KX-TDA620BX (serv.man8) - Panasonic PBX Service Manual Supplement (repair manual). Page 43

Read Panasonic KX-TDA620BX (serv.man8) Service Manual Supplement online

43
KX-TDA620 Series
12.4. BUS-S Board No.3
KX-TDA620 Series BUS-S BOARD SCHEMATIC DIAGRAM No.3
3.3V
0V
3.3V
0V
D
F
E
C
B
A
H
G
4
7
6
5
3
2
8
11
10
9
D[31]
LA[13]
A[22]
A[18]
LA[4]
D[20]
LA[1]
LA[3]
A[9]
A[10]
LA[14]
A[17]
LA[9]
LD[13]
LD[2]
LA[15]
A[14]
LA[11]
LA[10]
A[12]
LA[16]
D[17]
LA[5]
D[23]
LD[9]
LD[1]
D[24]
A[19]
D[19]
D[26]
D[27]
LD[0]
A[3]
D[18]
LA[12]
LD[3]
A[4]
LD[4]
A[6]
LD[6]
LA[8]
A[2]
LA[7]
D[28]
LD[7]
D[25]
A[20]
]
9
2
[
D
]
3
1
[
A
D[16]
D[21]
D[30]
A[21]
A[11]
LD[11]
LD[10]
LA[2]
D[22]
LD[8]
A[5]
A[8]
A[7]
LD[14]
LA[6]
LD[15]
LD[5]
LD[12]
A[15]
A[13]
D[11]
D[5]
D[1]
D[12]
D[15]
A[4]
A[10]
A[11]
A[2]
A[12]
D[3]
A[7]
D[10]
D[13]
D[7]
D[14]
D[6]
A[5]
A[8]
A[6]
D[4]
A[3]
D[0]
D[9]
A[15]
D[2]
A[14]
D[8]
A[9]
LD[7]
LD[2]
LD[10]
LA[1]
LA[2]
LD[15]
LD[0]
A[18]
LD[6]
LD[8]
LA[8]
LD[12]
LD[3]
LA[10]
LD[14]
LD[5]
LD[11]
LD[4]
LA[6]
LD[13]
LA[11]
LA[9]
LA[4]
LA[13]
LD[1]
LA[5]
LA[7]
LA[1-16]
LA[14]
LA[3]
]
9
[
D
L
]
2
1
[
A
L
A[19]
nLB
nUB
L_nRD
L_nRD
L_nWE1
L_nWE0
L_nWE0
LA[15]
nCS0
nCS5
nCS4
D[4]
D[1]
LD[0]
D[6]
D[0-31]
D[0]
D[3]
D[9]
D[8]
D[15]
LD[14]
LD[12]
LD[1]
LD[3]
D[7]
D[12]
D[10]
D[13]
LD[2]
D[14]
D[5]
D[2]
LD[15]
D[11]
LD[13]
LA[1]
LA[3]
A[3]
A[10]
A[4]
LA[16]
A[7]
A[16]
LA[9]
LA[13]
A[2]
LA[6]
LA[11]
A[12]
A[6]
LA[15]
A[15]
A[14]
A[9]
A[8]
LA[5]
LA[10]
LA[4]
LA[12]
A[1]
A[11]
A[13]
A[5]
LA[7]
LA[2]
LA[8]
LA[14]
CKE
RD/nWR
nRD/nCAS
nRAS
nCS2
A[17]
LA[13]
LA[12]
LD[5]
LD[4]
LD[7]
LD[12]
LD[6]
]
2
[
D
L
]
2
[
A
L
LD[13]
LD[1]
LA[1]
LD[0]
LD[14]
LD[3]
LD[15]
LD[10]
LD[9]
LD[8]
LA[6]
LD[11]
LA[16]
LA[5]
LA[15]
LA[11]
LA[4]
LA[10]
LA[3]
LA[1-16]
LA[9]
LA[8]
LA[7]
LA[14]
LD[7]
LD[8]
LD[6]
LD[9]
LD[5]
LD[10]
LD[4]
LD[11]
LA[16]
+3.3V
+3.3V
+3.3V
DG
+3.3V
CKIO_SDRAM2
2:3F
TP3079
TP3078
C303
2.2u
TP3001
DG
DG
TP3002
DG
+3.3V
C302
1u
CKIO_SDRAM1
2:3F
C328
0.01u
R313
10k
R312
10k
EME
3D;7:10G
TP3077
R309
4.7k
DG
R310
0
NC
DG
DG
+3.3V
DG
DG
DG
DG
C315
2.2u
C314
1u
DG
DG
+3.3V
DG
DG
+3.3V
DG
DG
DG
TP3013
TP3012
C333
0.01u
C331
0.01u
DG
DG
+3.3VB
TP3080
L_nRD
8C;4:1D;4:9D
L_nWE0
1:4D;8D
CPU_nRESET
1:2B;1:3F;2:5D;2:7H
nCS0
2:5D;1D;7:10D
L_nWE1
1:4C;8D
nPWRST
1:4D;2:7H;4:11D
nCS4
1:4C;2:5E;1D;7:10D
nCS5
1:4C;2:5E;4:9D;7:12D
nCS4
1:4C;2:5E;7G;7:10D
nBACK_NEXUS
1:2B
TP3006
L_R/nW
8D;4:9D;5:1B
TP3004
TP3005
TP3003
nCS0
2:5D;7F;7:10D
R301
68
TP3018
TP3023
C313
0.01u
DG
TP3016
TP3019
TP3022
TP3029
TP3020
TP3026
TP3017
C312
0.01u
DG
TP3015
TP3025
TP3027
TP3014
+3.3V
+3.3V
TP3024
TP3028
TP3021
TP3048
RA301
22
4
3
2
1
8
7
6
5
TP3068
TP3047
IC308
1
#1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
TP3061
TP3039
RA302
22
4
3
2
1
8
7
6
5
TP3060
TP3069
TP3067
TP3073
+3.3V
IC307
1
#1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
TP3062
C324
0.1u
TP3063
TP3070
TP3043
TP3072
TP3038
DG
TP3052
TP3050
C325
0.1u
+3.3V
TP3049
RA304
22
4
3
2
1
8
7
6
5
TP3071
TP3074
DG
TP3064
TP3042
6
6
0
3
P
T
4
4
0
3
P
T
TP3040
RA303
22
4
3
2
1
8
7
6
5
TP3065
TP3075
TP3041
TP3046
TP3045
TP3053
TP3051
nCS2
2:5D
nWE2/DQM2
2:5F;6D;7:10G
nWE3/DQM3
2:5F;6D;7:12G
nRAS
2:5E;7:12H
nRD/nCAS
1:4C;2:5E;6C;7:12G
RD/nWR
2:5E;6D;7:10G
nWE1/DQM1
2:5F;6D;7:12G
nWE0/DQM0
2:5F;6D;7:10G
CKE
2:6F
A[1-22]
1:3A;2:1A;7:8C
D[0-31]
2:1A;7:8A
RA311
10k
1
2
3
4
5
6
7
8
RA310
10k
1
2
3
4
5
6
7
8
RA307
10k
1
2
3
4
5
6
7
8
RA306
10k
1
2
3
4
5
6
7
8
RA305
10k
1
2
3
4
5
6
7
8
V
3
.
3
+
V
3
.
3
+
RA312
10k
1
2
3
4
5
6
7
8
RA309
10k
1
2
3
4
5
6
7
8
RA308
10k
1
2
3
4
5
6
7
8
LA[1-16]
1:3A;4:1C;5:1B
LD[0-15]
1:3B;4:1E;5:1A
+3.3V
DG
C301
0.01u
IC309
1
#1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
nWE1/DQM1
2:5F;1F;7:12G
nWE0/DQM0
2:5F;1G;7:10G
nRD/nCAS
1:4C;2:5E;1F;7:12G
L_nWE1
1:4C;7H
TP3054
L_nWE0
1:4D;7H
L_nRD
7H;4:1D;4:9D
TP3055
TP3031
TP3030
TP3056
TP3032
nWE2/DQM2
2:5F;3G;7:10G
nWE3/DQM3
2:5F;3F;7:12G
RD/nWR
2:5E;1F;7:10G
R307
68
TP3058
R308
68
L_R/nW
2B;4:9D;5:1B
7
5
0
3
P
T
3
3
0
3
P
T
R306
68
9
5
0
3
P
T
5
3
0
3
P
T
TP3034
+3.3V
C326
0.1u
DG
DG
TP3036
TP3037
IC210
56
IC210
98
+3.3V
DG
C327
0.1u
C323
0.1u
DG
C311
0.1u
DG
+3.3V
R302
68
TP3081
TP3007
TP3009
TP3010
TP3008
J301
TP3082
TP3083
TP3084
L_nWE
4:9D
IC303
FLASH ROM
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
9
A19
10
A20
11
#WE
12
#RESET
14
#WP/ACC
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
13
A21
IC304
1A
4
2A
3
3A
2
4A
1
5A
0
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
ACS2/A18
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
#OE
42
A7
43
A6
44
A5
TP3076
DG
DG
DG
DG
DG
C309
0.1u
C306
0.1u
C304
0.1u
C310
0.1u
C308
0.1u
C307
0.1u
C305
0.1u
C321
0.1u
C318
0.1u
C316
0.1u
C322
0.1u
C320
0.1u
C319
0.1u
C317
0.1u
R311
68
RA313
68
4
3
2
1
8
7
6
5
R314
68
IC313
NC
1
2
4
DG
IC313
5
3
C334
0.1u
+3.3V
TP3085
EME
7G;7:10G
R303
68
TP3011
TP3086
TP3087
+3.3VB
DG
C335
0.1u
TP3088
nCS_CTSW
2:5E;4:11E;5:1B;7:10D
nCS_CCLINK
2:5D;4:11E;4:1B;7:12D
IC322
24
1
IC323
24
1
TP3089
IC322
5
3
C336
0.1u
IC323
5
3
DG
+3.3V
+3.3V
TP3090
TP3091
IC310
1
2
3
IC310
4
5
6
IC310
9
10
8
IC310
12
13
11
IC310
14
7
IC312
12
13
11
IC312
1
2
3
IC312
4
5
6
IC312
9
10
8
IC312
14
7
IC301
SDRAM
1
VDD1
2
DQ0
3
VDDQ3
4
DQ1
5
DQ2
6
VSSQ6
7
DQ3
8
DQ4
9
VDDQ9
10
DQ5
11
DQ6
12
VSSQ12
13
DQ7
14
VDD14
15
LDQM
16
#WE
17
#CAS
18
#RAS
19
#CS
20
A13(BA0)
21
A12(BA1)
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VDD27
28
VSS28
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC36
37
CKE
38
CLK
39
UDQM
40
NC40
41
VSS41
42
DQ8
43
VDDQ43
44
DQ9
45
DQ10
46
VSSQ46
47
DQ11
48
DQ12
49
VDDQ49
50
DQ13
51
DQ14
52
VSSQ52
53
DQ15
54
VSS54
IC302
SDRAM
1
VDD1
2
DQ0
3
VDDQ3
4
DQ1
5
DQ2
6
VSSQ6
7
DQ3
8
DQ4
9
VDDQ9
10
DQ5
11
DQ6
12
VSSQ12
13
DQ7
14
VDD14
15
LDQM
16
#WE
17
#CAS
18
#RAS
19
#CS
20
A13(BA0)
21
A12(BA1)
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VDD27
28
VSS28
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC36
37
CKE
38
CLK
39
UDQM
40
NC40
41
VSS41
42
DQ8
43
VDDQ43
44
DQ9
45
DQ10
46
VSSQ46
47
DQ11
48
DQ12
49
VDDQ49
50
DQ13
51
DQ14
52
VSSQ52
53
DQ15
54
VSS54
IC306
74LVC245
1D
IR
2A
1
3A
2
4A
3
5A
4
6A
5
7A
6
8A
7
9A
8
1
0
GND
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
/2G
20
VCC
IC305
74LVC245
1D
IR
2A
1
3A
2
4A
3
5A
4
6A
5
7A
6
8A
7
9A
8
1
0
GND
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
/2G
20
VCC
IC311
5
3
IC311
1
2
4
IC320
5
3
IC320
1
2
4
Display
Click on the first or last page to see other KX-TDA620BX (serv.man8) service manuals if exist.
Random: