DOWNLOAD Panasonic KX-TDA0290CJ / KX-TDA0290CE (serv.man3) Service Manual ↓ Size: 1.53 MB | Pages: 31 in PDF or view online for FREE

Model
KX-TDA0290CJ KX-TDA0290CE (serv.man3)
Pages
31
Size
1.53 MB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
PBX / TRUNK CARD PRI30 CARD
File
kx-tda0290cj-kx-tda0290ce-sm3.pdf
Date
PREV: Panasonic KX-TDA0290CJ / KX-TDA0290CE (serv.man2) Service Manual / Supplement

Panasonic KX-TDA0290CJ / KX-TDA0290CE (serv.man3) Service Manual / Supplement ▷ View online

21
KX-TDA0290CJ / KX-TDA0290CE
KX-TDA0290CJ/KX-TDA0290CE MAIN BOARD No.1  2/2
(4)
(6)
(8)
(10)
(12)
(14)
(16)
(45)
(18)
(35)
(37)
(42)
(1)
(2)
(3)
(5)
(7)
(9)
(11)
(13)
(15)
(17)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
(31)
(32)
(33)
(34)
(36)
(38)
(39)
(40)
(41)
(43)
(46)
(47)
(48)
(49)
(50)
(51)
(52)
(53)
(54)
(44)
LA[19]
LA[18]
LA[17]
LA[15]
LA[14]
LA[13]
LA[12]
LA[11]
LA[10]
LA[9]
LA[8]
LA[7]
LA[6]
LA[5]
LA[4]
LA[3]
LA[2]
LA[1]
LA[0]
LA[17]
LA[16]
LA[15]
LA[14]
LA[13]
LA[12]
LA[11]
LA[10]
LA[9]
LA[8]
LA[7]
LA[6]
LA[5]
LA[4]
LA[3]
LA[2]
LA[1]
LD[14]
LD[13]
LD[12]
LD[11]
LD[10]
LD[9]
LD[8]
LD[7]
LD[6]
LD[5]
LD[4]
LD[3]
LD[2]
LD[1]
LD[0]
EXTAL,XTAL
nCS[0-4],nCS[6]
nBACK,nBREQ,nIRQ[1],nRST,nWAIT
nIRQ[0],nIRQ[6-7]
nLBS,nRD,nWR
nWR
LD[0]
LD[1]
LD[2]
LD[3]
LD[4]
LD[5]
LD[6]
LD[7]
LD[8]
LD[9]
LD[10]
LD[11]
LD[12]
LD[13]
LD[14]
LD[15]
LD[0]
LD[1]
LD[2]
LD[3]
LD[4]
LD[5]
LD[6]
LD[7]
LD[8]
LD[9]
LD[10]
LD[11]
LD[12]
LD[13]
LD[14]
LD[15]
nCS[2]
nRD
LD[15]
LA[18]
LA[21]
LA[20]
LA[16]
nUB
nLB
CTS,RTS,RXD,TXD
EXTAL
EXTAL
XTAL
PA[1],PA[9],PIN69
PIN69
nLBSM,nRDM,nWRM
PB[1-2],PB[4-7],PB[10-11]
PB[1]
LA[8]
nLBS
LA[9]
LA[10]
nCS[3]
LA[11]
LA[0]
LA[12]
LA[18]
LA[13]
LA[14]
LA[15]
LA[16]
LA[17]
LD[13]
LD[14]
LD[15]
LD[12]
LD[11]
LD[10]
LD[9]
LD[8]
nWR
LD[7]
nRD
LD[6]
LD[5]
LD[4]
LD[3]
LD[2]
LA[1]
LD[1]
LA[2]
LD[0]
LA[3]
LA[4]
LA[5]
LA[6]
LA[7]
nIRQ[0]
nRD
nRD
nLBS
nLBS
nWR
nWR
RYnBY
nRST
LD[15]
LD[14]
LD[13]
LD[12]
LD[11]
LD[10]
LD[9]
LD[8]
LD[7]
LD[6]
LD[5]
LD[4]
LD[3]
LD[2]
LD[1]
LD[0]
nRDM
nLBSM
nWRM
LA[0]
nLBS
nBACK
PB[2]
LA[19]
LA[19]
nCS[6]
CLKO
C6
0.1u
R22
NC
R24
22
R21
100
J7
NC
J8
NC
C11
NC
C12
NC
C21
0.1u
R31
10K
R32
10K
R33
10K
R20
10K
IC23
14
7
C22
0.1u
IC1
CPU
1
AD0
2
AD1
3
AD2
4
Vss4
5
AD3
6
AD4
7
AD5
8
AD6
9
AD7
10
AD8
11
AD9
12
AD10
13
Vcc13
14
AD11
15
Vss15
16
AD12
17
AD13
18
AD14
19
AD15
24
Vss24
32
Vss32
38
Vcc38
41
Vss41
50
Vss50
55
PA4/WRL(WR)
56
PA5/WRH(LBS)
57
PA6/RD
59
Vss59
63
Vcc63
69
CK
70
Vss70
71
EXTAL
72
XTAL
73
Vcc73
76
RES
80
Vcc80
81
Vss81
82
Vss82
83
PB0/TP0/TIOCA2
84
PB1/TP1/TIOCB2
85
PB2/TP2/TIOCA3
86
PB3/TP3/TIOCB3
88
Vcc88
92
Vss92
RA6
68
1
2
3
4
5
6
7
8
RA8
68
1
2
3
4
5
6
7
8
L44
220
L45
220
L46
220
IC23
5
6
IC23
9
8
C23
0.1u
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
DG
DG
DG
DG
DG
DG
DG
+3.3V
J13 NC
J15 NC
R148
22
R149
22
nCS_ISDN
nCS_DSP
C49
0.1u
DG
+3.3V
+3.3V
C4
0.1u
C48
0.1u
+3.3V
+3.3V
R34
10K
R35
68
R29
68
R30
150
C20
0.1u
DG
+3.3V
J27 NC
+3.3V
J29 NC
DG
C82
0.1u
C83
0.1u
C84
0.1u
C85
0.1u
C86
0.1u
C87
0.1u
+3.3V
+3.3V
DG
DG
TP77
TP104
TP93
TP120
TP80
TP391
TP419
TP88
TP95
TP105
TP103
TP74
TP84
TP89
TP390
TP691
TP420
TP429
TP681
TP690
TP428
TP112
TP14
TP87
TP114
TP82
TP76
TP101
TP287
TP113
TP78
TP106
TP81
TP73
TP79
TP108
TP86
TP102
TP111
TP85
TP713
TP90
TP75
TP83
TP283
IC20
14
7
IC30
14
7
FIL4
1
2
3
FIL3
1
2
3
IC28
1
2
3
IC28
4
5
6
IC28
9
10
8
IC28
12
13
11
IC28
14
7
RA11
1K
1
2
3
4
5
6
7
8
9
10
RA13
1K
1
2
3
4
5
6
7
8
9
10
RA10
1K
1
2
3
4
5
6
7
8
9
10
RA26
1K
1
2
3
4
5
6
7
8
9
10
RA12
1K
1
2
3
4
5
6
7
8
9
10
IC3
4Mbit(8Mbit)SRAM
1 A4
2 A3
3 A2
4 A1
5 A0
6 CS1
7
I/O0
8
I/O1
9
I/O2
10
I/O3
11
VDD11
12
GND12
13
I/O4
14
I/O5
15
I/O6
16
I/O7
17 WE
18 A17
19 A16
20 A15
21 A14
22 A13
23 A12
24 A11
25 A10
26 A9
27 A8
28 CS2
29
I/O8
30
I/O9
31
I/O10
32
I/O11
33
VDD33
34
GND34
35
I/O12
36
I/O13
37
I/O14
38
I/O15
39 LB
40 UB
41 OF
42 A7
43 A6
44 A5
IC4
NC
1 A4
2 A3
3 A2
4 A1
5 A0
6 CS1
7
I/O0
8
I/O1
9
I/O2
10
I/O3
11
VDD11
12
GND12
13
I/O4
14
I/O5
15
I/O6
16
I/O7
17 WE
18 A17
19 A16
20 A15
21 A14
22 A13
23 A12
24 A11
25 A10
26 A9
27 A8
28 CS2
29
I/O8
30
I/O9
31
I/O10
32
I/O11
33
VDD33
34
GND34
35
I/O12
36
I/O13
37
I/O14
38
I/O15
39 LB
40 UB
41 OF
42 A7
43 A6
44 A5
10
9
8
IC24
14
7
IC31
14
7
X1
12.288M
1
2
3
R98
NC
TP107
IC30
11
CLK
12
D
9
Q
10
SET
13
RESET
8
Q
TP433
4
5
6
TP125
TP146
IC7
1 Xin
2
GND
3
S1
4
S0
5 SSCLK
6
FASEL
7
VDD
8 XOUT
R99
330
R23
NC
C7
NC
CLK0
nCS_ISDN
nCS_DSP
C2
NC
C1
0.1u
FIL5
1
2
3
J28
0
J30
0
TP392
TP394
3.3V
0
3.3V
12.288MHz
0
3.3V
0
3.3V
0
22
KX-TDA0290CJ / KX-TDA0290CE
1.8.2.
No.2
Change from the Original Service Manual Section 15.2.
KX-TDA0290CJ/KX-TDA0290CE MAIN BOARD No.2  1/2
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
CT_D[0-7]
EC_INT,EC_DET
P2[2]
P2[3]
CT_NETREF,CT_FRAME,CT_C8,CT_LOS
P1[1]
P1[2]
P2[2-3]
P1[3]
P1[0-4]
P1[4]
EC_AD[0-15]
nRST,nIRQ[1],nWAIT,nBREQ,nBACK
EC_CLK,EC_STOP,EC_TRDY,EC_PERR,EC_FRAME,EC_PAR,EC_BE[0-1],EC_IDSEL,EC_nRST
nRD,nWR,nLBS
LD[0-15]
P1[0]
LA[0-21]
LA[2]
LA[3]
LD[1]
LA[4]
LD[2]
LD[3]
LA[11]
LA[8]
LA[12]
LA[9]
LA[10]
LD[7]
LA[0]
LA[1]
LA[5]
LA[6]
LA[7]
LD[4]
LD[6]
nCS[0-4],nCS[6]
LD[0]
LD[5]
P1[0-4]
P1[0-4]
nBACK
nBREQ
LnRST
P2[2]
P2[3]
nRST
C16M
nHW_FH1
DHW[0],DSTI,HW_CLK[0-1],UHW[0],nHW_FH,nSHW_FH
CT_LOS
R47
150
D2
1
2
R39
150
R44
150
R48
150
R46
150
D3
1
2
R43
150
D4
1
2
D1
1
2
3
4
D5
1
2
R40
150
D6
1
2
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
DG
DG
C32
0.1u
DG
R73
22
R131
10K
X2
16.384MHz
IC29
11
10
IC29
9
8
DG
+3.3V
DG
C24
12p
IC29
13
12
IC29
3
4
R100
150
DG
C33
0.1u
IC29
5
6
IC29
14
7
C25
15p
R77
2.2K
R71
1M
IC29
1
2
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
ISDN_RST
DSP_nRST
+3.3V
nTxMF
LOOPB
C39
0.01u
J14
NC
+3.3V
R133
10K
R136
10K R137
10K
DG
R135
10K
R134
10K
+3.3V
HRDY
nPWRST
+3.3V
DG
R49
1K
R51
NC
+3.3V
DG
C38
0.01u
R178
10K
C60
0.1u
DG
R63
NC
R56
NC
R54
1K
R67
10K
R55
1K
+3.3V
R64
NC
R60
1K
R58
1K
R70
NC
R59
1K
R57
1K
R65
NC
R68
NC
R53
1K
R66
NC
R69
NC
R179
10K
DG
TP141
TP518
TP142
TP521
TP140
TP577
TP575
TP520
TP572
TP586
TP687
TP688
TP576
TP144
TP573 TP574
TP580
TP582
TP519
TP143
TP130
TP126
TP138
TP139
TP132
TP578
TP134
TP133
TP137
TP127
TP131
TP135
TP136
TP128
TP129
TP548
TP556
TP530
TP528
TP581
TP531
TP511
TP564
TP562
TP568
TP539
TP540
TP537
TP509
TP559
TP541
TP510
TP583
TP538
TP555
TP551
TP536
TP532
TP522
TP543
TP514
TP533
TP560
TP512
TP553
TP516
TP529
TP535
TP527
TP547
TP534
TP557
TP552
TP558
TP515
TP513
TP542
TP523
TP561
TP545
TP524
TP544
TP563
TP565
TP554
TP550
TP566
TP569
TP525
TP546
TP571
TP549
TP567
FIL7
1
2
3
RA40
10K
1
2
3
4
5
6
7
8
9
10
RA27
10K
1
2
3
4
5
6
7
8
9
10
RA35
10K
1
2
3
4
5
6
7
8
9
10
RA28
10K
1
2
3
4
5
6
7
8
9
10
Q4
Q2
Q1
Q5
Q8
Q7
Q3
Q6
IC2
ASIC
3
PLLGND
4
PLLCLK
5
VDD5
39
LA[12]
40
LA[11]
41
LA[10]
42
LA[9]
43
LA[8]
45
LA[7]
46
LA[6]
47
LA[5]
48
LA[4]
49
LA[3]
50
LA[2]
51
LA[1]
52
LA[0]
151 P1[0]
152 P1[1]
153 P1[2]
154 P1[3]
155 P1[4]
156 P1[5]
157 P1[6]
158 P1[7]
161 P2[0]
162 P2[1]
163 P2[2]
164 P2[3]
165 P2[4]
166 P2[5]
167 P2[6]
168 P2[7]
170 P3[0]
171 P3[1]
172 P3[2]
173 P3[3]
174 P3[4]
175 P3[5]
176 P3[6]
177 P3[7]
2
VDD2
6
PLLAT1
12
LD[7]
13
LD[6]
14
LD[5]
15
LD[4]
16
LD[3]
17
LD[2]
18
LD[1]
19
LD[0]
20
VDD20
32
BREQ
33
BACK
34
BGAK
36
VDD36
37
SBREQ
38
SBACK
53
VDD53
63
VDD63
77
VDD77
87
VDD87
106
VDD106
120
VDD120
132
VDD132
133
C_CS[3]
134
C_CS[2]
135
C_CS[1]
136
C_CS[0]
137
DCLK
138
DOUT
139
DIN
140
CP[0]
142 P0[0]
143 P0[1]
144 P0[2]
145 P0[3]
146 P0[4]
147 P0[5]
148 P0[6]
149 P0[7]
183 AX[0]
184 AX[1]
185 AX[2]
186 AX[3]
187 AX[4]
188 AX[5]
189 AX[6]
190 AX[7]
192 P4[0]
193 P4[1]
194 P4[2]
195 P4[3]
196 P4[4]
197 P4[5]
198 P4[6]
199 P4[7]
201 P5[0]
202 P5[1]
203 P5[2]
204 P5[3]
205 P5[4]
206 P5[5]
207 P5[6]
208 P5[7]
IC24
1
2
3
TP20
TP8
TP6
R36
NC
R5
NC
IC21
NC
3
CLK
2
D
5
Q
4
SET
1
RESET
6
Q
TP18
IC21
NC
11
CLK
12
D
9
Q
10
SET
13
RESET
8
Q
+3.3V
R50
NC
TP9
TP10
TP13
nHW_FH1
C17
NC
+3.3V
DG
IC21
NC
14
7
+3.3V
R52
NC
TP16
R37
NC
TP15
TP7
C16M
FH1
nRST
PWRS
CP0
IC6
M/R
2
1
SUB
3 GND
4
VOUT
5
VCC
TERM
TP145
R145
10K
FIL6
1
2
3
DG
+3.3V +3.3V
R180
10K
R181
10K
J3
0
FLOCK
RA25
1K
1
2
3
4
5
6
7
8
9
10
Normal:0V
3.3V:OFF
0V:ON
3.3V
0V
16.384MHz
23
KX-TDA0290CJ / KX-TDA0290CE
KX-TDA0290CJ/KX-TDA0290CE MAIN BOARD No.2  2/2
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
EC_AD[0]
CT_FRAME
EC_AD[2]
EC_nRST
EC_AD[3]
CT_FRAME
EC_IDSEL
CT_C8
CT_D[3]
EC_BE[1]
CT_D[7]
CT_D[2]
EC_BE[0]
CT_D[0]
EC_PAR
CT_D[1]
EC_FRAME
CT_D[7]
EC_CLK
EC_AD[11]
CT_D[6]
EC_BE[0]
CT_D[4]
EC_IDSEL
CT_D[5]
EC_FRAME
CT_C8
EC_AD[12]
EC_AD[13]
EC_AD[14]
EC_AD[9]
EC_AD[15]
EC_BE[1]
EC_AD[8]
EC_nRST
EC_AD[9]
EC_AD[10]
EC_AD[11]
EC_AD[5]
EC_AD[4]
CT_LOS
EC_AD[6]
EC_AD[7]
EC_CLK
EC_AD[1]
EC_STOP
EC_AD[1]
EC_AD[3]
EC_AD[5]
EC_AD[7]
EC_AD[13]
EC_AD[15]
EC_DET
CT_D[3]
CT_D[5]
EC_TRDY
EC_AD[0]
EC_AD[2]
EC_AD[4]
EC_AD[6]
EC_AD[8]
EC_AD[10]
EC_AD[12]
EC_AD[14]
EC_INT
CT_D[1]
CT_D[0]
CT_D[2]
CT_D[4]
CT_D[6]
EC_PAR
EC_PERR
CT_C8
EC_AD[0]
EC_BE[0]
EC_AD[2]
EC_AD[1]
EC_AD[3]
EC_AD[4]
EC_AD[5]
EC_AD[14]
EC_AD[15]
EC_BE[1]
CT_D[0]
CT_D[1]
EC_STOP
nRD
CT_FRAME
nWR
EC_CLK
EC_AD[10]
CT_D[6]
EC_AD[11]
CT_D[7]
CT_D[2]
EC_AD[12]
EC_INT
CT_D[3]
EC_AD[13]
EC_DET
CT_D[4]
EC_FRAME
EC_AD[6]
CT_D[5]
EC_TRDY
EC_AD[7]
EC_AD[8]
EC_AD[9]
nCS[1]
EC_IDSEL
EC_PERR
EC_PAR
CT_NETREF
nWAIT
nIRQ[1]
nCS[2]
nCS[6]
CT_NETREF
nHALT
EC_nRST
CLKOUT
HW_CLK[0]
HW_CLK[1]
UHW[0]
DHW[0]
nHW_FH
nSHW_FH
R128
220
R126
22
R90
1K
R127
22
R130 22
R129 22
R125
22
R124
22
R89
10K
R123
22
+3.3V
+3.3V
+3.3V
+40V
DG
P.G
DG
DG
nHALT
L77
220
L60
220
L70
220
L68
220
R91
10K
R132
10K
L56
220
R115
NC
R104
NC
L76
220
L71
220
R97
1K
L65
220
L61
220
DG
R92
1K
L75
220
L73
220
L55
220
L57
220
L63
220
DG
R120
NC
L59
220
L66
220
R117
10K
L74
220
L78
220
L69
220
DG
L58
220
R95
100
R103
1K
L62
220
R93
1K
R87
22
L67
220
DG
L72
220
R88
10K
R102
1K
R119
NC
R94
22
R79
22
L64
220
L81
220
R114
1K
R109
1K
R118
NC
R108
1K
+3.3V
+3.3V
+3.3V
C41 0.1u
C42 0.1u
C43 0.1u
C44 0.1u
C45 0.1u
DG
R142
100
R143
1K
R144
22
R139
10K
R140
1K
R141
1K
R138
1K
DG
R150
1K
R151
NC
R152
10K
+15V
L79
220
C59
330p
DG
+3.3V
DG
DG
C61
NC
C88 0.1u
C89 0.1u
C90 0.1u
C91 0.1u
C92 0.1u
C93 0.1u
C94 0.1u
C95 0.1u
C96 0.1u
TP684
TP588
TP506
TP683
TP714
TP591
TP717
TP596
TP682
TP716
TP680
TP652
TP715
TP653
TP679
TP672
TP627
TP650
TP654
TP608
TP620
TP662
TP607
TP678
TP644
TP649
TP663
TP651
TP645
TP635
TP647
TP598
TP609
TP638
TP643
TP585
TP648
TP610
TP660
TP667
TP606
TP674
TP603
TP605
TP637
TP623
TP671
TP666
TP639
TP619
TP604
TP641
TP601
TP611
TP664
TP659
TP614
TP602
TP655
TP640
TP642
TP665
TP668
TP673
TP597
TP676
TP625
TP599
TP618
TP613
TP584
TP630
TP633
TP632
TP505
TP646
TP675
TP636
TP631
TP626
TP634
TP612
TP621
TP670
TP658
TP624
TP656
TP628
TP617
TP615
TP629
TP657
TP622
TP616
TP677
TP661
FIL9
1
2
3
FIL12
1
2
3
Q12
E
C
B
IC2
ASIC
107
TCK
108
TDI
109
TDO
110
TRST
111
TMS
121
LUHW[0]
122
LDHW[0]
123
HW_CLK[0]
124
HW_CLK[1]
125
HW_FH
126
L_NETREF
127
LDHW[1]
128
LUHW[1]
129
SHW_CLK
130
SHW_FH
1
GND1
7
IRQ[1]
8
IRQ[0]
9
CS[1]
10
CS[0]
11
GND11
21
GND21
22
ALE
23
CS_DMA
24
CS_SAM
25
CSI
26
RD
27
WR
28
L_NRST
29
GND29
30
WAIT
31
RESET
35
GND35
44
GND44
54
RINGER
55
CT_FRAME_A
56
CT_C8_A
57
CT_NETREF
58
GND58
59
CT_D[7]
60
CT_D[6]
61
CT_D[5]
62
CT_D[4]
64
GND64
65
CT_D[3]
66
CT_D[2]
67
CT_D[1]
68
CT_D[0]
69
GND69
70
EC_DET
71
EC_INT
72
EC_AD[15]
73
EC_AD[14]
74
EC_AD[13]
75
EC_AD[12]
76
GND76
78
EC_AD[11]
79
EC_AD[10]
80
EC_AD[9]
81
EC_AD[8]
82
GND82
83
EC_AD[7]
84
EC_AD[6]
85
EC_AD[5]
86
EC_AD[4]
88
GND88
89
EC_AD[3]
90
EC_AD[2]
91
EC_AD[1]
92
EC_AD[0]
93
GND93
94
EC_NRST
95
EC_IDSEL
96
EC_BE[1]
97
EC_BE[0]
98
GND98
99
EC_PAR
100
EC_FRAME
101
EC_PERR
102
EC_TRDY
103
EC_STOP
104
GND104
105
EC_CLK
112
GND112
113
MODE[5]
114
MODE[4]
115
MODE[3]
116
MODE[2]
117
MODE[1]
118
MODE[0]
119
GND119
131
GND131
141
GND141
150
GND150
159
VDD159
160
GND160
169
TEST0
178
VDD178
179
GND179
180
AVDD180
181
VREFPLUS
182
VREFMINUS
191
AVDD191
200
TEST1
CN1
A1
+15VPTA1
B1
+15VPTB1
A2
+40V
B2
+15V
A3
POWER_GNDA3
B3
POWER_GNDB3
A4
EC_CLK
B4
EC_nSTOP
A5
GNDA5
B5
GNDB5
A6
EC_nTRDY
B6
EC_nPERR
A7
EC_nFRAM
B7
EC_PAR
A8
EC_nCBE[0]
B8
EC_nCBE[1]
A9
EC_IDSEL
B9
EC_nRST
A10
GNDA10
B10
GNDB10
A11
EC_AD[0]
B11
EC_AD[1]
A12
EC_AD[2]
B12
EC_AD[3]
A13
EC_AD[4]
B13
EC_AD[5]
A14
GNDA14
B14
GNDB14
A15
EC_AD[6]
B15
EC_AD[7]
A16
EC_AD[8]
B16
EC_AD[9]
A17
EC_AD[10]
B17
EC_AD[11]
A18
GNDA18
B18
ReservedB18
A19
EC_AD[12]
EC_AD[13]
B19
A20
EC_AD[14]
B20
EC_AD[15]
A21
EC_nINT
B21
EC_nCDET
A22
GNDA22
B22
ReservedB22
A23
CT_D[0]
B23
CT_D[1]
A24
CT_D[2]
B24
CT_D[3]
A25
CT_D[4]
B25
CT_D[5]
A26
CT_D[6]
B26
CT_D[7]
A27
GNDA27
B27
ReservedB27
A28
CT_NETRE
B28
CT_C8
A29
CT_FRAME
B29
nLOS
A30
GNDA30
B30
GNDB30
A31
ReservedA31
B31
ReservedB31
A32
ReservedA32
B32
ReservedB32
A33
ReservedA33
B33
ReservedB33
A34
TXD2
B34
RXD2
A35
ReservedA35
B35
ReservedB35
A36
ReservedA36
B36
ReservedB36
A37
ReservedA37
B37
ReservedB37
A38
+30VA38
B38
+30VB38
A39
RINGER
B39
RING_SYNC
A40
nHALT
B40
RING_SIN
A41
GNDA41
B41
(+3.3V)
A42
(DC_ALM)
B42
(AC_ALM)
A43
(nEXTPOW[0])
B43
(nEXTPOW[1])
A44
DIAG_R
B44
DIAG_T
A45
GNDA45
B45
RINGER_AC
RA37
10K
1
2
3
4
5
6
7
8
9
10
RA36
10K
1
2
3
4
5
6
7
8
9
10
RA38
10K
1
2
3
4
5
6
7
8
9
10
RA39
10K
1
2
3
4
5
6
7
8
9
10
CLKOUT
FH
S_FH
DHW0
UHW0
NETR
HWC1
HWC0
GND
TP261
TP94
R153
47
R154
47
R155
47
R156
47
R157
47
R158
47
R159
47
R160
47
R161
47
R162
47
R163
47
R164
47
R165
47
R166
47
R167
47
R168
47
R169
47
R170
47
R171
47
R172
47
R173
47
R174
47
R175
47
R176
47
R116
47
R113
47
R112
47
R111
47
R110
47
R106
47
R105
47
R121
NC
R107
10K
+15V
IP1
32V/5A
3.3V
0
2.048MHz
CLKOUT
3.3V
0
8KHz
HW-FH
3.3V
0
3.3V
0
3.3V
0
8.192 MHz
0
2.048MHz
3.3V
3.3V
0V
3.3V
0V
8.192MHz
Normal:3.3V
Normal:3.3V
3.3V
0V
Normal:3.3V
3.3V
0V
3.3V
0V
3.3V
0V
Normal:3.3V
3.3V
0V
3.3V
0V
1.536MHz
3.3V
0V
8KHz
8.192MHz
Normal:3.3V
3.3V
0V
Normal:3.3V
24
KX-TDA0290CJ / KX-TDA0290CE
1.8.3.
No.3
Change from the Original Service Manual Section 15.3.
KX-TDA0290CJ/KX-TDA0290CE MAIN BOARD No.3  1/2
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
Tx-
RX-
TX+
Rx+
FIL301
1
2
3
4
5
6
7
8
SA301
310V
SA306
310V
R376
220
RL301
1 +
2
3
4
5
6
7
8
-
D314
1
2
RL302
1 +
2
3
4
5
6
7
8
-
D315
1
2
SA302
310V
SA305
310V
R378
220
+15V
+15V
DG
DG
LOOPB
R381
1K
DG
SW302
1
2
3
4
5
6
7
8
9
10
11
12
FG
SA303
1000V
FG
DG
DG
DG
J323
0
FG2
J324
0
TP395
TP401
TP398
TP405
TP397
TP404
CN6
(Send)
1
1
2
2
CN7
(Receive)
1
1
2
2
CN4
RJ45
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
Q302
E
C
B
Q301
E
C
B
T301
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
X3
20M
TP177
DG
+3.3V
DG
C339
NC
FIL311
1
2
3
DG
R358
0
TP262
C330
0.1u
DG
C331
0.1u
C315
0.1u
DG
DG
C341
0.1u
C321
0.1u
C320
0.1u
TX+
TX-
RX+
RX-
FG2
R307
75
RL303
1 +
2
3
4
5
6
7
8
-
D312
1
2
+15V
TP110
TP123
TP122
TP121
R316
6.8 1%
R317
6.8 1%
R314
5.1 1%
R315
5.1 1%
R390
NC
R391
NC
R392
NC
R393
NC
J308
1
2
3
J309
1
2
3
FG
SFG
C316
NC
C317
NC
C318
12p
C319
18p
TP91
TP96
TP162
TP175
TP97
TP176
3V
0
-3V
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