Panasonic KX-TEB308CA / KX-TE82460X / KX-TE82493X / KX-A227X (serv.man3) Service Manual / Supplement ▷ View online
17
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
F
E
H
G
456
3
2
1
2/4
KX-TEB308CA
MAIN NO.4 (2/4)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(z)
(A)
(B)
(C)
(D)
(E)
(F)
(G)
LED_SW
L702
0
DG
J706
NC
+2.5V
FIL704
1
2
3
TP582
C752
1u
C751
2.2u
DSP_MDMRX
DSP_OGMOUT[1]
DSP_MELODY
DSP_DTMFG
DSP_INTCID[1]
DSP_INTCID[2]
DSP_MDMTX
107
AIN0
108
AIN1
109
AIN2
110
VREF1
111
AOUT0
112
AOUT1
113
AOUT2
114
VREF2
115
AOUT3
116
AOUT4
117
AOUT5
118
AOUT6
119
AGND119
120
AVDD3120
121
TP542
TP547
TP549
TP544
TP543
TP546
TP539
TP545
TP541
TP540
TP548
DSP_OGMIN[1]
TP538
AG
AG
C766
50V/3.3u
C768
50V/3.3u
C767
0.1u
C765
0.1u
DS[2]
PAD[2]
DL[2]
SHUNT[2]
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
59
59
60
60
DG
CDT[1-3],DET_CID,DET_DPH,DET_TAM,MOH_SW,NRESET,PAG_SW,RESET
ROSC1
BELLA[1-3],BELLB[1-3],CONF[1-3],DL[1-3],DS[1-3],MUTE[1-3],PAD[1-3],SHUNT[1-3]
CONF[2]
STD2
Q[2]
TOE1
Q[1]
Q[4]
TOE2
STD1
Q[3]
NRESET
NRESET
DET_DPH
DET_TAM
DET_CID
DET_TAM
DET_CID
ROSC2
RESET
BELLB[2]
BELLA[2]
SHUNT[3]
CONF[3]
MUTE[3]
BELLA[3]
DS[3]
DL[3]
PAD[3]
BELLB[3]
+2.5VB
NBACKUP
BELLB[2]
BELLA[2]
PAD[2]
SHUNT[2]
DS[2]
DL[2]
MUTE[2]
BELLA[2]
PAD[2]
SHUNT[2]
DS[2]
DL[2]
MUTE[2]
BELLA[1]
PAD[1]
BELLB[1]
SHUNT[1]
DS[1]
MUTE[1]
DL[1]
CONF[1]
SYSCLR
CDT[3]
DET_TAM
DET_DPH
CDT[1]
CDT[2]
DET_CID
NRESET
+3.3VB
IC700
AGND121
122
ROSC1
123
ROSC2
124
BACKUPn
125
BVSS
126
BVDD2
127
P00
128
P01
129
P02
130
P03
131
P04
132
P05
133
P06
134
P07
135
P10
136
P11
137
P12
138
DVDD3138
139
DGND139
140
DVDD2140
141
DGND141
142
P13
143
P14
144
P15
145
P16
146
P17
147
P20
148
P21
149
P22
150
P23
151
P24
152
P25
153
P26
154
P27
155
P30
156
DVD2156
15
7
DG
ND
15
7
15
8
P3
1
15
9
P3
2
16
0
P3
3
16
1
P3
4
16
2
P3
5
16
3
P3
6
16
4
P3
7
16
5
PR
X0
16
6
PR
X1
16
7
PR
X2
16
8
PT
X0
16
9
PT
X1
17
0
PT
X2
17
1
PT
XE
0
17
2
DV
DD
31
72
17
3
DG
ND
17
3
17
4
PT
XE
1
17
5
PT
XE
2
17
6
TO
A
17
7
TO
B
17
8
TO
C
PRX[0]
PTX[0]
PTXE[0]
C713
18P
C714
22P
DG
+3.3V
DG
+3.3V
C708
0.47
J702
NC
L700
0
C740
2.2u
SW2
1
2
3
FIL701
1
2
3
C706
NC
+3.3V
C710
0.1u
C707
1u
MRSTN
+2.5V
+3.3V
DG
DG
XTP_2.5V
XTP_3.3V
D702
BAT700
D703
IC702
1
VIN
2
Vss
3
CE
4
NC
5
VOUT
Q703
E
C
B
J703
TP
57
9
TP525
TP
58
6
TP552
TP527
TP551
TP550
TP515
TP529
Q702
E
C
B
Q704
E
C
B
C709
2.2u
+2.5V
J708
NC
FIL706
1
2
3
L744
0
C741
1u
C748
0.1u
C743
0.1u
C745
0.1u
C747
0.1u
C746
0.1u
C749
0.1u
C744
0.1u
C742
0.1u
C750
0.1u
DG
DG
DG
DG
DG
DG
DG
+3.3V
Q[1-4],STD1,STD2,TOE1,TOE2
TP555
TP556
TP554
TP557
TP558
TP553
TP560
TP559
XTP_BAT700
XTP_J703
TP520
IC710
1
2
TP535
NRESET
TP
58
4
TP
56
5
TP
57
3
TP
56
4
TP
56
9
TP
56
7
TP
58
1
TP
58
8
TP
57
5
TP
57
7
TP
56
3
TP
57
1
TP
59
6
TP
59
8
TP
59
2
TP
59
1
TP
59
4
620Hz
480Hz
PTXE[1]
PTXE[2]
25Hz
RA716 10k
4
3
2
1
8
7
6
5
7
6
5
+3.3V
TP528
RESET
AG
J711
0
DG
XTP_AG
+27V
CN710
1
1
2
2
3
3
4
4
5
5
6
6
7
7
C701
0.01u
C703
0.01u
C700
25V/100u
DG
J700
0
J709
0
DG
IC703
RE1
1
VSS
2
VOUT
3
VIN
C770
1u
DG
C769
1u
XTP_32K
C704
50V/100u
TP511
XTP_3.3VB
TP518
TP512
XTP_2.5VB
J710
0
DG
XTP_+27V
IC701
1
OUT
2
GND
3
VCC
+12V
+15V
C702
0.01u
XTP_+12V
C705
25V/100u
25V/100u
C774
25V/100u
25V/100u
C775
0.01u
XTP_+15V
C739
0.1u
TP533
TP536
NCS24
C738
0.1u
C737
0.1u
C736
0.1u
C735
0.1u
C772
2.2u
C773
1u
X701
32.768kHz
1
2
3
4
LED_SW
J701
0
FG
J717
NC
D705
DG
TP843
TP844
R750
10k
R714
4.7k
R713
1.2k
R749
10k
R717
1k
R718
39
R716
10k
R738
5.1M
R715
130k
R763
1k
IP701
IP700
H:LED ON
L:LED OFF
Slide Switch
IC708
5
3
C712
0.022
DG
IC710
14
7
DG
C711
0.022
+3.3V
+3.3V
IC711
14
7
C780
0.022
+3.3V
DG
18
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
D
C
B
A
78
11
12
10
9
3/4
KX-TEB308CA
MAIN NO.4 (3/4)
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
(m)
(n)
(p)
(q)
(r)
(s)
(t)
(u)
(v)
(w)
(x)
(y)
(8)
(9)
(10)
(12)
(1
1)
(13)
(14)
(15)
(16)
52
DVDD252
L723
220
TP663
4
3
6
5
TP729
RA706
68
A[2]
TP757
TP780
53
DG
ND
53
54
A3
55
A4
56
A5
57
A6
58
A7
59
A8
60
A9
61
A1
0
62
A1
1
63
A1
2
64
A1
3
65
A1
4
66
A1
5
67
A1
6
68
DV
DD
36
8
69
DG
ND
69
70
A1
7
71
A1
8
72
A1
9
73
A2
0
74
A2
1
75
A2
2
76
A2
3
77
SO
1
78
SI
1
79
SI
01
RR
DY
80
SI
01
TR
DY
81
EY
ED
82
EY
EC
LK
TP
59
9
TP
60
1
TP
61
1
TP
61
3
TP
60
3
TP
60
9
TP
60
5
TP
60
7
DG
+3.3V
R733
10k
R732
NC
RXD0
TXD0
A[5]
A[13]
A[19]
A[10]
A[4]
A[8]
A[3]
A[21]
A[9]
A[7]
A[14]
A[15]
A[16]
A[6]
A[17]
A[20]
A[11]
A[12]
A[18]
USB_VBUS
D[0-7],NIORD,NIOWR
D[9]
D[4]
NIOWR
D[7]
D[1]
MWRLN
D[14]
D[10]
D[5]
D[3]
D[0]
D[12]
MRDN
D[15]
D[8]
D[11]
D[6]
D[2]
A[0]
D[13]
BHEN
D[15]
D[12]
D[13]
D[14]
D[10]
D[11]
D[9]
D[8]
D[13]
D[4]
D[11]
D[15]
D[8]
D[2]
D[12]
D[10]
D[9]
D[6]
D[7]
D[0]
D[1]
D[3]
D[5]
D[14]
D[6]
D[2]
D[1]
D[5]
D[4]
D[0]
D[3]
D[7]
A[2]
A[1]
A[20]
A[10]
A[12]
A[3]
A[2]
A[19]
A[0]
A[1]
A[9]
A[12]
A[6]
A[14]
A[20]
A[5]
MWRLN
A[6]
A[7]
A[14]
A[10]
A[17]
A[15]
A[10]
A[6]
A[8]
A[5]
A[18]
A[16]
A[18]
A[7]
A[9]
A[21]
A[12]
A[4]
A[18]
A[11]
A[1]
A[8]
A[4]
ROMCSN
A[21]
A[9]
A[5]
A[16]
A[14]
A[17]
A[7]
MRDN
A[15]
A[17]
A[2]
A[13]
A[3]
A[15]
A[13]
A[11]
A[8]
A[4]
A[11]
A[13]
A[3]
A[16]
A[19]
A[10]
A[10]
A[12]
A[12]
A[11]
A[11]
USB_PUP
RAMCSN
RA704
68
1
2
3
4
5
6
7
8
RA702
68
1
2
3
4
5
6
7
8
RA705
68
1
2
3
4
5
6
7
8
RA701
68
1
2
3
4
5
6
7
8
RA703
68
1
2
3
4
5
6
7
8
L722
220
L704
220
L710
220
L714
220
L718
220
L716
220
L709
220
L713
220
L705
220
L711
220
L706
220
L720
220
L719
220
L707
220
L708
220
L717
220
L721
220
L712
220
L715
220
IC710
5
6
TP657
TP777
TP660
TP768
TP656
TP764
TP652
TP776
TP651
TP778
TP645
TP773
TP653
TP775
TP648
TP761
TP649
TP650
TP766
TP521
TP654
TP771
TP655
TP765
TP647
TP662
TP770
TP644
TP772
TP646
TP661
TP769
TP767
TP658
TP763
TP774
TP779
TP659
TP762
TP728
TP756
J712
0
TP797
RA726
68
4
3
2
1
8
7
6
5
TP791
L734
220
L732
220
L742
220
L730
220
RA728
10k
1
2
3
4
5
6
7
8
6
7
8
IC710
34
TP800
C724
0.1u
TP799
TP793
L726
0
L735
220
L731
220
L741
220
RA721
10k
1
2
3
4
5
6
7
8
6
7
8
RA725
68
4
3
2
1
8
7
6
5
C725
2.2u
+3.3V
TP785
TP798
TP500
C731
1u
TP789
TP806
L743
0
TP794
J705
NC
RA723
10k
1
2
3
4
5
6
7
8
6
7
8
TP792
NRESET
RA727
68
4
3
2
1
8
7
6
5
+3.3V
L737
220
L728
220
TP805
L738
220
FIL702
1
2
3
TP807
DG
L740
220
IOWR
FIL703
1
2
3
TP796
+3.3VF
L739
220
L729
220
L733
220
J713
NC
L727
220
L736
220
C732
0.1u
RA724
68
4
3
2
1
8
7
6
5
TP802
+3.3VB
C726
1u
IC705
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
9
NC9
10
NC10
11
WE
12
RESET
13
NC13
14
NC14
15
RY/BY
16
A18
17
A17
18
A7
19
A6
20
A5
21
A4
22
A3
23
A2
24
A1
25
A0
26
CE
27
Vss27
28
OE
29
DQ0
30
DQ8
31
DQ1
32
DQ9
33
DQ2
34
DQ10
35
DQ3
36
DQ11
37
Vcc
38
DQ4
39
DQ12
40
DQ5
41
DQ13
42
DQ6
43
DQ14
44
DQ7
45
DQ15/A_1
46
Vss46
47
BYTE
48
A16
C730
2.2u
TP795
TP788
TP787
TP801
TP804
TP825
TP786
TP803
DG
J704
NC
RA722
10k
1
2
3
4
5
6
7
8
6
7
8
MRSTN
RA710
10k
1
2
3
4
5
6
7
8
+3.3V
RA709
10k
1
2
3
4
5
6
7
8
RA711
10k
1
2
3
4
5
6
7
8
RA712
10k
1
2
3
4
5
6
7
8
RA713
10k
1
2
3
4
5
6
7
8
TP734
RA708
10k
2
1
3
4
5
6
8
7
TP735
D[0-7],MRSTN,NIORD,NIOWR
C728
0.1
TP759
TP737
+3.3V
TP707
C727
0.1
TP706
C729
0.1
TP736
TP760
TP708
TP739
TP642
TP643
DG
TP705
TP758
DG
TP738
DG
RA737
0
4
3
2
1
8
7
6
5
RA736
0
4
3
2
1
8
7
6
5
RA735
0
4
3
2
1
8
7
6
5
RA734
0
4
3
2
1
8
7
6
5
+3.3VBS
TP790
+3.3VF
TP783
TP784
+3.3VBS
IC704
1A
4
2A
3
3A
2
4A
1
5A
0
6
E
7
DQ0
8
DQ1
9
DQ2
10
DQ3
11
Vcc11
12
Vss12
13
DQ4
14
DQ5
15
DQ6
16
DQ7
17
W
18
A16
19
A15
20
A14
23
A17
24
A11
25
A10
26
A9
27
A8
28
NC
29
DQ8
30
DQ9
31
DQ10
32
DQ11
33
Vcc33
34
Vss34
35
DQ12
36
DQ13
37
DQ14
38
DQ15
39
LB
40
UB
41
G
42
A7
43
A6
44
A5
21
A13
22
A12
NCS24
DG
NCS_EXT
DG
C717
0.1u
C779
6.3V/22u
C778
6.3V/22u
+3.3V
TP531
TP532
TP530
IC710
9
8
TP522
IC710
11
10
TP523
IC710
13
12
DG
TP524
IC711
1
2
TP962
IC711
5
6
TP960
DG
TP961
IC711
3
4
+3.3V
IC715
1
2
4
MRSTN
IC714
2
4
1
TP840
R729
10k
R762
NC
R759
10k
R734
39
R760
220
R761
220
R736
39
R737
39
R735
39
2
5
8
6
4
3
1
9
CN703
7
IC713
A
1
B
2
C
3
G1
6
G2B
5
G2A
4
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
VCC
16
GND
8
AG
DTR
NC
NC
DSR
RST
NC
TXD
RXD
HVCO0FFb
Y0:4000
Y1:4400
Y2:4800
Y3:4C00
Y4:5000
Y5:5400
Y6:5800
Y7:5C00
51
+3.3V
IC714
5
3
C991
0.01u
IC715
5
3
+3.3VBS
C992
0.01u
19
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
F
E
H
G
78
11
12
10
9
(z)
(A)
(B)
(C)
(D)
(E)
(F)
(G)
4/4
KX-TEB308CA
MAIN NO.4 (4/4)
(8)
(9)
(10)
(12)
(1
1)
(13)
(14)
(15)
(16)
DL[3]
MUTE[3]
CONF[3]
MUTE[3]
CONF[3]
17
9
TO
D
18
0
TO
E
18
1
P4
0/
IO
CS
0n
18
2
P4
1/
IO
CS
1n
18
3
TP
60
6
TP
60
4
TP
60
8
TP
60
2
TP
60
0
350Hz
440Hz
440Hz
C754
0.1u
C753
0.1u
A2
TEST[0]
TEST[1]
TEST[2]
TEST[3]
MRDN
BHEN
NIOWR
NIORD
MWRLN
A[1]
NINT_DC
A[0]
EXDRQ
XTAL1
NINT4
NINT3
EXDRQ
RAMCSN
D[15]
D[14]
D[13]
D[12]
D[11]
D[10]
D[9]
D[8]
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]D[0]
ROMCSN
USB_VBUS
NIOWR
NIORD
XTAL2
BHEN
MWRLN
MRDN
BLPWR,BREAK,PDRLY
BLPWR
PDRLY
BREAK
BREAK
BLRLY
PAG_SW
MOH_SW
A[1]
A[2]
A[3]
A[6]
A[4]
A[5]
A[7]
MRSTN
NRESET
BELLB[3]
BELLA[3]
PAD[3]
SHUNT[3]
DS[3]
BELLA[3]
PAD[3]
SHUNT[3]
DS[3]
NINT0
IC700
1
DGND1
2
XTAL1
3
XTAL2
4
TEST0
5
TEST1
6
TEST2
7
TEST3
8
BHEn
9
RESETn
10
IORDn
11
IOWRn
12
MRDn
13
NMIn
14
DVDD214
15
DGND15
16
DVDD316
17
DGND17
18
DMINS
19
DPLUS
20
DVDD320
21
DGND21
22
MWRHn
23
MWRLn
24
D0
25
D1
26
D2
27
D3
28
D4
29
D5
30
D6
31
D7
32
D8
33
D9
34
DVDD334
35
DGND35
36
D10
37
D11
38
D12
39
D13
40
D14
41
D15
42
XINT0
43
XINT1
44
XINT2
45
XINT3
46
XINT4
47
EXDRQ
48
EXDAK
49
A0
50
A1
P4
2/
IO
CS
2n
18
4
P4
3/
IO
CS
3n
18
5
P4
4/
IO
CS
4n
18
6
P4
5/
IO
CS
5n
18
7
P4
6/
IO
CS
6n
18
8
P4
7/
IO
CS
7n
18
9
P5
0/
IO
CS
8n
19
0
PV
DD
19
1
PG
ND
19
2
RI
N
19
3
PL
LI
19
4
PL
LO
19
5
P5
1/
IO
CS
9n
19
6
DV
DD
21
96
19
7
DG
ND
19
7
19
8
P5
2/
IO
CS
10
n
19
9
P5
3/
IO
CS
11
n
20
0
P5
4/
IO
CS
12
n
20
1
P5
5/
IO
CS
13
n
20
2
P5
6/
IO
CS
14
n
20
3
P5
7/
IO
CS
15
n
20
4
ME
M2
CS
n
20
5
ME
M1
CS
n
20
6
RO
MC
Sn
20
7
RA
MC
Sn
20
8
DV
DD
32
08
DG
X700
47.923MHz
RA707
68
NC
4
3
2
1
8
7
6
5
DG
RA706
68
2
1
8
7
L703
1uH
C755
0.1uF
+3.3V
L724
220
L725
220
C733
220pF
C720
33pF
C721
5pF
DG
+3.3V
RA700
10k
4
1
3
2
7
6
8
5
6
8
5
+3.3V
+3.3V
TP672
TP704
DG
CN704
1
2
3
4
5
DG
TP829
FG
Q705
E
C
B
L745
220
FIL707
NC
1
2
3
4
+3.3V
RA715
10k
1
2
3
4
5
6
7
8
RA714
10k
1
2
3
4
5
6
7
8
TP666
TP664
TP665
TP781
TP782
TP669
TP668
TP671
TP667
TP670
TP691
TP692
TP693
TP703
TP700
TP697
TP695
TP696
TP702
TP701
TP698
TP699
TP694
TP
63
1
TP
63
0
TP
62
8
TP
62
6
TP
62
7
TP
62
5
TP
64
1
TP
62
9
TP
64
0
TP
62
4
TP741
TP744
TP751
TP754
TP749
TP748
TP747
TP745
TP742
TP740
TP746
TP753
TP755
TP743
TP750
TP752
TP
62
3
TP
61
4
TP
61
5
TP
61
6
TP
61
2
TP
61
8
TP
62
2
TP
61
9
TP
62
0
TP
61
0
TP
61
7
+3.3V
BLPWR,BREAK,PDRLY
TP828
TP827
TP826
DG
C771
0.033
+3.3V
A[1]
A[4]
A[2]
A[3]
A[5]
A[6]
A[7]
XTP_47M
MRSTN
C734
0.1u
TP808
XTP_RESET
DG
D704
+3.3V
C781
1000p
+3.3V
D706
NC
+12V
TP809
R744
0
R731
10k
R746
10k
R751
0
R745
10k
R754
22
R730
NC
R742
NC
R703
330
R720
10k
R756
1.5k
R743
NC
R705
10k
R758
10k
R724
10
R723
1M
R722
5.6k
R704
10k
R721
150
R755
22
SW1
IC712
1
M/R
2
SUB
3
GND
4
Vout
5
Vcc
USB Interface
USB_D+
GND
HOUSING
VBUS
USB_D-
RESET Switch
DG
C718
0.22uF
C719
0.01uF
TP
62
1
20
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
Memo
Click on the first or last page to see other KX-TEB308CA / KX-TE82460X / KX-TE82493X / KX-A227X (serv.man3) service manuals if exist.