KX-TDA6181X - Panasonic PBX Service Manual (repair manual). Page 71

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17.2. BOTTOM VIEW
KX-TDA6181X ELCOT16 BOARD BOTTOM VIEW 
J5B
R50B
R51B
J5A
D3A
D4A
D4B
D3B
D2B
40
39
20
19
22
21
25
30
35
15
10
5
2
1
40
39
20
19
22
21
25
30
35
15
10
5
2
1
PL1B
PC2B
PL2B PC1B
PC4B
R7B
R51A
R6A
PC5B
PL1A
PC2A
PC1 A
R2A
R2B
J8B
J9B
J9A
D18
ZNR2A
R6B
Q6B
Q6A
R81B
R7A
R81A
PC5A
R23A
C5A
R12A
R10A
R13A
R14B
C5B
R52A
R90B
R53A
C51A
C50A
RA1A
R14A
R15A
C7A
PC4A
PL2A
IC1D
R89B
R87B
RA1B
D8A
D8B
Q7B
R13B
C51B C53B
R23B
Q7A
R52B C50B
D5B
C7B
R15B
R80B
ZNR2B
R5A
J8A
J5D
R50D
R51D
J5C
D3C
D4C
D4D
D3D
D2D
PL1D
PC2D
PL2D PC1D
PC4D
R7D
R51C
R6C
PC5D
PL1C
PC2C
PC1C
R2C
R2D
J8D
J9D
J9C
D1D
ZNR2C
R6D
Q6D
Q6C
R81D
R7C
R81C
PC5C
R23C
C5C
R12C
R10C
17
14
8
17
14
8
R13C
R14D
C5D
R52C
R90D
R53C
C51C
C50C
RA1C
R14C
IC1
1
IC8
R15C
C7C
PC4C
PL2C
IC1B
R89D
RA1D
D8C
D8D
Q7D
R13D
R73D
C51D C53D
R23D
Q7C
R52D C50D
D5D
C7D
R15D
R80D
ZNR2D
R5C
J8A
J5F
R50F
R51F
J5E
D3E
D4E
D4F
D3F
D2F
PL1F
PC2F
PL2F PC1F
PC4F
R7F
R51E
R6E
PC5F
PL1E
PC2E
PC1 E
R2E
R2F
J8F
J9F
J9E
D1F
ZNR2E
R6F
Q6F
Q6E
R81F
R7E
R81E
PC5E
R23E
C5E
R12E
R10E
RA405
RA406
LA401
LA402
LA404
LA403
RA407
RA408
R13E
R14F
C5F
R52E
R90F
R53E
C51E
C50E
RA1E
R14E
R15E
C7E
PC4E
PL2E
IC403
17
32
16
C402
C62
C31
C26
R91
R92
C24
C60
C33
R1
15
R1
16
R1
14
R1
13
C449
A45 A40
A35
A30
A25
A20
A15
A10
A5
A1
B45 B40
B35
B30
B25
B20
B15
B10
B5
B1
C435
C455
C429
GND-2
1
IC1F
R89F
R87F
RA1F
D8E
D8F
Q7F
R13F
C51F C53F
R23F
Q7E
R52F C50F
D5F
C7F
R15F
R80F
ZNR2F
R5E
J8E
J5G
R50G
R51G
J5G
D3G
D4G
D4H
D3H
D2H
PL1H
PC2H
PL2H PC1H
PC4H
R7H
R51G
R6G
PC5H
PL1G
PC2G
PC1G
R2G
R2H
J8H
J9H
J9G
D1H
ZNR2G
R6H
Q6H
Q6G
R81H
R7G
R81G
PC5G
R23G
C5G
R12G
R10G
RA420
RA417
RA428
LA409
LA407
LA408
RA427
RA425
RA424
LA406
RA421
RA414
RA416
RA415
R13G
R14H
C5H
R52G
R90H
R53G
R410
C51G
C50G
RA1G
R14G
R15G
C7G
PC4G
PL2G
IC1H
R89H
RA1H
D8G
D8H
Q7H
R13H
R73H
C51H C53H
R23H
Q7G
R52H C50H
D5H
C7H
R15H
Q401
R401
L401
R80H
ZNR2H
R5G
J8G
J5J
J4J
R50J
R51J
J5I
D3I
D4I
D4J
D3J
D2J
PL1J
PC2J
PL2J PC1J
PC4J
R7J
R51I
R6I
PC5J
PL1I
PC2I
PC1I
R2I
R2J
J8J
J9J
J9I                             
D1J
ZNR2I
R6J
Q6J
Q6I
R81J
R7I
R81I
PC5I
R23I
C5I
R12I
R10I
R13I
FIL403
C413
C412
R407
R15J
R14J
C5J
R52I
R90J
R53I
C51I
C50I
RA1I
R14I
R15I
C7I
PC4I
PL2I
IC1J
R89J
RA1J
D8I
D8J
Q7J
R13J
R87J
C51J C53J
R23J
Q7I
R52J C50J
D5J
C7J
R80J
ZNR2J
R5I
J8I
J5L
R50L
R51L
J5K
D3K
D4K
D4L
D3L
D2L
PL1L
PC2L
PL2L PC1L
PC4L
R7L
R51K
R6K
PC5L
PL1K
PC2K
PC1K
R2K
R2L
J8L
J9L
J9K
D1L
ZNR2K
R6L
Q6L
Q6K
R81L
R7K
R81K
PC5K
R23K
C5K
R12K
R10K
1
3
4
U1
5
R13K
R14L
C5L
R52K
R90L
R53K
C51K
C50K
RA1K
R14K
R15K
C7K
PC4K
PL2K
IC1L
R89L
RA1L
D8K
D8L
Q7L
R13L
R87L
C51L C53L
R23L
Q7K
R52L C50L
D5L
C7L
R15L
R80L
ZNR2L
R5K
J8K
J5N
R50N
R51N
J5M
D3M
D4M
D4N
D3N
D2N
PL1N
PC2N
PL2N PC1N
PC4N
R7N
R51M
R6M
PC5N
PL1M
PC2M
PC1M
R2M
1
2
3
4
1
2
25
20
15
10
5
1
26
35
40
45
50
3
4
R2N
J8N
J9N
J9M
D1N
ZNR2M
R6N
Q6N
Q6M
R81N
R7M
R81M
PC5M
R23M
C5M
R12M
R10M
R13M
R14N
C5N
R52M
R90N
R53M
C51M
C50M
RA1M
R14M
R15M
C7M
PC4M
PL2M
IC1N
R89N
RA1N
D8M
D8N
Q7N
R13N
R87N
C51N C53N
R23N
Q7M
R52N C50N
D5N
C7N
R15N
R80N
ZNR2N
R5M
J8M
J5P
R50P
R51P
J5O
D3O
D4O
D4P
D3P
D2P
PL1P
PC2P
PL2P
PC1P
PC4P
R7P
R51O
R6O
PC5P
PL1O
PC2O
PC1O
R2O
R2P
J8P
J9P
J17
J9O
D1P
ZNR2O
R6P
Q6P
Q6O
R81P
R7O
R81O
PC5O
R23O
C5O
R12O
R10O
7
1
IC13
IC12
8
R1
19
RA7
RA3
RA2
RA1
RA4
C422
C442
GND-1
RA5
RA6
+5V
RA8
3
4
1
IC2
5
14
R1
IC1
13
54
R13O
R14P
C5P
R52O
R90P
R53O
C51O
C50O
RA1O
R14O
R15O
C7O
PC4O
PL2O
C68
C9
IP3
40
35
30
25
39
20
19
15
10
5
1
2
21
22
40
35
30
25
39
20
18
15
10
5
1
2
21
22
IP2
C8
L31
C412
C441
D1
C6
Q1
D2
L32
Q2
R2
C7
R120
C66
C65
R117
R118
C443
C423
R100
C450
C430
C444
C426
C446
RA14
R39
RA11
R37
R32
C424
IC1P
R89P
RA1P
D8P
D8P
Q7P
R13P
R87P
C51P C53P
R23P
Q7O
R52P C50P
D5P
C7P
R15P
C45
C39
R80P
ZNR2P
R5O
J8O
7
1
8
14
J1
1
J12
J13
J14
J15
J16
J49
J48
J47
J8
J7
J6
J5
J4
J3
J2
J1
R1
12
L34
L101
LA1
LA2
LA3
LA4
LA5
LA6
RA21
RA23
RA22
RA24
RA25
RA26
RA32
RA28
RA29
RA31
RA17
R
111
R132
RA18
J9
IP1
D3
Q6
C23
D4
RA9
RA12
16.384M
RA10
RA15
RA13
RA18
J50
J55
J51
J54
J53
J52
C20
RA30
R82
R88
C437
C457
C436
C456
C452
C432
R75
R89
R90
C458
R93
R94
C438
C459
R162
C460
C440
+3.3V
C439
R76
C63
+15V
FIL404
J408
J407
R402
L402
L403
R403 R404
J406
J405
1
8
4
IC404
5
12.288M
RA426
C453
C433
J3H
J3G
J3F
J3E
J3D
J3C
J3B
J3A
FG
J3I
J3J
J3K
J3L
J3M
J3N
J3O
J3P
71
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