Read Panasonic KX-TDA0290CJ / KX-TDA0290CE (serv.man3) Service Manual Supplement online
25
KX-TDA0290CJ / KX-TDA0290CE
KX-TDA0290CJ/KX-TDA0290CE MAIN BOARD No.3 2/2
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
(13)
(14)
(15)
(16)
nLBS,nRD,nWR
LA[0-21]
LA[0]
LA[1]
LA[2]
LA[3]
LA[4]
UHW[0]
nRD
nRxMF
nWR2
DHW[0]
nTxMF
DSTI
nCS_ISDN
DHW[0],DSTI,HW_CLK[0-1],UHW[0],nHW_FH,nSHW_FH
nINT_ISDN
REF_CLK
HW_CLK[0]
nHW_FH
LD[0-15]
LD[7]
LD[6]
LD[5]
LD[4]
LD[3]
LD[2]
LD[1]
LD[0]
LD[6]
LD[5]
LD[4]
LD[3]
LD[2]
LD[1]
LD[0]
ISDN_RST
nLOS
X5
20M
R332
1M
L301
0
R325
10k
R328
10k
R318
10k
R319
10k
R320
10k
R321
10k
R322
1k
R335
22
R340
10k
R342
10k
R346
220
R341
22
R338
22
R350
NC
R351
1k
C304
0.1
DG
DG
DG
DG
DG
DG
nINT_ISDN
nWR2
ISDN_RST
DG
nTxMF
nRxMF
nLOS
+3.3V
nCS_ISDN
R343
10k
R337
68
TP443
TP451
TP192
TP450
TP226
TP182
TP188
TP444
TP440
TP225
TP229
TP441
TP445
TP442
TP219
TP448
TP286
TP216
TP210
TP209
TP208
TP207
TP449
TP224
TP446
TP218
TP223
TP447
TP237
TP217
TP186
TP197
TP215
TP194
TP234
TP222
TP473
FIL310
1
2
3
D313
1
2
3
2
3
4
5
6
SW301
1
2
3
4
5
6
7
8
9
10
11
12
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
R336
1M
L302
0
TP205
TP187
TP189
TP117
TP118
CLKOUT
TP243
TP244
TP245
TP251
TP252
TP246
TP247
TP248
TP249
TP250
TP109
R312
1k
TP253
TP254
TP255
TP256
R330 10k
+3.3V
TP257
R313
1k
R329
1k
R352
1k
DG
R333
NC
R309
1k
+3.3V
R310
1k
R311
1k
R344 10k
+3.3V
R353 10k
+3.3V
R323
NC
TP116
TP115
R324
1k
R339 10k
+3.3V
J303
NC
TP260
C302
0.1
C311
0.1u
C314
0.1
C307
0.1
C305
0.1
C306
0.1
nHW_FH1
J311 NC
DSTI
REFC
LOCK
R345 10k
+3.3V
TP151
TP156
TP157
TP158
TP159
TP160
TP161
TP165
TP166
TP179
TP181
TP183
TP190
R306
120
DG
C342
0.01u
TP275
TP276
TP284
+3.3V
DG
R382
220
Q303
E
C
B
DG
TERM
DG
IC301
1
NC1
2
AC1
3
AC2
4
AC3
5
AC4
6 GNDARX
7 RTIP
8 RRING
9
VDARX
10 VDD1
11 VSS1
12 TXA
13 TXB
14
RXDLCK
15
RXDL
16
TXMF
17
RXMF/TXFP
18 BS/LS
19
NC19
20
NC20
21
NC21
22
EXclk
23
C4b
24
F0b
25
RXFP
26 IC1
27 VSS2
28 VDD2
29 VDDATX
30 TTIP
31 TRING
32 GNDATX
33 Tdi
34 Tdo
35 Tms
36 Tclk
37 Trst
38
TXAO
39
NC39
40
NC40
41
NC41
42
NC42
43
LOS
44 IC2
45 IC3
46
TCDLCK
47
TXDL
48 S/FRExclki
49 VDD3
50 VSS3
51 OSC1
52 OSC2
53 VSS4
54 VDD4
55
CSTo
56
CSTi
57
DSTo
58
DSTi
59
DS/RD
60
NC60
61
NC61
62
NC62
63
CS
64
RESET
65
IRQ
66
D0
67
D1
68
D2
69
D3
70 VSS5
71 IC4
72 INT/MOT
73 VDD5
74
D4
75
D5
76
D6
77
D7
78
R/W/WR
79
AC0
80
NC80
IC302
9
OSCI
16
C1.5O
17
VDD17
18
LOCK
19
C2O
20
C4O
21
C19O
22
FLOCK
23
VSS23
24
IC24
25
C8O
26
C16O
27
C6O
28
VDD28
29
IM
30
IC30
31
VSS31
32
NC
33
IC33
34
IC34
35
VDD35
36
MS
37
IC37
38
IC38
39
IC39
40
FS2
41
FS1
42
IC42
43
IC43
44
TDO
45
TDI
46
TRST
47
TCK
48
TMS
1
VSS1
2
RST
3
IC3
4
IC4
5
IC5
6
REF
7
VDD7
8
OSCO
11
F16O
12
F0O
10
VSS10
13
RSP
14
TSP
15
F8O
C313
1u
R331
NC
C301
0.47u
2125
IC23
13
12
J304
0
J305 0
J310
0
R327
220
R334
220
FLOCK
FLOCK
F80
RXFP
L303
C308
12p
C309
18p
TP99
TP206
TP195
TP191
TP98
TP178
TP184
TP185
TP396
3.3V
0
4.096MHz
3.3V
0
2.048MHz
3.3V
0
8KHz
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