ102
1K
R121
ERJ3GEYJ105
1M
R122
ERJ3GEYJ332
3.3K
R123
ERJ3GEY0R00
0
R124
ERJ3GEY0R00
0
R125
ERJ3GEYJ473
470K
R126
ERJ3GEYJ333
33K
R127
ERJ3GEYJ563
56K
R128
ERJ3GEYJ272
2.7K
R131
ERJ3GEYJ271
270
R132
ERJ3GEYJ390
39
R133
ERJ3GEYJ271
270
R134
ERJ3GEYJ390
39
R135
ERJ3GEYJ271
270
R136
ERJ3GEYJ390
39
R137
ERJ3GEYJ271
270
R138
ERJ3GEYJ221
220
R139
ERJ3GEYJ390
39
29
KX-T7735UA / KX-T7735UA-B
Ref.
No.
Part No.
Part Name & Description
Remarks
R140
ERJ3GEYJ560
56
R141
ERJ3GEYJ821
820
R154
ERJ3GEYJ104
100K
R156
ERJ3GEYJ153
15K
R157
ERJ3GEY0R00
0
R158
ERJ3GEYJ202
2K
R201
ERJ3GEYJ222
2.2K
R206
ERJ3GEYJ102
1K
R208
ERJ3GEYJ223
22K
R209
ERJ3GEYJ472
4.7K
R210
ERJ3GEYJ472
4.7K
R211
ERJ3GEYJ472
4.7K
R212
ERJ3GEYJ472
4.7K
R213
ERJ3GEYJ473
47K
R214
ERJ3GEYJ473
47K
R215
ERJ3GEYJ473
47K
(SWITCHES)
SW1
PSSS3A101Z
SWITCH
S
SW2
PSSS3A101Z
SWITCH
S
(TRANSFORMERS)
T1
G5A1A0000003
TRANSFORMER
T2
PSLT9Z4A
TRANSFORMER
(CRYSTAL OSCILLATOR)
X1
H0J400400011
CRYSTAL OSCILLATOR
30
KX-T7735UA / KX-T7735UA-B
16 FOR THE SCHEMATIC DIAGRAM
Note:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
31
KX-T7735UA / KX-T7735UA-B
17 SCHEMATIC DIAGRAM
(21)
(20)
(19)
(18)
(16)
(14)
(13)
(12)
(11)
(9)
(10)
(7)
(5)
(4)
(3)
(2)
(1)
(8)
(6)
(17)
(15)
KX-T7735UA/KX-T7735UA-B: MAIN BOARD NO.1
R31
R49
R50
R50
R48
R46
R47
R51
C44
C45
C61
C57
C63
R56
+6V
R54
R55
R57
C46
R42
C42
R58
C65
C59
C64
C58
C55
C52
C51
C50
C27
R61
C62
R29
C60
R70
R67
R68
AG
Q15
1
4
3
2
5
Q16
1
4
3
2
5
R69
C48
C47
R45
C53
R52
C56
C54
R36
A5V
C30
R38
Q11
1
4
3 2
5
R134
D22
CO5
D26
CO9
D28
CO11
Q106
1
4
3
2
2
5
R131
D27
CO10
R132
R133
D23
CO6
D24
CO7
R135
R136
D20
CO3
D18
CO1
D19
CO2
D5V
SW26
CO1
SW46
6
SW40
5
SW22
2
SW34
4
SW23
CO4
SW12
CO11
SW14
CO9
SW33
*
SW27
9
SW25
CO2
SW15
7
SW28
3
SW21
8
SW18
CO7
SW11
CO12
SW17
CO8
SW45
#
SW24
CO3
SW20
CO5
SW19
CO6
SW39
0
SW16
1
D29
CO12
3
4
1
2
D25
CO8
D21
CO4
R138
R137
Q108
1
4
3
2
2
5
C72
IC4
1
CD
2
FC2
3
FC1
4
Vin
5
VO1
6
VCC
7
GND
8
VO2
R62
R65
C71
R64
R43
C73
IC5
11
10
12
IC5
2
1
13
C74
C75
R66
R60
R59
R30
C28
R37
R53
R63
C31
CN2
1
+
2
-
CN3
1
+
2
-
R72
R71
D12
ICM
R139
DG
AG
AG
AG
AG
AG
AG
AG
AG
AG AG
AG
IC5
3
4
5
JK3
1
2
3
4
5
AG
AG
D16
MUTE
D17
STORE
D14
CONF
D15
FWD/DND
D13
SP-PHONE
SW31
MUTE
SW30
FWD/DND
SW35
M.W
SW32
STORE
SW29
CONF
SW37
FLASH
SW36
PAUSE
SW47
SW48
SW44
ICM
SW41
REDIAL
SW38
TRANSFER
SW43
SP-PHONE
SW49
SW50
JK2
HANDSET JACK
3
SP
1
MIC
2
4
4
A1
A2
A3
A4
A5
A6
A7
A8
A9
B1
B2
B3
B4
B5
B6
B7
B8
E4
E3
E2
E1
E5
E6
G2
G1
AG1
M3
AG2
SP- SP+
SW51
PROGRAM
TP199
TP200
TP201
TP202
SW1
3
4
2
1
2
1
SW13
CO10
CN6
1
2
2
CN4
1
2
CN5
1
2
2
R140
D11
M.W
AG
A5V
Q8
Q13
Q14
Q7
Q18
Q104
1
6
2
Q104
4
3
5
Q103
1
6
2
Q103
4
3
5
C84
R84
R44
C49
AG
R89
Q12
1
4
3
2
5
A5V
R73
Q105
1
4
3
2
2
5
Q107
1
4
3
2
2
5
CN8
8
7
5
4
9
6
7
5
4
9
6
CN7
2
3
5
6
1
4
3
5
6
1
4
CN8
2
1
3
1
3
CN7
8
9
7
9
7
AG
K2
K1
M1
SP1
M2
SP2
N3
N2
N4
N1
AG
C76
R90
D31
D32
D33
D34
R206
R207
C29
R208
R78
R79
AG
R86
R85
R88
R87
C66
C67
R80
B9
SW53
F1
SW54
F2
SW55
F3
SW56
F4
SW57
F5
SW58
F6
SW59
F7
SW60
F8
SW61
F9
SW62
F10
SW63
F11
SW64
F12
AG
C43
J2
J3
J3
D5V
SW2
3
4
2
1
2
1
R141
N6
N5
R158
AG
CN8
10
3
CN7
10
7
C207
R210
R211
R212
R209
IC3
28 RRX
27 RXI
26 RXO
25 ACF
24 VLC
23 XDC
22 GWD
21 VB
20 Vcc
19 SKI
18 CS
17 AGC
16 +V
15 SKO
27 RXI
26 RXO
25 ACF
24 VLC
23 XDC
22 GWD
21 VB
20 Vcc
19 SKI
18 CS
17 AGC
16 +V
15 SKO
14
SKG
13
XDI
12
CP2
11
CP1
10
MC0
9
MCI
8
RLO
7
RLI
6
TL0
5
TLI
4
TX0
3
TXI
2
RTX
1
RR
C208
C209
C210
SP_RX_MUTE
SP_TX_MUTE
SP_TX_MUTE
HS_POWER
SP_POWER
SP_POWER
HS_SP_VOL1
HS_SP_VOL2
SP_VOL3
SP_VOL4
HS_SP_VOL2
HS_SP_VOL1
C[1]
C[0]
C[3]
C[2]
T_CONT3
T_CONT4
L[0]
L[1]
L[2]
L[3]
L[4]
L[5]
L[6]
L[7]
SP_TX_MUTE
SP_RX_MUTE
T_CONT2
HS_POWER
K[0]
K[1]
K[2]
K[3]
K[4]
K[5]
HEAD_SET
K[6]
HS_MUTE
RING_OFF
C[4]
C[5]
K[8]
K[9]
SP_POWER
1K
30K
68K
68K
2.2M
5.6K
5.6K
2.7M
0.033
0.047
0.1
6.3V1000
6.3V100
3.3
18K
150K
2.2K
0.047
18K
0.1
100K
0.01
0.1
0.1
Z4.7
10
Z10
2.2
2.2
0.1
0
0.047
470K
0.022
27K
220K
120K
56K
0.1
0.033
3.3K
6.3V47
100K
6.3V220 6.3V100
150
6.3V220
10K
39
270
39
270
270
39
220
270
NC
NC
NC
NC
NC
NC
470K
NC
NC
NC
NC
1.5K
12K
100K
3300P
27K
47K
NC
10
47K
47K
39
56
0.01
680K
4.7K
0.033
100K
100K
NC
470
1K
NC
2200P
22K
47K
39K
270K
NC
3.9K
10K
0.01
3300P
47K
NC
NC
NC
NC
820 1%
2K 1%
NC
4.7K
4.7K
4.7K
4.7K
NC
NC
NC
R
R
R
G
R
G
R
G
R
G
G
G
R
R
R
G
G
G
R
G
R
G
G
R
PSUP1395XA-B
PSUP1395XA-C
PSUP1395XA-B
N/C
Backlight ASSy
C215
NC
NC
NC
C212
NC
NC
NC
2.4V
2.8V
1.5V
2.7V
2.8V
5.4V
5.3V
2.0V
0
0
2.8V
2.7V
2.5V
2.9V
2.8V
2.7V
2.8V
2.8V
2.8V
2.2V
1.5V
2.1V
2.1V
2.1V
0
0
0
2.8V
6.1V
2.9V
2.8V
4.6V
SP-Phone
Reception Signal
Reception Signal
SP-Phone
Transmission Signal
Transmission Signal
Ringer
Signal
Signal
5.4V :
0V :
The handset is in use
The speakerphone is in use
The speakerphone is in use
On using the speakerphone
AG
D8
32
KX-T7735UA / KX-T7735UA-B
Click on the first or last page to see other KX-T7735UA / KX-T7735UAPP (serv.man2) service manuals if exist.