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Ordering EVO PCBs at chinese manufactures questions and help


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2 hours ago, goredaimon said:

Hello friends, how are you?

Is it possible to change most components to a trought-hole design? I know some are impossible, like the processor, but capacitors, resistors, diodes, etc could be.

Possible yes but would be a lot more expensive for manufacturing  because of no automatic placement but manual placement of the components.

So does not make any sense

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As more and more start to order EVO PCBs fully assembled at chinese manufacturer and I get asked the same questions again and again, I though I open a thread about questions and their solution. Plea

That is what I did here https://www.pcbway.com/project/shareproject/PIN2DMD_EVO128x32_RGB_LED_Dotmatrix_Pinball_Display_Controller.html https://www.pcbway.com/project/shareproject/PIN2DMD_EV

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2 hours ago, lucky1 said:

Possible yes but would be a lot more expensive for manufacturing  because of no automatic placement but manual placement of the components.

So does not make any sense

I understand. Prices are better when doind SMT at China.

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  • 3 weeks later...
49 minutes ago, yenningComity said:

Want to order of pcbway, but wanted to make sure that the evo board listed is the current version. They dont list when it was last updated or a version number on their site. It just shows when it was first uploaded.

I always update the files on pcbway. It is the latest

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  • 2 weeks later...

Hi Guys 

I have ordered also 10 Pin2DMD Boards by PCBway. Now the send me an email with a few questions, perhaps @lucky1 can answering them.

see attachement, especially the two picture with these red arrows.

Thanks 

1.jpg

2.jpg

arrow pointing cathode

arrow pointing cathode.png

please confirm  arrow pointing the cathode

please confirm  arrow pointing the cathode.png

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Just ordering a new batch of PIN2DMD, they are requesting some changes of the BOM. Some are pretty straightforward (diodes, headers), one is more concerning

Specifically: they want to change the voltage regulator  (IC3) to AZ2940D-3.3TRE1

Looking at the datasheet, it seems to me this new regulator has lower characteristics, ie max input voltage is 16V (recommended max 13.2V) compared to the original regulator (26V). That said, checking the schematics that should be fine, since the input voltage is 5V anyway, right ?

Cheers

 

 

 

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3 hours ago, Thargor said:

Hi Guys 

I have ordered also 10 Pin2DMD Boards by PCBway. Now the send me an email with a few questions, perhaps @lucky1 can answering them.

see attachement, especially the two picture with these red arrows.

Thanks 

1.jpg

2.jpg

arrow pointing cathode

arrow pointing cathode.png

please confirm  arrow pointing the cathode

please confirm  arrow pointing the cathode.png

Jut go back in this thread and you will find the answer

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I think you mean this post: 

 

I see there is no differenz between my board and that posted above... looks like the same.. but I´m not the speciallist like you ?

 

 

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16 hours ago, Thargor said:

 

Hi Guys 

I have ordered also 10 Pin2DMD Boards by PCBway. Now the send me an email with a few questions, perhaps @lucky1 can answering them.

 

If you check the sample order folder when you download the order zip off GitHub it will have some pictures in there that you can compare to. They are a good resolution so you can zoom in too. This will help you check orientation of parts etc and it even has arrows for the cathode and anode.

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28 minutes ago, Ashram56 said:

@lucky1 , could you please provide a PN for a female connector that would fit the existing WPC 12V male connector on PIN2DMD ?

Or alternatively, could you please confirm this reference is correct:

VHR-4N | Boitier de connecteur Femelle, 4 contacts 1 rang pas 3.96mm, Droit, Montage sur câble, série VHR | RS Components (rs-online.com)

 

Thanks

Why don´t you look at the partnumber of the male connector in the BOM of the pcb to get the type ? 

It is called VH3.96

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  • 2 weeks later...

Hi, 
i'm a little in trouble to check this equivalent components proposed by pcb way:

original BOM: FC4SDCBMF8.0-T1    -> Proposed:    6CS08000F20UCG (lower load capacitance)
original BOM:TS2940CP33    -> Proposed:AZ2940D-3.3TRE1 (many voltage difference)
original BOM:SK54BTR        -> Proposed: SK54B (maybe identical?)

Thanks to everyone!!

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1 hour ago, antoniomauro said:

Hi, 
i'm a little in trouble to check this equivalent components proposed by pcb way:

original BOM: FC4SDCBMF8.0-T1    -> Proposed:    6CS08000F20UCG (lower load capacitance)
original BOM:TS2940CP33    -> Proposed:AZ2940D-3.3TRE1 (many voltage difference)
original BOM:SK54BTR        -> Proposed: SK54B (maybe identical?)

Thanks to everyone!!

Should be o.k.

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There's nothing wrong with the order. You need to source the LED panels separately and build the displays on your own. PCBWay only builds the boards and does the SMT work for you.

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On 3/9/2021 at 5:04 PM, lucky1 said:

Why don´t you look at the partnumber of the male connector in the BOM of the pcb to get the type ? 

It is called VH3.96

That's actually what I had done to find the corresponding  part I referenced in my post, just wanted to get confirmation from the expert. 

 

Anyway, I ordered it and it fits nicely. 

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