Read Panasonic KX-TEB308UA / KX-TE82460X / KX-TE82493X / KX-A227X (serv.man4) Service Manual Supplement online
18
KX-TEB308UA
D
C
B
A
78
11
12
10
9
3/4
KX-TEB308UA
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)
RXD0
TXD0
R733
10k
R732
NC
DG
+3.3V
C728
0.1
R735
39
+3.3V
TP707
R736
39
C727
0.1
TP706
C729
0.1
TP708
TP642
TP643
R737
TP705
R734
39
DG
DG
NCS_EXT
TP531
TP532
TP530
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
A[2]
4
3
6
5
220
L723
220
TP757
TP729
TP663
TP780
51
A2
52
DVDD252
RA706
68
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
USB_PUP
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
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
TP657
TP777
TP660
TP768
TP656
TP764
TP652
TP776
TP651
TP778
TP645
TP773
TP653
TP775
TP648
TP761
TP649
TP
59
9
TP650
TP766
TP654
TP771
TP
60
1
TP655
TP765
TP
61
1
TP647
TP662
TP770
TP644
TP772
TP646
TP661
TP769
TP767
TP
61
3
TP658
TP763
TP774
TP779
TP659
TP762
TP728
TP756
TP
60
3
TP
60
9
TP
60
5
TP
60
7
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]
RAMCSN
IC710
5
6
TP521
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
R729
10k
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
TP759
TP737
3
8
6
TP736
TP760
5
TP739
CN703
7
DG
39
2
4
9
TP758
TP738
1
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
DG
C717
0.1u
C779
6.3V/22u
C778
6.3V/22u
R759
10k
+3.3V
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
R760
220
R762
NC
R761
220
IC715
1
2
4
MRSTN
IC714
2
4
1
TP840
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
+3.3V
IC714
5
3
DG
C991
0.01u
IC715
5
3
+3.3VBS
C992
0.01u
DG
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