bonjour,
je me lance dans la fabrication d’un pcb v4.1,
après avoir fait les démarche sur le site de jlcpcb avec vérification et il pose quelques question avant de lancer la fabrication.
Hello,
Sorry to bother you, but there is an issue that we want to confirm with you before proceeding.
As shown below, you ordered 4 layer board, but there is no inner layers, only 2 copper layers, shall we make 2 layer board?
je pense que 2 couches suffise?
Sorry to bother you, but there are 2 thing that we want to confirm with you about your SMT order before proceeding.
1 As shown below, seems the packages of the parts ( R5,R55) cannot match the corresponding pads on the PCB board, so we are unable to assemble them.
For this case there are 3 options for your choose as follows:
A- we enable the replace part button for you that you can re-select the corrected part
B- we leave this parts unpopulated and refund cost of the mismatch parts back to you to proceed and can’t ship the unsoldered parts with PCB due to the customs clearance issue,
C-cancel this PCB order and SMT order to place new order (there is no replace gerber file button for SMT order)
Pls consider and advise which case suits you, A or B or C??
2As shown below, there’s no solder mask opening for below indicated pads in image 2. Here we have 2 suggestions.
A: Open them to be covered by tin. So that they can be soldered components.
B:Follow the file to cover them with solder mask ink.
Which case would you like?
là, je sèche
Sorry to bother you, but there is one thing that we want to confirm with you about your SMT order before proceeding.
The spacing between CN2 and U10 is too small, we are not sure if they can place together or not, would you ike to continue to solder them?
et ici aussi.
merci
quite a few error you have 
New V4 STD board is only 2 layers.
This is what I’d try to send:
The same design worked for dozens of others.
For question 2: Please open them and let it be covered by tin for later soldering.
Previously both R5, R55 and C2 could be fitted for the same design.
Could you please try to populate it?
Salut
J ai trouvé la solution hier soir.
R5 ET R55 on été changé dans le BOM
de base il y avait
C22975
La derniere version du std est 4.2, pas 4.1. Il faut aussi prendre le BOM dans le même dosier que le Gerber.
Pour les R5 et R55 tu as fait des subtitutions? ils devraient être de format 0603 pas 1206
