GTA04b7/Neo900

Issue 657: GPS antenna C-springs position

Reported by Joerg Reisenweber, Sep 8, 2014

from proto_V0 I see GSM antenna C-springs are ~1mm closer to PCB 
edge than on M900 PCB.

This not necessarily introduces problems, but should nevertheless 
get checked and adjusted

Comment 1 by Nikolaus Schaller, Sep 8, 2014

Duplicate with #518?

Please check if this is not yet fixed in the latest available 
version2-wip (http://projects.goldelico.com/p/neo900/downloads/60/)  
since you mention "proto_V0". There have been fixes in 
between.

See also: http://projects.goldelico.com/p/neo900/issues/518/

Comment 2 by Joerg Reisenweber, Sep 11, 2014

sorry, typo. GPS C-springs that is. Next to USB, labeled X6201 X6202 
in N900 docs. Checked in GTA04b7V1.brd and the pads still end at 
edge of PCB while they should have a ~0.5mm distance, and thus the 
C-springs should be mounted a fraction of a millimeter further 
towards PCB center

Summary: GPS antenna C-springs position

Comment 3 by Nikolaus Schaller, Sep 24, 2014

It is still unclear if this is a real issue.
The pads as defined in EAGLE are indeed bigger and the Gerber's show 
them going to the edges. But thePCB manufacturer does not make them 
go exactly to the edge.
The reason is that they are defined a little bigger than needed so 
that soldering is improved. But then, the inner edge (closer to the 
camera hole) should be at the right location.
IMHO, this can only be verified if the next protoype gets them 
placed wrongly or not.

Created: 3 years 9 months ago by Joerg Reisenweber

Updated: 3 years 8 months ago

Status: New

Followed by: 1 person

Labels:
Type:Defect
Milestone:V2
Priority:High