PCB design resistor pads colour change

Hi,
I am using PADS layout. One of the previous design I have attached. It was done by some one. Could any one please tell me how the pad colour for resistor(R174) and capacitor(C291) and the mounting hole for connector (J12) is changed. what is the need for changing the pad colour? Please do see the attached file.

vikash,

select net first and then which net you want to change color select the net and then right click change color here i attached snap shot go through it

Thanks a lot for your help!!!!!!!

Hi,

Could you please tell me if I could use two vias in a same pad for conducting large current (about 8 amp). What are the pro's and con's. I am using a power via(0.7) which is larger than a standard via(0.2) for carrying 8amp current. I have attached the pic. please see to it.

Hi,

I am using a 4 layer PCB with GND and Power on layer 2 and 3 respectivelyand top and bottom for routing signals. All components I use are surface mount and I connect ground of all those components by layer 2. power of all components by layer 3 using vias over the components copper pads. After flooding when I look for connectivity error it shows as follows.





CONTINUITY ERRORS REPORT --



Isolated subnets for: 24V_DIGITAL

*** subnet # 1
PCI6.B2

*** subnet # 2
TP12.1

*** subnet # 3
PCI7.B2

*** subnet # 4
PCI7.B1

*** subnet # 5
PCI6.B1

*** subnet # 6
PCI5.B2

*** subnet # 7
PCI5.B1

*** subnet # 8
PCI4.B2

*** subnet # 9
PCI3.B1

*** subnet # 10
PCI2.B2

*** subnet # 11
PCI2.B1

*** subnet # 12
R3.1 F4.2

*** subnet # 13
PCI3.B2 PCI4.B1 R6.1 TP9.1


Isolated subnets for: SLOT_1_24V

*** subnet # 1
TP8.1

*** subnet # 2
DRILL(TP8.1 L1) F1.2 PCI1.B1 PCI1.B2 TP2.1 R1.1 R2.1


Isolated subnets for: GND

*** subnet # 1
J5.2

*** subnet # 2
J5.1

*** subnet # 3
D5.2

*** subnet # 4
J1.6

*** subnet # 5
J1.5

*** subnet # 6
J1.4

*** subnet # 7
L1.4 VIA(23.1,20.5 L1)

*** subnet # 8
TP_C3.1 J14.2 J2.4

*** subnet # 9
C5.1 C12.1

*** subnet # 10
C1.2 C10.2 C9.2 C6.2 L2.4

*** subnet # 11
LED1.2 L4.2


Isolated subnets for: 24V_SERVO

*** subnet # 1
TP13.1

*** subnet # 2
PCI2.A2

*** subnet # 3
PCI7.A6

*** subnet # 4
PCI7.A5

*** subnet # 5
PCI7.A4

*** subnet # 6
PCI7.A3

*** subnet # 7
PCI7.A2

*** subnet # 8
PCI7.A1

*** subnet # 9
PCI6.A6

*** subnet # 10
PCI6.A5

*** subnet # 11
PCI6.A4

*** subnet # 12
PCI6.A3

*** subnet # 13
PCI6.A2

*** subnet # 14
PCI6.A1

*** subnet # 15
PCI5.A6

*** subnet # 16
PCI5.A5

*** subnet # 17
PCI5.A4

*** subnet # 18
PCI5.A3

*** subnet # 19
PCI5.A2

*** subnet # 20
PCI5.A1

*** subnet # 21
PCI4.A6

*** subnet # 22
PCI4.A5

*** subnet # 23
PCI4.A4

*** subnet # 24
PCI4.A3

*** subnet # 25
PCI4.A2

*** subnet # 26
PCI3.A6

*** subnet # 27
PCI3.A5

*** subnet # 28
PCI3.A4

*** subnet # 29
PCI3.A3

*** subnet # 30
PCI3.A2

*** subnet # 31
PCI3.A1

*** subnet # 32
PCI2.A6

*** subnet # 33
PCI2.A5

*** subnet # 34
PCI2.A4

*** subnet # 35
PCI2.A3

*** subnet # 36
PCI2.A1

*** subnet # 37
PCI4.A1 TP3.1 R7.1

*** subnet # 38
R4.1 F2.2 VIA(45.4,122.1 L1)


Isolated subnets for: 24V_FILTERED

*** subnet # 1
J13.2

*** subnet # 2
J13.1

*** subnet # 3
D6.4 VIA(1.7,70.2 L1)

*** subnet # 4
TP4.1 R5.1 VIA(-3,76.5 L1) VIA(-2.9,75.3 L1) D5.1 VIA(-5.7,69.9 L1) D1.4 L4.1 VIA(-2.4,82 L1) VIA(-2.4,80 L1)


Isolated subnets for: +24V_SWITCH

*** subnet # 1
J6.1

*** subnet # 2
R8.1 VIA(3.8,61.7 L1) VIA(3.8,60.7 L1) D6.3

*** subnet # 3
VIA(-0.8,61.7 L1) D6.1 VIA(-0.8,60.6 L1)

*** subnet # 4
D1.3 VIA(-3.3,61.6 L1) VIA(-3.3,60.6 L1)

*** subnet # 5
D1.1 VIA(-7.9,61.7 L1) VIA(-7.9,60.6 L1)

*** subnet # 6
C13.2 C5.2 J6.2


Isolated subnets for: 24V

*** subnet # 1
J4.2

*** subnet # 2
J1.3

*** subnet # 3
J4.1

*** subnet # 4
J1.2

*** subnet # 5
J1.1


Isolated subnets for: DIGITAL_GND

*** subnet # 1
TP10.1

*** subnet # 2
TP14.1

*** subnet # 3
PCI7.B30

*** subnet # 4
PCI7.B27

*** subnet # 5
PCI7.B24

*** subnet # 6
PCI7.B21

*** subnet # 7
PCI7.B18

*** subnet # 8
PCI7.B15

*** subnet # 9
PCI7.B12

*** subnet # 10
PCI7.A26

*** subnet # 11
PCI7.A23

*** subnet # 12
PCI7.A20

*** subnet # 13
PCI7.A17

*** subnet # 14
PCI7.A14

*** subnet # 15
PCI7.A11

*** subnet # 16
PCI6.B30

*** subnet # 17
PCI6.B27

*** subnet # 18
PCI6.B24

*** subnet # 19
PCI6.B21

*** subnet # 20
PCI6.B18

*** subnet # 21
PCI6.B15

*** subnet # 22
PCI6.B12

*** subnet # 23
PCI6.A26

*** subnet # 24
PCI6.A23

*** subnet # 25
PCI6.A20

*** subnet # 26
PCI6.A17

*** subnet # 27
PCI6.A14

*** subnet # 28
PCI6.A11

*** subnet # 29
PCI5.B30

*** subnet # 30
PCI5.B27

*** subnet # 31
PCI5.B24

*** subnet # 32
PCI5.B21

*** subnet # 33
PCI5.B18

*** subnet # 34
PCI5.B15

*** subnet # 35
PCI5.B12

*** subnet # 36
PCI5.A26

*** subnet # 37
PCI5.A23

*** subnet # 38
PCI5.A20

*** subnet # 39
PCI5.A17

*** subnet # 40
PCI5.A14

*** subnet # 41
PCI5.A11

*** subnet # 42
PCI4.B30

*** subnet # 43
PCI4.B27

*** subnet # 44
PCI4.B24

*** subnet # 45
PCI4.B21

*** subnet # 46
PCI4.B18

*** subnet # 47
PCI4.B15

*** subnet # 48
PCI4.B12

*** subnet # 49
PCI4.A26

*** subnet # 50
PCI4.A23

*** subnet # 51
PCI4.A20

*** subnet # 52
PCI4.A17

*** subnet # 53
PCI4.A14

*** subnet # 54
PCI4.A11

*** subnet # 55
PCI3.B30

*** subnet # 56
PCI3.B27

*** subnet # 57
PCI3.B24

*** subnet # 58
PCI3.B21

*** subnet # 59
PCI3.B18

*** subnet # 60
PCI3.B15

*** subnet # 61
PCI3.B12

*** subnet # 62
PCI3.A26

*** subnet # 63
PCI3.A23

*** subnet # 64
PCI3.A20

*** subnet # 65
PCI3.A17

*** subnet # 66
PCI3.A14

*** subnet # 67
PCI3.A11

*** subnet # 68
PCI1.B48

*** subnet # 69
PCI1.B45

*** subnet # 70
PCI1.B42

*** subnet # 71
PCI1.B39

*** subnet # 72
PCI1.B36

*** subnet # 73
PCI1.B33

*** subnet # 74
PCI1.B30

*** subnet # 75
PCI1.B27

*** subnet # 76
PCI1.B24

*** subnet # 77
PCI1.B21

*** subnet # 78
PCI1.B18

*** subnet # 79
PCI1.B15

*** subnet # 80
PCI1.B12

*** subnet # 81
PCI1.A47

*** subnet # 82
PCI1.A44

*** subnet # 83
PCI1.A41

*** subnet # 84
PCI1.A38

*** subnet # 85
PCI1.A35

*** subnet # 86
PCI1.A32

*** subnet # 87
PCI1.A29

*** subnet # 88
PCI1.A26

*** subnet # 89
PCI1.A23

*** subnet # 90
PCI1.A20

*** subnet # 91
PCI1.A17

*** subnet # 92
PCI1.A14

*** subnet # 93
PCI2.B30

*** subnet # 94
PCI2.B27

*** subnet # 95
PCI2.B24

*** subnet # 96
PCI2.B21

*** subnet # 97
PCI2.B18

*** subnet # 98
PCI2.B15

*** subnet # 99
PCI2.B12

*** subnet # 100
PCI2.A26

*** subnet # 101
PCI2.A23

*** subnet # 102
PCI2.A20

*** subnet # 103
PCI2.A17

*** subnet # 104
PCI2.A14

*** subnet # 105
PCI2.A11

*** subnet # 106
L1.3 VIA(25.9,20.5 L1)

*** subnet # 107
C3.1 VIA(29.2,20.9 L1)

*** subnet # 108
C15.2 VIA(32.1,22.6 L1)

*** subnet # 109
LED3.2 J7.2 J9.2 VIA(50.5,17.1 L1)

*** subnet # 110
C4.2 TP_C2.1

*** subnet # 111
LED2.2 C21.2 C18.2 C17.1 VIA(0.2,88 L1) L4.3


Isolated subnets for: SERVO_GND

*** subnet # 1
TP11.1

*** subnet # 2
PCI7.B10

*** subnet # 3
PCI7.B9

*** subnet # 4
PCI7.A10

*** subnet # 5
PCI7.A9

*** subnet # 6
PCI7.A8

*** subnet # 7
PCI7.A7

*** subnet # 8
PCI6.B10

*** subnet # 9
PCI6.B9

*** subnet # 10
PCI6.A10

*** subnet # 11
PCI6.A9

*** subnet # 12
PCI6.A8

*** subnet # 13
PCI6.A7

*** subnet # 14
PCI5.B10

*** subnet # 15
PCI5.B9

*** subnet # 16
PCI5.A10

*** subnet # 17
PCI5.A9

*** subnet # 18
PCI5.A8

*** subnet # 19
PCI5.A7

*** subnet # 20
PCI4.B10

*** subnet # 21
PCI4.B9

*** subnet # 22
PCI4.A10

*** subnet # 23
PCI4.A9

*** subnet # 24
PCI4.A7

*** subnet # 25
PCI3.B10

*** subnet # 26
PCI3.B9

*** subnet # 27
PCI3.A10

*** subnet # 28
PCI3.A9

*** subnet # 29
PCI3.A8

*** subnet # 30
PCI3.A7

*** subnet # 31
PCI2.B10

*** subnet # 32
PCI2.B9

*** subnet # 33
PCI2.A10

*** subnet # 34
PCI2.A9

*** subnet # 35
PCI2.A8

*** subnet # 36
PCI2.A7

*** subnet # 37
LED4.2

*** subnet # 38
PCI4.A8 J8.2

*** subnet # 39
C11.2 C8.2 C7.1 L2.3 TP_C1.1


Isolated subnets for: 24V_SAFE

*** subnet # 1
J11.1

*** subnet # 2
J11.2

*** subnet # 3
L1.1

*** subnet # 4
L2.1 VIA(23.4,123.2 L1)


Isolated subnets for: EARTH

*** subnet # 1
J3.1

*** subnet # 2
J12.2

*** subnet # 3
J3.2

*** subnet # 4
C12.2 C13.1 C1.1 C10.1 C9.1 C6.1 PCI2.B49 PCI1.B49 PCI3.B49 PCI4.B49 PCI5.B49 PCI7.B49 PCI6.B49 J12.1 VIA(-3.3,58 L1) VIA(-4.6,58 L1).

What's the mistake I have done? Please help me on this topic.

hi vikash,

Gnd is not connecting properly, you should do fanout for GND net

Hi Kapil,

Thank you for your help. Now all the errors I have sorted. No errors in my design. I have got one doubt. I got GND,DIGITAL_GROUND,SERVO_GROUND copper pour . When I click on to GND and flood it all my servo ground and digital ground also flooding. does it mean there is a short circuit ? More over it happen same for digital power and servo power copper pour too. I dont want to short ground and power. Please do help me on this topic. I have attached the picture for you.



Yellow, green, pink and brown are different grounds like dig,servo. blue is digital power supply. when I flood ground blue is also flooding. is there a short circuit between ground and power ?